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win32: use tastools lua

This commit is contained in:
zeromus 2009-12-11 05:22:46 +00:00
parent cf04dac50f
commit e0040d0da9
68 changed files with 40 additions and 14630 deletions
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44
desmume/src/windows/DeSmuME_2005.vcproj
View File

@ -54,7 +54,7 @@
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@ -78,9 +78,9 @@
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36
desmume/src/windows/DeSmuME_2008.vcproj
View File

@ -55,7 +55,7 @@
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EnableFiberSafeOptimizations="true"
WholeProgramOptimization="false"
AdditionalIncludeDirectories=".;..;&quot;lua\lua-5.1.4\src&quot;;&quot;glib-2.20.1\build&quot;;&quot;glib-2.20.1\build\glib&quot;;.\zlib123;.\zziplib;.\winpcap;userconfig;defaultconfig;.\7z;.\agg\include;.\agg\examples"
AdditionalIncludeDirectories=".;..;&quot;lua\include&quot;;&quot;glib-2.20.1\build&quot;;&quot;glib-2.20.1\build\glib&quot;;.\zlib123;.\zziplib;.\winpcap;userconfig;defaultconfig;.\7z;.\agg\include;.\agg\examples"
PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;GLIB_STATIC_COMPILATION;WIN32;HAVE_LIBZ;NOMINMAX;RELEASE;NDEBUG"
StringPooling="true"
ExceptionHandling="1"
@ -447,9 +447,9 @@
/>
<Tool
Name="VCLinkerTool"
AdditionalDependencies="glib-vc8-Win32.lib 7z-vc8-Win32.lib zlib-vc8-Win32.lib agg-2.5.lib lua-5.1.4-x86.lib vfw32.lib winmm.lib opengl32.lib glu32.lib ws2_32.lib user32.lib gdi32.lib directx\dxguid.lib shell32.lib comdlg32.lib directx\dxerr8.lib directx\dsound.lib directx\dinput8.lib directx\ddraw.lib shlwapi.lib winpcap\wpcap.lib comctl32.lib"
AdditionalDependencies="lua-vc8-Win32.lib glib-vc8-Win32.lib 7z-vc8-Win32.lib zlib-vc8-Win32.lib agg-2.5.lib lua-5.1.4-x86.lib vfw32.lib winmm.lib opengl32.lib glu32.lib ws2_32.lib user32.lib gdi32.lib directx\dxguid.lib shell32.lib comdlg32.lib directx\dxerr8.lib directx\dsound.lib directx\dinput8.lib directx\ddraw.lib shlwapi.lib winpcap\wpcap.lib comctl32.lib"
OutputFile="$(OutDir)\$(ProjectName)_releaseFastBuild.exe"
AdditionalLibraryDirectories=".\zlib123;glib-2.20.1;.\lua\lib;.\7z;agg"
AdditionalLibraryDirectories=".\zlib123;glib-2.20.1;.\lua;.\7z;agg"
DelayLoadDLLs="wpcap.dll"
GenerateDebugInformation="true"
OptimizeReferences="2"
@ -518,7 +518,7 @@
OmitFramePointers="true"
EnableFiberSafeOptimizations="true"
WholeProgramOptimization="false"
AdditionalIncludeDirectories=".;..;&quot;lua\lua-5.1.4\src&quot;;&quot;glib-2.20.1\build&quot;;&quot;glib-2.20.1\build\glib&quot;;.\zlib123;.\zziplib;.\winpcap;userconfig;defaultconfig;.\7z;.\agg\include;.\agg\examples"
AdditionalIncludeDirectories=".;..;&quot;lua\include&quot;;&quot;glib-2.20.1\build&quot;;&quot;glib-2.20.1\build\glib&quot;;.\zlib123;.\zziplib;.\winpcap;userconfig;defaultconfig;.\7z;.\agg\include;.\agg\examples"
PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;GLIB_STATIC_COMPILATION;WIN32;HAVE_LIBZ;NOMINMAX;RELEASE;NDEBUG"
StringPooling="true"
ExceptionHandling="1"
@ -542,9 +542,9 @@
/>
<Tool
Name="VCLinkerTool"
AdditionalDependencies="glib-vc8-x64.lib 7z-vc8-x64.lib zlib-vc8-x64.lib agg-2.5-x64.lib lua-5.1.4-x64.lib vfw32.lib winmm.lib opengl32.lib glu32.lib ws2_32.lib user32.lib gdi32.lib directx\x64\dxguid.lib shell32.lib comdlg32.lib directx\x64\dxerr8.lib directx\x64\dsound.lib directx\x64\dinput8.lib directx\x64\ddraw.lib shlwapi.lib winpcap\x64\wpcap.lib"
AdditionalDependencies="lua-vc8-x64.lib glib-vc8-x64.lib 7z-vc8-x64.lib zlib-vc8-x64.lib agg-2.5-x64.lib vfw32.lib winmm.lib opengl32.lib glu32.lib ws2_32.lib user32.lib gdi32.lib directx\x64\dxguid.lib shell32.lib comdlg32.lib directx\x64\dxerr8.lib directx\x64\dsound.lib directx\x64\dinput8.lib directx\x64\ddraw.lib shlwapi.lib winpcap\x64\wpcap.lib"
OutputFile="$(OutDir)\$(ProjectName)_x64_releaseFastBuild.exe"
AdditionalLibraryDirectories=".\zlib123;glib-2.20.1;.\lua\lib;.\7z;agg"
AdditionalLibraryDirectories=".\zlib123;glib-2.20.1;.\lua;.\7z;agg"
DelayLoadDLLs="wpcap.dll"
GenerateDebugInformation="true"
OptimizeReferences="2"

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desmume/src/windows/lua/lua-5.1.4/src/lua.h → desmume/src/windows/lua/include/lua.h
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34
desmume/src/windows/lua/lua-5.1.4/COPYRIGHT
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@ -1,34 +0,0 @@
Lua License
-----------
Lua is licensed under the terms of the MIT license reproduced below.
This means that Lua is free software and can be used for both academic
and commercial purposes at absolutely no cost.
For details and rationale, see http://www.lua.org/license.html .
===============================================================================
Copyright (C) 1994-2008 Lua.org, PUC-Rio.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
===============================================================================
(end of COPYRIGHT)

182
desmume/src/windows/lua/lua-5.1.4/src/Makefile
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@ -1,182 +0,0 @@
# makefile for building Lua
# see ../INSTALL for installation instructions
# see ../Makefile and luaconf.h for further customization
# == CHANGE THE SETTINGS BELOW TO SUIT YOUR ENVIRONMENT =======================
# Your platform. See PLATS for possible values.
PLAT= none
CC= gcc
CFLAGS= -O2 -Wall $(MYCFLAGS)
AR= ar rcu
RANLIB= ranlib
RM= rm -f
LIBS= -lm $(MYLIBS)
MYCFLAGS=
MYLDFLAGS=
MYLIBS=
# == END OF USER SETTINGS. NO NEED TO CHANGE ANYTHING BELOW THIS LINE =========
PLATS= aix ansi bsd freebsd generic linux macosx mingw posix solaris
LUA_A= liblua.a
CORE_O= lapi.o lcode.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o lmem.o \
lobject.o lopcodes.o lparser.o lstate.o lstring.o ltable.o ltm.o \
lundump.o lvm.o lzio.o
LIB_O= lauxlib.o lbaselib.o ldblib.o liolib.o lmathlib.o loslib.o ltablib.o \
lstrlib.o loadlib.o linit.o
LUA_T= lua
LUA_O= lua.o
LUAC_T= luac
LUAC_O= luac.o print.o
ALL_O= $(CORE_O) $(LIB_O) $(LUA_O) $(LUAC_O)
ALL_T= $(LUA_A) $(LUA_T) $(LUAC_T)
ALL_A= $(LUA_A)
default: $(PLAT)
all: $(ALL_T)
o: $(ALL_O)
a: $(ALL_A)
$(LUA_A): $(CORE_O) $(LIB_O)
$(AR) $@ $?
$(RANLIB) $@
$(LUA_T): $(LUA_O) $(LUA_A)
$(CC) -o $@ $(MYLDFLAGS) $(LUA_O) $(LUA_A) $(LIBS)
$(LUAC_T): $(LUAC_O) $(LUA_A)
$(CC) -o $@ $(MYLDFLAGS) $(LUAC_O) $(LUA_A) $(LIBS)
clean:
$(RM) $(ALL_T) $(ALL_O)
depend:
@$(CC) $(CFLAGS) -MM l*.c print.c
echo:
@echo "PLAT = $(PLAT)"
@echo "CC = $(CC)"
@echo "CFLAGS = $(CFLAGS)"
@echo "AR = $(AR)"
@echo "RANLIB = $(RANLIB)"
@echo "RM = $(RM)"
@echo "MYCFLAGS = $(MYCFLAGS)"
@echo "MYLDFLAGS = $(MYLDFLAGS)"
@echo "MYLIBS = $(MYLIBS)"
# convenience targets for popular platforms
none:
@echo "Please choose a platform:"
@echo " $(PLATS)"
aix:
$(MAKE) all CC="xlc" CFLAGS="-O2 -DLUA_USE_POSIX -DLUA_USE_DLOPEN" MYLIBS="-ldl" MYLDFLAGS="-brtl -bexpall"
ansi:
$(MAKE) all MYCFLAGS=-DLUA_ANSI
bsd:
$(MAKE) all MYCFLAGS="-DLUA_USE_POSIX -DLUA_USE_DLOPEN" MYLIBS="-Wl,-E"
freebsd:
$(MAKE) all MYCFLAGS="-DLUA_USE_LINUX" MYLIBS="-Wl,-E -lreadline"
generic:
$(MAKE) all MYCFLAGS=
linux:
$(MAKE) all MYCFLAGS=-DLUA_USE_LINUX MYLIBS="-Wl,-E -ldl -lreadline -lhistory -lncurses"
macosx:
$(MAKE) all MYCFLAGS=-DLUA_USE_LINUX MYLIBS="-lreadline"
# use this on Mac OS X 10.3-
# $(MAKE) all MYCFLAGS=-DLUA_USE_MACOSX
mingw:
$(MAKE) "LUA_A=lua51.dll" "LUA_T=lua.exe" \
"AR=$(CC) -shared -o" "RANLIB=strip --strip-unneeded" \
"MYCFLAGS=-DLUA_BUILD_AS_DLL" "MYLIBS=" "MYLDFLAGS=-s" lua.exe
$(MAKE) "LUAC_T=luac.exe" luac.exe
posix:
$(MAKE) all MYCFLAGS=-DLUA_USE_POSIX
solaris:
$(MAKE) all MYCFLAGS="-DLUA_USE_POSIX -DLUA_USE_DLOPEN" MYLIBS="-ldl"
# list targets that do not create files (but not all makes understand .PHONY)
.PHONY: all $(PLATS) default o a clean depend echo none
# DO NOT DELETE
lapi.o: lapi.c lua.h luaconf.h lapi.h lobject.h llimits.h ldebug.h \
lstate.h ltm.h lzio.h lmem.h ldo.h lfunc.h lgc.h lstring.h ltable.h \
lundump.h lvm.h
lauxlib.o: lauxlib.c lua.h luaconf.h lauxlib.h
lbaselib.o: lbaselib.c lua.h luaconf.h lauxlib.h lualib.h
lcode.o: lcode.c lua.h luaconf.h lcode.h llex.h lobject.h llimits.h \
lzio.h lmem.h lopcodes.h lparser.h ldebug.h lstate.h ltm.h ldo.h lgc.h \
ltable.h
ldblib.o: ldblib.c lua.h luaconf.h lauxlib.h lualib.h
ldebug.o: ldebug.c lua.h luaconf.h lapi.h lobject.h llimits.h lcode.h \
llex.h lzio.h lmem.h lopcodes.h lparser.h ldebug.h lstate.h ltm.h ldo.h \
lfunc.h lstring.h lgc.h ltable.h lvm.h
ldo.o: ldo.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h ltm.h \
lzio.h lmem.h ldo.h lfunc.h lgc.h lopcodes.h lparser.h lstring.h \
ltable.h lundump.h lvm.h
ldump.o: ldump.c lua.h luaconf.h lobject.h llimits.h lstate.h ltm.h \
lzio.h lmem.h lundump.h
lfunc.o: lfunc.c lua.h luaconf.h lfunc.h lobject.h llimits.h lgc.h lmem.h \
lstate.h ltm.h lzio.h
lgc.o: lgc.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h ltm.h \
lzio.h lmem.h ldo.h lfunc.h lgc.h lstring.h ltable.h
linit.o: linit.c lua.h luaconf.h lualib.h lauxlib.h
liolib.o: liolib.c lua.h luaconf.h lauxlib.h lualib.h
llex.o: llex.c lua.h luaconf.h ldo.h lobject.h llimits.h lstate.h ltm.h \
lzio.h lmem.h llex.h lparser.h lstring.h lgc.h ltable.h
lmathlib.o: lmathlib.c lua.h luaconf.h lauxlib.h lualib.h
lmem.o: lmem.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h \
ltm.h lzio.h lmem.h ldo.h
loadlib.o: loadlib.c lua.h luaconf.h lauxlib.h lualib.h
lobject.o: lobject.c lua.h luaconf.h ldo.h lobject.h llimits.h lstate.h \
ltm.h lzio.h lmem.h lstring.h lgc.h lvm.h
lopcodes.o: lopcodes.c lopcodes.h llimits.h lua.h luaconf.h
loslib.o: loslib.c lua.h luaconf.h lauxlib.h lualib.h
lparser.o: lparser.c lua.h luaconf.h lcode.h llex.h lobject.h llimits.h \
lzio.h lmem.h lopcodes.h lparser.h ldebug.h lstate.h ltm.h ldo.h \
lfunc.h lstring.h lgc.h ltable.h
lstate.o: lstate.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h \
ltm.h lzio.h lmem.h ldo.h lfunc.h lgc.h llex.h lstring.h ltable.h
lstring.o: lstring.c lua.h luaconf.h lmem.h llimits.h lobject.h lstate.h \
ltm.h lzio.h lstring.h lgc.h
lstrlib.o: lstrlib.c lua.h luaconf.h lauxlib.h lualib.h
ltable.o: ltable.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h \
ltm.h lzio.h lmem.h ldo.h lgc.h ltable.h
ltablib.o: ltablib.c lua.h luaconf.h lauxlib.h lualib.h
ltm.o: ltm.c lua.h luaconf.h lobject.h llimits.h lstate.h ltm.h lzio.h \
lmem.h lstring.h lgc.h ltable.h
lua.o: lua.c lua.h luaconf.h lauxlib.h lualib.h
luac.o: luac.c lua.h luaconf.h lauxlib.h ldo.h lobject.h llimits.h \
lstate.h ltm.h lzio.h lmem.h lfunc.h lopcodes.h lstring.h lgc.h \
lundump.h
lundump.o: lundump.c lua.h luaconf.h ldebug.h lstate.h lobject.h \
llimits.h ltm.h lzio.h lmem.h ldo.h lfunc.h lstring.h lgc.h lundump.h
lvm.o: lvm.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h ltm.h \
lzio.h lmem.h ldo.h lfunc.h lgc.h lopcodes.h lstring.h ltable.h lvm.h
lzio.o: lzio.c lua.h luaconf.h llimits.h lmem.h lstate.h lobject.h ltm.h \
lzio.h
print.o: print.c ldebug.h lstate.h lua.h luaconf.h lobject.h llimits.h \
ltm.h lzio.h lmem.h lopcodes.h lundump.h
# (end of Makefile)

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desmume/src/windows/lua/lua-5.1.4/src/lapi.c
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652
desmume/src/windows/lua/lua-5.1.4/src/lauxlib.c
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@ -1,652 +0,0 @@
/*
** $Id: lauxlib.c,v 1.159.1.3 2008/01/21 13:20:51 roberto Exp $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
#include <ctype.h>
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* This file uses only the official API of Lua.
** Any function declared here could be written as an application function.
*/
#define lauxlib_c
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
#define FREELIST_REF 0 /* free list of references */
/* convert a stack index to positive */
#define abs_index(L, i) ((i) > 0 || (i) <= LUA_REGISTRYINDEX ? (i) : \
lua_gettop(L) + (i) + 1)
/*
** {======================================================
** Error-report functions
** =======================================================
*/
LUALIB_API int luaL_argerror (lua_State *L, int narg, const char *extramsg) {
lua_Debug ar;
if (!lua_getstack(L, 0, &ar)) /* no stack frame? */
return luaL_error(L, "bad argument #%d (%s)", narg, extramsg);
lua_getinfo(L, "n", &ar);
if (strcmp(ar.namewhat, "method") == 0) {
narg--; /* do not count `self' */
if (narg == 0) /* error is in the self argument itself? */
return luaL_error(L, "calling " LUA_QS " on bad self (%s)",
ar.name, extramsg);
}
if (ar.name == NULL)
ar.name = "?";
return luaL_error(L, "bad argument #%d to " LUA_QS " (%s)",
narg, ar.name, extramsg);
}
LUALIB_API int luaL_typerror (lua_State *L, int narg, const char *tname) {
const char *msg = lua_pushfstring(L, "%s expected, got %s",
tname, luaL_typename(L, narg));
return luaL_argerror(L, narg, msg);
}
static void tag_error (lua_State *L, int narg, int tag) {
luaL_typerror(L, narg, lua_typename(L, tag));
}
LUALIB_API void luaL_where (lua_State *L, int level) {
lua_Debug ar;
if (lua_getstack(L, level, &ar)) { /* check function at level */
lua_getinfo(L, "Sl", &ar); /* get info about it */
if (ar.currentline > 0) { /* is there info? */
lua_pushfstring(L, "%s:%d: ", ar.short_src, ar.currentline);
return;
}
}
lua_pushliteral(L, ""); /* else, no information available... */
}
LUALIB_API int luaL_error (lua_State *L, const char *fmt, ...) {
va_list argp;
va_start(argp, fmt);
luaL_where(L, 1);
lua_pushvfstring(L, fmt, argp);
va_end(argp);
lua_concat(L, 2);
return lua_error(L);
}
/* }====================================================== */
LUALIB_API int luaL_checkoption (lua_State *L, int narg, const char *def,
const char *const lst[]) {
const char *name = (def) ? luaL_optstring(L, narg, def) :
luaL_checkstring(L, narg);
int i;
for (i=0; lst[i]; i++)
if (strcmp(lst[i], name) == 0)
return i;
return luaL_argerror(L, narg,
lua_pushfstring(L, "invalid option " LUA_QS, name));
}
LUALIB_API int luaL_newmetatable (lua_State *L, const char *tname) {
lua_getfield(L, LUA_REGISTRYINDEX, tname); /* get registry.name */
if (!lua_isnil(L, -1)) /* name already in use? */
return 0; /* leave previous value on top, but return 0 */
lua_pop(L, 1);
lua_newtable(L); /* create metatable */
lua_pushvalue(L, -1);
lua_setfield(L, LUA_REGISTRYINDEX, tname); /* registry.name = metatable */
return 1;
}
LUALIB_API void *luaL_checkudata (lua_State *L, int ud, const char *tname) {
void *p = lua_touserdata(L, ud);
if (p != NULL) { /* value is a userdata? */
if (lua_getmetatable(L, ud)) { /* does it have a metatable? */
lua_getfield(L, LUA_REGISTRYINDEX, tname); /* get correct metatable */
if (lua_rawequal(L, -1, -2)) { /* does it have the correct mt? */
lua_pop(L, 2); /* remove both metatables */
return p;
}
}
}
luaL_typerror(L, ud, tname); /* else error */
return NULL; /* to avoid warnings */
}
LUALIB_API void luaL_checkstack (lua_State *L, int space, const char *mes) {
if (!lua_checkstack(L, space))
luaL_error(L, "stack overflow (%s)", mes);
}
LUALIB_API void luaL_checktype (lua_State *L, int narg, int t) {
if (lua_type(L, narg) != t)
tag_error(L, narg, t);
}
LUALIB_API void luaL_checkany (lua_State *L, int narg) {
if (lua_type(L, narg) == LUA_TNONE)
luaL_argerror(L, narg, "value expected");
}
LUALIB_API const char *luaL_checklstring (lua_State *L, int narg, size_t *len) {
const char *s = lua_tolstring(L, narg, len);
if (!s) tag_error(L, narg, LUA_TSTRING);
return s;
}
LUALIB_API const char *luaL_optlstring (lua_State *L, int narg,
const char *def, size_t *len) {
if (lua_isnoneornil(L, narg)) {
if (len)
*len = (def ? strlen(def) : 0);
return def;
}
else return luaL_checklstring(L, narg, len);
}
LUALIB_API lua_Number luaL_checknumber (lua_State *L, int narg) {
lua_Number d = lua_tonumber(L, narg);
if (d == 0 && !lua_isnumber(L, narg)) /* avoid extra test when d is not 0 */
tag_error(L, narg, LUA_TNUMBER);
return d;
}
LUALIB_API lua_Number luaL_optnumber (lua_State *L, int narg, lua_Number def) {
return luaL_opt(L, luaL_checknumber, narg, def);
}
LUALIB_API lua_Integer luaL_checkinteger (lua_State *L, int narg) {
lua_Integer d = lua_tointeger(L, narg);
if (d == 0 && !lua_isnumber(L, narg)) /* avoid extra test when d is not 0 */
tag_error(L, narg, LUA_TNUMBER);
return d;
}
LUALIB_API lua_Integer luaL_optinteger (lua_State *L, int narg,
lua_Integer def) {
return luaL_opt(L, luaL_checkinteger, narg, def);
}
LUALIB_API int luaL_getmetafield (lua_State *L, int obj, const char *event) {
if (!lua_getmetatable(L, obj)) /* no metatable? */
return 0;
lua_pushstring(L, event);
lua_rawget(L, -2);
if (lua_isnil(L, -1)) {
lua_pop(L, 2); /* remove metatable and metafield */
return 0;
}
else {
lua_remove(L, -2); /* remove only metatable */
return 1;
}
}
LUALIB_API int luaL_callmeta (lua_State *L, int obj, const char *event) {
obj = abs_index(L, obj);
if (!luaL_getmetafield(L, obj, event)) /* no metafield? */
return 0;
lua_pushvalue(L, obj);
lua_call(L, 1, 1);
return 1;
}
LUALIB_API void (luaL_register) (lua_State *L, const char *libname,
const luaL_Reg *l) {
luaI_openlib(L, libname, l, 0);
}
static int libsize (const luaL_Reg *l) {
int size = 0;
for (; l->name; l++) size++;
return size;
}
LUALIB_API void luaI_openlib (lua_State *L, const char *libname,
const luaL_Reg *l, int nup) {
if (libname) {
int size = libsize(l);
/* check whether lib already exists */
luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 1);
lua_getfield(L, -1, libname); /* get _LOADED[libname] */
if (!lua_istable(L, -1)) { /* not found? */
lua_pop(L, 1); /* remove previous result */
/* try global variable (and create one if it does not exist) */
if (luaL_findtable(L, LUA_GLOBALSINDEX, libname, size) != NULL)
luaL_error(L, "name conflict for module " LUA_QS, libname);
lua_pushvalue(L, -1);
lua_setfield(L, -3, libname); /* _LOADED[libname] = new table */
}
lua_remove(L, -2); /* remove _LOADED table */
lua_insert(L, -(nup+1)); /* move library table to below upvalues */
}
for (; l->name; l++) {
int i;
for (i=0; i<nup; i++) /* copy upvalues to the top */
lua_pushvalue(L, -nup);
lua_pushcclosure(L, l->func, nup);
lua_setfield(L, -(nup+2), l->name);
}
lua_pop(L, nup); /* remove upvalues */
}
/*
** {======================================================
** getn-setn: size for arrays
** =======================================================
*/
#if defined(LUA_COMPAT_GETN)
static int checkint (lua_State *L, int topop) {
int n = (lua_type(L, -1) == LUA_TNUMBER) ? lua_tointeger(L, -1) : -1;
lua_pop(L, topop);
return n;
}
static void getsizes (lua_State *L) {
lua_getfield(L, LUA_REGISTRYINDEX, "LUA_SIZES");
if (lua_isnil(L, -1)) { /* no `size' table? */
lua_pop(L, 1); /* remove nil */
lua_newtable(L); /* create it */
lua_pushvalue(L, -1); /* `size' will be its own metatable */
lua_setmetatable(L, -2);
lua_pushliteral(L, "kv");
lua_setfield(L, -2, "__mode"); /* metatable(N).__mode = "kv" */
lua_pushvalue(L, -1);
lua_setfield(L, LUA_REGISTRYINDEX, "LUA_SIZES"); /* store in register */
}
}
LUALIB_API void luaL_setn (lua_State *L, int t, int n) {
t = abs_index(L, t);
lua_pushliteral(L, "n");
lua_rawget(L, t);
if (checkint(L, 1) >= 0) { /* is there a numeric field `n'? */
lua_pushliteral(L, "n"); /* use it */
lua_pushinteger(L, n);
lua_rawset(L, t);
}
else { /* use `sizes' */
getsizes(L);
lua_pushvalue(L, t);
lua_pushinteger(L, n);
lua_rawset(L, -3); /* sizes[t] = n */
lua_pop(L, 1); /* remove `sizes' */
}
}
LUALIB_API int luaL_getn (lua_State *L, int t) {
int n;
t = abs_index(L, t);
lua_pushliteral(L, "n"); /* try t.n */
lua_rawget(L, t);
if ((n = checkint(L, 1)) >= 0) return n;
getsizes(L); /* else try sizes[t] */
lua_pushvalue(L, t);
lua_rawget(L, -2);
if ((n = checkint(L, 2)) >= 0) return n;
return (int)lua_objlen(L, t);
}
#endif
/* }====================================================== */
LUALIB_API const char *luaL_gsub (lua_State *L, const char *s, const char *p,
const char *r) {
const char *wild;
size_t l = strlen(p);
luaL_Buffer b;
luaL_buffinit(L, &b);
while ((wild = strstr(s, p)) != NULL) {
luaL_addlstring(&b, s, wild - s); /* push prefix */
luaL_addstring(&b, r); /* push replacement in place of pattern */
s = wild + l; /* continue after `p' */
}
luaL_addstring(&b, s); /* push last suffix */
luaL_pushresult(&b);
return lua_tostring(L, -1);
}
LUALIB_API const char *luaL_findtable (lua_State *L, int idx,
const char *fname, int szhint) {
const char *e;
lua_pushvalue(L, idx);
do {
e = strchr(fname, '.');
if (e == NULL) e = fname + strlen(fname);
lua_pushlstring(L, fname, e - fname);
lua_rawget(L, -2);
if (lua_isnil(L, -1)) { /* no such field? */
lua_pop(L, 1); /* remove this nil */
lua_createtable(L, 0, (*e == '.' ? 1 : szhint)); /* new table for field */
lua_pushlstring(L, fname, e - fname);
lua_pushvalue(L, -2);
lua_settable(L, -4); /* set new table into field */
}
else if (!lua_istable(L, -1)) { /* field has a non-table value? */
lua_pop(L, 2); /* remove table and value */
return fname; /* return problematic part of the name */
}
lua_remove(L, -2); /* remove previous table */
fname = e + 1;
} while (*e == '.');
return NULL;
}
/*
** {======================================================
** Generic Buffer manipulation
** =======================================================
*/
#define bufflen(B) ((B)->p - (B)->buffer)
#define bufffree(B) ((size_t)(LUAL_BUFFERSIZE - bufflen(B)))
#define LIMIT (LUA_MINSTACK/2)
static int emptybuffer (luaL_Buffer *B) {
size_t l = bufflen(B);
if (l == 0) return 0; /* put nothing on stack */
else {
lua_pushlstring(B->L, B->buffer, l);
B->p = B->buffer;
B->lvl++;
return 1;
}
}
static void adjuststack (luaL_Buffer *B) {
if (B->lvl > 1) {
lua_State *L = B->L;
int toget = 1; /* number of levels to concat */
size_t toplen = lua_strlen(L, -1);
do {
size_t l = lua_strlen(L, -(toget+1));
if (B->lvl - toget + 1 >= LIMIT || toplen > l) {
toplen += l;
toget++;
}
else break;
} while (toget < B->lvl);
lua_concat(L, toget);
B->lvl = B->lvl - toget + 1;
}
}
LUALIB_API char *luaL_prepbuffer (luaL_Buffer *B) {
if (emptybuffer(B))
adjuststack(B);
return B->buffer;
}
LUALIB_API void luaL_addlstring (luaL_Buffer *B, const char *s, size_t l) {
while (l--)
luaL_addchar(B, *s++);
}
LUALIB_API void luaL_addstring (luaL_Buffer *B, const char *s) {
luaL_addlstring(B, s, strlen(s));
}
LUALIB_API void luaL_pushresult (luaL_Buffer *B) {
emptybuffer(B);
lua_concat(B->L, B->lvl);
B->lvl = 1;
}
LUALIB_API void luaL_addvalue (luaL_Buffer *B) {
lua_State *L = B->L;
size_t vl;
const char *s = lua_tolstring(L, -1, &vl);
if (vl <= bufffree(B)) { /* fit into buffer? */
memcpy(B->p, s, vl); /* put it there */
B->p += vl;
lua_pop(L, 1); /* remove from stack */
}
else {
if (emptybuffer(B))
lua_insert(L, -2); /* put buffer before new value */
B->lvl++; /* add new value into B stack */
adjuststack(B);
}
}
LUALIB_API void luaL_buffinit (lua_State *L, luaL_Buffer *B) {
B->L = L;
B->p = B->buffer;
B->lvl = 0;
}
/* }====================================================== */
LUALIB_API int luaL_ref (lua_State *L, int t) {
int ref;
t = abs_index(L, t);
if (lua_isnil(L, -1)) {
lua_pop(L, 1); /* remove from stack */
return LUA_REFNIL; /* `nil' has a unique fixed reference */
}
lua_rawgeti(L, t, FREELIST_REF); /* get first free element */
ref = (int)lua_tointeger(L, -1); /* ref = t[FREELIST_REF] */
lua_pop(L, 1); /* remove it from stack */
if (ref != 0) { /* any free element? */
lua_rawgeti(L, t, ref); /* remove it from list */
lua_rawseti(L, t, FREELIST_REF); /* (t[FREELIST_REF] = t[ref]) */
}
else { /* no free elements */
ref = (int)lua_objlen(L, t);
ref++; /* create new reference */
}
lua_rawseti(L, t, ref);
return ref;
}
LUALIB_API void luaL_unref (lua_State *L, int t, int ref) {
if (ref >= 0) {
t = abs_index(L, t);
lua_rawgeti(L, t, FREELIST_REF);
lua_rawseti(L, t, ref); /* t[ref] = t[FREELIST_REF] */
lua_pushinteger(L, ref);
lua_rawseti(L, t, FREELIST_REF); /* t[FREELIST_REF] = ref */
}
}
/*
** {======================================================
** Load functions
** =======================================================
*/
typedef struct LoadF {
int extraline;
FILE *f;
char buff[LUAL_BUFFERSIZE];
} LoadF;
static const char *getF (lua_State *L, void *ud, size_t *size) {
LoadF *lf = (LoadF *)ud;
(void)L;
if (lf->extraline) {
lf->extraline = 0;
*size = 1;
return "\n";
}
if (feof(lf->f)) return NULL;
*size = fread(lf->buff, 1, sizeof(lf->buff), lf->f);
return (*size > 0) ? lf->buff : NULL;
}
static int errfile (lua_State *L, const char *what, int fnameindex) {
const char *serr = strerror(errno);
const char *filename = lua_tostring(L, fnameindex) + 1;
lua_pushfstring(L, "cannot %s %s: %s", what, filename, serr);
lua_remove(L, fnameindex);
return LUA_ERRFILE;
}
LUALIB_API int luaL_loadfile (lua_State *L, const char *filename) {
LoadF lf;
int status, readstatus;
int c;
int fnameindex = lua_gettop(L) + 1; /* index of filename on the stack */
lf.extraline = 0;
if (filename == NULL) {
lua_pushliteral(L, "=stdin");
lf.f = stdin;
}
else {
lua_pushfstring(L, "@%s", filename);
lf.f = fopen(filename, "r");
if (lf.f == NULL) return errfile(L, "open", fnameindex);
}
c = getc(lf.f);
if (c == '#') { /* Unix exec. file? */
lf.extraline = 1;
while ((c = getc(lf.f)) != EOF && c != '\n') ; /* skip first line */
if (c == '\n') c = getc(lf.f);
}
if (c == LUA_SIGNATURE[0] && filename) { /* binary file? */
lf.f = freopen(filename, "rb", lf.f); /* reopen in binary mode */
if (lf.f == NULL) return errfile(L, "reopen", fnameindex);
/* skip eventual `#!...' */
while ((c = getc(lf.f)) != EOF && c != LUA_SIGNATURE[0]) ;
lf.extraline = 0;
}
ungetc(c, lf.f);
status = lua_load(L, getF, &lf, lua_tostring(L, -1));
readstatus = ferror(lf.f);
if (filename) fclose(lf.f); /* close file (even in case of errors) */
if (readstatus) {
lua_settop(L, fnameindex); /* ignore results from `lua_load' */
return errfile(L, "read", fnameindex);
}
lua_remove(L, fnameindex);
return status;
}
typedef struct LoadS {
const char *s;
size_t size;
} LoadS;
static const char *getS (lua_State *L, void *ud, size_t *size) {
LoadS *ls = (LoadS *)ud;
(void)L;
if (ls->size == 0) return NULL;
*size = ls->size;
ls->size = 0;
return ls->s;
}
LUALIB_API int luaL_loadbuffer (lua_State *L, const char *buff, size_t size,
const char *name) {
LoadS ls;
ls.s = buff;
ls.size = size;
return lua_load(L, getS, &ls, name);
}
LUALIB_API int (luaL_loadstring) (lua_State *L, const char *s) {
return luaL_loadbuffer(L, s, strlen(s), s);
}
/* }====================================================== */
static void *l_alloc (void *ud, void *ptr, size_t osize, size_t nsize) {
(void)ud;
(void)osize;
if (nsize == 0) {
free(ptr);
return NULL;
}
else
return realloc(ptr, nsize);
}
static int panic (lua_State *L) {
(void)L; /* to avoid warnings */
fprintf(stderr, "PANIC: unprotected error in call to Lua API (%s)\n",
lua_tostring(L, -1));
return 0;
}
LUALIB_API lua_State *luaL_newstate (void) {
lua_State *L = lua_newstate(l_alloc, NULL);
if (L) lua_atpanic(L, &panic);
return L;
}

653
desmume/src/windows/lua/lua-5.1.4/src/lbaselib.c
View File

@ -1,653 +0,0 @@
/*
** $Id: lbaselib.c,v 1.191.1.6 2008/02/14 16:46:22 roberto Exp $
** Basic library
** See Copyright Notice in lua.h
*/
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define lbaselib_c
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
/*
** If your system does not support `stdout', you can just remove this function.
** If you need, you can define your own `print' function, following this
** model but changing `fputs' to put the strings at a proper place
** (a console window or a log file, for instance).
*/
static int luaB_print (lua_State *L) {
int n = lua_gettop(L); /* number of arguments */
int i;
lua_getglobal(L, "tostring");
for (i=1; i<=n; i++) {
const char *s;
lua_pushvalue(L, -1); /* function to be called */
lua_pushvalue(L, i); /* value to print */
lua_call(L, 1, 1);
s = lua_tostring(L, -1); /* get result */
if (s == NULL)
return luaL_error(L, LUA_QL("tostring") " must return a string to "
LUA_QL("print"));
if (i>1) fputs("\t", stdout);
fputs(s, stdout);
lua_pop(L, 1); /* pop result */
}
fputs("\n", stdout);
return 0;
}
static int luaB_tonumber (lua_State *L) {
int base = luaL_optint(L, 2, 10);
if (base == 10) { /* standard conversion */
luaL_checkany(L, 1);
if (lua_isnumber(L, 1)) {
lua_pushnumber(L, lua_tonumber(L, 1));
return 1;
}
}
else {
const char *s1 = luaL_checkstring(L, 1);
char *s2;
unsigned long n;
luaL_argcheck(L, 2 <= base && base <= 36, 2, "base out of range");
n = strtoul(s1, &s2, base);
if (s1 != s2) { /* at least one valid digit? */
while (isspace((unsigned char)(*s2))) s2++; /* skip trailing spaces */
if (*s2 == '\0') { /* no invalid trailing characters? */
lua_pushnumber(L, (lua_Number)n);
return 1;
}
}
}
lua_pushnil(L); /* else not a number */
return 1;
}
static int luaB_error (lua_State *L) {
int level = luaL_optint(L, 2, 1);
lua_settop(L, 1);
if (lua_isstring(L, 1) && level > 0) { /* add extra information? */
luaL_where(L, level);
lua_pushvalue(L, 1);
lua_concat(L, 2);
}
return lua_error(L);
}
static int luaB_getmetatable (lua_State *L) {
luaL_checkany(L, 1);
if (!lua_getmetatable(L, 1)) {
lua_pushnil(L);
return 1; /* no metatable */
}
luaL_getmetafield(L, 1, "__metatable");
return 1; /* returns either __metatable field (if present) or metatable */
}
static int luaB_setmetatable (lua_State *L) {
int t = lua_type(L, 2);
luaL_checktype(L, 1, LUA_TTABLE);
luaL_argcheck(L, t == LUA_TNIL || t == LUA_TTABLE, 2,
"nil or table expected");
if (luaL_getmetafield(L, 1, "__metatable"))
luaL_error(L, "cannot change a protected metatable");
lua_settop(L, 2);
lua_setmetatable(L, 1);
return 1;
}
static void getfunc (lua_State *L, int opt) {
if (lua_isfunction(L, 1)) lua_pushvalue(L, 1);
else {
lua_Debug ar;
int level = opt ? luaL_optint(L, 1, 1) : luaL_checkint(L, 1);
luaL_argcheck(L, level >= 0, 1, "level must be non-negative");
if (lua_getstack(L, level, &ar) == 0)
luaL_argerror(L, 1, "invalid level");
lua_getinfo(L, "f", &ar);
if (lua_isnil(L, -1))
luaL_error(L, "no function environment for tail call at level %d",
level);
}
}
static int luaB_getfenv (lua_State *L) {
getfunc(L, 1);
if (lua_iscfunction(L, -1)) /* is a C function? */
lua_pushvalue(L, LUA_GLOBALSINDEX); /* return the thread's global env. */
else
lua_getfenv(L, -1);
return 1;
}
static int luaB_setfenv (lua_State *L) {
luaL_checktype(L, 2, LUA_TTABLE);
getfunc(L, 0);
lua_pushvalue(L, 2);
if (lua_isnumber(L, 1) && lua_tonumber(L, 1) == 0) {
/* change environment of current thread */
lua_pushthread(L);
lua_insert(L, -2);
lua_setfenv(L, -2);
return 0;
}
else if (lua_iscfunction(L, -2) || lua_setfenv(L, -2) == 0)
luaL_error(L,
LUA_QL("setfenv") " cannot change environment of given object");
return 1;
}
static int luaB_rawequal (lua_State *L) {
luaL_checkany(L, 1);
luaL_checkany(L, 2);
lua_pushboolean(L, lua_rawequal(L, 1, 2));
return 1;
}
static int luaB_rawget (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
luaL_checkany(L, 2);
lua_settop(L, 2);
lua_rawget(L, 1);
return 1;
}
static int luaB_rawset (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
luaL_checkany(L, 2);
luaL_checkany(L, 3);
lua_settop(L, 3);
lua_rawset(L, 1);
return 1;
}
static int luaB_gcinfo (lua_State *L) {
lua_pushinteger(L, lua_getgccount(L));
return 1;
}
static int luaB_collectgarbage (lua_State *L) {
static const char *const opts[] = {"stop", "restart", "collect",
"count", "step", "setpause", "setstepmul", NULL};
static const int optsnum[] = {LUA_GCSTOP, LUA_GCRESTART, LUA_GCCOLLECT,
LUA_GCCOUNT, LUA_GCSTEP, LUA_GCSETPAUSE, LUA_GCSETSTEPMUL};
int o = luaL_checkoption(L, 1, "collect", opts);
int ex = luaL_optint(L, 2, 0);
int res = lua_gc(L, optsnum[o], ex);
switch (optsnum[o]) {
case LUA_GCCOUNT: {
int b = lua_gc(L, LUA_GCCOUNTB, 0);
lua_pushnumber(L, res + ((lua_Number)b/1024));
return 1;
}
case LUA_GCSTEP: {
lua_pushboolean(L, res);
return 1;
}
default: {
lua_pushnumber(L, res);
return 1;
}
}
}
static int luaB_type (lua_State *L) {
luaL_checkany(L, 1);
lua_pushstring(L, luaL_typename(L, 1));
return 1;
}
static int luaB_next (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
lua_settop(L, 2); /* create a 2nd argument if there isn't one */
if (lua_next(L, 1))
return 2;
else {
lua_pushnil(L);
return 1;
}
}
static int luaB_pairs (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
lua_pushvalue(L, lua_upvalueindex(1)); /* return generator, */
lua_pushvalue(L, 1); /* state, */
lua_pushnil(L); /* and initial value */
return 3;
}
static int ipairsaux (lua_State *L) {
int i = luaL_checkint(L, 2);
luaL_checktype(L, 1, LUA_TTABLE);
i++; /* next value */
lua_pushinteger(L, i);
lua_rawgeti(L, 1, i);
return (lua_isnil(L, -1)) ? 0 : 2;
}
static int luaB_ipairs (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
lua_pushvalue(L, lua_upvalueindex(1)); /* return generator, */
lua_pushvalue(L, 1); /* state, */
lua_pushinteger(L, 0); /* and initial value */
return 3;
}
static int load_aux (lua_State *L, int status) {
if (status == 0) /* OK? */
return 1;
else {
lua_pushnil(L);
lua_insert(L, -2); /* put before error message */
return 2; /* return nil plus error message */
}
}
static int luaB_loadstring (lua_State *L) {
size_t l;
const char *s = luaL_checklstring(L, 1, &l);
const char *chunkname = luaL_optstring(L, 2, s);
return load_aux(L, luaL_loadbuffer(L, s, l, chunkname));
}
static int luaB_loadfile (lua_State *L) {
const char *fname = luaL_optstring(L, 1, NULL);
return load_aux(L, luaL_loadfile(L, fname));
}
/*
** Reader for generic `load' function: `lua_load' uses the
** stack for internal stuff, so the reader cannot change the
** stack top. Instead, it keeps its resulting string in a
** reserved slot inside the stack.
*/
static const char *generic_reader (lua_State *L, void *ud, size_t *size) {
(void)ud; /* to avoid warnings */
luaL_checkstack(L, 2, "too many nested functions");
lua_pushvalue(L, 1); /* get function */
lua_call(L, 0, 1); /* call it */
if (lua_isnil(L, -1)) {
*size = 0;
return NULL;
}
else if (lua_isstring(L, -1)) {
lua_replace(L, 3); /* save string in a reserved stack slot */
return lua_tolstring(L, 3, size);
}
else luaL_error(L, "reader function must return a string");
return NULL; /* to avoid warnings */
}
static int luaB_load (lua_State *L) {
int status;
const char *cname = luaL_optstring(L, 2, "=(load)");
luaL_checktype(L, 1, LUA_TFUNCTION);
lua_settop(L, 3); /* function, eventual name, plus one reserved slot */
status = lua_load(L, generic_reader, NULL, cname);
return load_aux(L, status);
}
static int luaB_dofile (lua_State *L) {
const char *fname = luaL_optstring(L, 1, NULL);
int n = lua_gettop(L);
if (luaL_loadfile(L, fname) != 0) lua_error(L);
lua_call(L, 0, LUA_MULTRET);
return lua_gettop(L) - n;
}
static int luaB_assert (lua_State *L) {
luaL_checkany(L, 1);
if (!lua_toboolean(L, 1))
return luaL_error(L, "%s", luaL_optstring(L, 2, "assertion failed!"));
return lua_gettop(L);
}
static int luaB_unpack (lua_State *L) {
int i, e, n;
luaL_checktype(L, 1, LUA_TTABLE);
i = luaL_optint(L, 2, 1);
e = luaL_opt(L, luaL_checkint, 3, luaL_getn(L, 1));
if (i > e) return 0; /* empty range */
n = e - i + 1; /* number of elements */
if (n <= 0 || !lua_checkstack(L, n)) /* n <= 0 means arith. overflow */
return luaL_error(L, "too many results to unpack");
lua_rawgeti(L, 1, i); /* push arg[i] (avoiding overflow problems) */
while (i++ < e) /* push arg[i + 1...e] */
lua_rawgeti(L, 1, i);
return n;
}
static int luaB_select (lua_State *L) {
int n = lua_gettop(L);
if (lua_type(L, 1) == LUA_TSTRING && *lua_tostring(L, 1) == '#') {
lua_pushinteger(L, n-1);
return 1;
}
else {
int i = luaL_checkint(L, 1);
if (i < 0) i = n + i;
else if (i > n) i = n;
luaL_argcheck(L, 1 <= i, 1, "index out of range");
return n - i;
}
}
static int luaB_pcall (lua_State *L) {
int status;
luaL_checkany(L, 1);
status = lua_pcall(L, lua_gettop(L) - 1, LUA_MULTRET, 0);
lua_pushboolean(L, (status == 0));
lua_insert(L, 1);
return lua_gettop(L); /* return status + all results */
}
static int luaB_xpcall (lua_State *L) {
int status;
luaL_checkany(L, 2);
lua_settop(L, 2);
lua_insert(L, 1); /* put error function under function to be called */
status = lua_pcall(L, 0, LUA_MULTRET, 1);
lua_pushboolean(L, (status == 0));
lua_replace(L, 1);
return lua_gettop(L); /* return status + all results */
}
static int luaB_tostring (lua_State *L) {
luaL_checkany(L, 1);
if (luaL_callmeta(L, 1, "__tostring")) /* is there a metafield? */
return 1; /* use its value */
switch (lua_type(L, 1)) {
case LUA_TNUMBER:
lua_pushstring(L, lua_tostring(L, 1));
break;
case LUA_TSTRING:
lua_pushvalue(L, 1);
break;
case LUA_TBOOLEAN:
lua_pushstring(L, (lua_toboolean(L, 1) ? "true" : "false"));
break;
case LUA_TNIL:
lua_pushliteral(L, "nil");
break;
default:
lua_pushfstring(L, "%s: %p", luaL_typename(L, 1), lua_topointer(L, 1));
break;
}
return 1;
}
static int luaB_newproxy (lua_State *L) {
lua_settop(L, 1);
lua_newuserdata(L, 0); /* create proxy */
if (lua_toboolean(L, 1) == 0)
return 1; /* no metatable */
else if (lua_isboolean(L, 1)) {
lua_newtable(L); /* create a new metatable `m' ... */
lua_pushvalue(L, -1); /* ... and mark `m' as a valid metatable */
lua_pushboolean(L, 1);
lua_rawset(L, lua_upvalueindex(1)); /* weaktable[m] = true */
}
else {
int validproxy = 0; /* to check if weaktable[metatable(u)] == true */
if (lua_getmetatable(L, 1)) {
lua_rawget(L, lua_upvalueindex(1));
validproxy = lua_toboolean(L, -1);
lua_pop(L, 1); /* remove value */
}
luaL_argcheck(L, validproxy, 1, "boolean or proxy expected");
lua_getmetatable(L, 1); /* metatable is valid; get it */
}
lua_setmetatable(L, 2);
return 1;
}
static const luaL_Reg base_funcs[] = {
{"assert", luaB_assert},
{"collectgarbage", luaB_collectgarbage},
{"dofile", luaB_dofile},
{"error", luaB_error},
{"gcinfo", luaB_gcinfo},
{"getfenv", luaB_getfenv},
{"getmetatable", luaB_getmetatable},
{"loadfile", luaB_loadfile},
{"load", luaB_load},
{"loadstring", luaB_loadstring},
{"next", luaB_next},
{"pcall", luaB_pcall},
{"print", luaB_print},
{"rawequal", luaB_rawequal},
{"rawget", luaB_rawget},
{"rawset", luaB_rawset},
{"select", luaB_select},
{"setfenv", luaB_setfenv},
{"setmetatable", luaB_setmetatable},
{"tonumber", luaB_tonumber},
{"tostring", luaB_tostring},
{"type", luaB_type},
{"unpack", luaB_unpack},
{"xpcall", luaB_xpcall},
{NULL, NULL}
};
/*
** {======================================================
** Coroutine library
** =======================================================
*/
#define CO_RUN 0 /* running */
#define CO_SUS 1 /* suspended */
#define CO_NOR 2 /* 'normal' (it resumed another coroutine) */
#define CO_DEAD 3
static const char *const statnames[] =
{"running", "suspended", "normal", "dead"};
static int costatus (lua_State *L, lua_State *co) {
if (L == co) return CO_RUN;
switch (lua_status(co)) {
case LUA_YIELD:
return CO_SUS;
case 0: {
lua_Debug ar;
if (lua_getstack(co, 0, &ar) > 0) /* does it have frames? */
return CO_NOR; /* it is running */
else if (lua_gettop(co) == 0)
return CO_DEAD;
else
return CO_SUS; /* initial state */
}
default: /* some error occured */
return CO_DEAD;
}
}
static int luaB_costatus (lua_State *L) {
lua_State *co = lua_tothread(L, 1);
luaL_argcheck(L, co, 1, "coroutine expected");
lua_pushstring(L, statnames[costatus(L, co)]);
return 1;
}
static int auxresume (lua_State *L, lua_State *co, int narg) {
int status = costatus(L, co);
if (!lua_checkstack(co, narg))
luaL_error(L, "too many arguments to resume");
if (status != CO_SUS) {
lua_pushfstring(L, "cannot resume %s coroutine", statnames[status]);
return -1; /* error flag */
}
lua_xmove(L, co, narg);
lua_setlevel(L, co);
status = lua_resume(co, narg);
if (status == 0 || status == LUA_YIELD) {
int nres = lua_gettop(co);
if (!lua_checkstack(L, nres + 1))
luaL_error(L, "too many results to resume");
lua_xmove(co, L, nres); /* move yielded values */
return nres;
}
else {
lua_xmove(co, L, 1); /* move error message */
return -1; /* error flag */
}
}
static int luaB_coresume (lua_State *L) {
lua_State *co = lua_tothread(L, 1);
int r;
luaL_argcheck(L, co, 1, "coroutine expected");
r = auxresume(L, co, lua_gettop(L) - 1);
if (r < 0) {
lua_pushboolean(L, 0);
lua_insert(L, -2);
return 2; /* return false + error message */
}
else {
lua_pushboolean(L, 1);
lua_insert(L, -(r + 1));
return r + 1; /* return true + `resume' returns */
}
}
static int luaB_auxwrap (lua_State *L) {
lua_State *co = lua_tothread(L, lua_upvalueindex(1));
int r = auxresume(L, co, lua_gettop(L));
if (r < 0) {
if (lua_isstring(L, -1)) { /* error object is a string? */
luaL_where(L, 1); /* add extra info */
lua_insert(L, -2);
lua_concat(L, 2);
}
lua_error(L); /* propagate error */
}
return r;
}
static int luaB_cocreate (lua_State *L) {
lua_State *NL = lua_newthread(L);
luaL_argcheck(L, lua_isfunction(L, 1) && !lua_iscfunction(L, 1), 1,
"Lua function expected");
lua_pushvalue(L, 1); /* move function to top */
lua_xmove(L, NL, 1); /* move function from L to NL */
return 1;
}
static int luaB_cowrap (lua_State *L) {
luaB_cocreate(L);
lua_pushcclosure(L, luaB_auxwrap, 1);
return 1;
}
static int luaB_yield (lua_State *L) {
return lua_yield(L, lua_gettop(L));
}
static int luaB_corunning (lua_State *L) {
if (lua_pushthread(L))
lua_pushnil(L); /* main thread is not a coroutine */
return 1;
}
static const luaL_Reg co_funcs[] = {
{"create", luaB_cocreate},
{"resume", luaB_coresume},
{"running", luaB_corunning},
{"status", luaB_costatus},
{"wrap", luaB_cowrap},
{"yield", luaB_yield},
{NULL, NULL}
};
/* }====================================================== */
static void auxopen (lua_State *L, const char *name,
lua_CFunction f, lua_CFunction u) {
lua_pushcfunction(L, u);
lua_pushcclosure(L, f, 1);
lua_setfield(L, -2, name);
}
static void base_open (lua_State *L) {
/* set global _G */
lua_pushvalue(L, LUA_GLOBALSINDEX);
lua_setglobal(L, "_G");
/* open lib into global table */
luaL_register(L, "_G", base_funcs);
lua_pushliteral(L, LUA_VERSION);
lua_setglobal(L, "_VERSION"); /* set global _VERSION */
/* `ipairs' and `pairs' need auxliliary functions as upvalues */
auxopen(L, "ipairs", luaB_ipairs, ipairsaux);
auxopen(L, "pairs", luaB_pairs, luaB_next);
/* `newproxy' needs a weaktable as upvalue */
lua_createtable(L, 0, 1); /* new table `w' */
lua_pushvalue(L, -1); /* `w' will be its own metatable */
lua_setmetatable(L, -2);
lua_pushliteral(L, "kv");
lua_setfield(L, -2, "__mode"); /* metatable(w).__mode = "kv" */
lua_pushcclosure(L, luaB_newproxy, 1);
lua_setglobal(L, "newproxy"); /* set global `newproxy' */
}
LUALIB_API int luaopen_base (lua_State *L) {
base_open(L);
luaL_register(L, LUA_COLIBNAME, co_funcs);
return 2;
}

839
desmume/src/windows/lua/lua-5.1.4/src/lcode.c
View File

@ -1,839 +0,0 @@
/*
** $Id: lcode.c,v 2.25.1.3 2007/12/28 15:32:23 roberto Exp $
** Code generator for Lua
** See Copyright Notice in lua.h
*/
#include <stdlib.h>
#define lcode_c
#define LUA_CORE
#include "lua.h"
#include "lcode.h"
#include "ldebug.h"
#include "ldo.h"
#include "lgc.h"
#include "llex.h"
#include "lmem.h"
#include "lobject.h"
#include "lopcodes.h"
#include "lparser.h"
#include "ltable.h"
#define hasjumps(e) ((e)->t != (e)->f)
static int isnumeral(expdesc *e) {
return (e->k == VKNUM && e->t == NO_JUMP && e->f == NO_JUMP);
}
void luaK_nil (FuncState *fs, int from, int n) {
Instruction *previous;
if (fs->pc > fs->lasttarget) { /* no jumps to current position? */
if (fs->pc == 0) { /* function start? */
if (from >= fs->nactvar)
return; /* positions are already clean */
}
else {
previous = &fs->f->code[fs->pc-1];
if (GET_OPCODE(*previous) == OP_LOADNIL) {
int pfrom = GETARG_A(*previous);
int pto = GETARG_B(*previous);
if (pfrom <= from && from <= pto+1) { /* can connect both? */
if (from+n-1 > pto)
SETARG_B(*previous, from+n-1);
return;
}
}
}
}
luaK_codeABC(fs, OP_LOADNIL, from, from+n-1, 0); /* else no optimization */
}
int luaK_jump (FuncState *fs) {
int jpc = fs->jpc; /* save list of jumps to here */
int j;
fs->jpc = NO_JUMP;
j = luaK_codeAsBx(fs, OP_JMP, 0, NO_JUMP);
luaK_concat(fs, &j, jpc); /* keep them on hold */
return j;
}
void luaK_ret (FuncState *fs, int first, int nret) {
luaK_codeABC(fs, OP_RETURN, first, nret+1, 0);
}
static int condjump (FuncState *fs, OpCode op, int A, int B, int C) {
luaK_codeABC(fs, op, A, B, C);
return luaK_jump(fs);
}
static void fixjump (FuncState *fs, int pc, int dest) {
Instruction *jmp = &fs->f->code[pc];
int offset = dest-(pc+1);
lua_assert(dest != NO_JUMP);
if (abs(offset) > MAXARG_sBx)
luaX_syntaxerror(fs->ls, "control structure too long");
SETARG_sBx(*jmp, offset);
}
/*
** returns current `pc' and marks it as a jump target (to avoid wrong
** optimizations with consecutive instructions not in the same basic block).
*/
int luaK_getlabel (FuncState *fs) {
fs->lasttarget = fs->pc;
return fs->pc;
}
static int getjump (FuncState *fs, int pc) {
int offset = GETARG_sBx(fs->f->code[pc]);
if (offset == NO_JUMP) /* point to itself represents end of list */
return NO_JUMP; /* end of list */
else
return (pc+1)+offset; /* turn offset into absolute position */
}
static Instruction *getjumpcontrol (FuncState *fs, int pc) {
Instruction *pi = &fs->f->code[pc];
if (pc >= 1 && testTMode(GET_OPCODE(*(pi-1))))
return pi-1;
else
return pi;
}
/*
** check whether list has any jump that do not produce a value
** (or produce an inverted value)
*/
static int need_value (FuncState *fs, int list) {
for (; list != NO_JUMP; list = getjump(fs, list)) {
Instruction i = *getjumpcontrol(fs, list);
if (GET_OPCODE(i) != OP_TESTSET) return 1;
}
return 0; /* not found */
}
static int patchtestreg (FuncState *fs, int node, int reg) {
Instruction *i = getjumpcontrol(fs, node);
if (GET_OPCODE(*i) != OP_TESTSET)
return 0; /* cannot patch other instructions */
if (reg != NO_REG && reg != GETARG_B(*i))
SETARG_A(*i, reg);
else /* no register to put value or register already has the value */
*i = CREATE_ABC(OP_TEST, GETARG_B(*i), 0, GETARG_C(*i));
return 1;
}
static void removevalues (FuncState *fs, int list) {
for (; list != NO_JUMP; list = getjump(fs, list))
patchtestreg(fs, list, NO_REG);
}
static void patchlistaux (FuncState *fs, int list, int vtarget, int reg,
int dtarget) {
while (list != NO_JUMP) {
int next = getjump(fs, list);
if (patchtestreg(fs, list, reg))
fixjump(fs, list, vtarget);
else
fixjump(fs, list, dtarget); /* jump to default target */
list = next;
}
}
static void dischargejpc (FuncState *fs) {
patchlistaux(fs, fs->jpc, fs->pc, NO_REG, fs->pc);
fs->jpc = NO_JUMP;
}
void luaK_patchlist (FuncState *fs, int list, int target) {
if (target == fs->pc)
luaK_patchtohere(fs, list);
else {
lua_assert(target < fs->pc);
patchlistaux(fs, list, target, NO_REG, target);
}
}
void luaK_patchtohere (FuncState *fs, int list) {
luaK_getlabel(fs);
luaK_concat(fs, &fs->jpc, list);
}
void luaK_concat (FuncState *fs, int *l1, int l2) {
if (l2 == NO_JUMP) return;
else if (*l1 == NO_JUMP)
*l1 = l2;
else {
int list = *l1;
int next;
while ((next = getjump(fs, list)) != NO_JUMP) /* find last element */
list = next;
fixjump(fs, list, l2);
}
}
void luaK_checkstack (FuncState *fs, int n) {
int newstack = fs->freereg + n;
if (newstack > fs->f->maxstacksize) {
if (newstack >= MAXSTACK)
luaX_syntaxerror(fs->ls, "function or expression too complex");
fs->f->maxstacksize = cast_byte(newstack);
}
}
void luaK_reserveregs (FuncState *fs, int n) {
luaK_checkstack(fs, n);
fs->freereg += n;
}
static void freereg (FuncState *fs, int reg) {
if (!ISK(reg) && reg >= fs->nactvar) {
fs->freereg--;
lua_assert(reg == fs->freereg);
}
}
static void freeexp (FuncState *fs, expdesc *e) {
if (e->k == VNONRELOC)
freereg(fs, e->u.s.info);
}
static int addk (FuncState *fs, TValue *k, TValue *v) {
lua_State *L = fs->L;
TValue *idx = luaH_set(L, fs->h, k);
Proto *f = fs->f;
int oldsize = f->sizek;
if (ttisnumber(idx)) {
lua_assert(luaO_rawequalObj(&fs->f->k[cast_int(nvalue(idx))], v));
return cast_int(nvalue(idx));
}
else { /* constant not found; create a new entry */
setnvalue(idx, cast_num(fs->nk));
luaM_growvector(L, f->k, fs->nk, f->sizek, TValue,
MAXARG_Bx, "constant table overflow");
while (oldsize < f->sizek) setnilvalue(&f->k[oldsize++]);
setobj(L, &f->k[fs->nk], v);
luaC_barrier(L, f, v);
return fs->nk++;
}
}
int luaK_stringK (FuncState *fs, TString *s) {
TValue o;
setsvalue(fs->L, &o, s);
return addk(fs, &o, &o);
}
int luaK_numberK (FuncState *fs, lua_Number r) {
TValue o;
setnvalue(&o, r);
return addk(fs, &o, &o);
}
static int boolK (FuncState *fs, int b) {
TValue o;
setbvalue(&o, b);
return addk(fs, &o, &o);
}
static int nilK (FuncState *fs) {
TValue k, v;
setnilvalue(&v);
/* cannot use nil as key; instead use table itself to represent nil */
sethvalue(fs->L, &k, fs->h);
return addk(fs, &k, &v);
}
void luaK_setreturns (FuncState *fs, expdesc *e, int nresults) {
if (e->k == VCALL) { /* expression is an open function call? */
SETARG_C(getcode(fs, e), nresults+1);
}
else if (e->k == VVARARG) {
SETARG_B(getcode(fs, e), nresults+1);
SETARG_A(getcode(fs, e), fs->freereg);
luaK_reserveregs(fs, 1);
}
}
void luaK_setoneret (FuncState *fs, expdesc *e) {
if (e->k == VCALL) { /* expression is an open function call? */
e->k = VNONRELOC;
e->u.s.info = GETARG_A(getcode(fs, e));
}
else if (e->k == VVARARG) {
SETARG_B(getcode(fs, e), 2);
e->k = VRELOCABLE; /* can relocate its simple result */
}
}
void luaK_dischargevars (FuncState *fs, expdesc *e) {
switch (e->k) {
case VLOCAL: {
e->k = VNONRELOC;
break;
}
case VUPVAL: {
e->u.s.info = luaK_codeABC(fs, OP_GETUPVAL, 0, e->u.s.info, 0);
e->k = VRELOCABLE;
break;
}
case VGLOBAL: {
e->u.s.info = luaK_codeABx(fs, OP_GETGLOBAL, 0, e->u.s.info);
e->k = VRELOCABLE;
break;
}
case VINDEXED: {
freereg(fs, e->u.s.aux);
freereg(fs, e->u.s.info);
e->u.s.info = luaK_codeABC(fs, OP_GETTABLE, 0, e->u.s.info, e->u.s.aux);
e->k = VRELOCABLE;
break;
}
case VVARARG:
case VCALL: {
luaK_setoneret(fs, e);
break;
}
default: break; /* there is one value available (somewhere) */
}
}
static int code_label (FuncState *fs, int A, int b, int jump) {
luaK_getlabel(fs); /* those instructions may be jump targets */
return luaK_codeABC(fs, OP_LOADBOOL, A, b, jump);
}
static void discharge2reg (FuncState *fs, expdesc *e, int reg) {
luaK_dischargevars(fs, e);
switch (e->k) {
case VNIL: {
luaK_nil(fs, reg, 1);
break;
}
case VFALSE: case VTRUE: {
luaK_codeABC(fs, OP_LOADBOOL, reg, e->k == VTRUE, 0);
break;
}
case VK: {
luaK_codeABx(fs, OP_LOADK, reg, e->u.s.info);
break;
}
case VKNUM: {
luaK_codeABx(fs, OP_LOADK, reg, luaK_numberK(fs, e->u.nval));
break;
}
case VRELOCABLE: {
Instruction *pc = &getcode(fs, e);
SETARG_A(*pc, reg);
break;
}
case VNONRELOC: {
if (reg != e->u.s.info)
luaK_codeABC(fs, OP_MOVE, reg, e->u.s.info, 0);
break;
}
default: {
lua_assert(e->k == VVOID || e->k == VJMP);
return; /* nothing to do... */
}
}
e->u.s.info = reg;
e->k = VNONRELOC;
}
static void discharge2anyreg (FuncState *fs, expdesc *e) {
if (e->k != VNONRELOC) {
luaK_reserveregs(fs, 1);
discharge2reg(fs, e, fs->freereg-1);
}
}
static void exp2reg (FuncState *fs, expdesc *e, int reg) {
discharge2reg(fs, e, reg);
if (e->k == VJMP)
luaK_concat(fs, &e->t, e->u.s.info); /* put this jump in `t' list */
if (hasjumps(e)) {
int final; /* position after whole expression */
int p_f = NO_JUMP; /* position of an eventual LOAD false */
int p_t = NO_JUMP; /* position of an eventual LOAD true */
if (need_value(fs, e->t) || need_value(fs, e->f)) {
int fj = (e->k == VJMP) ? NO_JUMP : luaK_jump(fs);
p_f = code_label(fs, reg, 0, 1);
p_t = code_label(fs, reg, 1, 0);
luaK_patchtohere(fs, fj);
}
final = luaK_getlabel(fs);
patchlistaux(fs, e->f, final, reg, p_f);
patchlistaux(fs, e->t, final, reg, p_t);
}
e->f = e->t = NO_JUMP;
e->u.s.info = reg;
e->k = VNONRELOC;
}
void luaK_exp2nextreg (FuncState *fs, expdesc *e) {
luaK_dischargevars(fs, e);
freeexp(fs, e);
luaK_reserveregs(fs, 1);
exp2reg(fs, e, fs->freereg - 1);
}
int luaK_exp2anyreg (FuncState *fs, expdesc *e) {
luaK_dischargevars(fs, e);
if (e->k == VNONRELOC) {
if (!hasjumps(e)) return e->u.s.info; /* exp is already in a register */
if (e->u.s.info >= fs->nactvar) { /* reg. is not a local? */
exp2reg(fs, e, e->u.s.info); /* put value on it */
return e->u.s.info;
}
}
luaK_exp2nextreg(fs, e); /* default */
return e->u.s.info;
}
void luaK_exp2val (FuncState *fs, expdesc *e) {
if (hasjumps(e))
luaK_exp2anyreg(fs, e);
else
luaK_dischargevars(fs, e);
}
int luaK_exp2RK (FuncState *fs, expdesc *e) {
luaK_exp2val(fs, e);
switch (e->k) {
case VKNUM:
case VTRUE:
case VFALSE:
case VNIL: {
if (fs->nk <= MAXINDEXRK) { /* constant fit in RK operand? */
e->u.s.info = (e->k == VNIL) ? nilK(fs) :
(e->k == VKNUM) ? luaK_numberK(fs, e->u.nval) :
boolK(fs, (e->k == VTRUE));
e->k = VK;
return RKASK(e->u.s.info);
}
else break;
}
case VK: {
if (e->u.s.info <= MAXINDEXRK) /* constant fit in argC? */
return RKASK(e->u.s.info);
else break;
}
default: break;
}
/* not a constant in the right range: put it in a register */
return luaK_exp2anyreg(fs, e);
}
void luaK_storevar (FuncState *fs, expdesc *var, expdesc *ex) {
switch (var->k) {
case VLOCAL: {
freeexp(fs, ex);
exp2reg(fs, ex, var->u.s.info);
return;
}
case VUPVAL: {
int e = luaK_exp2anyreg(fs, ex);
luaK_codeABC(fs, OP_SETUPVAL, e, var->u.s.info, 0);
break;
}
case VGLOBAL: {
int e = luaK_exp2anyreg(fs, ex);
luaK_codeABx(fs, OP_SETGLOBAL, e, var->u.s.info);
break;
}
case VINDEXED: {
int e = luaK_exp2RK(fs, ex);
luaK_codeABC(fs, OP_SETTABLE, var->u.s.info, var->u.s.aux, e);
break;
}
default: {
lua_assert(0); /* invalid var kind to store */
break;
}
}
freeexp(fs, ex);
}
void luaK_self (FuncState *fs, expdesc *e, expdesc *key) {
int func;
luaK_exp2anyreg(fs, e);
freeexp(fs, e);
func = fs->freereg;
luaK_reserveregs(fs, 2);
luaK_codeABC(fs, OP_SELF, func, e->u.s.info, luaK_exp2RK(fs, key));
freeexp(fs, key);
e->u.s.info = func;
e->k = VNONRELOC;
}
static void invertjump (FuncState *fs, expdesc *e) {
Instruction *pc = getjumpcontrol(fs, e->u.s.info);
lua_assert(testTMode(GET_OPCODE(*pc)) && GET_OPCODE(*pc) != OP_TESTSET &&
GET_OPCODE(*pc) != OP_TEST);
SETARG_A(*pc, !(GETARG_A(*pc)));
}
static int jumponcond (FuncState *fs, expdesc *e, int cond) {
if (e->k == VRELOCABLE) {
Instruction ie = getcode(fs, e);
if (GET_OPCODE(ie) == OP_NOT) {
fs->pc--; /* remove previous OP_NOT */
return condjump(fs, OP_TEST, GETARG_B(ie), 0, !cond);
}
/* else go through */
}
discharge2anyreg(fs, e);
freeexp(fs, e);
return condjump(fs, OP_TESTSET, NO_REG, e->u.s.info, cond);
}
void luaK_goiftrue (FuncState *fs, expdesc *e) {
int pc; /* pc of last jump */
luaK_dischargevars(fs, e);
switch (e->k) {
case VK: case VKNUM: case VTRUE: {
pc = NO_JUMP; /* always true; do nothing */
break;
}
case VFALSE: {
pc = luaK_jump(fs); /* always jump */
break;
}
case VJMP: {
invertjump(fs, e);
pc = e->u.s.info;
break;
}
default: {
pc = jumponcond(fs, e, 0);
break;
}
}
luaK_concat(fs, &e->f, pc); /* insert last jump in `f' list */
luaK_patchtohere(fs, e->t);
e->t = NO_JUMP;
}
static void luaK_goiffalse (FuncState *fs, expdesc *e) {
int pc; /* pc of last jump */
luaK_dischargevars(fs, e);
switch (e->k) {
case VNIL: case VFALSE: {
pc = NO_JUMP; /* always false; do nothing */
break;
}
case VTRUE: {
pc = luaK_jump(fs); /* always jump */
break;
}
case VJMP: {
pc = e->u.s.info;
break;
}
default: {
pc = jumponcond(fs, e, 1);
break;
}
}
luaK_concat(fs, &e->t, pc); /* insert last jump in `t' list */
luaK_patchtohere(fs, e->f);
e->f = NO_JUMP;
}
static void codenot (FuncState *fs, expdesc *e) {
luaK_dischargevars(fs, e);
switch (e->k) {
case VNIL: case VFALSE: {
e->k = VTRUE;
break;
}
case VK: case VKNUM: case VTRUE: {
e->k = VFALSE;
break;
}
case VJMP: {
invertjump(fs, e);
break;
}
case VRELOCABLE:
case VNONRELOC: {
discharge2anyreg(fs, e);
freeexp(fs, e);
e->u.s.info = luaK_codeABC(fs, OP_NOT, 0, e->u.s.info, 0);
e->k = VRELOCABLE;
break;
}
default: {
lua_assert(0); /* cannot happen */
break;
}
}
/* interchange true and false lists */
{ int temp = e->f; e->f = e->t; e->t = temp; }
removevalues(fs, e->f);
removevalues(fs, e->t);
}
void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k) {
t->u.s.aux = luaK_exp2RK(fs, k);
t->k = VINDEXED;
}
static int constfolding (OpCode op, expdesc *e1, expdesc *e2) {
lua_Number v1, v2, r;
if (!isnumeral(e1) || !isnumeral(e2)) return 0;
v1 = e1->u.nval;
v2 = e2->u.nval;
switch (op) {
case OP_ADD: r = luai_numadd(v1, v2); break;
case OP_SUB: r = luai_numsub(v1, v2); break;
case OP_MUL: r = luai_nummul(v1, v2); break;
case OP_DIV:
if (v2 == 0) return 0; /* do not attempt to divide by 0 */
r = luai_numdiv(v1, v2); break;
case OP_MOD:
if (v2 == 0) return 0; /* do not attempt to divide by 0 */
r = luai_nummod(v1, v2); break;
case OP_POW: r = luai_numpow(v1, v2); break;
case OP_UNM: r = luai_numunm(v1); break;
case OP_LEN: return 0; /* no constant folding for 'len' */
default: lua_assert(0); r = 0; break;
}
if (luai_numisnan(r)) return 0; /* do not attempt to produce NaN */
e1->u.nval = r;
return 1;
}
static void codearith (FuncState *fs, OpCode op, expdesc *e1, expdesc *e2) {
if (constfolding(op, e1, e2))
return;
else {
int o2 = (op != OP_UNM && op != OP_LEN) ? luaK_exp2RK(fs, e2) : 0;
int o1 = luaK_exp2RK(fs, e1);
if (o1 > o2) {
freeexp(fs, e1);
freeexp(fs, e2);
}
else {
freeexp(fs, e2);
freeexp(fs, e1);
}
e1->u.s.info = luaK_codeABC(fs, op, 0, o1, o2);
e1->k = VRELOCABLE;
}
}
static void codecomp (FuncState *fs, OpCode op, int cond, expdesc *e1,
expdesc *e2) {
int o1 = luaK_exp2RK(fs, e1);
int o2 = luaK_exp2RK(fs, e2);
freeexp(fs, e2);
freeexp(fs, e1);
if (cond == 0 && op != OP_EQ) {
int temp; /* exchange args to replace by `<' or `<=' */
temp = o1; o1 = o2; o2 = temp; /* o1 <==> o2 */
cond = 1;
}
e1->u.s.info = condjump(fs, op, cond, o1, o2);
e1->k = VJMP;
}
void luaK_prefix (FuncState *fs, UnOpr op, expdesc *e) {
expdesc e2;
e2.t = e2.f = NO_JUMP; e2.k = VKNUM; e2.u.nval = 0;
switch (op) {
case OPR_MINUS: {
if (!isnumeral(e))
luaK_exp2anyreg(fs, e); /* cannot operate on non-numeric constants */
codearith(fs, OP_UNM, e, &e2);
break;
}
case OPR_NOT: codenot(fs, e); break;
case OPR_LEN: {
luaK_exp2anyreg(fs, e); /* cannot operate on constants */
codearith(fs, OP_LEN, e, &e2);
break;
}
default: lua_assert(0);
}
}
void luaK_infix (FuncState *fs, BinOpr op, expdesc *v) {
switch (op) {
case OPR_AND: {
luaK_goiftrue(fs, v);
break;
}
case OPR_OR: {
luaK_goiffalse(fs, v);
break;
}
case OPR_CONCAT: {
luaK_exp2nextreg(fs, v); /* operand must be on the `stack' */
break;
}
case OPR_ADD: case OPR_SUB: case OPR_MUL: case OPR_DIV:
case OPR_MOD: case OPR_POW: {
if (!isnumeral(v)) luaK_exp2RK(fs, v);
break;
}
default: {
luaK_exp2RK(fs, v);
break;
}
}
}
void luaK_posfix (FuncState *fs, BinOpr op, expdesc *e1, expdesc *e2) {
switch (op) {
case OPR_AND: {
lua_assert(e1->t == NO_JUMP); /* list must be closed */
luaK_dischargevars(fs, e2);
luaK_concat(fs, &e2->f, e1->f);
*e1 = *e2;
break;
}
case OPR_OR: {
lua_assert(e1->f == NO_JUMP); /* list must be closed */
luaK_dischargevars(fs, e2);
luaK_concat(fs, &e2->t, e1->t);
*e1 = *e2;
break;
}
case OPR_CONCAT: {
luaK_exp2val(fs, e2);
if (e2->k == VRELOCABLE && GET_OPCODE(getcode(fs, e2)) == OP_CONCAT) {
lua_assert(e1->u.s.info == GETARG_B(getcode(fs, e2))-1);
freeexp(fs, e1);
SETARG_B(getcode(fs, e2), e1->u.s.info);
e1->k = VRELOCABLE; e1->u.s.info = e2->u.s.info;
}
else {
luaK_exp2nextreg(fs, e2); /* operand must be on the 'stack' */
codearith(fs, OP_CONCAT, e1, e2);
}
break;
}
case OPR_ADD: codearith(fs, OP_ADD, e1, e2); break;
case OPR_SUB: codearith(fs, OP_SUB, e1, e2); break;
case OPR_MUL: codearith(fs, OP_MUL, e1, e2); break;
case OPR_DIV: codearith(fs, OP_DIV, e1, e2); break;
case OPR_MOD: codearith(fs, OP_MOD, e1, e2); break;
case OPR_POW: codearith(fs, OP_POW, e1, e2); break;
case OPR_EQ: codecomp(fs, OP_EQ, 1, e1, e2); break;
case OPR_NE: codecomp(fs, OP_EQ, 0, e1, e2); break;
case OPR_LT: codecomp(fs, OP_LT, 1, e1, e2); break;
case OPR_LE: codecomp(fs, OP_LE, 1, e1, e2); break;
case OPR_GT: codecomp(fs, OP_LT, 0, e1, e2); break;
case OPR_GE: codecomp(fs, OP_LE, 0, e1, e2); break;
default: lua_assert(0);
}
}
void luaK_fixline (FuncState *fs, int line) {
fs->f->lineinfo[fs->pc - 1] = line;
}
static int luaK_code (FuncState *fs, Instruction i, int line) {
Proto *f = fs->f;
dischargejpc(fs); /* `pc' will change */
/* put new instruction in code array */
luaM_growvector(fs->L, f->code, fs->pc, f->sizecode, Instruction,
MAX_INT, "code size overflow");
f->code[fs->pc] = i;
/* save corresponding line information */
luaM_growvector(fs->L, f->lineinfo, fs->pc, f->sizelineinfo, int,
MAX_INT, "code size overflow");
f->lineinfo[fs->pc] = line;
return fs->pc++;
}
int luaK_codeABC (FuncState *fs, OpCode o, int a, int b, int c) {
lua_assert(getOpMode(o) == iABC);
lua_assert(getBMode(o) != OpArgN || b == 0);
lua_assert(getCMode(o) != OpArgN || c == 0);
return luaK_code(fs, CREATE_ABC(o, a, b, c), fs->ls->lastline);
}
int luaK_codeABx (FuncState *fs, OpCode o, int a, unsigned int bc) {
lua_assert(getOpMode(o) == iABx || getOpMode(o) == iAsBx);
lua_assert(getCMode(o) == OpArgN);
return luaK_code(fs, CREATE_ABx(o, a, bc), fs->ls->lastline);
}
void luaK_setlist (FuncState *fs, int base, int nelems, int tostore) {
int c = (nelems - 1)/LFIELDS_PER_FLUSH + 1;
int b = (tostore == LUA_MULTRET) ? 0 : tostore;
lua_assert(tostore != 0);
if (c <= MAXARG_C)
luaK_codeABC(fs, OP_SETLIST, base, b, c);
else {
luaK_codeABC(fs, OP_SETLIST, base, b, 0);
luaK_code(fs, cast(Instruction, c), fs->ls->lastline);
}
fs->freereg = base + 1; /* free registers with list values */
}

397
desmume/src/windows/lua/lua-5.1.4/src/ldblib.c
View File

@ -1,397 +0,0 @@
/*
** $Id: ldblib.c,v 1.104.1.3 2008/01/21 13:11:21 roberto Exp $
** Interface from Lua to its debug API
** See Copyright Notice in lua.h
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define ldblib_c
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
static int db_getregistry (lua_State *L) {
lua_pushvalue(L, LUA_REGISTRYINDEX);
return 1;
}
static int db_getmetatable (lua_State *L) {
luaL_checkany(L, 1);
if (!lua_getmetatable(L, 1)) {
lua_pushnil(L); /* no metatable */
}
return 1;
}
static int db_setmetatable (lua_State *L) {
int t = lua_type(L, 2);
luaL_argcheck(L, t == LUA_TNIL || t == LUA_TTABLE, 2,
"nil or table expected");
lua_settop(L, 2);
lua_pushboolean(L, lua_setmetatable(L, 1));
return 1;
}
static int db_getfenv (lua_State *L) {
lua_getfenv(L, 1);
return 1;
}
static int db_setfenv (lua_State *L) {
luaL_checktype(L, 2, LUA_TTABLE);
lua_settop(L, 2);
if (lua_setfenv(L, 1) == 0)
luaL_error(L, LUA_QL("setfenv")
" cannot change environment of given object");
return 1;
}
static void settabss (lua_State *L, const char *i, const char *v) {
lua_pushstring(L, v);
lua_setfield(L, -2, i);
}
static void settabsi (lua_State *L, const char *i, int v) {
lua_pushinteger(L, v);
lua_setfield(L, -2, i);
}
static lua_State *getthread (lua_State *L, int *arg) {
if (lua_isthread(L, 1)) {
*arg = 1;
return lua_tothread(L, 1);
}
else {
*arg = 0;
return L;
}
}
static void treatstackoption (lua_State *L, lua_State *L1, const char *fname) {
if (L == L1) {
lua_pushvalue(L, -2);
lua_remove(L, -3);
}
else
lua_xmove(L1, L, 1);
lua_setfield(L, -2, fname);
}
static int db_getinfo (lua_State *L) {
lua_Debug ar;
int arg;
lua_State *L1 = getthread(L, &arg);
const char *options = luaL_optstring(L, arg+2, "flnSu");
if (lua_isnumber(L, arg+1)) {
if (!lua_getstack(L1, (int)lua_tointeger(L, arg+1), &ar)) {
lua_pushnil(L); /* level out of range */
return 1;
}
}
else if (lua_isfunction(L, arg+1)) {
lua_pushfstring(L, ">%s", options);
options = lua_tostring(L, -1);
lua_pushvalue(L, arg+1);
lua_xmove(L, L1, 1);
}
else
return luaL_argerror(L, arg+1, "function or level expected");
if (!lua_getinfo(L1, options, &ar))
return luaL_argerror(L, arg+2, "invalid option");
lua_createtable(L, 0, 2);
if (strchr(options, 'S')) {
settabss(L, "source", ar.source);
settabss(L, "short_src", ar.short_src);
settabsi(L, "linedefined", ar.linedefined);
settabsi(L, "lastlinedefined", ar.lastlinedefined);
settabss(L, "what", ar.what);
}
if (strchr(options, 'l'))
settabsi(L, "currentline", ar.currentline);
if (strchr(options, 'u'))
settabsi(L, "nups", ar.nups);
if (strchr(options, 'n')) {
settabss(L, "name", ar.name);
settabss(L, "namewhat", ar.namewhat);
}
if (strchr(options, 'L'))
treatstackoption(L, L1, "activelines");
if (strchr(options, 'f'))
treatstackoption(L, L1, "func");
return 1; /* return table */
}
static int db_getlocal (lua_State *L) {
int arg;
lua_State *L1 = getthread(L, &arg);
lua_Debug ar;
const char *name;
if (!lua_getstack(L1, luaL_checkint(L, arg+1), &ar)) /* out of range? */
return luaL_argerror(L, arg+1, "level out of range");
name = lua_getlocal(L1, &ar, luaL_checkint(L, arg+2));
if (name) {
lua_xmove(L1, L, 1);
lua_pushstring(L, name);
lua_pushvalue(L, -2);
return 2;
}
else {
lua_pushnil(L);
return 1;
}
}
static int db_setlocal (lua_State *L) {
int arg;
lua_State *L1 = getthread(L, &arg);
lua_Debug ar;
if (!lua_getstack(L1, luaL_checkint(L, arg+1), &ar)) /* out of range? */
return luaL_argerror(L, arg+1, "level out of range");
luaL_checkany(L, arg+3);
lua_settop(L, arg+3);
lua_xmove(L, L1, 1);
lua_pushstring(L, lua_setlocal(L1, &ar, luaL_checkint(L, arg+2)));
return 1;
}
static int auxupvalue (lua_State *L, int get) {
const char *name;
int n = luaL_checkint(L, 2);
luaL_checktype(L, 1, LUA_TFUNCTION);
if (lua_iscfunction(L, 1)) return 0; /* cannot touch C upvalues from Lua */
name = get ? lua_getupvalue(L, 1, n) : lua_setupvalue(L, 1, n);
if (name == NULL) return 0;
lua_pushstring(L, name);
lua_insert(L, -(get+1));
return get + 1;
}
static int db_getupvalue (lua_State *L) {
return auxupvalue(L, 1);
}
static int db_setupvalue (lua_State *L) {
luaL_checkany(L, 3);
return auxupvalue(L, 0);
}
static const char KEY_HOOK = 'h';
static void hookf (lua_State *L, lua_Debug *ar) {
static const char *const hooknames[] =
{"call", "return", "line", "count", "tail return"};
lua_pushlightuserdata(L, (void *)&KEY_HOOK);
lua_rawget(L, LUA_REGISTRYINDEX);
lua_pushlightuserdata(L, L);
lua_rawget(L, -2);
if (lua_isfunction(L, -1)) {
lua_pushstring(L, hooknames[(int)ar->event]);
if (ar->currentline >= 0)
lua_pushinteger(L, ar->currentline);
else lua_pushnil(L);
lua_assert(lua_getinfo(L, "lS", ar));
lua_call(L, 2, 0);
}
}
static int makemask (const char *smask, int count) {
int mask = 0;
if (strchr(smask, 'c')) mask |= LUA_MASKCALL;
if (strchr(smask, 'r')) mask |= LUA_MASKRET;
if (strchr(smask, 'l')) mask |= LUA_MASKLINE;
if (count > 0) mask |= LUA_MASKCOUNT;
return mask;
}
static char *unmakemask (int mask, char *smask) {
int i = 0;
if (mask & LUA_MASKCALL) smask[i++] = 'c';
if (mask & LUA_MASKRET) smask[i++] = 'r';
if (mask & LUA_MASKLINE) smask[i++] = 'l';
smask[i] = '\0';
return smask;
}
static void gethooktable (lua_State *L) {
lua_pushlightuserdata(L, (void *)&KEY_HOOK);
lua_rawget(L, LUA_REGISTRYINDEX);
if (!lua_istable(L, -1)) {
lua_pop(L, 1);
lua_createtable(L, 0, 1);
lua_pushlightuserdata(L, (void *)&KEY_HOOK);
lua_pushvalue(L, -2);
lua_rawset(L, LUA_REGISTRYINDEX);
}
}
static int db_sethook (lua_State *L) {
int arg, mask, count;
lua_Hook func;
lua_State *L1 = getthread(L, &arg);
if (lua_isnoneornil(L, arg+1)) {
lua_settop(L, arg+1);
func = NULL; mask = 0; count = 0; /* turn off hooks */
}
else {
const char *smask = luaL_checkstring(L, arg+2);
luaL_checktype(L, arg+1, LUA_TFUNCTION);
count = luaL_optint(L, arg+3, 0);
func = hookf; mask = makemask(smask, count);
}
gethooktable(L);
lua_pushlightuserdata(L, L1);
lua_pushvalue(L, arg+1);
lua_rawset(L, -3); /* set new hook */
lua_pop(L, 1); /* remove hook table */
lua_sethook(L1, func, mask, count); /* set hooks */
return 0;
}
static int db_gethook (lua_State *L) {
int arg;
lua_State *L1 = getthread(L, &arg);
char buff[5];
int mask = lua_gethookmask(L1);
lua_Hook hook = lua_gethook(L1);
if (hook != NULL && hook != hookf) /* external hook? */
lua_pushliteral(L, "external hook");
else {
gethooktable(L);
lua_pushlightuserdata(L, L1);
lua_rawget(L, -2); /* get hook */
lua_remove(L, -2); /* remove hook table */
}
lua_pushstring(L, unmakemask(mask, buff));
lua_pushinteger(L, lua_gethookcount(L1));
return 3;
}
static int db_debug (lua_State *L) {
for (;;) {
char buffer[250];
fputs("lua_debug> ", stderr);
if (fgets(buffer, sizeof(buffer), stdin) == 0 ||
strcmp(buffer, "cont\n") == 0)
return 0;
if (luaL_loadbuffer(L, buffer, strlen(buffer), "=(debug command)") ||
lua_pcall(L, 0, 0, 0)) {
fputs(lua_tostring(L, -1), stderr);
fputs("\n", stderr);
}
lua_settop(L, 0); /* remove eventual returns */
}
}
#define LEVELS1 12 /* size of the first part of the stack */
#define LEVELS2 10 /* size of the second part of the stack */
static int db_errorfb (lua_State *L) {
int level;
int firstpart = 1; /* still before eventual `...' */
int arg;
lua_State *L1 = getthread(L, &arg);
lua_Debug ar;
if (lua_isnumber(L, arg+2)) {
level = (int)lua_tointeger(L, arg+2);
lua_pop(L, 1);
}
else
level = (L == L1) ? 1 : 0; /* level 0 may be this own function */
if (lua_gettop(L) == arg)
lua_pushliteral(L, "");
else if (!lua_isstring(L, arg+1)) return 1; /* message is not a string */
else lua_pushliteral(L, "\n");
lua_pushliteral(L, "stack traceback:");
while (lua_getstack(L1, level++, &ar)) {
if (level > LEVELS1 && firstpart) {
/* no more than `LEVELS2' more levels? */
if (!lua_getstack(L1, level+LEVELS2, &ar))
level--; /* keep going */
else {
lua_pushliteral(L, "\n\t..."); /* too many levels */
while (lua_getstack(L1, level+LEVELS2, &ar)) /* find last levels */
level++;
}
firstpart = 0;
continue;
}
lua_pushliteral(L, "\n\t");
lua_getinfo(L1, "Snl", &ar);
lua_pushfstring(L, "%s:", ar.short_src);
if (ar.currentline > 0)
lua_pushfstring(L, "%d:", ar.currentline);
if (*ar.namewhat != '\0') /* is there a name? */
lua_pushfstring(L, " in function " LUA_QS, ar.name);
else {
if (*ar.what == 'm') /* main? */
lua_pushfstring(L, " in main chunk");
else if (*ar.what == 'C' || *ar.what == 't')
lua_pushliteral(L, " ?"); /* C function or tail call */
else
lua_pushfstring(L, " in function <%s:%d>",
ar.short_src, ar.linedefined);
}
lua_concat(L, lua_gettop(L) - arg);
}
lua_concat(L, lua_gettop(L) - arg);
return 1;
}
static const luaL_Reg dblib[] = {
{"debug", db_debug},
{"getfenv", db_getfenv},
{"gethook", db_gethook},
{"getinfo", db_getinfo},
{"getlocal", db_getlocal},
{"getregistry", db_getregistry},
{"getmetatable", db_getmetatable},
{"getupvalue", db_getupvalue},
{"setfenv", db_setfenv},
{"sethook", db_sethook},
{"setlocal", db_setlocal},
{"setmetatable", db_setmetatable},
{"setupvalue", db_setupvalue},
{"traceback", db_errorfb},
{NULL, NULL}
};
LUALIB_API int luaopen_debug (lua_State *L) {
luaL_register(L, LUA_DBLIBNAME, dblib);
return 1;
}

638
desmume/src/windows/lua/lua-5.1.4/src/ldebug.c
View File

@ -1,638 +0,0 @@
/*
** $Id: ldebug.c,v 2.29.1.6 2008/05/08 16:56:26 roberto Exp $
** Debug Interface
** See Copyright Notice in lua.h
*/
#include <stdarg.h>
#include <stddef.h>
#include <string.h>
#define ldebug_c
#define LUA_CORE
#include "lua.h"
#include "lapi.h"
#include "lcode.h"
#include "ldebug.h"
#include "ldo.h"
#include "lfunc.h"
#include "lobject.h"
#include "lopcodes.h"
#include "lstate.h"
#include "lstring.h"
#include "ltable.h"
#include "ltm.h"
#include "lvm.h"
static const char *getfuncname (lua_State *L, CallInfo *ci, const char **name);
static int currentpc (lua_State *L, CallInfo *ci) {
if (!isLua(ci)) return -1; /* function is not a Lua function? */
if (ci == L->ci)
ci->savedpc = L->savedpc;
return pcRel(ci->savedpc, ci_func(ci)->l.p);
}
static int currentline (lua_State *L, CallInfo *ci) {
int pc = currentpc(L, ci);
if (pc < 0)
return -1; /* only active lua functions have current-line information */
else
return getline(ci_func(ci)->l.p, pc);
}
/*
** this function can be called asynchronous (e.g. during a signal)
*/
LUA_API int lua_sethook (lua_State *L, lua_Hook func, int mask, int count) {
if (func == NULL || mask == 0) { /* turn off hooks? */
mask = 0;
func = NULL;
}
L->hook = func;
L->basehookcount = count;
resethookcount(L);
L->hookmask = cast_byte(mask);
return 1;
}
LUA_API lua_Hook lua_gethook (lua_State *L) {
return L->hook;
}
LUA_API int lua_gethookmask (lua_State *L) {
return L->hookmask;
}
LUA_API int lua_gethookcount (lua_State *L) {
return L->basehookcount;
}
LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar) {
int status;
CallInfo *ci;
lua_lock(L);
for (ci = L->ci; level > 0 && ci > L->base_ci; ci--) {
level--;
if (f_isLua(ci)) /* Lua function? */
level -= ci->tailcalls; /* skip lost tail calls */
}
if (level == 0 && ci > L->base_ci) { /* level found? */
status = 1;
ar->i_ci = cast_int(ci - L->base_ci);
}
else if (level < 0) { /* level is of a lost tail call? */
status = 1;
ar->i_ci = 0;
}
else status = 0; /* no such level */
lua_unlock(L);
return status;
}
static Proto *getluaproto (CallInfo *ci) {
return (isLua(ci) ? ci_func(ci)->l.p : NULL);
}
static const char *findlocal (lua_State *L, CallInfo *ci, int n) {
const char *name;
Proto *fp = getluaproto(ci);
if (fp && (name = luaF_getlocalname(fp, n, currentpc(L, ci))) != NULL)
return name; /* is a local variable in a Lua function */
else {
StkId limit = (ci == L->ci) ? L->top : (ci+1)->func;
if (limit - ci->base >= n && n > 0) /* is 'n' inside 'ci' stack? */
return "(*temporary)";
else
return NULL;
}
}
LUA_API const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n) {
CallInfo *ci = L->base_ci + ar->i_ci;
const char *name = findlocal(L, ci, n);
lua_lock(L);
if (name)
luaA_pushobject(L, ci->base + (n - 1));
lua_unlock(L);
return name;
}
LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n) {
CallInfo *ci = L->base_ci + ar->i_ci;
const char *name = findlocal(L, ci, n);
lua_lock(L);
if (name)
setobjs2s(L, ci->base + (n - 1), L->top - 1);
L->top--; /* pop value */
lua_unlock(L);
return name;
}
static void funcinfo (lua_Debug *ar, Closure *cl) {
if (cl->c.isC) {
ar->source = "=[C]";
ar->linedefined = -1;
ar->lastlinedefined = -1;
ar->what = "C";
}
else {
ar->source = getstr(cl->l.p->source);
ar->linedefined = cl->l.p->linedefined;
ar->lastlinedefined = cl->l.p->lastlinedefined;
ar->what = (ar->linedefined == 0) ? "main" : "Lua";
}
luaO_chunkid(ar->short_src, ar->source, LUA_IDSIZE);
}
static void info_tailcall (lua_Debug *ar) {
ar->name = ar->namewhat = "";
ar->what = "tail";
ar->lastlinedefined = ar->linedefined = ar->currentline = -1;
ar->source = "=(tail call)";
luaO_chunkid(ar->short_src, ar->source, LUA_IDSIZE);
ar->nups = 0;
}
static void collectvalidlines (lua_State *L, Closure *f) {
if (f == NULL || f->c.isC) {
setnilvalue(L->top);
}
else {
Table *t = luaH_new(L, 0, 0);
int *lineinfo = f->l.p->lineinfo;
int i;
for (i=0; i<f->l.p->sizelineinfo; i++)
setbvalue(luaH_setnum(L, t, lineinfo[i]), 1);
sethvalue(L, L->top, t);
}
incr_top(L);
}
static int auxgetinfo (lua_State *L, const char *what, lua_Debug *ar,
Closure *f, CallInfo *ci) {
int status = 1;
if (f == NULL) {
info_tailcall(ar);
return status;
}
for (; *what; what++) {
switch (*what) {
case 'S': {
funcinfo(ar, f);
break;
}
case 'l': {
ar->currentline = (ci) ? currentline(L, ci) : -1;
break;
}
case 'u': {
ar->nups = f->c.nupvalues;
break;
}
case 'n': {
ar->namewhat = (ci) ? getfuncname(L, ci, &ar->name) : NULL;
if (ar->namewhat == NULL) {
ar->namewhat = ""; /* not found */
ar->name = NULL;
}
break;
}
case 'L':
case 'f': /* handled by lua_getinfo */
break;
default: status = 0; /* invalid option */
}
}
return status;
}
LUA_API int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar) {
int status;
Closure *f = NULL;
CallInfo *ci = NULL;
lua_lock(L);
if (*what == '>') {
StkId func = L->top - 1;
luai_apicheck(L, ttisfunction(func));
what++; /* skip the '>' */
f = clvalue(func);
L->top--; /* pop function */
}
else if (ar->i_ci != 0) { /* no tail call? */
ci = L->base_ci + ar->i_ci;
lua_assert(ttisfunction(ci->func));
f = clvalue(ci->func);
}
status = auxgetinfo(L, what, ar, f, ci);
if (strchr(what, 'f')) {
if (f == NULL) setnilvalue(L->top);
else setclvalue(L, L->top, f);
incr_top(L);
}
if (strchr(what, 'L'))
collectvalidlines(L, f);
lua_unlock(L);
return status;
}
/*
** {======================================================
** Symbolic Execution and code checker
** =======================================================
*/
#define check(x) if (!(x)) return 0;
#define checkjump(pt,pc) check(0 <= pc && pc < pt->sizecode)
#define checkreg(pt,reg) check((reg) < (pt)->maxstacksize)
static int precheck (const Proto *pt) {
check(pt->maxstacksize <= MAXSTACK);
check(pt->numparams+(pt->is_vararg & VARARG_HASARG) <= pt->maxstacksize);
check(!(pt->is_vararg & VARARG_NEEDSARG) ||
(pt->is_vararg & VARARG_HASARG));
check(pt->sizeupvalues <= pt->nups);
check(pt->sizelineinfo == pt->sizecode || pt->sizelineinfo == 0);
check(pt->sizecode > 0 && GET_OPCODE(pt->code[pt->sizecode-1]) == OP_RETURN);
return 1;
}
#define checkopenop(pt,pc) luaG_checkopenop((pt)->code[(pc)+1])
int luaG_checkopenop (Instruction i) {
switch (GET_OPCODE(i)) {
case OP_CALL:
case OP_TAILCALL:
case OP_RETURN:
case OP_SETLIST: {
check(GETARG_B(i) == 0);
return 1;
}
default: return 0; /* invalid instruction after an open call */
}
}
static int checkArgMode (const Proto *pt, int r, enum OpArgMask mode) {
switch (mode) {
case OpArgN: check(r == 0); break;
case OpArgU: break;
case OpArgR: checkreg(pt, r); break;
case OpArgK:
check(ISK(r) ? INDEXK(r) < pt->sizek : r < pt->maxstacksize);
break;
}
return 1;
}
static Instruction symbexec (const Proto *pt, int lastpc, int reg) {
int pc;
int last; /* stores position of last instruction that changed `reg' */
last = pt->sizecode-1; /* points to final return (a `neutral' instruction) */
check(precheck(pt));
for (pc = 0; pc < lastpc; pc++) {
Instruction i = pt->code[pc];
OpCode op = GET_OPCODE(i);
int a = GETARG_A(i);
int b = 0;
int c = 0;
check(op < NUM_OPCODES);
checkreg(pt, a);
switch (getOpMode(op)) {
case iABC: {
b = GETARG_B(i);
c = GETARG_C(i);
check(checkArgMode(pt, b, getBMode(op)));
check(checkArgMode(pt, c, getCMode(op)));
break;
}
case iABx: {
b = GETARG_Bx(i);
if (getBMode(op) == OpArgK) check(b < pt->sizek);
break;
}
case iAsBx: {
b = GETARG_sBx(i);
if (getBMode(op) == OpArgR) {
int dest = pc+1+b;
check(0 <= dest && dest < pt->sizecode);
if (dest > 0) {
int j;
/* check that it does not jump to a setlist count; this
is tricky, because the count from a previous setlist may
have the same value of an invalid setlist; so, we must
go all the way back to the first of them (if any) */
for (j = 0; j < dest; j++) {
Instruction d = pt->code[dest-1-j];
if (!(GET_OPCODE(d) == OP_SETLIST && GETARG_C(d) == 0)) break;
}
/* if 'j' is even, previous value is not a setlist (even if
it looks like one) */
check((j&1) == 0);
}
}
break;
}
}
if (testAMode(op)) {
if (a == reg) last = pc; /* change register `a' */
}
if (testTMode(op)) {
check(pc+2 < pt->sizecode); /* check skip */
check(GET_OPCODE(pt->code[pc+1]) == OP_JMP);
}
switch (op) {
case OP_LOADBOOL: {
if (c == 1) { /* does it jump? */
check(pc+2 < pt->sizecode); /* check its jump */
check(GET_OPCODE(pt->code[pc+1]) != OP_SETLIST ||
GETARG_C(pt->code[pc+1]) != 0);
}
break;
}
case OP_LOADNIL: {
if (a <= reg && reg <= b)
last = pc; /* set registers from `a' to `b' */
break;
}
case OP_GETUPVAL:
case OP_SETUPVAL: {
check(b < pt->nups);
break;
}
case OP_GETGLOBAL:
case OP_SETGLOBAL: {
check(ttisstring(&pt->k[b]));
break;
}
case OP_SELF: {
checkreg(pt, a+1);
if (reg == a+1) last = pc;
break;
}
case OP_CONCAT: {
check(b < c); /* at least two operands */
break;
}
case OP_TFORLOOP: {
check(c >= 1); /* at least one result (control variable) */
checkreg(pt, a+2+c); /* space for results */
if (reg >= a+2) last = pc; /* affect all regs above its base */
break;
}
case OP_FORLOOP:
case OP_FORPREP:
checkreg(pt, a+3);
/* go through */
case OP_JMP: {
int dest = pc+1+b;
/* not full check and jump is forward and do not skip `lastpc'? */
if (reg != NO_REG && pc < dest && dest <= lastpc)
pc += b; /* do the jump */
break;
}
case OP_CALL:
case OP_TAILCALL: {
if (b != 0) {
checkreg(pt, a+b-1);
}
c--; /* c = num. returns */
if (c == LUA_MULTRET) {
check(checkopenop(pt, pc));
}
else if (c != 0)
checkreg(pt, a+c-1);
if (reg >= a) last = pc; /* affect all registers above base */
break;
}
case OP_RETURN: {
b--; /* b = num. returns */
if (b > 0) checkreg(pt, a+b-1);
break;
}
case OP_SETLIST: {
if (b > 0) checkreg(pt, a + b);
if (c == 0) {
pc++;
check(pc < pt->sizecode - 1);
}
break;
}
case OP_CLOSURE: {
int nup, j;
check(b < pt->sizep);
nup = pt->p[b]->nups;
check(pc + nup < pt->sizecode);
for (j = 1; j <= nup; j++) {
OpCode op1 = GET_OPCODE(pt->code[pc + j]);
check(op1 == OP_GETUPVAL || op1 == OP_MOVE);
}
if (reg != NO_REG) /* tracing? */
pc += nup; /* do not 'execute' these pseudo-instructions */
break;
}
case OP_VARARG: {
check((pt->is_vararg & VARARG_ISVARARG) &&
!(pt->is_vararg & VARARG_NEEDSARG));
b--;
if (b == LUA_MULTRET) check(checkopenop(pt, pc));
checkreg(pt, a+b-1);
break;
}
default: break;
}
}
return pt->code[last];
}
#undef check
#undef checkjump
#undef checkreg
/* }====================================================== */
int luaG_checkcode (const Proto *pt) {
return (symbexec(pt, pt->sizecode, NO_REG) != 0);
}
static const char *kname (Proto *p, int c) {
if (ISK(c) && ttisstring(&p->k[INDEXK(c)]))
return svalue(&p->k[INDEXK(c)]);
else
return "?";
}
static const char *getobjname (lua_State *L, CallInfo *ci, int stackpos,
const char **name) {
if (isLua(ci)) { /* a Lua function? */
Proto *p = ci_func(ci)->l.p;
int pc = currentpc(L, ci);
Instruction i;
*name = luaF_getlocalname(p, stackpos+1, pc);
if (*name) /* is a local? */
return "local";
i = symbexec(p, pc, stackpos); /* try symbolic execution */
lua_assert(pc != -1);
switch (GET_OPCODE(i)) {
case OP_GETGLOBAL: {
int g = GETARG_Bx(i); /* global index */
lua_assert(ttisstring(&p->k[g]));
*name = svalue(&p->k[g]);
return "global";
}
case OP_MOVE: {
int a = GETARG_A(i);
int b = GETARG_B(i); /* move from `b' to `a' */
if (b < a)
return getobjname(L, ci, b, name); /* get name for `b' */
break;
}
case OP_GETTABLE: {
int k = GETARG_C(i); /* key index */
*name = kname(p, k);
return "field";
}
case OP_GETUPVAL: {
int u = GETARG_B(i); /* upvalue index */
*name = p->upvalues ? getstr(p->upvalues[u]) : "?";
return "upvalue";
}
case OP_SELF: {
int k = GETARG_C(i); /* key index */
*name = kname(p, k);
return "method";
}
default: break;
}
}
return NULL; /* no useful name found */
}
static const char *getfuncname (lua_State *L, CallInfo *ci, const char **name) {
Instruction i;
if ((isLua(ci) && ci->tailcalls > 0) || !isLua(ci - 1))
return NULL; /* calling function is not Lua (or is unknown) */
ci--; /* calling function */
i = ci_func(ci)->l.p->code[currentpc(L, ci)];
if (GET_OPCODE(i) == OP_CALL || GET_OPCODE(i) == OP_TAILCALL ||
GET_OPCODE(i) == OP_TFORLOOP)
return getobjname(L, ci, GETARG_A(i), name);
else
return NULL; /* no useful name can be found */
}
/* only ANSI way to check whether a pointer points to an array */
static int isinstack (CallInfo *ci, const TValue *o) {
StkId p;
for (p = ci->base; p < ci->top; p++)
if (o == p) return 1;
return 0;
}
void luaG_typeerror (lua_State *L, const TValue *o, const char *op) {
const char *name = NULL;
const char *t = luaT_typenames[ttype(o)];
const char *kind = (isinstack(L->ci, o)) ?
getobjname(L, L->ci, cast_int(o - L->base), &name) :
NULL;
if (kind)
luaG_runerror(L, "attempt to %s %s " LUA_QS " (a %s value)",
op, kind, name, t);
else
luaG_runerror(L, "attempt to %s a %s value", op, t);
}
void luaG_concaterror (lua_State *L, StkId p1, StkId p2) {
if (ttisstring(p1) || ttisnumber(p1)) p1 = p2;
lua_assert(!ttisstring(p1) && !ttisnumber(p1));
luaG_typeerror(L, p1, "concatenate");
}
void luaG_aritherror (lua_State *L, const TValue *p1, const TValue *p2) {
TValue temp;
if (luaV_tonumber(p1, &temp) == NULL)
p2 = p1; /* first operand is wrong */
luaG_typeerror(L, p2, "perform arithmetic on");
}
int luaG_ordererror (lua_State *L, const TValue *p1, const TValue *p2) {
const char *t1 = luaT_typenames[ttype(p1)];
const char *t2 = luaT_typenames[ttype(p2)];
if (t1[2] == t2[2])
luaG_runerror(L, "attempt to compare two %s values", t1);
else
luaG_runerror(L, "attempt to compare %s with %s", t1, t2);
return 0;
}
static void addinfo (lua_State *L, const char *msg) {
CallInfo *ci = L->ci;
if (isLua(ci)) { /* is Lua code? */
char buff[LUA_IDSIZE]; /* add file:line information */
int line = currentline(L, ci);
luaO_chunkid(buff, getstr(getluaproto(ci)->source), LUA_IDSIZE);
luaO_pushfstring(L, "%s:%d: %s", buff, line, msg);
}
}
void luaG_errormsg (lua_State *L) {
if (L->errfunc != 0) { /* is there an error handling function? */
StkId errfunc = restorestack(L, L->errfunc);
if (!ttisfunction(errfunc)) luaD_throw(L, LUA_ERRERR);
setobjs2s(L, L->top, L->top - 1); /* move argument */
setobjs2s(L, L->top - 1, errfunc); /* push function */
incr_top(L);
luaD_call(L, L->top - 2, 1); /* call it */
}
luaD_throw(L, LUA_ERRRUN);
}
void luaG_runerror (lua_State *L, const char *fmt, ...) {
va_list argp;
va_start(argp, fmt);
addinfo(L, luaO_pushvfstring(L, fmt, argp));
va_end(argp);
luaG_errormsg(L);
}

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desmume/src/windows/lua/lua-5.1.4/src/ldo.c
View File

@ -1,518 +0,0 @@
/*
** $Id: ldo.c,v 2.38.1.3 2008/01/18 22:31:22 roberto Exp $
** Stack and Call structure of Lua
** See Copyright Notice in lua.h
*/
#include <setjmp.h>
#include <stdlib.h>
#include <string.h>
#define ldo_c
#define LUA_CORE
#include "lua.h"
#include "ldebug.h"
#include "ldo.h"
#include "lfunc.h"
#include "lgc.h"
#include "lmem.h"
#include "lobject.h"
#include "lopcodes.h"
#include "lparser.h"
#include "lstate.h"
#include "lstring.h"
#include "ltable.h"
#include "ltm.h"
#include "lundump.h"
#include "lvm.h"
#include "lzio.h"
/*
** {======================================================
** Error-recovery functions
** =======================================================
*/
/* chain list of long jump buffers */
struct lua_longjmp {
struct lua_longjmp *previous;
luai_jmpbuf b;
volatile int status; /* error code */
};
void luaD_seterrorobj (lua_State *L, int errcode, StkId oldtop) {
switch (errcode) {
case LUA_ERRMEM: {
setsvalue2s(L, oldtop, luaS_newliteral(L, MEMERRMSG));
break;
}
case LUA_ERRERR: {
setsvalue2s(L, oldtop, luaS_newliteral(L, "error in error handling"));
break;
}
case LUA_ERRSYNTAX:
case LUA_ERRRUN: {
setobjs2s(L, oldtop, L->top - 1); /* error message on current top */
break;
}
}
L->top = oldtop + 1;
}
static void restore_stack_limit (lua_State *L) {
lua_assert(L->stack_last - L->stack == L->stacksize - EXTRA_STACK - 1);
if (L->size_ci > LUAI_MAXCALLS) { /* there was an overflow? */
int inuse = cast_int(L->ci - L->base_ci);
if (inuse + 1 < LUAI_MAXCALLS) /* can `undo' overflow? */
luaD_reallocCI(L, LUAI_MAXCALLS);
}
}
static void resetstack (lua_State *L, int status) {
L->ci = L->base_ci;
L->base = L->ci->base;
luaF_close(L, L->base); /* close eventual pending closures */
luaD_seterrorobj(L, status, L->base);
L->nCcalls = L->baseCcalls;
L->allowhook = 1;
restore_stack_limit(L);
L->errfunc = 0;
L->errorJmp = NULL;
}
void luaD_throw (lua_State *L, int errcode) {
if (L->errorJmp) {
L->errorJmp->status = errcode;
LUAI_THROW(L, L->errorJmp);
}
else {
L->status = cast_byte(errcode);
if (G(L)->panic) {
resetstack(L, errcode);
lua_unlock(L);
G(L)->panic(L);
}
exit(EXIT_FAILURE);
}
}
int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud) {
struct lua_longjmp lj;
lj.status = 0;
lj.previous = L->errorJmp; /* chain new error handler */
L->errorJmp = &lj;
LUAI_TRY(L, &lj,
(*f)(L, ud);
);
L->errorJmp = lj.previous; /* restore old error handler */
return lj.status;
}
/* }====================================================== */
static void correctstack (lua_State *L, TValue *oldstack) {
CallInfo *ci;
GCObject *up;
L->top = (L->top - oldstack) + L->stack;
for (up = L->openupval; up != NULL; up = up->gch.next)
gco2uv(up)->v = (gco2uv(up)->v - oldstack) + L->stack;
for (ci = L->base_ci; ci <= L->ci; ci++) {
ci->top = (ci->top - oldstack) + L->stack;
ci->base = (ci->base - oldstack) + L->stack;
ci->func = (ci->func - oldstack) + L->stack;
}
L->base = (L->base - oldstack) + L->stack;
}
void luaD_reallocstack (lua_State *L, int newsize) {
TValue *oldstack = L->stack;
int realsize = newsize + 1 + EXTRA_STACK;
lua_assert(L->stack_last - L->stack == L->stacksize - EXTRA_STACK - 1);
luaM_reallocvector(L, L->stack, L->stacksize, realsize, TValue);
L->stacksize = realsize;
L->stack_last = L->stack+newsize;
correctstack(L, oldstack);
}
void luaD_reallocCI (lua_State *L, int newsize) {
CallInfo *oldci = L->base_ci;
luaM_reallocvector(L, L->base_ci, L->size_ci, newsize, CallInfo);
L->size_ci = newsize;
L->ci = (L->ci - oldci) + L->base_ci;
L->end_ci = L->base_ci + L->size_ci - 1;
}
void luaD_growstack (lua_State *L, int n) {
if (n <= L->stacksize) /* double size is enough? */
luaD_reallocstack(L, 2*L->stacksize);
else
luaD_reallocstack(L, L->stacksize + n);
}
static CallInfo *growCI (lua_State *L) {
if (L->size_ci > LUAI_MAXCALLS) /* overflow while handling overflow? */
luaD_throw(L, LUA_ERRERR);
else {
luaD_reallocCI(L, 2*L->size_ci);
if (L->size_ci > LUAI_MAXCALLS)
luaG_runerror(L, "stack overflow");
}
return ++L->ci;
}
void luaD_callhook (lua_State *L, int event, int line) {
lua_Hook hook = L->hook;
if (hook && L->allowhook) {
ptrdiff_t top = savestack(L, L->top);
ptrdiff_t ci_top = savestack(L, L->ci->top);
lua_Debug ar;
ar.event = event;
ar.currentline = line;
if (event == LUA_HOOKTAILRET)
ar.i_ci = 0; /* tail call; no debug information about it */
else
ar.i_ci = cast_int(L->ci - L->base_ci);
luaD_checkstack(L, LUA_MINSTACK); /* ensure minimum stack size */
L->ci->top = L->top + LUA_MINSTACK;
lua_assert(L->ci->top <= L->stack_last);
L->allowhook = 0; /* cannot call hooks inside a hook */
lua_unlock(L);
(*hook)(L, &ar);
lua_lock(L);
lua_assert(!L->allowhook);
L->allowhook = 1;
L->ci->top = restorestack(L, ci_top);
L->top = restorestack(L, top);
}
}
static StkId adjust_varargs (lua_State *L, Proto *p, int actual) {
int i;
int nfixargs = p->numparams;
Table *htab = NULL;
StkId base, fixed;
for (; actual < nfixargs; ++actual)
setnilvalue(L->top++);
#if defined(LUA_COMPAT_VARARG)
if (p->is_vararg & VARARG_NEEDSARG) { /* compat. with old-style vararg? */
int nvar = actual - nfixargs; /* number of extra arguments */
lua_assert(p->is_vararg & VARARG_HASARG);
luaC_checkGC(L);
htab = luaH_new(L, nvar, 1); /* create `arg' table */
for (i=0; i<nvar; i++) /* put extra arguments into `arg' table */
setobj2n(L, luaH_setnum(L, htab, i+1), L->top - nvar + i);
/* store counter in field `n' */
setnvalue(luaH_setstr(L, htab, luaS_newliteral(L, "n")), cast_num(nvar));
}
#endif
/* move fixed parameters to final position */
fixed = L->top - actual; /* first fixed argument */
base = L->top; /* final position of first argument */
for (i=0; i<nfixargs; i++) {
setobjs2s(L, L->top++, fixed+i);
setnilvalue(fixed+i);
}
/* add `arg' parameter */
if (htab) {
sethvalue(L, L->top++, htab);
lua_assert(iswhite(obj2gco(htab)));
}
return base;
}
static StkId tryfuncTM (lua_State *L, StkId func) {
const TValue *tm = luaT_gettmbyobj(L, func, TM_CALL);
StkId p;
ptrdiff_t funcr = savestack(L, func);
if (!ttisfunction(tm))
luaG_typeerror(L, func, "call");
/* Open a hole inside the stack at `func' */
for (p = L->top; p > func; p--) setobjs2s(L, p, p-1);
incr_top(L);
func = restorestack(L, funcr); /* previous call may change stack */
setobj2s(L, func, tm); /* tag method is the new function to be called */
return func;
}
#define inc_ci(L) \
((L->ci == L->end_ci) ? growCI(L) : \
(condhardstacktests(luaD_reallocCI(L, L->size_ci)), ++L->ci))
int luaD_precall (lua_State *L, StkId func, int nresults) {
LClosure *cl;
ptrdiff_t funcr;
if (!ttisfunction(func)) /* `func' is not a function? */
func = tryfuncTM(L, func); /* check the `function' tag method */
funcr = savestack(L, func);
cl = &clvalue(func)->l;
L->ci->savedpc = L->savedpc;
if (!cl->isC) { /* Lua function? prepare its call */
CallInfo *ci;
StkId st, base;
Proto *p = cl->p;
luaD_checkstack(L, p->maxstacksize);
func = restorestack(L, funcr);
if (!p->is_vararg) { /* no varargs? */
base = func + 1;
if (L->top > base + p->numparams)
L->top = base + p->numparams;
}
else { /* vararg function */
int nargs = cast_int(L->top - func) - 1;
base = adjust_varargs(L, p, nargs);
func = restorestack(L, funcr); /* previous call may change the stack */
}
ci = inc_ci(L); /* now `enter' new function */
ci->func = func;
L->base = ci->base = base;
ci->top = L->base + p->maxstacksize;
lua_assert(ci->top <= L->stack_last);
L->savedpc = p->code; /* starting point */
ci->tailcalls = 0;
ci->nresults = nresults;
for (st = L->top; st < ci->top; st++)
setnilvalue(st);
L->top = ci->top;
if (L->hookmask & LUA_MASKCALL) {
L->savedpc++; /* hooks assume 'pc' is already incremented */
luaD_callhook(L, LUA_HOOKCALL, -1);
L->savedpc--; /* correct 'pc' */
}
return PCRLUA;
}
else { /* if is a C function, call it */
CallInfo *ci;
int n;
luaD_checkstack(L, LUA_MINSTACK); /* ensure minimum stack size */
ci = inc_ci(L); /* now `enter' new function */
ci->func = restorestack(L, funcr);
L->base = ci->base = ci->func + 1;
ci->top = L->top + LUA_MINSTACK;
lua_assert(ci->top <= L->stack_last);
ci->nresults = nresults;
if (L->hookmask & LUA_MASKCALL)
luaD_callhook(L, LUA_HOOKCALL, -1);
lua_unlock(L);
n = (*curr_func(L)->c.f)(L); /* do the actual call */
lua_lock(L);
if (n < 0) /* yielding? */
return PCRYIELD;
else {
luaD_poscall(L, L->top - n);
return PCRC;
}
}
}
static StkId callrethooks (lua_State *L, StkId firstResult) {
ptrdiff_t fr = savestack(L, firstResult); /* next call may change stack */
luaD_callhook(L, LUA_HOOKRET, -1);
if (f_isLua(L->ci)) { /* Lua function? */
while ((L->hookmask & LUA_MASKRET) && L->ci->tailcalls--) /* tail calls */
luaD_callhook(L, LUA_HOOKTAILRET, -1);
}
return restorestack(L, fr);
}
int luaD_poscall (lua_State *L, StkId firstResult) {
StkId res;
int wanted, i;
CallInfo *ci;
if (L->hookmask & LUA_MASKRET)
firstResult = callrethooks(L, firstResult);
ci = L->ci--;
res = ci->func; /* res == final position of 1st result */
wanted = ci->nresults;
L->base = (ci - 1)->base; /* restore base */
L->savedpc = (ci - 1)->savedpc; /* restore savedpc */
/* move results to correct place */
for (i = wanted; i != 0 && firstResult < L->top; i--)
setobjs2s(L, res++, firstResult++);
while (i-- > 0)
setnilvalue(res++);
L->top = res;
return (wanted - LUA_MULTRET); /* 0 iff wanted == LUA_MULTRET */
}
/*
** Call a function (C or Lua). The function to be called is at *func.
** The arguments are on the stack, right after the function.
** When returns, all the results are on the stack, starting at the original
** function position.
*/
void luaD_call (lua_State *L, StkId func, int nResults) {
if (++L->nCcalls >= LUAI_MAXCCALLS) {
if (L->nCcalls == LUAI_MAXCCALLS)
luaG_runerror(L, "C stack overflow");
else if (L->nCcalls >= (LUAI_MAXCCALLS + (LUAI_MAXCCALLS>>3)))
luaD_throw(L, LUA_ERRERR); /* error while handing stack error */
}
if (luaD_precall(L, func, nResults) == PCRLUA) /* is a Lua function? */
luaV_execute(L, 1); /* call it */
L->nCcalls--;
luaC_checkGC(L);
}
static void resume (lua_State *L, void *ud) {
StkId firstArg = cast(StkId, ud);
CallInfo *ci = L->ci;
if (L->status == 0) { /* start coroutine? */
lua_assert(ci == L->base_ci && firstArg > L->base);
if (luaD_precall(L, firstArg - 1, LUA_MULTRET) != PCRLUA)
return;
}
else { /* resuming from previous yield */
lua_assert(L->status == LUA_YIELD);
L->status = 0;
if (!f_isLua(ci)) { /* `common' yield? */
/* finish interrupted execution of `OP_CALL' */
lua_assert(GET_OPCODE(*((ci-1)->savedpc - 1)) == OP_CALL ||
GET_OPCODE(*((ci-1)->savedpc - 1)) == OP_TAILCALL);
if (luaD_poscall(L, firstArg)) /* complete it... */
L->top = L->ci->top; /* and correct top if not multiple results */
}
else /* yielded inside a hook: just continue its execution */
L->base = L->ci->base;
}
luaV_execute(L, cast_int(L->ci - L->base_ci));
}
static int resume_error (lua_State *L, const char *msg) {
L->top = L->ci->base;
setsvalue2s(L, L->top, luaS_new(L, msg));
incr_top(L);
lua_unlock(L);
return LUA_ERRRUN;
}
LUA_API int lua_resume (lua_State *L, int nargs) {
int status;
lua_lock(L);
if (L->status != LUA_YIELD && (L->status != 0 || L->ci != L->base_ci))
return resume_error(L, "cannot resume non-suspended coroutine");
if (L->nCcalls >= LUAI_MAXCCALLS)
return resume_error(L, "C stack overflow");
luai_userstateresume(L, nargs);
lua_assert(L->errfunc == 0);
L->baseCcalls = ++L->nCcalls;
status = luaD_rawrunprotected(L, resume, L->top - nargs);
if (status != 0) { /* error? */
L->status = cast_byte(status); /* mark thread as `dead' */
luaD_seterrorobj(L, status, L->top);
L->ci->top = L->top;
}
else {
lua_assert(L->nCcalls == L->baseCcalls);
status = L->status;
}
--L->nCcalls;
lua_unlock(L);
return status;
}
LUA_API int lua_yield (lua_State *L, int nresults) {
luai_userstateyield(L, nresults);
lua_lock(L);
if (L->nCcalls > L->baseCcalls)
luaG_runerror(L, "attempt to yield across metamethod/C-call boundary");
L->base = L->top - nresults; /* protect stack slots below */
L->status = LUA_YIELD;
lua_unlock(L);
return -1;
}
int luaD_pcall (lua_State *L, Pfunc func, void *u,
ptrdiff_t old_top, ptrdiff_t ef) {
int status;
unsigned short oldnCcalls = L->nCcalls;
ptrdiff_t old_ci = saveci(L, L->ci);
lu_byte old_allowhooks = L->allowhook;
ptrdiff_t old_errfunc = L->errfunc;
L->errfunc = ef;
status = luaD_rawrunprotected(L, func, u);
if (status != 0) { /* an error occurred? */
StkId oldtop = restorestack(L, old_top);
luaF_close(L, oldtop); /* close eventual pending closures */
luaD_seterrorobj(L, status, oldtop);
L->nCcalls = oldnCcalls;
L->ci = restoreci(L, old_ci);
L->base = L->ci->base;
L->savedpc = L->ci->savedpc;
L->allowhook = old_allowhooks;
restore_stack_limit(L);
}
L->errfunc = old_errfunc;
return status;
}
/*
** Execute a protected parser.
*/
struct SParser { /* data to `f_parser' */
ZIO *z;
Mbuffer buff; /* buffer to be used by the scanner */
const char *name;
};
static void f_parser (lua_State *L, void *ud) {
int i;
Proto *tf;
Closure *cl;
struct SParser *p = cast(struct SParser *, ud);
int c = luaZ_lookahead(p->z);
luaC_checkGC(L);
tf = ((c == LUA_SIGNATURE[0]) ? luaU_undump : luaY_parser)(L, p->z,
&p->buff, p->name);
cl = luaF_newLclosure(L, tf->nups, hvalue(gt(L)));
cl->l.p = tf;
for (i = 0; i < tf->nups; i++) /* initialize eventual upvalues */
cl->l.upvals[i] = luaF_newupval(L);
setclvalue(L, L->top, cl);
incr_top(L);
}
int luaD_protectedparser (lua_State *L, ZIO *z, const char *name) {
struct SParser p;
int status;
p.z = z; p.name = name;
luaZ_initbuffer(L, &p.buff);
status = luaD_pcall(L, f_parser, &p, savestack(L, L->top), L->errfunc);
luaZ_freebuffer(L, &p.buff);
return status;
}

164
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@ -1,164 +0,0 @@
/*
** $Id: ldump.c,v 2.8.1.1 2007/12/27 13:02:25 roberto Exp $
** save precompiled Lua chunks
** See Copyright Notice in lua.h
*/
#include <stddef.h>
#define ldump_c
#define LUA_CORE
#include "lua.h"
#include "lobject.h"
#include "lstate.h"
#include "lundump.h"
typedef struct {
lua_State* L;
lua_Writer writer;
void* data;
int strip;
int status;
} DumpState;
#define DumpMem(b,n,size,D) DumpBlock(b,(n)*(size),D)
#define DumpVar(x,D) DumpMem(&x,1,sizeof(x),D)
static void DumpBlock(const void* b, size_t size, DumpState* D)
{
if (D->status==0)
{
lua_unlock(D->L);
D->status=(*D->writer)(D->L,b,size,D->data);
lua_lock(D->L);
}
}
static void DumpChar(int y, DumpState* D)
{
char x=(char)y;
DumpVar(x,D);
}
static void DumpInt(int x, DumpState* D)
{
DumpVar(x,D);
}
static void DumpNumber(lua_Number x, DumpState* D)
{
DumpVar(x,D);
}
static void DumpVector(const void* b, int n, size_t size, DumpState* D)
{
DumpInt(n,D);
DumpMem(b,n,size,D);
}
static void DumpString(const TString* s, DumpState* D)
{
if (s==NULL || getstr(s)==NULL)
{
size_t size=0;
DumpVar(size,D);
}
else
{
size_t size=s->tsv.len+1; /* include trailing '\0' */
DumpVar(size,D);
DumpBlock(getstr(s),size,D);
}
}
#define DumpCode(f,D) DumpVector(f->code,f->sizecode,sizeof(Instruction),D)
static void DumpFunction(const Proto* f, const TString* p, DumpState* D);
static void DumpConstants(const Proto* f, DumpState* D)
{
int i,n=f->sizek;
DumpInt(n,D);
for (i=0; i<n; i++)
{
const TValue* o=&f->k[i];
DumpChar(ttype(o),D);
switch (ttype(o))
{
case LUA_TNIL:
break;
case LUA_TBOOLEAN:
DumpChar(bvalue(o),D);
break;
case LUA_TNUMBER:
DumpNumber(nvalue(o),D);
break;
case LUA_TSTRING:
DumpString(rawtsvalue(o),D);
break;
default:
lua_assert(0); /* cannot happen */
break;
}
}
n=f->sizep;
DumpInt(n,D);
for (i=0; i<n; i++) DumpFunction(f->p[i],f->source,D);
}
static void DumpDebug(const Proto* f, DumpState* D)
{
int i,n;
n= (D->strip) ? 0 : f->sizelineinfo;
DumpVector(f->lineinfo,n,sizeof(int),D);
n= (D->strip) ? 0 : f->sizelocvars;
DumpInt(n,D);
for (i=0; i<n; i++)
{
DumpString(f->locvars[i].varname,D);
DumpInt(f->locvars[i].startpc,D);
DumpInt(f->locvars[i].endpc,D);
}
n= (D->strip) ? 0 : f->sizeupvalues;
DumpInt(n,D);
for (i=0; i<n; i++) DumpString(f->upvalues[i],D);
}
static void DumpFunction(const Proto* f, const TString* p, DumpState* D)
{
DumpString((f->source==p || D->strip) ? NULL : f->source,D);
DumpInt(f->linedefined,D);
DumpInt(f->lastlinedefined,D);
DumpChar(f->nups,D);
DumpChar(f->numparams,D);
DumpChar(f->is_vararg,D);
DumpChar(f->maxstacksize,D);
DumpCode(f,D);
DumpConstants(f,D);
DumpDebug(f,D);
}
static void DumpHeader(DumpState* D)
{
char h[LUAC_HEADERSIZE];
luaU_header(h);
DumpBlock(h,LUAC_HEADERSIZE,D);
}
/*
** dump Lua function as precompiled chunk
*/
int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip)
{
DumpState D;
D.L=L;
D.writer=w;
D.data=data;
D.strip=strip;
D.status=0;
DumpHeader(&D);
DumpFunction(f,NULL,&D);
return D.status;
}

174
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@ -1,174 +0,0 @@
/*
** $Id: lfunc.c,v 2.12.1.2 2007/12/28 14:58:43 roberto Exp $
** Auxiliary functions to manipulate prototypes and closures
** See Copyright Notice in lua.h
*/
#include <stddef.h>
#define lfunc_c
#define LUA_CORE
#include "lua.h"
#include "lfunc.h"
#include "lgc.h"
#include "lmem.h"
#include "lobject.h"
#include "lstate.h"
Closure *luaF_newCclosure (lua_State *L, int nelems, Table *e) {
Closure *c = cast(Closure *, luaM_malloc(L, sizeCclosure(nelems)));
luaC_link(L, obj2gco(c), LUA_TFUNCTION);
c->c.isC = 1;
c->c.env = e;
c->c.nupvalues = cast_byte(nelems);
return c;
}
Closure *luaF_newLclosure (lua_State *L, int nelems, Table *e) {
Closure *c = cast(Closure *, luaM_malloc(L, sizeLclosure(nelems)));
luaC_link(L, obj2gco(c), LUA_TFUNCTION);
c->l.isC = 0;
c->l.env = e;
c->l.nupvalues = cast_byte(nelems);
while (nelems--) c->l.upvals[nelems] = NULL;
return c;
}
UpVal *luaF_newupval (lua_State *L) {
UpVal *uv = luaM_new(L, UpVal);
luaC_link(L, obj2gco(uv), LUA_TUPVAL);
uv->v = &uv->u.value;
setnilvalue(uv->v);
return uv;
}
UpVal *luaF_findupval (lua_State *L, StkId level) {
global_State *g = G(L);
GCObject **pp = &L->openupval;
UpVal *p;
UpVal *uv;
while (*pp != NULL && (p = ngcotouv(*pp))->v >= level) {
lua_assert(p->v != &p->u.value);
if (p->v == level) { /* found a corresponding upvalue? */
if (isdead(g, obj2gco(p))) /* is it dead? */
changewhite(obj2gco(p)); /* ressurect it */
return p;
}
pp = &p->next;
}
uv = luaM_new(L, UpVal); /* not found: create a new one */
uv->tt = LUA_TUPVAL;
uv->marked = luaC_white(g);
uv->v = level; /* current value lives in the stack */
uv->next = *pp; /* chain it in the proper position */
*pp = obj2gco(uv);
uv->u.l.prev = &g->uvhead; /* double link it in `uvhead' list */
uv->u.l.next = g->uvhead.u.l.next;
uv->u.l.next->u.l.prev = uv;
g->uvhead.u.l.next = uv;
lua_assert(uv->u.l.next->u.l.prev == uv && uv->u.l.prev->u.l.next == uv);
return uv;
}
static void unlinkupval (UpVal *uv) {
lua_assert(uv->u.l.next->u.l.prev == uv && uv->u.l.prev->u.l.next == uv);
uv->u.l.next->u.l.prev = uv->u.l.prev; /* remove from `uvhead' list */
uv->u.l.prev->u.l.next = uv->u.l.next;
}
void luaF_freeupval (lua_State *L, UpVal *uv) {
if (uv->v != &uv->u.value) /* is it open? */
unlinkupval(uv); /* remove from open list */
luaM_free(L, uv); /* free upvalue */
}
void luaF_close (lua_State *L, StkId level) {
UpVal *uv;
global_State *g = G(L);
while (L->openupval != NULL && (uv = ngcotouv(L->openupval))->v >= level) {
GCObject *o = obj2gco(uv);
lua_assert(!isblack(o) && uv->v != &uv->u.value);
L->openupval = uv->next; /* remove from `open' list */
if (isdead(g, o))
luaF_freeupval(L, uv); /* free upvalue */
else {
unlinkupval(uv);
setobj(L, &uv->u.value, uv->v);
uv->v = &uv->u.value; /* now current value lives here */
luaC_linkupval(L, uv); /* link upvalue into `gcroot' list */
}
}
}
Proto *luaF_newproto (lua_State *L) {
Proto *f = luaM_new(L, Proto);
luaC_link(L, obj2gco(f), LUA_TPROTO);
f->k = NULL;
f->sizek = 0;
f->p = NULL;
f->sizep = 0;
f->code = NULL;
f->sizecode = 0;
f->sizelineinfo = 0;
f->sizeupvalues = 0;
f->nups = 0;
f->upvalues = NULL;
f->numparams = 0;
f->is_vararg = 0;
f->maxstacksize = 0;
f->lineinfo = NULL;
f->sizelocvars = 0;
f->locvars = NULL;
f->linedefined = 0;
f->lastlinedefined = 0;
f->source = NULL;
return f;
}
void luaF_freeproto (lua_State *L, Proto *f) {
luaM_freearray(L, f->code, f->sizecode, Instruction);
luaM_freearray(L, f->p, f->sizep, Proto *);
luaM_freearray(L, f->k, f->sizek, TValue);
luaM_freearray(L, f->lineinfo, f->sizelineinfo, int);
luaM_freearray(L, f->locvars, f->sizelocvars, struct LocVar);
luaM_freearray(L, f->upvalues, f->sizeupvalues, TString *);
luaM_free(L, f);
}
void luaF_freeclosure (lua_State *L, Closure *c) {
int size = (c->c.isC) ? sizeCclosure(c->c.nupvalues) :
sizeLclosure(c->l.nupvalues);
luaM_freemem(L, c, size);
}
/*
** Look for n-th local variable at line `line' in function `func'.
** Returns NULL if not found.
*/
const char *luaF_getlocalname (const Proto *f, int local_number, int pc) {
int i;
for (i = 0; i<f->sizelocvars && f->locvars[i].startpc <= pc; i++) {
if (pc < f->locvars[i].endpc) { /* is variable active? */
local_number--;
if (local_number == 0)
return getstr(f->locvars[i].varname);
}
}
return NULL; /* not found */
}

711
desmume/src/windows/lua/lua-5.1.4/src/lgc.c
View File

@ -1,711 +0,0 @@
/*
** $Id: lgc.c,v 2.38.1.1 2007/12/27 13:02:25 roberto Exp $
** Garbage Collector
** See Copyright Notice in lua.h
*/
#include <string.h>
#define lgc_c
#define LUA_CORE
#include "lua.h"
#include "ldebug.h"
#include "ldo.h"
#include "lfunc.h"
#include "lgc.h"
#include "lmem.h"
#include "lobject.h"
#include "lstate.h"
#include "lstring.h"
#include "ltable.h"
#include "ltm.h"
#define GCSTEPSIZE 1024u
#define GCSWEEPMAX 40
#define GCSWEEPCOST 10
#define GCFINALIZECOST 100
#define maskmarks cast_byte(~(bitmask(BLACKBIT)|WHITEBITS))
#define makewhite(g,x) \
((x)->gch.marked = cast_byte(((x)->gch.marked & maskmarks) | luaC_white(g)))
#define white2gray(x) reset2bits((x)->gch.marked, WHITE0BIT, WHITE1BIT)
#define black2gray(x) resetbit((x)->gch.marked, BLACKBIT)
#define stringmark(s) reset2bits((s)->tsv.marked, WHITE0BIT, WHITE1BIT)
#define isfinalized(u) testbit((u)->marked, FINALIZEDBIT)
#define markfinalized(u) l_setbit((u)->marked, FINALIZEDBIT)
#define KEYWEAK bitmask(KEYWEAKBIT)
#define VALUEWEAK bitmask(VALUEWEAKBIT)
#define markvalue(g,o) { checkconsistency(o); \
if (iscollectable(o) && iswhite(gcvalue(o))) reallymarkobject(g,gcvalue(o)); }
#define markobject(g,t) { if (iswhite(obj2gco(t))) \
reallymarkobject(g, obj2gco(t)); }
#define setthreshold(g) (g->GCthreshold = (g->estimate/100) * g->gcpause)
static void removeentry (Node *n) {
lua_assert(ttisnil(gval(n)));
if (iscollectable(gkey(n)))
setttype(gkey(n), LUA_TDEADKEY); /* dead key; remove it */
}
static void reallymarkobject (global_State *g, GCObject *o) {
lua_assert(iswhite(o) && !isdead(g, o));
white2gray(o);
switch (o->gch.tt) {
case LUA_TSTRING: {
return;
}
case LUA_TUSERDATA: {
Table *mt = gco2u(o)->metatable;
gray2black(o); /* udata are never gray */
if (mt) markobject(g, mt);
markobject(g, gco2u(o)->env);
return;
}
case LUA_TUPVAL: {
UpVal *uv = gco2uv(o);
markvalue(g, uv->v);
if (uv->v == &uv->u.value) /* closed? */
gray2black(o); /* open upvalues are never black */
return;
}
case LUA_TFUNCTION: {
gco2cl(o)->c.gclist = g->gray;
g->gray = o;
break;
}
case LUA_TTABLE: {
gco2h(o)->gclist = g->gray;
g->gray = o;
break;
}
case LUA_TTHREAD: {
gco2th(o)->gclist = g->gray;
g->gray = o;
break;
}
case LUA_TPROTO: {
gco2p(o)->gclist = g->gray;
g->gray = o;
break;
}
default: lua_assert(0);
}
}
static void marktmu (global_State *g) {
GCObject *u = g->tmudata;
if (u) {
do {
u = u->gch.next;
makewhite(g, u); /* may be marked, if left from previous GC */
reallymarkobject(g, u);
} while (u != g->tmudata);
}
}
/* move `dead' udata that need finalization to list `tmudata' */
size_t luaC_separateudata (lua_State *L, int all) {
global_State *g = G(L);
size_t deadmem = 0;
GCObject **p = &g->mainthread->next;
GCObject *curr;
while ((curr = *p) != NULL) {
if (!(iswhite(curr) || all) || isfinalized(gco2u(curr)))
p = &curr->gch.next; /* don't bother with them */
else if (fasttm(L, gco2u(curr)->metatable, TM_GC) == NULL) {
markfinalized(gco2u(curr)); /* don't need finalization */
p = &curr->gch.next;
}
else { /* must call its gc method */
deadmem += sizeudata(gco2u(curr));
markfinalized(gco2u(curr));
*p = curr->gch.next;
/* link `curr' at the end of `tmudata' list */
if (g->tmudata == NULL) /* list is empty? */
g->tmudata = curr->gch.next = curr; /* creates a circular list */
else {
curr->gch.next = g->tmudata->gch.next;
g->tmudata->gch.next = curr;
g->tmudata = curr;
}
}
}
return deadmem;
}
static int traversetable (global_State *g, Table *h) {
int i;
int weakkey = 0;
int weakvalue = 0;
const TValue *mode;
if (h->metatable)
markobject(g, h->metatable);
mode = gfasttm(g, h->metatable, TM_MODE);
if (mode && ttisstring(mode)) { /* is there a weak mode? */
weakkey = (strchr(svalue(mode), 'k') != NULL);
weakvalue = (strchr(svalue(mode), 'v') != NULL);
if (weakkey || weakvalue) { /* is really weak? */
h->marked &= ~(KEYWEAK | VALUEWEAK); /* clear bits */
h->marked |= cast_byte((weakkey << KEYWEAKBIT) |
(weakvalue << VALUEWEAKBIT));
h->gclist = g->weak; /* must be cleared after GC, ... */
g->weak = obj2gco(h); /* ... so put in the appropriate list */
}
}
if (weakkey && weakvalue) return 1;
if (!weakvalue) {
i = h->sizearray;
while (i--)
markvalue(g, &h->array[i]);
}
i = sizenode(h);
while (i--) {
Node *n = gnode(h, i);
lua_assert(ttype(gkey(n)) != LUA_TDEADKEY || ttisnil(gval(n)));
if (ttisnil(gval(n)))
removeentry(n); /* remove empty entries */
else {
lua_assert(!ttisnil(gkey(n)));
if (!weakkey) markvalue(g, gkey(n));
if (!weakvalue) markvalue(g, gval(n));
}
}
return weakkey || weakvalue;
}
/*
** All marks are conditional because a GC may happen while the
** prototype is still being created
*/
static void traverseproto (global_State *g, Proto *f) {
int i;
if (f->source) stringmark(f->source);
for (i=0; i<f->sizek; i++) /* mark literals */
markvalue(g, &f->k[i]);
for (i=0; i<f->sizeupvalues; i++) { /* mark upvalue names */
if (f->upvalues[i])
stringmark(f->upvalues[i]);
}
for (i=0; i<f->sizep; i++) { /* mark nested protos */
if (f->p[i])
markobject(g, f->p[i]);
}
for (i=0; i<f->sizelocvars; i++) { /* mark local-variable names */
if (f->locvars[i].varname)
stringmark(f->locvars[i].varname);
}
}
static void traverseclosure (global_State *g, Closure *cl) {
markobject(g, cl->c.env);
if (cl->c.isC) {
int i;
for (i=0; i<cl->c.nupvalues; i++) /* mark its upvalues */
markvalue(g, &cl->c.upvalue[i]);
}
else {
int i;
lua_assert(cl->l.nupvalues == cl->l.p->nups);
markobject(g, cl->l.p);
for (i=0; i<cl->l.nupvalues; i++) /* mark its upvalues */
markobject(g, cl->l.upvals[i]);
}
}
static void checkstacksizes (lua_State *L, StkId max) {
int ci_used = cast_int(L->ci - L->base_ci); /* number of `ci' in use */
int s_used = cast_int(max - L->stack); /* part of stack in use */
if (L->size_ci > LUAI_MAXCALLS) /* handling overflow? */
return; /* do not touch the stacks */
if (4*ci_used < L->size_ci && 2*BASIC_CI_SIZE < L->size_ci)
luaD_reallocCI(L, L->size_ci/2); /* still big enough... */
condhardstacktests(luaD_reallocCI(L, ci_used + 1));
if (4*s_used < L->stacksize &&
2*(BASIC_STACK_SIZE+EXTRA_STACK) < L->stacksize)
luaD_reallocstack(L, L->stacksize/2); /* still big enough... */
condhardstacktests(luaD_reallocstack(L, s_used));
}
static void traversestack (global_State *g, lua_State *l) {
StkId o, lim;
CallInfo *ci;
markvalue(g, gt(l));
lim = l->top;
for (ci = l->base_ci; ci <= l->ci; ci++) {
lua_assert(ci->top <= l->stack_last);
if (lim < ci->top) lim = ci->top;
}
for (o = l->stack; o < l->top; o++)
markvalue(g, o);
for (; o <= lim; o++)
setnilvalue(o);
checkstacksizes(l, lim);
}
/*
** traverse one gray object, turning it to black.
** Returns `quantity' traversed.
*/
static l_mem propagatemark (global_State *g) {
GCObject *o = g->gray;
lua_assert(isgray(o));
gray2black(o);
switch (o->gch.tt) {
case LUA_TTABLE: {
Table *h = gco2h(o);
g->gray = h->gclist;
if (traversetable(g, h)) /* table is weak? */
black2gray(o); /* keep it gray */
return sizeof(Table) + sizeof(TValue) * h->sizearray +
sizeof(Node) * sizenode(h);
}
case LUA_TFUNCTION: {
Closure *cl = gco2cl(o);
g->gray = cl->c.gclist;
traverseclosure(g, cl);
return (cl->c.isC) ? sizeCclosure(cl->c.nupvalues) :
sizeLclosure(cl->l.nupvalues);
}
case LUA_TTHREAD: {
lua_State *th = gco2th(o);
g->gray = th->gclist;
th->gclist = g->grayagain;
g->grayagain = o;
black2gray(o);
traversestack(g, th);
return sizeof(lua_State) + sizeof(TValue) * th->stacksize +
sizeof(CallInfo) * th->size_ci;
}
case LUA_TPROTO: {
Proto *p = gco2p(o);
g->gray = p->gclist;
traverseproto(g, p);
return sizeof(Proto) + sizeof(Instruction) * p->sizecode +
sizeof(Proto *) * p->sizep +
sizeof(TValue) * p->sizek +
sizeof(int) * p->sizelineinfo +
sizeof(LocVar) * p->sizelocvars +
sizeof(TString *) * p->sizeupvalues;
}
default: lua_assert(0); return 0;
}
}
static size_t propagateall (global_State *g) {
size_t m = 0;
while (g->gray) m += propagatemark(g);
return m;
}
/*
** The next function tells whether a key or value can be cleared from
** a weak table. Non-collectable objects are never removed from weak
** tables. Strings behave as `values', so are never removed too. for
** other objects: if really collected, cannot keep them; for userdata
** being finalized, keep them in keys, but not in values
*/
static int iscleared (const TValue *o, int iskey) {
if (!iscollectable(o)) return 0;
if (ttisstring(o)) {
stringmark(rawtsvalue(o)); /* strings are `values', so are never weak */
return 0;
}
return iswhite(gcvalue(o)) ||
(ttisuserdata(o) && (!iskey && isfinalized(uvalue(o))));
}
/*
** clear collected entries from weaktables
*/
static void cleartable (GCObject *l) {
while (l) {
Table *h = gco2h(l);
int i = h->sizearray;
lua_assert(testbit(h->marked, VALUEWEAKBIT) ||
testbit(h->marked, KEYWEAKBIT));
if (testbit(h->marked, VALUEWEAKBIT)) {
while (i--) {
TValue *o = &h->array[i];
if (iscleared(o, 0)) /* value was collected? */
setnilvalue(o); /* remove value */
}
}
i = sizenode(h);
while (i--) {
Node *n = gnode(h, i);
if (!ttisnil(gval(n)) && /* non-empty entry? */
(iscleared(key2tval(n), 1) || iscleared(gval(n), 0))) {
setnilvalue(gval(n)); /* remove value ... */
removeentry(n); /* remove entry from table */
}
}
l = h->gclist;
}
}
static void freeobj (lua_State *L, GCObject *o) {
switch (o->gch.tt) {
case LUA_TPROTO: luaF_freeproto(L, gco2p(o)); break;
case LUA_TFUNCTION: luaF_freeclosure(L, gco2cl(o)); break;
case LUA_TUPVAL: luaF_freeupval(L, gco2uv(o)); break;
case LUA_TTABLE: luaH_free(L, gco2h(o)); break;
case LUA_TTHREAD: {
lua_assert(gco2th(o) != L && gco2th(o) != G(L)->mainthread);
luaE_freethread(L, gco2th(o));
break;
}
case LUA_TSTRING: {
G(L)->strt.nuse--;
luaM_freemem(L, o, sizestring(gco2ts(o)));
break;
}
case LUA_TUSERDATA: {
luaM_freemem(L, o, sizeudata(gco2u(o)));
break;
}
default: lua_assert(0);
}
}
#define sweepwholelist(L,p) sweeplist(L,p,MAX_LUMEM)
static GCObject **sweeplist (lua_State *L, GCObject **p, lu_mem count) {
GCObject *curr;
global_State *g = G(L);
int deadmask = otherwhite(g);
while ((curr = *p) != NULL && count-- > 0) {
if (curr->gch.tt == LUA_TTHREAD) /* sweep open upvalues of each thread */
sweepwholelist(L, &gco2th(curr)->openupval);
if ((curr->gch.marked ^ WHITEBITS) & deadmask) { /* not dead? */
lua_assert(!isdead(g, curr) || testbit(curr->gch.marked, FIXEDBIT));
makewhite(g, curr); /* make it white (for next cycle) */
p = &curr->gch.next;
}
else { /* must erase `curr' */
lua_assert(isdead(g, curr) || deadmask == bitmask(SFIXEDBIT));
*p = curr->gch.next;
if (curr == g->rootgc) /* is the first element of the list? */
g->rootgc = curr->gch.next; /* adjust first */
freeobj(L, curr);
}
}
return p;
}
static void checkSizes (lua_State *L) {
global_State *g = G(L);
/* check size of string hash */
if (g->strt.nuse < cast(lu_int32, g->strt.size/4) &&
g->strt.size > MINSTRTABSIZE*2)
luaS_resize(L, g->strt.size/2); /* table is too big */
/* check size of buffer */
if (luaZ_sizebuffer(&g->buff) > LUA_MINBUFFER*2) { /* buffer too big? */
size_t newsize = luaZ_sizebuffer(&g->buff) / 2;
luaZ_resizebuffer(L, &g->buff, newsize);
}
}
static void GCTM (lua_State *L) {
global_State *g = G(L);
GCObject *o = g->tmudata->gch.next; /* get first element */
Udata *udata = rawgco2u(o);
const TValue *tm;
/* remove udata from `tmudata' */
if (o == g->tmudata) /* last element? */
g->tmudata = NULL;
else
g->tmudata->gch.next = udata->uv.next;
udata->uv.next = g->mainthread->next; /* return it to `root' list */
g->mainthread->next = o;
makewhite(g, o);
tm = fasttm(L, udata->uv.metatable, TM_GC);
if (tm != NULL) {
lu_byte oldah = L->allowhook;
lu_mem oldt = g->GCthreshold;
L->allowhook = 0; /* stop debug hooks during GC tag method */
g->GCthreshold = 2*g->totalbytes; /* avoid GC steps */
setobj2s(L, L->top, tm);
setuvalue(L, L->top+1, udata);
L->top += 2;
luaD_call(L, L->top - 2, 0);
L->allowhook = oldah; /* restore hooks */
g->GCthreshold = oldt; /* restore threshold */
}
}
/*
** Call all GC tag methods
*/
void luaC_callGCTM (lua_State *L) {
while (G(L)->tmudata)
GCTM(L);
}
void luaC_freeall (lua_State *L) {
global_State *g = G(L);
int i;
g->currentwhite = WHITEBITS | bitmask(SFIXEDBIT); /* mask to collect all elements */
sweepwholelist(L, &g->rootgc);
for (i = 0; i < g->strt.size; i++) /* free all string lists */
sweepwholelist(L, &g->strt.hash[i]);
}
static void markmt (global_State *g) {
int i;
for (i=0; i<NUM_TAGS; i++)
if (g->mt[i]) markobject(g, g->mt[i]);
}
/* mark root set */
static void markroot (lua_State *L) {
global_State *g = G(L);
g->gray = NULL;
g->grayagain = NULL;
g->weak = NULL;
markobject(g, g->mainthread);
/* make global table be traversed before main stack */
markvalue(g, gt(g->mainthread));
markvalue(g, registry(L));
markmt(g);
g->gcstate = GCSpropagate;
}
static void remarkupvals (global_State *g) {
UpVal *uv;
for (uv = g->uvhead.u.l.next; uv != &g->uvhead; uv = uv->u.l.next) {
lua_assert(uv->u.l.next->u.l.prev == uv && uv->u.l.prev->u.l.next == uv);
if (isgray(obj2gco(uv)))
markvalue(g, uv->v);
}
}
static void atomic (lua_State *L) {
global_State *g = G(L);
size_t udsize; /* total size of userdata to be finalized */
/* remark occasional upvalues of (maybe) dead threads */
remarkupvals(g);
/* traverse objects cautch by write barrier and by 'remarkupvals' */
propagateall(g);
/* remark weak tables */
g->gray = g->weak;
g->weak = NULL;
lua_assert(!iswhite(obj2gco(g->mainthread)));
markobject(g, L); /* mark running thread */
markmt(g); /* mark basic metatables (again) */
propagateall(g);
/* remark gray again */
g->gray = g->grayagain;
g->grayagain = NULL;
propagateall(g);
udsize = luaC_separateudata(L, 0); /* separate userdata to be finalized */
marktmu(g); /* mark `preserved' userdata */
udsize += propagateall(g); /* remark, to propagate `preserveness' */
cleartable(g->weak); /* remove collected objects from weak tables */
/* flip current white */
g->currentwhite = cast_byte(otherwhite(g));
g->sweepstrgc = 0;
g->sweepgc = &g->rootgc;
g->gcstate = GCSsweepstring;
g->estimate = g->totalbytes - udsize; /* first estimate */
}
static l_mem singlestep (lua_State *L) {
global_State *g = G(L);
/*lua_checkmemory(L);*/
switch (g->gcstate) {
case GCSpause: {
markroot(L); /* start a new collection */
return 0;
}
case GCSpropagate: {
if (g->gray)
return propagatemark(g);
else { /* no more `gray' objects */
atomic(L); /* finish mark phase */
return 0;
}
}
case GCSsweepstring: {
lu_mem old = g->totalbytes;
sweepwholelist(L, &g->strt.hash[g->sweepstrgc++]);
if (g->sweepstrgc >= g->strt.size) /* nothing more to sweep? */
g->gcstate = GCSsweep; /* end sweep-string phase */
lua_assert(old >= g->totalbytes);
g->estimate -= old - g->totalbytes;
return GCSWEEPCOST;
}
case GCSsweep: {
lu_mem old = g->totalbytes;
g->sweepgc = sweeplist(L, g->sweepgc, GCSWEEPMAX);
if (*g->sweepgc == NULL) { /* nothing more to sweep? */
checkSizes(L);
g->gcstate = GCSfinalize; /* end sweep phase */
}
lua_assert(old >= g->totalbytes);
g->estimate -= old - g->totalbytes;
return GCSWEEPMAX*GCSWEEPCOST;
}
case GCSfinalize: {
if (g->tmudata) {
GCTM(L);
if (g->estimate > GCFINALIZECOST)
g->estimate -= GCFINALIZECOST;
return GCFINALIZECOST;
}
else {
g->gcstate = GCSpause; /* end collection */
g->gcdept = 0;
return 0;
}
}
default: lua_assert(0); return 0;
}
}
void luaC_step (lua_State *L) {
global_State *g = G(L);
l_mem lim = (GCSTEPSIZE/100) * g->gcstepmul;
if (lim == 0)
lim = (MAX_LUMEM-1)/2; /* no limit */
g->gcdept += g->totalbytes - g->GCthreshold;
do {
lim -= singlestep(L);
if (g->gcstate == GCSpause)
break;
} while (lim > 0);
if (g->gcstate != GCSpause) {
if (g->gcdept < GCSTEPSIZE)
g->GCthreshold = g->totalbytes + GCSTEPSIZE; /* - lim/g->gcstepmul;*/
else {
g->gcdept -= GCSTEPSIZE;
g->GCthreshold = g->totalbytes;
}
}
else {
lua_assert(g->totalbytes >= g->estimate);
setthreshold(g);
}
}
void luaC_fullgc (lua_State *L) {
global_State *g = G(L);
if (g->gcstate <= GCSpropagate) {
/* reset sweep marks to sweep all elements (returning them to white) */
g->sweepstrgc = 0;
g->sweepgc = &g->rootgc;
/* reset other collector lists */
g->gray = NULL;
g->grayagain = NULL;
g->weak = NULL;
g->gcstate = GCSsweepstring;
}
lua_assert(g->gcstate != GCSpause && g->gcstate != GCSpropagate);
/* finish any pending sweep phase */
while (g->gcstate != GCSfinalize) {
lua_assert(g->gcstate == GCSsweepstring || g->gcstate == GCSsweep);
singlestep(L);
}
markroot(L);
while (g->gcstate != GCSpause) {
singlestep(L);
}
setthreshold(g);
}
void luaC_barrierf (lua_State *L, GCObject *o, GCObject *v) {
global_State *g = G(L);
lua_assert(isblack(o) && iswhite(v) && !isdead(g, v) && !isdead(g, o));
lua_assert(g->gcstate != GCSfinalize && g->gcstate != GCSpause);
lua_assert(ttype(&o->gch) != LUA_TTABLE);
/* must keep invariant? */
if (g->gcstate == GCSpropagate)
reallymarkobject(g, v); /* restore invariant */
else /* don't mind */
makewhite(g, o); /* mark as white just to avoid other barriers */
}
void luaC_barrierback (lua_State *L, Table *t) {
global_State *g = G(L);
GCObject *o = obj2gco(t);
lua_assert(isblack(o) && !isdead(g, o));
lua_assert(g->gcstate != GCSfinalize && g->gcstate != GCSpause);
black2gray(o); /* make table gray (again) */
t->gclist = g->grayagain;
g->grayagain = o;
}
void luaC_link (lua_State *L, GCObject *o, lu_byte tt) {
global_State *g = G(L);
o->gch.next = g->rootgc;
g->rootgc = o;
o->gch.marked = luaC_white(g);
o->gch.tt = tt;
}
void luaC_linkupval (lua_State *L, UpVal *uv) {
global_State *g = G(L);
GCObject *o = obj2gco(uv);
o->gch.next = g->rootgc; /* link upvalue into `rootgc' list */
g->rootgc = o;
if (isgray(o)) {
if (g->gcstate == GCSpropagate) {
gray2black(o); /* closed upvalues need barrier */
luaC_barrier(L, uv, uv->v);
}
else { /* sweep phase: sweep it (turning it into white) */
makewhite(g, o);
lua_assert(g->gcstate != GCSfinalize && g->gcstate != GCSpause);
}
}
}

38
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View File

@ -1,38 +0,0 @@
/*
** $Id: linit.c,v 1.14.1.1 2007/12/27 13:02:25 roberto Exp $
** Initialization of libraries for lua.c
** See Copyright Notice in lua.h
*/
#define linit_c
#define LUA_LIB
#include "lua.h"
#include "lualib.h"
#include "lauxlib.h"
static const luaL_Reg lualibs[] = {
{"", luaopen_base},
{LUA_LOADLIBNAME, luaopen_package},
{LUA_TABLIBNAME, luaopen_table},
{LUA_IOLIBNAME, luaopen_io},
{LUA_OSLIBNAME, luaopen_os},
{LUA_STRLIBNAME, luaopen_string},
{LUA_MATHLIBNAME, luaopen_math},
{LUA_DBLIBNAME, luaopen_debug},
{NULL, NULL}
};
LUALIB_API void luaL_openlibs (lua_State *L) {
const luaL_Reg *lib = lualibs;
for (; lib->func; lib++) {
lua_pushcfunction(L, lib->func);
lua_pushstring(L, lib->name);
lua_call(L, 1, 0);
}
}

553
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View File

@ -1,553 +0,0 @@
/*
** $Id: liolib.c,v 2.73.1.3 2008/01/18 17:47:43 roberto Exp $
** Standard I/O (and system) library
** See Copyright Notice in lua.h
*/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define liolib_c
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
#define IO_INPUT 1
#define IO_OUTPUT 2
static const char *const fnames[] = {"input", "output"};
static int pushresult (lua_State *L, int i, const char *filename) {
int en = errno; /* calls to Lua API may change this value */
if (i) {
lua_pushboolean(L, 1);
return 1;
}
else {
lua_pushnil(L);
if (filename)
lua_pushfstring(L, "%s: %s", filename, strerror(en));
else
lua_pushfstring(L, "%s", strerror(en));
lua_pushinteger(L, en);
return 3;
}
}
static void fileerror (lua_State *L, int arg, const char *filename) {
lua_pushfstring(L, "%s: %s", filename, strerror(errno));
luaL_argerror(L, arg, lua_tostring(L, -1));
}
#define tofilep(L) ((FILE **)luaL_checkudata(L, 1, LUA_FILEHANDLE))
static int io_type (lua_State *L) {
void *ud;
luaL_checkany(L, 1);
ud = lua_touserdata(L, 1);
lua_getfield(L, LUA_REGISTRYINDEX, LUA_FILEHANDLE);
if (ud == NULL || !lua_getmetatable(L, 1) || !lua_rawequal(L, -2, -1))
lua_pushnil(L); /* not a file */
else if (*((FILE **)ud) == NULL)
lua_pushliteral(L, "closed file");
else
lua_pushliteral(L, "file");
return 1;
}
static FILE *tofile (lua_State *L) {
FILE **f = tofilep(L);
if (*f == NULL)
luaL_error(L, "attempt to use a closed file");
return *f;
}
/*
** When creating file handles, always creates a `closed' file handle
** before opening the actual file; so, if there is a memory error, the
** file is not left opened.
*/
static FILE **newfile (lua_State *L) {
FILE **pf = (FILE **)lua_newuserdata(L, sizeof(FILE *));
*pf = NULL; /* file handle is currently `closed' */
luaL_getmetatable(L, LUA_FILEHANDLE);
lua_setmetatable(L, -2);
return pf;
}
/*
** function to (not) close the standard files stdin, stdout, and stderr
*/
static int io_noclose (lua_State *L) {
lua_pushnil(L);
lua_pushliteral(L, "cannot close standard file");
return 2;
}
/*
** function to close 'popen' files
*/
static int io_pclose (lua_State *L) {
FILE **p = tofilep(L);
int ok = lua_pclose(L, *p);
*p = NULL;
return pushresult(L, ok, NULL);
}
/*
** function to close regular files
*/
static int io_fclose (lua_State *L) {
FILE **p = tofilep(L);
int ok = (fclose(*p) == 0);
*p = NULL;
return pushresult(L, ok, NULL);
}
static int aux_close (lua_State *L) {
lua_getfenv(L, 1);
lua_getfield(L, -1, "__close");
return (lua_tocfunction(L, -1))(L);
}
static int io_close (lua_State *L) {
if (lua_isnone(L, 1))
lua_rawgeti(L, LUA_ENVIRONINDEX, IO_OUTPUT);
tofile(L); /* make sure argument is a file */
return aux_close(L);
}
static int io_gc (lua_State *L) {
FILE *f = *tofilep(L);
/* ignore closed files */
if (f != NULL)
aux_close(L);
return 0;
}
static int io_tostring (lua_State *L) {
FILE *f = *tofilep(L);
if (f == NULL)
lua_pushliteral(L, "file (closed)");
else
lua_pushfstring(L, "file (%p)", f);
return 1;
}
static int io_open (lua_State *L) {
const char *filename = luaL_checkstring(L, 1);
const char *mode = luaL_optstring(L, 2, "r");
FILE **pf = newfile(L);
*pf = fopen(filename, mode);
return (*pf == NULL) ? pushresult(L, 0, filename) : 1;
}
/*
** this function has a separated environment, which defines the
** correct __close for 'popen' files
*/
static int io_popen (lua_State *L) {
const char *filename = luaL_checkstring(L, 1);
const char *mode = luaL_optstring(L, 2, "r");
FILE **pf = newfile(L);
*pf = lua_popen(L, filename, mode);
return (*pf == NULL) ? pushresult(L, 0, filename) : 1;
}
static int io_tmpfile (lua_State *L) {
FILE **pf = newfile(L);
*pf = tmpfile();
return (*pf == NULL) ? pushresult(L, 0, NULL) : 1;
}
static FILE *getiofile (lua_State *L, int findex) {
FILE *f;
lua_rawgeti(L, LUA_ENVIRONINDEX, findex);
f = *(FILE **)lua_touserdata(L, -1);
if (f == NULL)
luaL_error(L, "standard %s file is closed", fnames[findex - 1]);
return f;
}
static int g_iofile (lua_State *L, int f, const char *mode) {
if (!lua_isnoneornil(L, 1)) {
const char *filename = lua_tostring(L, 1);
if (filename) {
FILE **pf = newfile(L);
*pf = fopen(filename, mode);
if (*pf == NULL)
fileerror(L, 1, filename);
}
else {
tofile(L); /* check that it's a valid file handle */
lua_pushvalue(L, 1);
}
lua_rawseti(L, LUA_ENVIRONINDEX, f);
}
/* return current value */
lua_rawgeti(L, LUA_ENVIRONINDEX, f);
return 1;
}
static int io_input (lua_State *L) {
return g_iofile(L, IO_INPUT, "r");
}
static int io_output (lua_State *L) {
return g_iofile(L, IO_OUTPUT, "w");
}
static int io_readline (lua_State *L);
static void aux_lines (lua_State *L, int idx, int toclose) {
lua_pushvalue(L, idx);
lua_pushboolean(L, toclose); /* close/not close file when finished */
lua_pushcclosure(L, io_readline, 2);
}
static int f_lines (lua_State *L) {
tofile(L); /* check that it's a valid file handle */
aux_lines(L, 1, 0);
return 1;
}
static int io_lines (lua_State *L) {
if (lua_isnoneornil(L, 1)) { /* no arguments? */
/* will iterate over default input */
lua_rawgeti(L, LUA_ENVIRONINDEX, IO_INPUT);
return f_lines(L);
}
else {
const char *filename = luaL_checkstring(L, 1);
FILE **pf = newfile(L);
*pf = fopen(filename, "r");
if (*pf == NULL)
fileerror(L, 1, filename);
aux_lines(L, lua_gettop(L), 1);
return 1;
}
}
/*
** {======================================================
** READ
** =======================================================
*/
static int read_number (lua_State *L, FILE *f) {
lua_Number d;
if (fscanf(f, LUA_NUMBER_SCAN, &d) == 1) {
lua_pushnumber(L, d);
return 1;
}
else return 0; /* read fails */
}
static int test_eof (lua_State *L, FILE *f) {
int c = getc(f);
ungetc(c, f);
lua_pushlstring(L, NULL, 0);
return (c != EOF);
}
static int read_line (lua_State *L, FILE *f) {
luaL_Buffer b;
luaL_buffinit(L, &b);
for (;;) {
size_t l;
char *p = luaL_prepbuffer(&b);
if (fgets(p, LUAL_BUFFERSIZE, f) == NULL) { /* eof? */
luaL_pushresult(&b); /* close buffer */
return (lua_objlen(L, -1) > 0); /* check whether read something */
}
l = strlen(p);
if (l == 0 || p[l-1] != '\n')
luaL_addsize(&b, l);
else {
luaL_addsize(&b, l - 1); /* do not include `eol' */
luaL_pushresult(&b); /* close buffer */
return 1; /* read at least an `eol' */
}
}
}
static int read_chars (lua_State *L, FILE *f, size_t n) {
size_t rlen; /* how much to read */
size_t nr; /* number of chars actually read */
luaL_Buffer b;
luaL_buffinit(L, &b);
rlen = LUAL_BUFFERSIZE; /* try to read that much each time */
do {
char *p = luaL_prepbuffer(&b);
if (rlen > n) rlen = n; /* cannot read more than asked */
nr = fread(p, sizeof(char), rlen, f);
luaL_addsize(&b, nr);
n -= nr; /* still have to read `n' chars */
} while (n > 0 && nr == rlen); /* until end of count or eof */
luaL_pushresult(&b); /* close buffer */
return (n == 0 || lua_objlen(L, -1) > 0);
}
static int g_read (lua_State *L, FILE *f, int first) {
int nargs = lua_gettop(L) - 1;
int success;
int n;
clearerr(f);
if (nargs == 0) { /* no arguments? */
success = read_line(L, f);
n = first+1; /* to return 1 result */
}
else { /* ensure stack space for all results and for auxlib's buffer */
luaL_checkstack(L, nargs+LUA_MINSTACK, "too many arguments");
success = 1;
for (n = first; nargs-- && success; n++) {
if (lua_type(L, n) == LUA_TNUMBER) {
size_t l = (size_t)lua_tointeger(L, n);
success = (l == 0) ? test_eof(L, f) : read_chars(L, f, l);
}
else {
const char *p = lua_tostring(L, n);
luaL_argcheck(L, p && p[0] == '*', n, "invalid option");
switch (p[1]) {
case 'n': /* number */
success = read_number(L, f);
break;
case 'l': /* line */
success = read_line(L, f);
break;
case 'a': /* file */
read_chars(L, f, ~((size_t)0)); /* read MAX_SIZE_T chars */
success = 1; /* always success */
break;
default:
return luaL_argerror(L, n, "invalid format");
}
}
}
}
if (ferror(f))
return pushresult(L, 0, NULL);
if (!success) {
lua_pop(L, 1); /* remove last result */
lua_pushnil(L); /* push nil instead */
}
return n - first;
}
static int io_read (lua_State *L) {
return g_read(L, getiofile(L, IO_INPUT), 1);
}
static int f_read (lua_State *L) {
return g_read(L, tofile(L), 2);
}
static int io_readline (lua_State *L) {
FILE *f = *(FILE **)lua_touserdata(L, lua_upvalueindex(1));
int sucess;
if (f == NULL) /* file is already closed? */
luaL_error(L, "file is already closed");
sucess = read_line(L, f);
if (ferror(f))
return luaL_error(L, "%s", strerror(errno));
if (sucess) return 1;
else { /* EOF */
if (lua_toboolean(L, lua_upvalueindex(2))) { /* generator created file? */
lua_settop(L, 0);
lua_pushvalue(L, lua_upvalueindex(1));
aux_close(L); /* close it */
}
return 0;
}
}
/* }====================================================== */
static int g_write (lua_State *L, FILE *f, int arg) {
int nargs = lua_gettop(L) - 1;
int status = 1;
for (; nargs--; arg++) {
if (lua_type(L, arg) == LUA_TNUMBER) {
/* optimization: could be done exactly as for strings */
status = status &&
fprintf(f, LUA_NUMBER_FMT, lua_tonumber(L, arg)) > 0;
}
else {
size_t l;
const char *s = luaL_checklstring(L, arg, &l);
status = status && (fwrite(s, sizeof(char), l, f) == l);
}
}
return pushresult(L, status, NULL);
}
static int io_write (lua_State *L) {
return g_write(L, getiofile(L, IO_OUTPUT), 1);
}
static int f_write (lua_State *L) {
return g_write(L, tofile(L), 2);
}
static int f_seek (lua_State *L) {
static const int mode[] = {SEEK_SET, SEEK_CUR, SEEK_END};
static const char *const modenames[] = {"set", "cur", "end", NULL};
FILE *f = tofile(L);
int op = luaL_checkoption(L, 2, "cur", modenames);
long offset = luaL_optlong(L, 3, 0);
op = fseek(f, offset, mode[op]);
if (op)
return pushresult(L, 0, NULL); /* error */
else {
lua_pushinteger(L, ftell(f));
return 1;
}
}
static int f_setvbuf (lua_State *L) {
static const int mode[] = {_IONBF, _IOFBF, _IOLBF};
static const char *const modenames[] = {"no", "full", "line", NULL};
FILE *f = tofile(L);
int op = luaL_checkoption(L, 2, NULL, modenames);
lua_Integer sz = luaL_optinteger(L, 3, LUAL_BUFFERSIZE);
int res = setvbuf(f, NULL, mode[op], sz);
return pushresult(L, res == 0, NULL);
}
static int io_flush (lua_State *L) {
return pushresult(L, fflush(getiofile(L, IO_OUTPUT)) == 0, NULL);
}
static int f_flush (lua_State *L) {
return pushresult(L, fflush(tofile(L)) == 0, NULL);
}
static const luaL_Reg iolib[] = {
{"close", io_close},
{"flush", io_flush},
{"input", io_input},
{"lines", io_lines},
{"open", io_open},
{"output", io_output},
{"popen", io_popen},
{"read", io_read},
{"tmpfile", io_tmpfile},
{"type", io_type},
{"write", io_write},
{NULL, NULL}
};
static const luaL_Reg flib[] = {
{"close", io_close},
{"flush", f_flush},
{"lines", f_lines},
{"read", f_read},
{"seek", f_seek},
{"setvbuf", f_setvbuf},
{"write", f_write},
{"__gc", io_gc},
{"__tostring", io_tostring},
{NULL, NULL}
};
static void createmeta (lua_State *L) {
luaL_newmetatable(L, LUA_FILEHANDLE); /* create metatable for file handles */
lua_pushvalue(L, -1); /* push metatable */
lua_setfield(L, -2, "__index"); /* metatable.__index = metatable */
luaL_register(L, NULL, flib); /* file methods */
}
static void createstdfile (lua_State *L, FILE *f, int k, const char *fname) {
*newfile(L) = f;
if (k > 0) {
lua_pushvalue(L, -1);
lua_rawseti(L, LUA_ENVIRONINDEX, k);
}
lua_pushvalue(L, -2); /* copy environment */
lua_setfenv(L, -2); /* set it */
lua_setfield(L, -3, fname);
}
static void newfenv (lua_State *L, lua_CFunction cls) {
lua_createtable(L, 0, 1);
lua_pushcfunction(L, cls);
lua_setfield(L, -2, "__close");
}
LUALIB_API int luaopen_io (lua_State *L) {
createmeta(L);
/* create (private) environment (with fields IO_INPUT, IO_OUTPUT, __close) */
newfenv(L, io_fclose);
lua_replace(L, LUA_ENVIRONINDEX);
/* open library */
luaL_register(L, LUA_IOLIBNAME, iolib);
/* create (and set) default files */
newfenv(L, io_noclose); /* close function for default files */
createstdfile(L, stdin, IO_INPUT, "stdin");
createstdfile(L, stdout, IO_OUTPUT, "stdout");
createstdfile(L, stderr, 0, "stderr");
lua_pop(L, 1); /* pop environment for default files */
lua_getfield(L, -1, "popen");
newfenv(L, io_pclose); /* create environment for 'popen' */
lua_setfenv(L, -2); /* set fenv for 'popen' */
lua_pop(L, 1); /* pop 'popen' */
return 1;
}

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/*
** $Id: llex.c,v 2.20.1.1 2007/12/27 13:02:25 roberto Exp $
** Lexical Analyzer
** See Copyright Notice in lua.h
*/
#include <ctype.h>
#include <locale.h>
#include <string.h>
#define llex_c
#define LUA_CORE
#include "lua.h"
#include "ldo.h"
#include "llex.h"
#include "lobject.h"
#include "lparser.h"
#include "lstate.h"
#include "lstring.h"
#include "ltable.h"
#include "lzio.h"
#define next(ls) (ls->current = zgetc(ls->z))
#define currIsNewline(ls) (ls->current == '\n' || ls->current == '\r')
/* ORDER RESERVED */
const char *const luaX_tokens [] = {
"and", "break", "do", "else", "elseif",
"end", "false", "for", "function", "if",
"in", "local", "nil", "not", "or", "repeat",
"return", "then", "true", "until", "while",
"..", "...", "==", ">=", "<=", "~=",
"<number>", "<name>", "<string>", "<eof>",
NULL
};
#define save_and_next(ls) (save(ls, ls->current), next(ls))
static void save (LexState *ls, int c) {
Mbuffer *b = ls->buff;
if (b->n + 1 > b->buffsize) {
size_t newsize;
if (b->buffsize >= MAX_SIZET/2)
luaX_lexerror(ls, "lexical element too long", 0);
newsize = b->buffsize * 2;
luaZ_resizebuffer(ls->L, b, newsize);
}
b->buffer[b->n++] = cast(char, c);
}
void luaX_init (lua_State *L) {
int i;
for (i=0; i<NUM_RESERVED; i++) {
TString *ts = luaS_new(L, luaX_tokens[i]);
luaS_fix(ts); /* reserved words are never collected */
lua_assert(strlen(luaX_tokens[i])+1 <= TOKEN_LEN);
ts->tsv.reserved = cast_byte(i+1); /* reserved word */
}
}
#define MAXSRC 80
const char *luaX_token2str (LexState *ls, int token) {
if (token < FIRST_RESERVED) {
lua_assert(token == cast(unsigned char, token));
return (iscntrl(token)) ? luaO_pushfstring(ls->L, "char(%d)", token) :
luaO_pushfstring(ls->L, "%c", token);
}
else
return luaX_tokens[token-FIRST_RESERVED];
}
static const char *txtToken (LexState *ls, int token) {
switch (token) {
case TK_NAME:
case TK_STRING:
case TK_NUMBER:
save(ls, '\0');
return luaZ_buffer(ls->buff);
default:
return luaX_token2str(ls, token);
}
}
void luaX_lexerror (LexState *ls, const char *msg, int token) {
char buff[MAXSRC];
luaO_chunkid(buff, getstr(ls->source), MAXSRC);
msg = luaO_pushfstring(ls->L, "%s:%d: %s", buff, ls->linenumber, msg);
if (token)
luaO_pushfstring(ls->L, "%s near " LUA_QS, msg, txtToken(ls, token));
luaD_throw(ls->L, LUA_ERRSYNTAX);
}
void luaX_syntaxerror (LexState *ls, const char *msg) {
luaX_lexerror(ls, msg, ls->t.token);
}
TString *luaX_newstring (LexState *ls, const char *str, size_t l) {
lua_State *L = ls->L;
TString *ts = luaS_newlstr(L, str, l);
TValue *o = luaH_setstr(L, ls->fs->h, ts); /* entry for `str' */
if (ttisnil(o))
setbvalue(o, 1); /* make sure `str' will not be collected */
return ts;
}
static void inclinenumber (LexState *ls) {
int old = ls->current;
lua_assert(currIsNewline(ls));
next(ls); /* skip `\n' or `\r' */
if (currIsNewline(ls) && ls->current != old)
next(ls); /* skip `\n\r' or `\r\n' */
if (++ls->linenumber >= MAX_INT)
luaX_syntaxerror(ls, "chunk has too many lines");
}
void luaX_setinput (lua_State *L, LexState *ls, ZIO *z, TString *source) {
ls->decpoint = '.';
ls->L = L;
ls->lookahead.token = TK_EOS; /* no look-ahead token */
ls->z = z;
ls->fs = NULL;
ls->linenumber = 1;
ls->lastline = 1;
ls->source = source;
luaZ_resizebuffer(ls->L, ls->buff, LUA_MINBUFFER); /* initialize buffer */
next(ls); /* read first char */
}
/*
** =======================================================
** LEXICAL ANALYZER
** =======================================================
*/
static int check_next (LexState *ls, const char *set) {
if (!strchr(set, ls->current))
return 0;
save_and_next(ls);
return 1;
}
static void buffreplace (LexState *ls, char from, char to) {
size_t n = luaZ_bufflen(ls->buff);
char *p = luaZ_buffer(ls->buff);
while (n--)
if (p[n] == from) p[n] = to;
}
static void trydecpoint (LexState *ls, SemInfo *seminfo) {
/* format error: try to update decimal point separator */
struct lconv *cv = localeconv();
char old = ls->decpoint;
ls->decpoint = (cv ? cv->decimal_point[0] : '.');
buffreplace(ls, old, ls->decpoint); /* try updated decimal separator */
if (!luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r)) {
/* format error with correct decimal point: no more options */
buffreplace(ls, ls->decpoint, '.'); /* undo change (for error message) */
luaX_lexerror(ls, "malformed number", TK_NUMBER);
}
}
/* LUA_NUMBER */
static void read_numeral (LexState *ls, SemInfo *seminfo) {
lua_assert(isdigit(ls->current));
do {
save_and_next(ls);
} while (isdigit(ls->current) || ls->current == '.');
if (check_next(ls, "Ee")) /* `E'? */
check_next(ls, "+-"); /* optional exponent sign */
while (isalnum(ls->current) || ls->current == '_')
save_and_next(ls);
save(ls, '\0');
buffreplace(ls, '.', ls->decpoint); /* follow locale for decimal point */
if (!luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r)) /* format error? */
trydecpoint(ls, seminfo); /* try to update decimal point separator */
}
static int skip_sep (LexState *ls) {
int count = 0;
int s = ls->current;
lua_assert(s == '[' || s == ']');
save_and_next(ls);
while (ls->current == '=') {
save_and_next(ls);
count++;
}
return (ls->current == s) ? count : (-count) - 1;
}
static void read_long_string (LexState *ls, SemInfo *seminfo, int sep) {
int cont = 0;
(void)(cont); /* avoid warnings when `cont' is not used */
save_and_next(ls); /* skip 2nd `[' */
if (currIsNewline(ls)) /* string starts with a newline? */
inclinenumber(ls); /* skip it */
for (;;) {
switch (ls->current) {
case EOZ:
luaX_lexerror(ls, (seminfo) ? "unfinished long string" :
"unfinished long comment", TK_EOS);
break; /* to avoid warnings */
#if defined(LUA_COMPAT_LSTR)
case '[': {
if (skip_sep(ls) == sep) {
save_and_next(ls); /* skip 2nd `[' */
cont++;
#if LUA_COMPAT_LSTR == 1
if (sep == 0)
luaX_lexerror(ls, "nesting of [[...]] is deprecated", '[');
#endif
}
break;
}
#endif
case ']': {
if (skip_sep(ls) == sep) {
save_and_next(ls); /* skip 2nd `]' */
#if defined(LUA_COMPAT_LSTR) && LUA_COMPAT_LSTR == 2
cont--;
if (sep == 0 && cont >= 0) break;
#endif
goto endloop;
}
break;
}
case '\n':
case '\r': {
save(ls, '\n');
inclinenumber(ls);
if (!seminfo) luaZ_resetbuffer(ls->buff); /* avoid wasting space */
break;
}
default: {
if (seminfo) save_and_next(ls);
else next(ls);
}
}
} endloop:
if (seminfo)
seminfo->ts = luaX_newstring(ls, luaZ_buffer(ls->buff) + (2 + sep),
luaZ_bufflen(ls->buff) - 2*(2 + sep));
}
static void read_string (LexState *ls, int del, SemInfo *seminfo) {
save_and_next(ls);
while (ls->current != del) {
switch (ls->current) {
case EOZ:
luaX_lexerror(ls, "unfinished string", TK_EOS);
continue; /* to avoid warnings */
case '\n':
case '\r':
luaX_lexerror(ls, "unfinished string", TK_STRING);
continue; /* to avoid warnings */
case '\\': {
int c;
next(ls); /* do not save the `\' */
switch (ls->current) {
case 'a': c = '\a'; break;
case 'b': c = '\b'; break;
case 'f': c = '\f'; break;
case 'n': c = '\n'; break;
case 'r': c = '\r'; break;
case 't': c = '\t'; break;
case 'v': c = '\v'; break;
case '\n': /* go through */
case '\r': save(ls, '\n'); inclinenumber(ls); continue;
case EOZ: continue; /* will raise an error next loop */
default: {
if (!isdigit(ls->current))
save_and_next(ls); /* handles \\, \", \', and \? */
else { /* \xxx */
int i = 0;
c = 0;
do {
c = 10*c + (ls->current-'0');
next(ls);
} while (++i<3 && isdigit(ls->current));
if (c > UCHAR_MAX)
luaX_lexerror(ls, "escape sequence too large", TK_STRING);
save(ls, c);
}
continue;
}
}
save(ls, c);
next(ls);
continue;
}
default:
save_and_next(ls);
}
}
save_and_next(ls); /* skip delimiter */
seminfo->ts = luaX_newstring(ls, luaZ_buffer(ls->buff) + 1,
luaZ_bufflen(ls->buff) - 2);
}
static int llex (LexState *ls, SemInfo *seminfo) {
luaZ_resetbuffer(ls->buff);
for (;;) {
switch (ls->current) {
case '\n':
case '\r': {
inclinenumber(ls);
continue;
}
case '-': {
next(ls);
if (ls->current != '-') return '-';
/* else is a comment */
next(ls);
if (ls->current == '[') {
int sep = skip_sep(ls);
luaZ_resetbuffer(ls->buff); /* `skip_sep' may dirty the buffer */
if (sep >= 0) {
read_long_string(ls, NULL, sep); /* long comment */
luaZ_resetbuffer(ls->buff);
continue;
}
}
/* else short comment */
while (!currIsNewline(ls) && ls->current != EOZ)
next(ls);
continue;
}
case '[': {
int sep = skip_sep(ls);
if (sep >= 0) {
read_long_string(ls, seminfo, sep);
return TK_STRING;
}
else if (sep == -1) return '[';
else luaX_lexerror(ls, "invalid long string delimiter", TK_STRING);
}
case '=': {
next(ls);
if (ls->current != '=') return '=';
else { next(ls); return TK_EQ; }
}
case '<': {
next(ls);
if (ls->current != '=') return '<';
else { next(ls); return TK_LE; }
}
case '>': {
next(ls);
if (ls->current != '=') return '>';
else { next(ls); return TK_GE; }
}
case '~': {
next(ls);
if (ls->current != '=') return '~';
else { next(ls); return TK_NE; }
}
case '"':
case '\'': {
read_string(ls, ls->current, seminfo);
return TK_STRING;
}
case '.': {
save_and_next(ls);
if (check_next(ls, ".")) {
if (check_next(ls, "."))
return TK_DOTS; /* ... */
else return TK_CONCAT; /* .. */
}
else if (!isdigit(ls->current)) return '.';
else {
read_numeral(ls, seminfo);
return TK_NUMBER;
}
}
case EOZ: {
return TK_EOS;
}
default: {
if (isspace(ls->current)) {
lua_assert(!currIsNewline(ls));
next(ls);
continue;
}
else if (isdigit(ls->current)) {
read_numeral(ls, seminfo);
return TK_NUMBER;
}
else if (isalpha(ls->current) || ls->current == '_') {
/* identifier or reserved word */
TString *ts;
do {
save_and_next(ls);
} while (isalnum(ls->current) || ls->current == '_');
ts = luaX_newstring(ls, luaZ_buffer(ls->buff),
luaZ_bufflen(ls->buff));
if (ts->tsv.reserved > 0) /* reserved word? */
return ts->tsv.reserved - 1 + FIRST_RESERVED;
else {
seminfo->ts = ts;
return TK_NAME;
}
}
else {
int c = ls->current;
next(ls);
return c; /* single-char tokens (+ - / ...) */
}
}
}
}
}
void luaX_next (LexState *ls) {
ls->lastline = ls->linenumber;
if (ls->lookahead.token != TK_EOS) { /* is there a look-ahead token? */
ls->t = ls->lookahead; /* use this one */
ls->lookahead.token = TK_EOS; /* and discharge it */
}
else
ls->t.token = llex(ls, &ls->t.seminfo); /* read next token */
}
void luaX_lookahead (LexState *ls) {
lua_assert(ls->lookahead.token == TK_EOS);
ls->lookahead.token = llex(ls, &ls->lookahead.seminfo);
}

263
desmume/src/windows/lua/lua-5.1.4/src/lmathlib.c
View File

@ -1,263 +0,0 @@
/*
** $Id: lmathlib.c,v 1.67.1.1 2007/12/27 13:02:25 roberto Exp $
** Standard mathematical library
** See Copyright Notice in lua.h
*/
#include <stdlib.h>
#include <math.h>
#define lmathlib_c
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
#undef PI
#define PI (3.14159265358979323846)
#define RADIANS_PER_DEGREE (PI/180.0)
static int math_abs (lua_State *L) {
lua_pushnumber(L, fabs(luaL_checknumber(L, 1)));
return 1;
}
static int math_sin (lua_State *L) {
lua_pushnumber(L, sin(luaL_checknumber(L, 1)));
return 1;
}
static int math_sinh (lua_State *L) {
lua_pushnumber(L, sinh(luaL_checknumber(L, 1)));
return 1;
}
static int math_cos (lua_State *L) {
lua_pushnumber(L, cos(luaL_checknumber(L, 1)));
return 1;
}
static int math_cosh (lua_State *L) {
lua_pushnumber(L, cosh(luaL_checknumber(L, 1)));
return 1;
}
static int math_tan (lua_State *L) {
lua_pushnumber(L, tan(luaL_checknumber(L, 1)));
return 1;
}
static int math_tanh (lua_State *L) {
lua_pushnumber(L, tanh(luaL_checknumber(L, 1)));
return 1;
}
static int math_asin (lua_State *L) {
lua_pushnumber(L, asin(luaL_checknumber(L, 1)));
return 1;
}
static int math_acos (lua_State *L) {
lua_pushnumber(L, acos(luaL_checknumber(L, 1)));
return 1;
}
static int math_atan (lua_State *L) {
lua_pushnumber(L, atan(luaL_checknumber(L, 1)));
return 1;
}
static int math_atan2 (lua_State *L) {
lua_pushnumber(L, atan2(luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
return 1;
}
static int math_ceil (lua_State *L) {
lua_pushnumber(L, ceil(luaL_checknumber(L, 1)));
return 1;
}
static int math_floor (lua_State *L) {
lua_pushnumber(L, floor(luaL_checknumber(L, 1)));
return 1;
}
static int math_fmod (lua_State *L) {
lua_pushnumber(L, fmod(luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
return 1;
}
static int math_modf (lua_State *L) {
double ip;
double fp = modf(luaL_checknumber(L, 1), &ip);
lua_pushnumber(L, ip);
lua_pushnumber(L, fp);
return 2;
}
static int math_sqrt (lua_State *L) {
lua_pushnumber(L, sqrt(luaL_checknumber(L, 1)));
return 1;
}
static int math_pow (lua_State *L) {
lua_pushnumber(L, pow(luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
return 1;
}
static int math_log (lua_State *L) {
lua_pushnumber(L, log(luaL_checknumber(L, 1)));
return 1;
}
static int math_log10 (lua_State *L) {
lua_pushnumber(L, log10(luaL_checknumber(L, 1)));
return 1;
}
static int math_exp (lua_State *L) {
lua_pushnumber(L, exp(luaL_checknumber(L, 1)));
return 1;
}
static int math_deg (lua_State *L) {
lua_pushnumber(L, luaL_checknumber(L, 1)/RADIANS_PER_DEGREE);
return 1;
}
static int math_rad (lua_State *L) {
lua_pushnumber(L, luaL_checknumber(L, 1)*RADIANS_PER_DEGREE);
return 1;
}
static int math_frexp (lua_State *L) {
int e;
lua_pushnumber(L, frexp(luaL_checknumber(L, 1), &e));
lua_pushinteger(L, e);
return 2;
}
static int math_ldexp (lua_State *L) {
lua_pushnumber(L, ldexp(luaL_checknumber(L, 1), luaL_checkint(L, 2)));
return 1;
}
static int math_min (lua_State *L) {
int n = lua_gettop(L); /* number of arguments */
lua_Number dmin = luaL_checknumber(L, 1);
int i;
for (i=2; i<=n; i++) {
lua_Number d = luaL_checknumber(L, i);
if (d < dmin)
dmin = d;
}
lua_pushnumber(L, dmin);
return 1;
}
static int math_max (lua_State *L) {
int n = lua_gettop(L); /* number of arguments */
lua_Number dmax = luaL_checknumber(L, 1);
int i;
for (i=2; i<=n; i++) {
lua_Number d = luaL_checknumber(L, i);
if (d > dmax)
dmax = d;
}
lua_pushnumber(L, dmax);
return 1;
}
static int math_random (lua_State *L) {
/* the `%' avoids the (rare) case of r==1, and is needed also because on
some systems (SunOS!) `rand()' may return a value larger than RAND_MAX */
lua_Number r = (lua_Number)(rand()%RAND_MAX) / (lua_Number)RAND_MAX;
switch (lua_gettop(L)) { /* check number of arguments */
case 0: { /* no arguments */
lua_pushnumber(L, r); /* Number between 0 and 1 */
break;
}
case 1: { /* only upper limit */
int u = luaL_checkint(L, 1);
luaL_argcheck(L, 1<=u, 1, "interval is empty");
lua_pushnumber(L, floor(r*u)+1); /* int between 1 and `u' */
break;
}
case 2: { /* lower and upper limits */
int l = luaL_checkint(L, 1);
int u = luaL_checkint(L, 2);
luaL_argcheck(L, l<=u, 2, "interval is empty");
lua_pushnumber(L, floor(r*(u-l+1))+l); /* int between `l' and `u' */
break;
}
default: return luaL_error(L, "wrong number of arguments");
}
return 1;
}
static int math_randomseed (lua_State *L) {
srand(luaL_checkint(L, 1));
return 0;
}
static const luaL_Reg mathlib[] = {
{"abs", math_abs},
{"acos", math_acos},
{"asin", math_asin},
{"atan2", math_atan2},
{"atan", math_atan},
{"ceil", math_ceil},
{"cosh", math_cosh},
{"cos", math_cos},
{"deg", math_deg},
{"exp", math_exp},
{"floor", math_floor},
{"fmod", math_fmod},
{"frexp", math_frexp},
{"ldexp", math_ldexp},
{"log10", math_log10},
{"log", math_log},
{"max", math_max},
{"min", math_min},
{"modf", math_modf},
{"pow", math_pow},
{"rad", math_rad},
{"random", math_random},
{"randomseed", math_randomseed},
{"sinh", math_sinh},
{"sin", math_sin},
{"sqrt", math_sqrt},
{"tanh", math_tanh},
{"tan", math_tan},
{NULL, NULL}
};
/*
** Open math library
*/
LUALIB_API int luaopen_math (lua_State *L) {
luaL_register(L, LUA_MATHLIBNAME, mathlib);
lua_pushnumber(L, PI);
lua_setfield(L, -2, "pi");
lua_pushnumber(L, HUGE_VAL);
lua_setfield(L, -2, "huge");
#if defined(LUA_COMPAT_MOD)
lua_getfield(L, -1, "fmod");
lua_setfield(L, -2, "mod");
#endif
return 1;
}

86
desmume/src/windows/lua/lua-5.1.4/src/lmem.c
View File

@ -1,86 +0,0 @@
/*
** $Id: lmem.c,v 1.70.1.1 2007/12/27 13:02:25 roberto Exp $
** Interface to Memory Manager
** See Copyright Notice in lua.h
*/
#include <stddef.h>
#define lmem_c
#define LUA_CORE
#include "lua.h"
#include "ldebug.h"
#include "ldo.h"
#include "lmem.h"
#include "lobject.h"
#include "lstate.h"
/*
** About the realloc function:
** void * frealloc (void *ud, void *ptr, size_t osize, size_t nsize);
** (`osize' is the old size, `nsize' is the new size)
**
** Lua ensures that (ptr == NULL) iff (osize == 0).
**
** * frealloc(ud, NULL, 0, x) creates a new block of size `x'
**
** * frealloc(ud, p, x, 0) frees the block `p'
** (in this specific case, frealloc must return NULL).
** particularly, frealloc(ud, NULL, 0, 0) does nothing
** (which is equivalent to free(NULL) in ANSI C)
**
** frealloc returns NULL if it cannot create or reallocate the area
** (any reallocation to an equal or smaller size cannot fail!)
*/
#define MINSIZEARRAY 4
void *luaM_growaux_ (lua_State *L, void *block, int *size, size_t size_elems,
int limit, const char *errormsg) {
void *newblock;
int newsize;
if (*size >= limit/2) { /* cannot double it? */
if (*size >= limit) /* cannot grow even a little? */
luaG_runerror(L, errormsg);
newsize = limit; /* still have at least one free place */
}
else {
newsize = (*size)*2;
if (newsize < MINSIZEARRAY)
newsize = MINSIZEARRAY; /* minimum size */
}
newblock = luaM_reallocv(L, block, *size, newsize, size_elems);
*size = newsize; /* update only when everything else is OK */
return newblock;
}
void *luaM_toobig (lua_State *L) {
luaG_runerror(L, "memory allocation error: block too big");
return NULL; /* to avoid warnings */
}
/*
** generic allocation routine.
*/
void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) {
global_State *g = G(L);
lua_assert((osize == 0) == (block == NULL));
block = (*g->frealloc)(g->ud, block, osize, nsize);
if (block == NULL && nsize > 0)
luaD_throw(L, LUA_ERRMEM);
lua_assert((nsize == 0) == (block == NULL));
g->totalbytes = (g->totalbytes - osize) + nsize;
return block;
}

666
desmume/src/windows/lua/lua-5.1.4/src/loadlib.c
View File

@ -1,666 +0,0 @@
/*
** $Id: loadlib.c,v 1.52.1.3 2008/08/06 13:29:28 roberto Exp $
** Dynamic library loader for Lua
** See Copyright Notice in lua.h
**
** This module contains an implementation of loadlib for Unix systems
** that have dlfcn, an implementation for Darwin (Mac OS X), an
** implementation for Windows, and a stub for other systems.
*/
#include <stdlib.h>
#include <string.h>
#define loadlib_c
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
/* prefix for open functions in C libraries */
#define LUA_POF "luaopen_"
/* separator for open functions in C libraries */
#define LUA_OFSEP "_"
#define LIBPREFIX "LOADLIB: "
#define POF LUA_POF
#define LIB_FAIL "open"
/* error codes for ll_loadfunc */
#define ERRLIB 1
#define ERRFUNC 2
#define setprogdir(L) ((void)0)
static void ll_unloadlib (void *lib);
static void *ll_load (lua_State *L, const char *path);
static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym);
#if defined(LUA_DL_DLOPEN)
/*
** {========================================================================
** This is an implementation of loadlib based on the dlfcn interface.
** The dlfcn interface is available in Linux, SunOS, Solaris, IRIX, FreeBSD,
** NetBSD, AIX 4.2, HPUX 11, and probably most other Unix flavors, at least
** as an emulation layer on top of native functions.
** =========================================================================
*/
#include <dlfcn.h>
static void ll_unloadlib (void *lib) {
dlclose(lib);
}
static void *ll_load (lua_State *L, const char *path) {
void *lib = dlopen(path, RTLD_NOW);
if (lib == NULL) lua_pushstring(L, dlerror());
return lib;
}
static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
lua_CFunction f = (lua_CFunction)dlsym(lib, sym);
if (f == NULL) lua_pushstring(L, dlerror());
return f;
}
/* }====================================================== */
#elif defined(LUA_DL_DLL)
/*
** {======================================================================
** This is an implementation of loadlib for Windows using native functions.
** =======================================================================
*/
#include <windows.h>
#undef setprogdir
static void setprogdir (lua_State *L) {
char buff[MAX_PATH + 1];
char *lb;
DWORD nsize = sizeof(buff)/sizeof(char);
DWORD n = GetModuleFileNameA(NULL, buff, nsize);
if (n == 0 || n == nsize || (lb = strrchr(buff, '\\')) == NULL)
luaL_error(L, "unable to get ModuleFileName");
else {
*lb = '\0';
luaL_gsub(L, lua_tostring(L, -1), LUA_EXECDIR, buff);
lua_remove(L, -2); /* remove original string */
}
}
static void pusherror (lua_State *L) {
int error = GetLastError();
char buffer[128];
if (FormatMessageA(FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM,
NULL, error, 0, buffer, sizeof(buffer), NULL))
lua_pushstring(L, buffer);
else
lua_pushfstring(L, "system error %d\n", error);
}
static void ll_unloadlib (void *lib) {
FreeLibrary((HINSTANCE)lib);
}
static void *ll_load (lua_State *L, const char *path) {
HINSTANCE lib = LoadLibraryA(path);
if (lib == NULL) pusherror(L);
return lib;
}
static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
lua_CFunction f = (lua_CFunction)GetProcAddress((HINSTANCE)lib, sym);
if (f == NULL) pusherror(L);
return f;
}
/* }====================================================== */
#elif defined(LUA_DL_DYLD)
/*
** {======================================================================
** Native Mac OS X / Darwin Implementation
** =======================================================================
*/
#include <mach-o/dyld.h>
/* Mac appends a `_' before C function names */
#undef POF
#define POF "_" LUA_POF
static void pusherror (lua_State *L) {
const char *err_str;
const char *err_file;
NSLinkEditErrors err;
int err_num;
NSLinkEditError(&err, &err_num, &err_file, &err_str);
lua_pushstring(L, err_str);
}
static const char *errorfromcode (NSObjectFileImageReturnCode ret) {
switch (ret) {
case NSObjectFileImageInappropriateFile:
return "file is not a bundle";
case NSObjectFileImageArch:
return "library is for wrong CPU type";
case NSObjectFileImageFormat:
return "bad format";
case NSObjectFileImageAccess:
return "cannot access file";
case NSObjectFileImageFailure:
default:
return "unable to load library";
}
}
static void ll_unloadlib (void *lib) {
NSUnLinkModule((NSModule)lib, NSUNLINKMODULE_OPTION_RESET_LAZY_REFERENCES);
}
static void *ll_load (lua_State *L, const char *path) {
NSObjectFileImage img;
NSObjectFileImageReturnCode ret;
/* this would be a rare case, but prevents crashing if it happens */
if(!_dyld_present()) {
lua_pushliteral(L, "dyld not present");
return NULL;
}
ret = NSCreateObjectFileImageFromFile(path, &img);
if (ret == NSObjectFileImageSuccess) {
NSModule mod = NSLinkModule(img, path, NSLINKMODULE_OPTION_PRIVATE |
NSLINKMODULE_OPTION_RETURN_ON_ERROR);
NSDestroyObjectFileImage(img);
if (mod == NULL) pusherror(L);
return mod;
}
lua_pushstring(L, errorfromcode(ret));
return NULL;
}
static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
NSSymbol nss = NSLookupSymbolInModule((NSModule)lib, sym);
if (nss == NULL) {
lua_pushfstring(L, "symbol " LUA_QS " not found", sym);
return NULL;
}
return (lua_CFunction)NSAddressOfSymbol(nss);
}
/* }====================================================== */
#else
/*
** {======================================================
** Fallback for other systems
** =======================================================
*/
#undef LIB_FAIL
#define LIB_FAIL "absent"
#define DLMSG "dynamic libraries not enabled; check your Lua installation"
static void ll_unloadlib (void *lib) {
(void)lib; /* to avoid warnings */
}
static void *ll_load (lua_State *L, const char *path) {
(void)path; /* to avoid warnings */
lua_pushliteral(L, DLMSG);
return NULL;
}
static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
(void)lib; (void)sym; /* to avoid warnings */
lua_pushliteral(L, DLMSG);
return NULL;
}
/* }====================================================== */
#endif
static void **ll_register (lua_State *L, const char *path) {
void **plib;
lua_pushfstring(L, "%s%s", LIBPREFIX, path);
lua_gettable(L, LUA_REGISTRYINDEX); /* check library in registry? */
if (!lua_isnil(L, -1)) /* is there an entry? */
plib = (void **)lua_touserdata(L, -1);
else { /* no entry yet; create one */
lua_pop(L, 1);
plib = (void **)lua_newuserdata(L, sizeof(const void *));
*plib = NULL;
luaL_getmetatable(L, "_LOADLIB");
lua_setmetatable(L, -2);
lua_pushfstring(L, "%s%s", LIBPREFIX, path);
lua_pushvalue(L, -2);
lua_settable(L, LUA_REGISTRYINDEX);
}
return plib;
}
/*
** __gc tag method: calls library's `ll_unloadlib' function with the lib
** handle
*/
static int gctm (lua_State *L) {
void **lib = (void **)luaL_checkudata(L, 1, "_LOADLIB");
if (*lib) ll_unloadlib(*lib);
*lib = NULL; /* mark library as closed */
return 0;
}
static int ll_loadfunc (lua_State *L, const char *path, const char *sym) {
void **reg = ll_register(L, path);
if (*reg == NULL) *reg = ll_load(L, path);
if (*reg == NULL)
return ERRLIB; /* unable to load library */
else {
lua_CFunction f = ll_sym(L, *reg, sym);
if (f == NULL)
return ERRFUNC; /* unable to find function */
lua_pushcfunction(L, f);
return 0; /* return function */
}
}
static int ll_loadlib (lua_State *L) {
const char *path = luaL_checkstring(L, 1);
const char *init = luaL_checkstring(L, 2);
int stat = ll_loadfunc(L, path, init);
if (stat == 0) /* no errors? */
return 1; /* return the loaded function */
else { /* error; error message is on stack top */
lua_pushnil(L);
lua_insert(L, -2);
lua_pushstring(L, (stat == ERRLIB) ? LIB_FAIL : "init");
return 3; /* return nil, error message, and where */
}
}
/*
** {======================================================
** 'require' function
** =======================================================
*/
static int readable (const char *filename) {
FILE *f = fopen(filename, "r"); /* try to open file */
if (f == NULL) return 0; /* open failed */
fclose(f);
return 1;
}
static const char *pushnexttemplate (lua_State *L, const char *path) {
const char *l;
while (*path == *LUA_PATHSEP) path++; /* skip separators */
if (*path == '\0') return NULL; /* no more templates */
l = strchr(path, *LUA_PATHSEP); /* find next separator */
if (l == NULL) l = path + strlen(path);
lua_pushlstring(L, path, l - path); /* template */
return l;
}
static const char *findfile (lua_State *L, const char *name,
const char *pname) {
const char *path;
name = luaL_gsub(L, name, ".", LUA_DIRSEP);
lua_getfield(L, LUA_ENVIRONINDEX, pname);
path = lua_tostring(L, -1);
if (path == NULL)
luaL_error(L, LUA_QL("package.%s") " must be a string", pname);
lua_pushliteral(L, ""); /* error accumulator */
while ((path = pushnexttemplate(L, path)) != NULL) {
const char *filename;
filename = luaL_gsub(L, lua_tostring(L, -1), LUA_PATH_MARK, name);
lua_remove(L, -2); /* remove path template */
if (readable(filename)) /* does file exist and is readable? */
return filename; /* return that file name */
lua_pushfstring(L, "\n\tno file " LUA_QS, filename);
lua_remove(L, -2); /* remove file name */
lua_concat(L, 2); /* add entry to possible error message */
}
return NULL; /* not found */
}
static void loaderror (lua_State *L, const char *filename) {
luaL_error(L, "error loading module " LUA_QS " from file " LUA_QS ":\n\t%s",
lua_tostring(L, 1), filename, lua_tostring(L, -1));
}
static int loader_Lua (lua_State *L) {
const char *filename;
const char *name = luaL_checkstring(L, 1);
filename = findfile(L, name, "path");
if (filename == NULL) return 1; /* library not found in this path */
if (luaL_loadfile(L, filename) != 0)
loaderror(L, filename);
return 1; /* library loaded successfully */
}
static const char *mkfuncname (lua_State *L, const char *modname) {
const char *funcname;
const char *mark = strchr(modname, *LUA_IGMARK);
if (mark) modname = mark + 1;
funcname = luaL_gsub(L, modname, ".", LUA_OFSEP);
funcname = lua_pushfstring(L, POF"%s", funcname);
lua_remove(L, -2); /* remove 'gsub' result */
return funcname;
}
static int loader_C (lua_State *L) {
const char *funcname;
const char *name = luaL_checkstring(L, 1);
const char *filename = findfile(L, name, "cpath");
if (filename == NULL) return 1; /* library not found in this path */
funcname = mkfuncname(L, name);
if (ll_loadfunc(L, filename, funcname) != 0)
loaderror(L, filename);
return 1; /* library loaded successfully */
}
static int loader_Croot (lua_State *L) {
const char *funcname;
const char *filename;
const char *name = luaL_checkstring(L, 1);
const char *p = strchr(name, '.');
int stat;
if (p == NULL) return 0; /* is root */
lua_pushlstring(L, name, p - name);
filename = findfile(L, lua_tostring(L, -1), "cpath");
if (filename == NULL) return 1; /* root not found */
funcname = mkfuncname(L, name);
if ((stat = ll_loadfunc(L, filename, funcname)) != 0) {
if (stat != ERRFUNC) loaderror(L, filename); /* real error */
lua_pushfstring(L, "\n\tno module " LUA_QS " in file " LUA_QS,
name, filename);
return 1; /* function not found */
}
return 1;
}
static int loader_preload (lua_State *L) {
const char *name = luaL_checkstring(L, 1);
lua_getfield(L, LUA_ENVIRONINDEX, "preload");
if (!lua_istable(L, -1))
luaL_error(L, LUA_QL("package.preload") " must be a table");
lua_getfield(L, -1, name);
if (lua_isnil(L, -1)) /* not found? */
lua_pushfstring(L, "\n\tno field package.preload['%s']", name);
return 1;
}
static const int sentinel_ = 0;
#define sentinel ((void *)&sentinel_)
static int ll_require (lua_State *L) {
const char *name = luaL_checkstring(L, 1);
int i;
lua_settop(L, 1); /* _LOADED table will be at index 2 */
lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
lua_getfield(L, 2, name);
if (lua_toboolean(L, -1)) { /* is it there? */
if (lua_touserdata(L, -1) == sentinel) /* check loops */
luaL_error(L, "loop or previous error loading module " LUA_QS, name);
return 1; /* package is already loaded */
}
/* else must load it; iterate over available loaders */
lua_getfield(L, LUA_ENVIRONINDEX, "loaders");
if (!lua_istable(L, -1))
luaL_error(L, LUA_QL("package.loaders") " must be a table");
lua_pushliteral(L, ""); /* error message accumulator */
for (i=1; ; i++) {
lua_rawgeti(L, -2, i); /* get a loader */
if (lua_isnil(L, -1))
luaL_error(L, "module " LUA_QS " not found:%s",
name, lua_tostring(L, -2));
lua_pushstring(L, name);
lua_call(L, 1, 1); /* call it */
if (lua_isfunction(L, -1)) /* did it find module? */
break; /* module loaded successfully */
else if (lua_isstring(L, -1)) /* loader returned error message? */
lua_concat(L, 2); /* accumulate it */
else
lua_pop(L, 1);
}
lua_pushlightuserdata(L, sentinel);
lua_setfield(L, 2, name); /* _LOADED[name] = sentinel */
lua_pushstring(L, name); /* pass name as argument to module */
lua_call(L, 1, 1); /* run loaded module */
if (!lua_isnil(L, -1)) /* non-nil return? */
lua_setfield(L, 2, name); /* _LOADED[name] = returned value */
lua_getfield(L, 2, name);
if (lua_touserdata(L, -1) == sentinel) { /* module did not set a value? */
lua_pushboolean(L, 1); /* use true as result */
lua_pushvalue(L, -1); /* extra copy to be returned */
lua_setfield(L, 2, name); /* _LOADED[name] = true */
}
return 1;
}
/* }====================================================== */
/*
** {======================================================
** 'module' function
** =======================================================
*/
static void setfenv (lua_State *L) {
lua_Debug ar;
if (lua_getstack(L, 1, &ar) == 0 ||
lua_getinfo(L, "f", &ar) == 0 || /* get calling function */
lua_iscfunction(L, -1))
luaL_error(L, LUA_QL("module") " not called from a Lua function");
lua_pushvalue(L, -2);
lua_setfenv(L, -2);
lua_pop(L, 1);
}
static void dooptions (lua_State *L, int n) {
int i;
for (i = 2; i <= n; i++) {
lua_pushvalue(L, i); /* get option (a function) */
lua_pushvalue(L, -2); /* module */
lua_call(L, 1, 0);
}
}
static void modinit (lua_State *L, const char *modname) {
const char *dot;
lua_pushvalue(L, -1);
lua_setfield(L, -2, "_M"); /* module._M = module */
lua_pushstring(L, modname);
lua_setfield(L, -2, "_NAME");
dot = strrchr(modname, '.'); /* look for last dot in module name */
if (dot == NULL) dot = modname;
else dot++;
/* set _PACKAGE as package name (full module name minus last part) */
lua_pushlstring(L, modname, dot - modname);
lua_setfield(L, -2, "_PACKAGE");
}
static int ll_module (lua_State *L) {
const char *modname = luaL_checkstring(L, 1);
int loaded = lua_gettop(L) + 1; /* index of _LOADED table */
lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
lua_getfield(L, loaded, modname); /* get _LOADED[modname] */
if (!lua_istable(L, -1)) { /* not found? */
lua_pop(L, 1); /* remove previous result */
/* try global variable (and create one if it does not exist) */
if (luaL_findtable(L, LUA_GLOBALSINDEX, modname, 1) != NULL)
return luaL_error(L, "name conflict for module " LUA_QS, modname);
lua_pushvalue(L, -1);
lua_setfield(L, loaded, modname); /* _LOADED[modname] = new table */
}
/* check whether table already has a _NAME field */
lua_getfield(L, -1, "_NAME");
if (!lua_isnil(L, -1)) /* is table an initialized module? */
lua_pop(L, 1);
else { /* no; initialize it */
lua_pop(L, 1);
modinit(L, modname);
}
lua_pushvalue(L, -1);
setfenv(L);
dooptions(L, loaded - 1);
return 0;
}
static int ll_seeall (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
if (!lua_getmetatable(L, 1)) {
lua_createtable(L, 0, 1); /* create new metatable */
lua_pushvalue(L, -1);
lua_setmetatable(L, 1);
}
lua_pushvalue(L, LUA_GLOBALSINDEX);
lua_setfield(L, -2, "__index"); /* mt.__index = _G */
return 0;
}
/* }====================================================== */
/* auxiliary mark (for internal use) */
#define AUXMARK "\1"
static void setpath (lua_State *L, const char *fieldname, const char *envname,
const char *def) {
const char *path = getenv(envname);
if (path == NULL) /* no environment variable? */
lua_pushstring(L, def); /* use default */
else {
/* replace ";;" by ";AUXMARK;" and then AUXMARK by default path */
path = luaL_gsub(L, path, LUA_PATHSEP LUA_PATHSEP,
LUA_PATHSEP AUXMARK LUA_PATHSEP);
luaL_gsub(L, path, AUXMARK, def);
lua_remove(L, -2);
}
setprogdir(L);
lua_setfield(L, -2, fieldname);
}
static const luaL_Reg pk_funcs[] = {
{"loadlib", ll_loadlib},
{"seeall", ll_seeall},
{NULL, NULL}
};
static const luaL_Reg ll_funcs[] = {
{"module", ll_module},
{"require", ll_require},
{NULL, NULL}
};
static const lua_CFunction loaders[] =
{loader_preload, loader_Lua, loader_C, loader_Croot, NULL};
LUALIB_API int luaopen_package (lua_State *L) {
int i;
/* create new type _LOADLIB */
luaL_newmetatable(L, "_LOADLIB");
lua_pushcfunction(L, gctm);
lua_setfield(L, -2, "__gc");
/* create `package' table */
luaL_register(L, LUA_LOADLIBNAME, pk_funcs);
#if defined(LUA_COMPAT_LOADLIB)
lua_getfield(L, -1, "loadlib");
lua_setfield(L, LUA_GLOBALSINDEX, "loadlib");
#endif
lua_pushvalue(L, -1);
lua_replace(L, LUA_ENVIRONINDEX);
/* create `loaders' table */
lua_createtable(L, 0, sizeof(loaders)/sizeof(loaders[0]) - 1);
/* fill it with pre-defined loaders */
for (i=0; loaders[i] != NULL; i++) {
lua_pushcfunction(L, loaders[i]);
lua_rawseti(L, -2, i+1);
}
lua_setfield(L, -2, "loaders"); /* put it in field `loaders' */
setpath(L, "path", LUA_PATH, LUA_PATH_DEFAULT); /* set field `path' */
setpath(L, "cpath", LUA_CPATH, LUA_CPATH_DEFAULT); /* set field `cpath' */
/* store config information */
lua_pushliteral(L, LUA_DIRSEP "\n" LUA_PATHSEP "\n" LUA_PATH_MARK "\n"
LUA_EXECDIR "\n" LUA_IGMARK);
lua_setfield(L, -2, "config");
/* set field `loaded' */
luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 2);
lua_setfield(L, -2, "loaded");
/* set field `preload' */
lua_newtable(L);
lua_setfield(L, -2, "preload");
lua_pushvalue(L, LUA_GLOBALSINDEX);
luaL_register(L, NULL, ll_funcs); /* open lib into global table */
lua_pop(L, 1);
return 1; /* return 'package' table */
}

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@ -1,214 +0,0 @@
/*
** $Id: lobject.c,v 2.22.1.1 2007/12/27 13:02:25 roberto Exp $
** Some generic functions over Lua objects
** See Copyright Notice in lua.h
*/
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define lobject_c
#define LUA_CORE
#include "lua.h"
#include "ldo.h"
#include "lmem.h"
#include "lobject.h"
#include "lstate.h"
#include "lstring.h"
#include "lvm.h"
const TValue luaO_nilobject_ = {{NULL}, LUA_TNIL};
/*
** converts an integer to a "floating point byte", represented as
** (eeeeexxx), where the real value is (1xxx) * 2^(eeeee - 1) if
** eeeee != 0 and (xxx) otherwise.
*/
int luaO_int2fb (unsigned int x) {
int e = 0; /* expoent */
while (x >= 16) {
x = (x+1) >> 1;
e++;
}
if (x < 8) return x;
else return ((e+1) << 3) | (cast_int(x) - 8);
}
/* converts back */
int luaO_fb2int (int x) {
int e = (x >> 3) & 31;
if (e == 0) return x;
else return ((x & 7)+8) << (e - 1);
}
int luaO_log2 (unsigned int x) {
static const lu_byte log_2[256] = {
0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
};
int l = -1;
while (x >= 256) { l += 8; x >>= 8; }
return l + log_2[x];
}
int luaO_rawequalObj (const TValue *t1, const TValue *t2) {
if (ttype(t1) != ttype(t2)) return 0;
else switch (ttype(t1)) {
case LUA_TNIL:
return 1;
case LUA_TNUMBER:
return luai_numeq(nvalue(t1), nvalue(t2));
case LUA_TBOOLEAN:
return bvalue(t1) == bvalue(t2); /* boolean true must be 1 !! */
case LUA_TLIGHTUSERDATA:
return pvalue(t1) == pvalue(t2);
default:
lua_assert(iscollectable(t1));
return gcvalue(t1) == gcvalue(t2);
}
}
int luaO_str2d (const char *s, lua_Number *result) {
char *endptr;
*result = lua_str2number(s, &endptr);
if (endptr == s) return 0; /* conversion failed */
if (*endptr == 'x' || *endptr == 'X') /* maybe an hexadecimal constant? */
*result = cast_num(strtoul(s, &endptr, 16));
if (*endptr == '\0') return 1; /* most common case */
while (isspace(cast(unsigned char, *endptr))) endptr++;
if (*endptr != '\0') return 0; /* invalid trailing characters? */
return 1;
}
static void pushstr (lua_State *L, const char *str) {
setsvalue2s(L, L->top, luaS_new(L, str));
incr_top(L);
}
/* this function handles only `%d', `%c', %f, %p, and `%s' formats */
const char *luaO_pushvfstring (lua_State *L, const char *fmt, va_list argp) {
int n = 1;
pushstr(L, "");
for (;;) {
const char *e = strchr(fmt, '%');
if (e == NULL) break;
setsvalue2s(L, L->top, luaS_newlstr(L, fmt, e-fmt));
incr_top(L);
switch (*(e+1)) {
case 's': {
const char *s = va_arg(argp, char *);
if (s == NULL) s = "(null)";
pushstr(L, s);
break;
}
case 'c': {
char buff[2];
buff[0] = cast(char, va_arg(argp, int));
buff[1] = '\0';
pushstr(L, buff);
break;
}
case 'd': {
setnvalue(L->top, cast_num(va_arg(argp, int)));
incr_top(L);
break;
}
case 'f': {
setnvalue(L->top, cast_num(va_arg(argp, l_uacNumber)));
incr_top(L);
break;
}
case 'p': {
char buff[4*sizeof(void *) + 8]; /* should be enough space for a `%p' */
sprintf(buff, "%p", va_arg(argp, void *));
pushstr(L, buff);
break;
}
case '%': {
pushstr(L, "%");
break;
}
default: {
char buff[3];
buff[0] = '%';
buff[1] = *(e+1);
buff[2] = '\0';
pushstr(L, buff);
break;
}
}
n += 2;
fmt = e+2;
}
pushstr(L, fmt);
luaV_concat(L, n+1, cast_int(L->top - L->base) - 1);
L->top -= n;
return svalue(L->top - 1);
}
const char *luaO_pushfstring (lua_State *L, const char *fmt, ...) {
const char *msg;
va_list argp;
va_start(argp, fmt);
msg = luaO_pushvfstring(L, fmt, argp);
va_end(argp);
return msg;
}
void luaO_chunkid (char *out, const char *source, size_t bufflen) {
if (*source == '=') {
strncpy(out, source+1, bufflen); /* remove first char */
out[bufflen-1] = '\0'; /* ensures null termination */
}
else { /* out = "source", or "...source" */
if (*source == '@') {
size_t l;
source++; /* skip the `@' */
bufflen -= sizeof(" '...' ");
l = strlen(source);
strcpy(out, "");
if (l > bufflen) {
source += (l-bufflen); /* get last part of file name */
strcat(out, "...");
}
strcat(out, source);
}
else { /* out = [string "string"] */
size_t len = strcspn(source, "\n\r"); /* stop at first newline */
bufflen -= sizeof(" [string \"...\"] ");
if (len > bufflen) len = bufflen;
strcpy(out, "[string \"");
if (source[len] != '\0') { /* must truncate? */
strncat(out, source, len);
strcat(out, "...");
}
else
strcat(out, source);
strcat(out, "\"]");
}
}
}

102
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@ -1,102 +0,0 @@
/*
** $Id: lopcodes.c,v 1.37.1.1 2007/12/27 13:02:25 roberto Exp $
** See Copyright Notice in lua.h
*/
#define lopcodes_c
#define LUA_CORE
#include "lopcodes.h"
/* ORDER OP */
const char *const luaP_opnames[NUM_OPCODES+1] = {
"MOVE",
"LOADK",
"LOADBOOL",
"LOADNIL",
"GETUPVAL",
"GETGLOBAL",
"GETTABLE",
"SETGLOBAL",
"SETUPVAL",
"SETTABLE",
"NEWTABLE",
"SELF",
"ADD",
"SUB",
"MUL",
"DIV",
"MOD",
"POW",
"UNM",
"NOT",
"LEN",
"CONCAT",
"JMP",
"EQ",
"LT",
"LE",
"TEST",
"TESTSET",
"CALL",
"TAILCALL",
"RETURN",
"FORLOOP",
"FORPREP",
"TFORLOOP",
"SETLIST",
"CLOSE",
"CLOSURE",
"VARARG",
NULL
};
#define opmode(t,a,b,c,m) (((t)<<7) | ((a)<<6) | ((b)<<4) | ((c)<<2) | (m))
const lu_byte luaP_opmodes[NUM_OPCODES] = {
/* T A B C mode opcode */
opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_MOVE */
,opmode(0, 1, OpArgK, OpArgN, iABx) /* OP_LOADK */
,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_LOADBOOL */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_LOADNIL */
,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_GETUPVAL */
,opmode(0, 1, OpArgK, OpArgN, iABx) /* OP_GETGLOBAL */
,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_GETTABLE */
,opmode(0, 0, OpArgK, OpArgN, iABx) /* OP_SETGLOBAL */
,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_SETUPVAL */
,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_SETTABLE */
,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_NEWTABLE */
,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_SELF */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_ADD */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_SUB */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_MUL */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_DIV */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_MOD */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_POW */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_UNM */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_NOT */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_LEN */
,opmode(0, 1, OpArgR, OpArgR, iABC) /* OP_CONCAT */
,opmode(0, 0, OpArgR, OpArgN, iAsBx) /* OP_JMP */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_EQ */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_LT */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_LE */
,opmode(1, 1, OpArgR, OpArgU, iABC) /* OP_TEST */
,opmode(1, 1, OpArgR, OpArgU, iABC) /* OP_TESTSET */
,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_CALL */
,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_TAILCALL */
,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_RETURN */
,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_FORLOOP */
,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_FORPREP */
,opmode(1, 0, OpArgN, OpArgU, iABC) /* OP_TFORLOOP */
,opmode(0, 0, OpArgU, OpArgU, iABC) /* OP_SETLIST */
,opmode(0, 0, OpArgN, OpArgN, iABC) /* OP_CLOSE */
,opmode(0, 1, OpArgU, OpArgN, iABx) /* OP_CLOSURE */
,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_VARARG */
};

243
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/*
** $Id: loslib.c,v 1.19.1.3 2008/01/18 16:38:18 roberto Exp $
** Standard Operating System library
** See Copyright Notice in lua.h
*/
#include <errno.h>
#include <locale.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#define loslib_c
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
static int os_pushresult (lua_State *L, int i, const char *filename) {
int en = errno; /* calls to Lua API may change this value */
if (i) {
lua_pushboolean(L, 1);
return 1;
}
else {
lua_pushnil(L);
lua_pushfstring(L, "%s: %s", filename, strerror(en));
lua_pushinteger(L, en);
return 3;
}
}
static int os_execute (lua_State *L) {
lua_pushinteger(L, system(luaL_optstring(L, 1, NULL)));
return 1;
}
static int os_remove (lua_State *L) {
const char *filename = luaL_checkstring(L, 1);
return os_pushresult(L, remove(filename) == 0, filename);
}
static int os_rename (lua_State *L) {
const char *fromname = luaL_checkstring(L, 1);
const char *toname = luaL_checkstring(L, 2);
return os_pushresult(L, rename(fromname, toname) == 0, fromname);
}
static int os_tmpname (lua_State *L) {
char buff[LUA_TMPNAMBUFSIZE];
int err;
lua_tmpnam(buff, err);
if (err)
return luaL_error(L, "unable to generate a unique filename");
lua_pushstring(L, buff);
return 1;
}
static int os_getenv (lua_State *L) {
lua_pushstring(L, getenv(luaL_checkstring(L, 1))); /* if NULL push nil */
return 1;
}
static int os_clock (lua_State *L) {
lua_pushnumber(L, ((lua_Number)clock())/(lua_Number)CLOCKS_PER_SEC);
return 1;
}
/*
** {======================================================
** Time/Date operations
** { year=%Y, month=%m, day=%d, hour=%H, min=%M, sec=%S,
** wday=%w+1, yday=%j, isdst=? }
** =======================================================
*/
static void setfield (lua_State *L, const char *key, int value) {
lua_pushinteger(L, value);
lua_setfield(L, -2, key);
}
static void setboolfield (lua_State *L, const char *key, int value) {
if (value < 0) /* undefined? */
return; /* does not set field */
lua_pushboolean(L, value);
lua_setfield(L, -2, key);
}
static int getboolfield (lua_State *L, const char *key) {
int res;
lua_getfield(L, -1, key);
res = lua_isnil(L, -1) ? -1 : lua_toboolean(L, -1);
lua_pop(L, 1);
return res;
}
static int getfield (lua_State *L, const char *key, int d) {
int res;
lua_getfield(L, -1, key);
if (lua_isnumber(L, -1))
res = (int)lua_tointeger(L, -1);
else {
if (d < 0)
return luaL_error(L, "field " LUA_QS " missing in date table", key);
res = d;
}
lua_pop(L, 1);
return res;
}
static int os_date (lua_State *L) {
const char *s = luaL_optstring(L, 1, "%c");
time_t t = luaL_opt(L, (time_t)luaL_checknumber, 2, time(NULL));
struct tm *stm;
if (*s == '!') { /* UTC? */
stm = gmtime(&t);
s++; /* skip `!' */
}
else
stm = localtime(&t);
if (stm == NULL) /* invalid date? */
lua_pushnil(L);
else if (strcmp(s, "*t") == 0) {
lua_createtable(L, 0, 9); /* 9 = number of fields */
setfield(L, "sec", stm->tm_sec);
setfield(L, "min", stm->tm_min);
setfield(L, "hour", stm->tm_hour);
setfield(L, "day", stm->tm_mday);
setfield(L, "month", stm->tm_mon+1);
setfield(L, "year", stm->tm_year+1900);
setfield(L, "wday", stm->tm_wday+1);
setfield(L, "yday", stm->tm_yday+1);
setboolfield(L, "isdst", stm->tm_isdst);
}
else {
char cc[3];
luaL_Buffer b;
cc[0] = '%'; cc[2] = '\0';
luaL_buffinit(L, &b);
for (; *s; s++) {
if (*s != '%' || *(s + 1) == '\0') /* no conversion specifier? */
luaL_addchar(&b, *s);
else {
size_t reslen;
char buff[200]; /* should be big enough for any conversion result */
cc[1] = *(++s);
reslen = strftime(buff, sizeof(buff), cc, stm);
luaL_addlstring(&b, buff, reslen);
}
}
luaL_pushresult(&b);
}
return 1;
}
static int os_time (lua_State *L) {
time_t t;
if (lua_isnoneornil(L, 1)) /* called without args? */
t = time(NULL); /* get current time */
else {
struct tm ts;
luaL_checktype(L, 1, LUA_TTABLE);
lua_settop(L, 1); /* make sure table is at the top */
ts.tm_sec = getfield(L, "sec", 0);
ts.tm_min = getfield(L, "min", 0);
ts.tm_hour = getfield(L, "hour", 12);
ts.tm_mday = getfield(L, "day", -1);
ts.tm_mon = getfield(L, "month", -1) - 1;
ts.tm_year = getfield(L, "year", -1) - 1900;
ts.tm_isdst = getboolfield(L, "isdst");
t = mktime(&ts);
}
if (t == (time_t)(-1))
lua_pushnil(L);
else
lua_pushnumber(L, (lua_Number)t);
return 1;
}
static int os_difftime (lua_State *L) {
lua_pushnumber(L, difftime((time_t)(luaL_checknumber(L, 1)),
(time_t)(luaL_optnumber(L, 2, 0))));
return 1;
}
/* }====================================================== */
static int os_setlocale (lua_State *L) {
static const int cat[] = {LC_ALL, LC_COLLATE, LC_CTYPE, LC_MONETARY,
LC_NUMERIC, LC_TIME};
static const char *const catnames[] = {"all", "collate", "ctype", "monetary",
"numeric", "time", NULL};
const char *l = luaL_optstring(L, 1, NULL);
int op = luaL_checkoption(L, 2, "all", catnames);
lua_pushstring(L, setlocale(cat[op], l));
return 1;
}
static int os_exit (lua_State *L) {
exit(luaL_optint(L, 1, EXIT_SUCCESS));
}
static const luaL_Reg syslib[] = {
{"clock", os_clock},
{"date", os_date},
{"difftime", os_difftime},
{"execute", os_execute},
{"exit", os_exit},
{"getenv", os_getenv},
{"remove", os_remove},
{"rename", os_rename},
{"setlocale", os_setlocale},
{"time", os_time},
{"tmpname", os_tmpname},
{NULL, NULL}
};
/* }====================================================== */
LUALIB_API int luaopen_os (lua_State *L) {
luaL_register(L, LUA_OSLIBNAME, syslib);
return 1;
}

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/*
** $Id: lstate.c,v 2.36.1.2 2008/01/03 15:20:39 roberto Exp $
** Global State
** See Copyright Notice in lua.h
*/
#include <stddef.h>
#define lstate_c
#define LUA_CORE
#include "lua.h"
#include "ldebug.h"
#include "ldo.h"
#include "lfunc.h"
#include "lgc.h"
#include "llex.h"
#include "lmem.h"
#include "lstate.h"
#include "lstring.h"
#include "ltable.h"
#include "ltm.h"
#define state_size(x) (sizeof(x) + LUAI_EXTRASPACE)
#define fromstate(l) (cast(lu_byte *, (l)) - LUAI_EXTRASPACE)
#define tostate(l) (cast(lua_State *, cast(lu_byte *, l) + LUAI_EXTRASPACE))
/*
** Main thread combines a thread state and the global state
*/
typedef struct LG {
lua_State l;
global_State g;
} LG;
static void stack_init (lua_State *L1, lua_State *L) {
/* initialize CallInfo array */
L1->base_ci = luaM_newvector(L, BASIC_CI_SIZE, CallInfo);
L1->ci = L1->base_ci;
L1->size_ci = BASIC_CI_SIZE;
L1->end_ci = L1->base_ci + L1->size_ci - 1;
/* initialize stack array */
L1->stack = luaM_newvector(L, BASIC_STACK_SIZE + EXTRA_STACK, TValue);
L1->stacksize = BASIC_STACK_SIZE + EXTRA_STACK;
L1->top = L1->stack;
L1->stack_last = L1->stack+(L1->stacksize - EXTRA_STACK)-1;
/* initialize first ci */
L1->ci->func = L1->top;
setnilvalue(L1->top++); /* `function' entry for this `ci' */
L1->base = L1->ci->base = L1->top;
L1->ci->top = L1->top + LUA_MINSTACK;
}
static void freestack (lua_State *L, lua_State *L1) {
luaM_freearray(L, L1->base_ci, L1->size_ci, CallInfo);
luaM_freearray(L, L1->stack, L1->stacksize, TValue);
}
/*
** open parts that may cause memory-allocation errors
*/
static void f_luaopen (lua_State *L, void *ud) {
global_State *g = G(L);
UNUSED(ud);
stack_init(L, L); /* init stack */
sethvalue(L, gt(L), luaH_new(L, 0, 2)); /* table of globals */
sethvalue(L, registry(L), luaH_new(L, 0, 2)); /* registry */
luaS_resize(L, MINSTRTABSIZE); /* initial size of string table */
luaT_init(L);
luaX_init(L);
luaS_fix(luaS_newliteral(L, MEMERRMSG));
g->GCthreshold = 4*g->totalbytes;
}
static void preinit_state (lua_State *L, global_State *g) {
G(L) = g;
L->stack = NULL;
L->stacksize = 0;
L->errorJmp = NULL;
L->hook = NULL;
L->hookmask = 0;
L->basehookcount = 0;
L->allowhook = 1;
resethookcount(L);
L->openupval = NULL;
L->size_ci = 0;
L->nCcalls = L->baseCcalls = 0;
L->status = 0;
L->base_ci = L->ci = NULL;
L->savedpc = NULL;
L->errfunc = 0;
setnilvalue(gt(L));
}
static void close_state (lua_State *L) {
global_State *g = G(L);
luaF_close(L, L->stack); /* close all upvalues for this thread */
luaC_freeall(L); /* collect all objects */
lua_assert(g->rootgc == obj2gco(L));
lua_assert(g->strt.nuse == 0);
luaM_freearray(L, G(L)->strt.hash, G(L)->strt.size, TString *);
luaZ_freebuffer(L, &g->buff);
freestack(L, L);
lua_assert(g->totalbytes == sizeof(LG));
(*g->frealloc)(g->ud, fromstate(L), state_size(LG), 0);
}
lua_State *luaE_newthread (lua_State *L) {
lua_State *L1 = tostate(luaM_malloc(L, state_size(lua_State)));
luaC_link(L, obj2gco(L1), LUA_TTHREAD);
preinit_state(L1, G(L));
stack_init(L1, L); /* init stack */
setobj2n(L, gt(L1), gt(L)); /* share table of globals */
L1->hookmask = L->hookmask;
L1->basehookcount = L->basehookcount;
L1->hook = L->hook;
resethookcount(L1);
lua_assert(iswhite(obj2gco(L1)));
return L1;
}
void luaE_freethread (lua_State *L, lua_State *L1) {
luaF_close(L1, L1->stack); /* close all upvalues for this thread */
lua_assert(L1->openupval == NULL);
luai_userstatefree(L1);
freestack(L, L1);
luaM_freemem(L, fromstate(L1), state_size(lua_State));
}
LUA_API lua_State *lua_newstate (lua_Alloc f, void *ud) {
int i;
lua_State *L;
global_State *g;
void *l = (*f)(ud, NULL, 0, state_size(LG));
if (l == NULL) return NULL;
L = tostate(l);
g = &((LG *)L)->g;
L->next = NULL;
L->tt = LUA_TTHREAD;
g->currentwhite = bit2mask(WHITE0BIT, FIXEDBIT);
L->marked = luaC_white(g);
set2bits(L->marked, FIXEDBIT, SFIXEDBIT);
preinit_state(L, g);
g->frealloc = f;
g->ud = ud;
g->mainthread = L;
g->uvhead.u.l.prev = &g->uvhead;
g->uvhead.u.l.next = &g->uvhead;
g->GCthreshold = 0; /* mark it as unfinished state */
g->strt.size = 0;
g->strt.nuse = 0;
g->strt.hash = NULL;
setnilvalue(registry(L));
luaZ_initbuffer(L, &g->buff);
g->panic = NULL;
g->gcstate = GCSpause;
g->rootgc = obj2gco(L);
g->sweepstrgc = 0;
g->sweepgc = &g->rootgc;
g->gray = NULL;
g->grayagain = NULL;
g->weak = NULL;
g->tmudata = NULL;
g->totalbytes = sizeof(LG);
g->gcpause = LUAI_GCPAUSE;
g->gcstepmul = LUAI_GCMUL;
g->gcdept = 0;
for (i=0; i<NUM_TAGS; i++) g->mt[i] = NULL;
if (luaD_rawrunprotected(L, f_luaopen, NULL) != 0) {
/* memory allocation error: free partial state */
close_state(L);
L = NULL;
}
else
luai_userstateopen(L);
return L;
}
static void callallgcTM (lua_State *L, void *ud) {
UNUSED(ud);
luaC_callGCTM(L); /* call GC metamethods for all udata */
}
LUA_API void lua_close (lua_State *L) {
L = G(L)->mainthread; /* only the main thread can be closed */
lua_lock(L);
luaF_close(L, L->stack); /* close all upvalues for this thread */
luaC_separateudata(L, 1); /* separate udata that have GC metamethods */
L->errfunc = 0; /* no error function during GC metamethods */
do { /* repeat until no more errors */
L->ci = L->base_ci;
L->base = L->top = L->ci->base;
L->nCcalls = L->baseCcalls = 0;
} while (luaD_rawrunprotected(L, callallgcTM, NULL) != 0);
lua_assert(G(L)->tmudata == NULL);
luai_userstateclose(L);
close_state(L);
}

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/*
** $Id: lstring.c,v 2.8.1.1 2007/12/27 13:02:25 roberto Exp $
** String table (keeps all strings handled by Lua)
** See Copyright Notice in lua.h
*/
#include <string.h>
#define lstring_c
#define LUA_CORE
#include "lua.h"
#include "lmem.h"
#include "lobject.h"
#include "lstate.h"
#include "lstring.h"
void luaS_resize (lua_State *L, int newsize) {
GCObject **newhash;
stringtable *tb;
int i;
if (G(L)->gcstate == GCSsweepstring)
return; /* cannot resize during GC traverse */
newhash = luaM_newvector(L, newsize, GCObject *);
tb = &G(L)->strt;
for (i=0; i<newsize; i++) newhash[i] = NULL;
/* rehash */
for (i=0; i<tb->size; i++) {
GCObject *p = tb->hash[i];
while (p) { /* for each node in the list */
GCObject *next = p->gch.next; /* save next */
unsigned int h = gco2ts(p)->hash;
int h1 = lmod(h, newsize); /* new position */
lua_assert(cast_int(h%newsize) == lmod(h, newsize));
p->gch.next = newhash[h1]; /* chain it */
newhash[h1] = p;
p = next;
}
}
luaM_freearray(L, tb->hash, tb->size, TString *);
tb->size = newsize;
tb->hash = newhash;
}
static TString *newlstr (lua_State *L, const char *str, size_t l,
unsigned int h) {
TString *ts;
stringtable *tb;
if (l+1 > (MAX_SIZET - sizeof(TString))/sizeof(char))
luaM_toobig(L);
ts = cast(TString *, luaM_malloc(L, (l+1)*sizeof(char)+sizeof(TString)));
ts->tsv.len = l;
ts->tsv.hash = h;
ts->tsv.marked = luaC_white(G(L));
ts->tsv.tt = LUA_TSTRING;
ts->tsv.reserved = 0;
memcpy(ts+1, str, l*sizeof(char));
((char *)(ts+1))[l] = '\0'; /* ending 0 */
tb = &G(L)->strt;
h = lmod(h, tb->size);
ts->tsv.next = tb->hash[h]; /* chain new entry */
tb->hash[h] = obj2gco(ts);
tb->nuse++;
if (tb->nuse > cast(lu_int32, tb->size) && tb->size <= MAX_INT/2)
luaS_resize(L, tb->size*2); /* too crowded */
return ts;
}
TString *luaS_newlstr (lua_State *L, const char *str, size_t l) {
GCObject *o;
unsigned int h = cast(unsigned int, l); /* seed */
size_t step = (l>>5)+1; /* if string is too long, don't hash all its chars */
size_t l1;
for (l1=l; l1>=step; l1-=step) /* compute hash */
h = h ^ ((h<<5)+(h>>2)+cast(unsigned char, str[l1-1]));
for (o = G(L)->strt.hash[lmod(h, G(L)->strt.size)];
o != NULL;
o = o->gch.next) {
TString *ts = rawgco2ts(o);
if (ts->tsv.len == l && (memcmp(str, getstr(ts), l) == 0)) {
/* string may be dead */
if (isdead(G(L), o)) changewhite(o);
return ts;
}
}
return newlstr(L, str, l, h); /* not found */
}
Udata *luaS_newudata (lua_State *L, size_t s, Table *e) {
Udata *u;
if (s > MAX_SIZET - sizeof(Udata))
luaM_toobig(L);
u = cast(Udata *, luaM_malloc(L, s + sizeof(Udata)));
u->uv.marked = luaC_white(G(L)); /* is not finalized */
u->uv.tt = LUA_TUSERDATA;
u->uv.len = s;
u->uv.metatable = NULL;
u->uv.env = e;
/* chain it on udata list (after main thread) */
u->uv.next = G(L)->mainthread->next;
G(L)->mainthread->next = obj2gco(u);
return u;
}

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/*
** $Id: lstrlib.c,v 1.132.1.4 2008/07/11 17:27:21 roberto Exp $
** Standard library for string operations and pattern-matching
** See Copyright Notice in lua.h
*/
#include <ctype.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define lstrlib_c
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
/* macro to `unsign' a character */
#define uchar(c) ((unsigned char)(c))
static int str_len (lua_State *L) {
size_t l;
luaL_checklstring(L, 1, &l);
lua_pushinteger(L, l);
return 1;
}
static ptrdiff_t posrelat (ptrdiff_t pos, size_t len) {
/* relative string position: negative means back from end */
if (pos < 0) pos += (ptrdiff_t)len + 1;
return (pos >= 0) ? pos : 0;
}
static int str_sub (lua_State *L) {
size_t l;
const char *s = luaL_checklstring(L, 1, &l);
ptrdiff_t start = posrelat(luaL_checkinteger(L, 2), l);
ptrdiff_t end = posrelat(luaL_optinteger(L, 3, -1), l);
if (start < 1) start = 1;
if (end > (ptrdiff_t)l) end = (ptrdiff_t)l;
if (start <= end)
lua_pushlstring(L, s+start-1, end-start+1);
else lua_pushliteral(L, "");
return 1;
}
static int str_reverse (lua_State *L) {
size_t l;
luaL_Buffer b;
const char *s = luaL_checklstring(L, 1, &l);
luaL_buffinit(L, &b);
while (l--) luaL_addchar(&b, s[l]);
luaL_pushresult(&b);
return 1;
}
static int str_lower (lua_State *L) {
size_t l;
size_t i;
luaL_Buffer b;
const char *s = luaL_checklstring(L, 1, &l);
luaL_buffinit(L, &b);
for (i=0; i<l; i++)
luaL_addchar(&b, tolower(uchar(s[i])));
luaL_pushresult(&b);
return 1;
}
static int str_upper (lua_State *L) {
size_t l;
size_t i;
luaL_Buffer b;
const char *s = luaL_checklstring(L, 1, &l);
luaL_buffinit(L, &b);
for (i=0; i<l; i++)
luaL_addchar(&b, toupper(uchar(s[i])));
luaL_pushresult(&b);
return 1;
}
static int str_rep (lua_State *L) {
size_t l;
luaL_Buffer b;
const char *s = luaL_checklstring(L, 1, &l);
int n = luaL_checkint(L, 2);
luaL_buffinit(L, &b);
while (n-- > 0)
luaL_addlstring(&b, s, l);
luaL_pushresult(&b);
return 1;
}
static int str_byte (lua_State *L) {
size_t l;
const char *s = luaL_checklstring(L, 1, &l);
ptrdiff_t posi = posrelat(luaL_optinteger(L, 2, 1), l);
ptrdiff_t pose = posrelat(luaL_optinteger(L, 3, posi), l);
int n, i;
if (posi <= 0) posi = 1;
if ((size_t)pose > l) pose = l;
if (posi > pose) return 0; /* empty interval; return no values */
n = (int)(pose - posi + 1);
if (posi + n <= pose) /* overflow? */
luaL_error(L, "string slice too long");
luaL_checkstack(L, n, "string slice too long");
for (i=0; i<n; i++)
lua_pushinteger(L, uchar(s[posi+i-1]));
return n;
}
static int str_char (lua_State *L) {
int n = lua_gettop(L); /* number of arguments */
int i;
luaL_Buffer b;
luaL_buffinit(L, &b);
for (i=1; i<=n; i++) {
int c = luaL_checkint(L, i);
luaL_argcheck(L, uchar(c) == c, i, "invalid value");
luaL_addchar(&b, uchar(c));
}
luaL_pushresult(&b);
return 1;
}
static int writer (lua_State *L, const void* b, size_t size, void* B) {
(void)L;
luaL_addlstring((luaL_Buffer*) B, (const char *)b, size);
return 0;
}
static int str_dump (lua_State *L) {
luaL_Buffer b;
luaL_checktype(L, 1, LUA_TFUNCTION);
lua_settop(L, 1);
luaL_buffinit(L,&b);
if (lua_dump(L, writer, &b) != 0)
luaL_error(L, "unable to dump given function");
luaL_pushresult(&b);
return 1;
}
/*
** {======================================================
** PATTERN MATCHING
** =======================================================
*/
#define CAP_UNFINISHED (-1)
#define CAP_POSITION (-2)
typedef struct MatchState {
const char *src_init; /* init of source string */
const char *src_end; /* end (`\0') of source string */
lua_State *L;
int level; /* total number of captures (finished or unfinished) */
struct {
const char *init;
ptrdiff_t len;
} capture[LUA_MAXCAPTURES];
} MatchState;
#define L_ESC '%'
#define SPECIALS "^$*+?.([%-"
static int check_capture (MatchState *ms, int l) {
l -= '1';
if (l < 0 || l >= ms->level || ms->capture[l].len == CAP_UNFINISHED)
return luaL_error(ms->L, "invalid capture index");
return l;
}
static int capture_to_close (MatchState *ms) {
int level = ms->level;
for (level--; level>=0; level--)
if (ms->capture[level].len == CAP_UNFINISHED) return level;
return luaL_error(ms->L, "invalid pattern capture");
}
static const char *classend (MatchState *ms, const char *p) {
switch (*p++) {
case L_ESC: {
if (*p == '\0')
luaL_error(ms->L, "malformed pattern (ends with " LUA_QL("%%") ")");
return p+1;
}
case '[': {
if (*p == '^') p++;
do { /* look for a `]' */
if (*p == '\0')
luaL_error(ms->L, "malformed pattern (missing " LUA_QL("]") ")");
if (*(p++) == L_ESC && *p != '\0')
p++; /* skip escapes (e.g. `%]') */
} while (*p != ']');
return p+1;
}
default: {
return p;
}
}
}
static int match_class (int c, int cl) {
int res;
switch (tolower(cl)) {
case 'a' : res = isalpha(c); break;
case 'c' : res = iscntrl(c); break;
case 'd' : res = isdigit(c); break;
case 'l' : res = islower(c); break;
case 'p' : res = ispunct(c); break;
case 's' : res = isspace(c); break;
case 'u' : res = isupper(c); break;
case 'w' : res = isalnum(c); break;
case 'x' : res = isxdigit(c); break;
case 'z' : res = (c == 0); break;
default: return (cl == c);
}
return (islower(cl) ? res : !res);
}
static int matchbracketclass (int c, const char *p, const char *ec) {
int sig = 1;
if (*(p+1) == '^') {
sig = 0;
p++; /* skip the `^' */
}
while (++p < ec) {
if (*p == L_ESC) {
p++;
if (match_class(c, uchar(*p)))
return sig;
}
else if ((*(p+1) == '-') && (p+2 < ec)) {
p+=2;
if (uchar(*(p-2)) <= c && c <= uchar(*p))
return sig;
}
else if (uchar(*p) == c) return sig;
}
return !sig;
}
static int singlematch (int c, const char *p, const char *ep) {
switch (*p) {
case '.': return 1; /* matches any char */
case L_ESC: return match_class(c, uchar(*(p+1)));
case '[': return matchbracketclass(c, p, ep-1);
default: return (uchar(*p) == c);
}
}
static const char *match (MatchState *ms, const char *s, const char *p);
static const char *matchbalance (MatchState *ms, const char *s,
const char *p) {
if (*p == 0 || *(p+1) == 0)
luaL_error(ms->L, "unbalanced pattern");
if (*s != *p) return NULL;
else {
int b = *p;
int e = *(p+1);
int cont = 1;
while (++s < ms->src_end) {
if (*s == e) {
if (--cont == 0) return s+1;
}
else if (*s == b) cont++;
}
}
return NULL; /* string ends out of balance */
}
static const char *max_expand (MatchState *ms, const char *s,
const char *p, const char *ep) {
ptrdiff_t i = 0; /* counts maximum expand for item */
while ((s+i)<ms->src_end && singlematch(uchar(*(s+i)), p, ep))
i++;
/* keeps trying to match with the maximum repetitions */
while (i>=0) {
const char *res = match(ms, (s+i), ep+1);
if (res) return res;
i--; /* else didn't match; reduce 1 repetition to try again */
}
return NULL;
}
static const char *min_expand (MatchState *ms, const char *s,
const char *p, const char *ep) {
for (;;) {
const char *res = match(ms, s, ep+1);
if (res != NULL)
return res;
else if (s<ms->src_end && singlematch(uchar(*s), p, ep))
s++; /* try with one more repetition */
else return NULL;
}
}
static const char *start_capture (MatchState *ms, const char *s,
const char *p, int what) {
const char *res;
int level = ms->level;
if (level >= LUA_MAXCAPTURES) luaL_error(ms->L, "too many captures");
ms->capture[level].init = s;
ms->capture[level].len = what;
ms->level = level+1;
if ((res=match(ms, s, p)) == NULL) /* match failed? */
ms->level--; /* undo capture */
return res;
}
static const char *end_capture (MatchState *ms, const char *s,
const char *p) {
int l = capture_to_close(ms);
const char *res;
ms->capture[l].len = s - ms->capture[l].init; /* close capture */
if ((res = match(ms, s, p)) == NULL) /* match failed? */
ms->capture[l].len = CAP_UNFINISHED; /* undo capture */
return res;
}
static const char *match_capture (MatchState *ms, const char *s, int l) {
size_t len;
l = check_capture(ms, l);
len = ms->capture[l].len;
if ((size_t)(ms->src_end-s) >= len &&
memcmp(ms->capture[l].init, s, len) == 0)
return s+len;
else return NULL;
}
static const char *match (MatchState *ms, const char *s, const char *p) {
init: /* using goto's to optimize tail recursion */
switch (*p) {
case '(': { /* start capture */
if (*(p+1) == ')') /* position capture? */
return start_capture(ms, s, p+2, CAP_POSITION);
else
return start_capture(ms, s, p+1, CAP_UNFINISHED);
}
case ')': { /* end capture */
return end_capture(ms, s, p+1);
}
case L_ESC: {
switch (*(p+1)) {
case 'b': { /* balanced string? */
s = matchbalance(ms, s, p+2);
if (s == NULL) return NULL;
p+=4; goto init; /* else return match(ms, s, p+4); */
}
case 'f': { /* frontier? */
const char *ep; char previous;
p += 2;
if (*p != '[')
luaL_error(ms->L, "missing " LUA_QL("[") " after "
LUA_QL("%%f") " in pattern");
ep = classend(ms, p); /* points to what is next */
previous = (s == ms->src_init) ? '\0' : *(s-1);
if (matchbracketclass(uchar(previous), p, ep-1) ||
!matchbracketclass(uchar(*s), p, ep-1)) return NULL;
p=ep; goto init; /* else return match(ms, s, ep); */
}
default: {
if (isdigit(uchar(*(p+1)))) { /* capture results (%0-%9)? */
s = match_capture(ms, s, uchar(*(p+1)));
if (s == NULL) return NULL;
p+=2; goto init; /* else return match(ms, s, p+2) */
}
goto dflt; /* case default */
}
}
}
case '\0': { /* end of pattern */
return s; /* match succeeded */
}
case '$': {
if (*(p+1) == '\0') /* is the `$' the last char in pattern? */
return (s == ms->src_end) ? s : NULL; /* check end of string */
else goto dflt;
}
default: dflt: { /* it is a pattern item */
const char *ep = classend(ms, p); /* points to what is next */
int m = s<ms->src_end && singlematch(uchar(*s), p, ep);
switch (*ep) {
case '?': { /* optional */
const char *res;
if (m && ((res=match(ms, s+1, ep+1)) != NULL))
return res;
p=ep+1; goto init; /* else return match(ms, s, ep+1); */
}
case '*': { /* 0 or more repetitions */
return max_expand(ms, s, p, ep);
}
case '+': { /* 1 or more repetitions */
return (m ? max_expand(ms, s+1, p, ep) : NULL);
}
case '-': { /* 0 or more repetitions (minimum) */
return min_expand(ms, s, p, ep);
}
default: {
if (!m) return NULL;
s++; p=ep; goto init; /* else return match(ms, s+1, ep); */
}
}
}
}
}
static const char *lmemfind (const char *s1, size_t l1,
const char *s2, size_t l2) {
if (l2 == 0) return s1; /* empty strings are everywhere */
else if (l2 > l1) return NULL; /* avoids a negative `l1' */
else {
const char *init; /* to search for a `*s2' inside `s1' */
l2--; /* 1st char will be checked by `memchr' */
l1 = l1-l2; /* `s2' cannot be found after that */
while (l1 > 0 && (init = (const char *)memchr(s1, *s2, l1)) != NULL) {
init++; /* 1st char is already checked */
if (memcmp(init, s2+1, l2) == 0)
return init-1;
else { /* correct `l1' and `s1' to try again */
l1 -= init-s1;
s1 = init;
}
}
return NULL; /* not found */
}
}
static void push_onecapture (MatchState *ms, int i, const char *s,
const char *e) {
if (i >= ms->level) {
if (i == 0) /* ms->level == 0, too */
lua_pushlstring(ms->L, s, e - s); /* add whole match */
else
luaL_error(ms->L, "invalid capture index");
}
else {
ptrdiff_t l = ms->capture[i].len;
if (l == CAP_UNFINISHED) luaL_error(ms->L, "unfinished capture");
if (l == CAP_POSITION)
lua_pushinteger(ms->L, ms->capture[i].init - ms->src_init + 1);
else
lua_pushlstring(ms->L, ms->capture[i].init, l);
}
}
static int push_captures (MatchState *ms, const char *s, const char *e) {
int i;
int nlevels = (ms->level == 0 && s) ? 1 : ms->level;
luaL_checkstack(ms->L, nlevels, "too many captures");
for (i = 0; i < nlevels; i++)
push_onecapture(ms, i, s, e);
return nlevels; /* number of strings pushed */
}
static int str_find_aux (lua_State *L, int find) {
size_t l1, l2;
const char *s = luaL_checklstring(L, 1, &l1);
const char *p = luaL_checklstring(L, 2, &l2);
ptrdiff_t init = posrelat(luaL_optinteger(L, 3, 1), l1) - 1;
if (init < 0) init = 0;
else if ((size_t)(init) > l1) init = (ptrdiff_t)l1;
if (find && (lua_toboolean(L, 4) || /* explicit request? */
strpbrk(p, SPECIALS) == NULL)) { /* or no special characters? */
/* do a plain search */
const char *s2 = lmemfind(s+init, l1-init, p, l2);
if (s2) {
lua_pushinteger(L, s2-s+1);
lua_pushinteger(L, s2-s+l2);
return 2;
}
}
else {
MatchState ms;
int anchor = (*p == '^') ? (p++, 1) : 0;
const char *s1=s+init;
ms.L = L;
ms.src_init = s;
ms.src_end = s+l1;
do {
const char *res;
ms.level = 0;
if ((res=match(&ms, s1, p)) != NULL) {
if (find) {
lua_pushinteger(L, s1-s+1); /* start */
lua_pushinteger(L, res-s); /* end */
return push_captures(&ms, NULL, 0) + 2;
}
else
return push_captures(&ms, s1, res);
}
} while (s1++ < ms.src_end && !anchor);
}
lua_pushnil(L); /* not found */
return 1;
}
static int str_find (lua_State *L) {
return str_find_aux(L, 1);
}
static int str_match (lua_State *L) {
return str_find_aux(L, 0);
}
static int gmatch_aux (lua_State *L) {
MatchState ms;
size_t ls;
const char *s = lua_tolstring(L, lua_upvalueindex(1), &ls);
const char *p = lua_tostring(L, lua_upvalueindex(2));
const char *src;
ms.L = L;
ms.src_init = s;
ms.src_end = s+ls;
for (src = s + (size_t)lua_tointeger(L, lua_upvalueindex(3));
src <= ms.src_end;
src++) {
const char *e;
ms.level = 0;
if ((e = match(&ms, src, p)) != NULL) {
lua_Integer newstart = e-s;
if (e == src) newstart++; /* empty match? go at least one position */
lua_pushinteger(L, newstart);
lua_replace(L, lua_upvalueindex(3));
return push_captures(&ms, src, e);
}
}
return 0; /* not found */
}
static int gmatch (lua_State *L) {
luaL_checkstring(L, 1);
luaL_checkstring(L, 2);
lua_settop(L, 2);
lua_pushinteger(L, 0);
lua_pushcclosure(L, gmatch_aux, 3);
return 1;
}
static int gfind_nodef (lua_State *L) {
return luaL_error(L, LUA_QL("string.gfind") " was renamed to "
LUA_QL("string.gmatch"));
}
static void add_s (MatchState *ms, luaL_Buffer *b, const char *s,
const char *e) {
size_t l, i;
const char *news = lua_tolstring(ms->L, 3, &l);
for (i = 0; i < l; i++) {
if (news[i] != L_ESC)
luaL_addchar(b, news[i]);
else {
i++; /* skip ESC */
if (!isdigit(uchar(news[i])))
luaL_addchar(b, news[i]);
else if (news[i] == '0')
luaL_addlstring(b, s, e - s);
else {
push_onecapture(ms, news[i] - '1', s, e);
luaL_addvalue(b); /* add capture to accumulated result */
}
}
}
}
static void add_value (MatchState *ms, luaL_Buffer *b, const char *s,
const char *e) {
lua_State *L = ms->L;
switch (lua_type(L, 3)) {
case LUA_TNUMBER:
case LUA_TSTRING: {
add_s(ms, b, s, e);
return;
}
case LUA_TFUNCTION: {
int n;
lua_pushvalue(L, 3);
n = push_captures(ms, s, e);
lua_call(L, n, 1);
break;
}
case LUA_TTABLE: {
push_onecapture(ms, 0, s, e);
lua_gettable(L, 3);
break;
}
}
if (!lua_toboolean(L, -1)) { /* nil or false? */
lua_pop(L, 1);
lua_pushlstring(L, s, e - s); /* keep original text */
}
else if (!lua_isstring(L, -1))
luaL_error(L, "invalid replacement value (a %s)", luaL_typename(L, -1));
luaL_addvalue(b); /* add result to accumulator */
}
static int str_gsub (lua_State *L) {
size_t srcl;
const char *src = luaL_checklstring(L, 1, &srcl);
const char *p = luaL_checkstring(L, 2);
int tr = lua_type(L, 3);
int max_s = luaL_optint(L, 4, srcl+1);
int anchor = (*p == '^') ? (p++, 1) : 0;
int n = 0;
MatchState ms;
luaL_Buffer b;
luaL_argcheck(L, tr == LUA_TNUMBER || tr == LUA_TSTRING ||
tr == LUA_TFUNCTION || tr == LUA_TTABLE, 3,
"string/function/table expected");
luaL_buffinit(L, &b);
ms.L = L;
ms.src_init = src;
ms.src_end = src+srcl;
while (n < max_s) {
const char *e;
ms.level = 0;
e = match(&ms, src, p);
if (e) {
n++;
add_value(&ms, &b, src, e);
}
if (e && e>src) /* non empty match? */
src = e; /* skip it */
else if (src < ms.src_end)
luaL_addchar(&b, *src++);
else break;
if (anchor) break;
}
luaL_addlstring(&b, src, ms.src_end-src);
luaL_pushresult(&b);
lua_pushinteger(L, n); /* number of substitutions */
return 2;
}
/* }====================================================== */
/* maximum size of each formatted item (> len(format('%99.99f', -1e308))) */
#define MAX_ITEM 512
/* valid flags in a format specification */
#define FLAGS "-+ #0"
/*
** maximum size of each format specification (such as '%-099.99d')
** (+10 accounts for %99.99x plus margin of error)
*/
#define MAX_FORMAT (sizeof(FLAGS) + sizeof(LUA_INTFRMLEN) + 10)
static void addquoted (lua_State *L, luaL_Buffer *b, int arg) {
size_t l;
const char *s = luaL_checklstring(L, arg, &l);
luaL_addchar(b, '"');
while (l--) {
switch (*s) {
case '"': case '\\': case '\n': {
luaL_addchar(b, '\\');
luaL_addchar(b, *s);
break;
}
case '\r': {
luaL_addlstring(b, "\\r", 2);
break;
}
case '\0': {
luaL_addlstring(b, "\\000", 4);
break;
}
default: {
luaL_addchar(b, *s);
break;
}
}
s++;
}
luaL_addchar(b, '"');
}
static const char *scanformat (lua_State *L, const char *strfrmt, char *form) {
const char *p = strfrmt;
while (*p != '\0' && strchr(FLAGS, *p) != NULL) p++; /* skip flags */
if ((size_t)(p - strfrmt) >= sizeof(FLAGS))
luaL_error(L, "invalid format (repeated flags)");
if (isdigit(uchar(*p))) p++; /* skip width */
if (isdigit(uchar(*p))) p++; /* (2 digits at most) */
if (*p == '.') {
p++;
if (isdigit(uchar(*p))) p++; /* skip precision */
if (isdigit(uchar(*p))) p++; /* (2 digits at most) */
}
if (isdigit(uchar(*p)))
luaL_error(L, "invalid format (width or precision too long)");
*(form++) = '%';
strncpy(form, strfrmt, p - strfrmt + 1);
form += p - strfrmt + 1;
*form = '\0';
return p;
}
static void addintlen (char *form) {
size_t l = strlen(form);
char spec = form[l - 1];
strcpy(form + l - 1, LUA_INTFRMLEN);
form[l + sizeof(LUA_INTFRMLEN) - 2] = spec;
form[l + sizeof(LUA_INTFRMLEN) - 1] = '\0';
}
static int str_format (lua_State *L) {
int arg = 1;
size_t sfl;
const char *strfrmt = luaL_checklstring(L, arg, &sfl);
const char *strfrmt_end = strfrmt+sfl;
luaL_Buffer b;
luaL_buffinit(L, &b);
while (strfrmt < strfrmt_end) {
if (*strfrmt != L_ESC)
luaL_addchar(&b, *strfrmt++);
else if (*++strfrmt == L_ESC)
luaL_addchar(&b, *strfrmt++); /* %% */
else { /* format item */
char form[MAX_FORMAT]; /* to store the format (`%...') */
char buff[MAX_ITEM]; /* to store the formatted item */
arg++;
strfrmt = scanformat(L, strfrmt, form);
switch (*strfrmt++) {
case 'c': {
sprintf(buff, form, (int)luaL_checknumber(L, arg));
break;
}
case 'd': case 'i': {
addintlen(form);
sprintf(buff, form, (LUA_INTFRM_T)luaL_checknumber(L, arg));
break;
}
case 'o': case 'u': case 'x': case 'X': {
addintlen(form);
sprintf(buff, form, (unsigned LUA_INTFRM_T)luaL_checknumber(L, arg));
break;
}
case 'e': case 'E': case 'f':
case 'g': case 'G': {
sprintf(buff, form, (double)luaL_checknumber(L, arg));
break;
}
case 'q': {
addquoted(L, &b, arg);
continue; /* skip the 'addsize' at the end */
}
case 's': {
size_t l;
const char *s = luaL_checklstring(L, arg, &l);
if (!strchr(form, '.') && l >= 100) {
/* no precision and string is too long to be formatted;
keep original string */
lua_pushvalue(L, arg);
luaL_addvalue(&b);
continue; /* skip the `addsize' at the end */
}
else {
sprintf(buff, form, s);
break;
}
}
default: { /* also treat cases `pnLlh' */
return luaL_error(L, "invalid option " LUA_QL("%%%c") " to "
LUA_QL("format"), *(strfrmt - 1));
}
}
luaL_addlstring(&b, buff, strlen(buff));
}
}
luaL_pushresult(&b);
return 1;
}
static const luaL_Reg strlib[] = {
{"byte", str_byte},
{"char", str_char},
{"dump", str_dump},
{"find", str_find},
{"format", str_format},
{"gfind", gfind_nodef},
{"gmatch", gmatch},
{"gsub", str_gsub},
{"len", str_len},
{"lower", str_lower},
{"match", str_match},
{"rep", str_rep},
{"reverse", str_reverse},
{"sub", str_sub},
{"upper", str_upper},
{NULL, NULL}
};
static void createmetatable (lua_State *L) {
lua_createtable(L, 0, 1); /* create metatable for strings */
lua_pushliteral(L, ""); /* dummy string */
lua_pushvalue(L, -2);
lua_setmetatable(L, -2); /* set string metatable */
lua_pop(L, 1); /* pop dummy string */
lua_pushvalue(L, -2); /* string library... */
lua_setfield(L, -2, "__index"); /* ...is the __index metamethod */
lua_pop(L, 1); /* pop metatable */
}
/*
** Open string library
*/
LUALIB_API int luaopen_string (lua_State *L) {
luaL_register(L, LUA_STRLIBNAME, strlib);
#if defined(LUA_COMPAT_GFIND)
lua_getfield(L, -1, "gmatch");
lua_setfield(L, -2, "gfind");
#endif
createmetatable(L);
return 1;
}

588
desmume/src/windows/lua/lua-5.1.4/src/ltable.c
View File

@ -1,588 +0,0 @@
/*
** $Id: ltable.c,v 2.32.1.2 2007/12/28 15:32:23 roberto Exp $
** Lua tables (hash)
** See Copyright Notice in lua.h
*/
/*
** Implementation of tables (aka arrays, objects, or hash tables).
** Tables keep its elements in two parts: an array part and a hash part.
** Non-negative integer keys are all candidates to be kept in the array
** part. The actual size of the array is the largest `n' such that at
** least half the slots between 0 and n are in use.
** Hash uses a mix of chained scatter table with Brent's variation.
** A main invariant of these tables is that, if an element is not
** in its main position (i.e. the `original' position that its hash gives
** to it), then the colliding element is in its own main position.
** Hence even when the load factor reaches 100%, performance remains good.
*/
#include <math.h>
#include <string.h>
#define ltable_c
#define LUA_CORE
#include "lua.h"
#include "ldebug.h"
#include "ldo.h"
#include "lgc.h"
#include "lmem.h"
#include "lobject.h"
#include "lstate.h"
#include "ltable.h"
/*
** max size of array part is 2^MAXBITS
*/
#if LUAI_BITSINT > 26
#define MAXBITS 26
#else
#define MAXBITS (LUAI_BITSINT-2)
#endif
#define MAXASIZE (1 << MAXBITS)
#define hashpow2(t,n) (gnode(t, lmod((n), sizenode(t))))
#define hashstr(t,str) hashpow2(t, (str)->tsv.hash)
#define hashboolean(t,p) hashpow2(t, p)
/*
** for some types, it is better to avoid modulus by power of 2, as
** they tend to have many 2 factors.
*/
#define hashmod(t,n) (gnode(t, ((n) % ((sizenode(t)-1)|1))))
#define hashpointer(t,p) hashmod(t, IntPoint(p))
/*
** number of ints inside a lua_Number
*/
#define numints cast_int(sizeof(lua_Number)/sizeof(int))
#define dummynode (&dummynode_)
static const Node dummynode_ = {
{{NULL}, LUA_TNIL}, /* value */
{{{NULL}, LUA_TNIL, NULL}} /* key */
};
/*
** hash for lua_Numbers
*/
static Node *hashnum (const Table *t, lua_Number n) {
unsigned int a[numints];
int i;
if (luai_numeq(n, 0)) /* avoid problems with -0 */
return gnode(t, 0);
memcpy(a, &n, sizeof(a));
for (i = 1; i < numints; i++) a[0] += a[i];
return hashmod(t, a[0]);
}
/*
** returns the `main' position of an element in a table (that is, the index
** of its hash value)
*/
static Node *mainposition (const Table *t, const TValue *key) {
switch (ttype(key)) {
case LUA_TNUMBER:
return hashnum(t, nvalue(key));
case LUA_TSTRING:
return hashstr(t, rawtsvalue(key));
case LUA_TBOOLEAN:
return hashboolean(t, bvalue(key));
case LUA_TLIGHTUSERDATA:
return hashpointer(t, pvalue(key));
default:
return hashpointer(t, gcvalue(key));
}
}
/*
** returns the index for `key' if `key' is an appropriate key to live in
** the array part of the table, -1 otherwise.
*/
static int arrayindex (const TValue *key) {
if (ttisnumber(key)) {
lua_Number n = nvalue(key);
int k;
lua_number2int(k, n);
if (luai_numeq(cast_num(k), n))
return k;
}
return -1; /* `key' did not match some condition */
}
/*
** returns the index of a `key' for table traversals. First goes all
** elements in the array part, then elements in the hash part. The
** beginning of a traversal is signalled by -1.
*/
static int findindex (lua_State *L, Table *t, StkId key) {
int i;
if (ttisnil(key)) return -1; /* first iteration */
i = arrayindex(key);
if (0 < i && i <= t->sizearray) /* is `key' inside array part? */
return i-1; /* yes; that's the index (corrected to C) */
else {
Node *n = mainposition(t, key);
do { /* check whether `key' is somewhere in the chain */
/* key may be dead already, but it is ok to use it in `next' */
if (luaO_rawequalObj(key2tval(n), key) ||
(ttype(gkey(n)) == LUA_TDEADKEY && iscollectable(key) &&
gcvalue(gkey(n)) == gcvalue(key))) {
i = cast_int(n - gnode(t, 0)); /* key index in hash table */
/* hash elements are numbered after array ones */
return i + t->sizearray;
}
else n = gnext(n);
} while (n);
luaG_runerror(L, "invalid key to " LUA_QL("next")); /* key not found */
return 0; /* to avoid warnings */
}
}
int luaH_next (lua_State *L, Table *t, StkId key) {
int i = findindex(L, t, key); /* find original element */
for (i++; i < t->sizearray; i++) { /* try first array part */
if (!ttisnil(&t->array[i])) { /* a non-nil value? */
setnvalue(key, cast_num(i+1));
setobj2s(L, key+1, &t->array[i]);
return 1;
}
}
for (i -= t->sizearray; i < sizenode(t); i++) { /* then hash part */
if (!ttisnil(gval(gnode(t, i)))) { /* a non-nil value? */
setobj2s(L, key, key2tval(gnode(t, i)));
setobj2s(L, key+1, gval(gnode(t, i)));
return 1;
}
}
return 0; /* no more elements */
}
/*
** {=============================================================
** Rehash
** ==============================================================
*/
static int computesizes (int nums[], int *narray) {
int i;
int twotoi; /* 2^i */
int a = 0; /* number of elements smaller than 2^i */
int na = 0; /* number of elements to go to array part */
int n = 0; /* optimal size for array part */
for (i = 0, twotoi = 1; twotoi/2 < *narray; i++, twotoi *= 2) {
if (nums[i] > 0) {
a += nums[i];
if (a > twotoi/2) { /* more than half elements present? */
n = twotoi; /* optimal size (till now) */
na = a; /* all elements smaller than n will go to array part */
}
}
if (a == *narray) break; /* all elements already counted */
}
*narray = n;
lua_assert(*narray/2 <= na && na <= *narray);
return na;
}
static int countint (const TValue *key, int *nums) {
int k = arrayindex(key);
if (0 < k && k <= MAXASIZE) { /* is `key' an appropriate array index? */
nums[ceillog2(k)]++; /* count as such */
return 1;
}
else
return 0;
}
static int numusearray (const Table *t, int *nums) {
int lg;
int ttlg; /* 2^lg */
int ause = 0; /* summation of `nums' */
int i = 1; /* count to traverse all array keys */
for (lg=0, ttlg=1; lg<=MAXBITS; lg++, ttlg*=2) { /* for each slice */
int lc = 0; /* counter */
int lim = ttlg;
if (lim > t->sizearray) {
lim = t->sizearray; /* adjust upper limit */
if (i > lim)
break; /* no more elements to count */
}
/* count elements in range (2^(lg-1), 2^lg] */
for (; i <= lim; i++) {
if (!ttisnil(&t->array[i-1]))
lc++;
}
nums[lg] += lc;
ause += lc;
}
return ause;
}
static int numusehash (const Table *t, int *nums, int *pnasize) {
int totaluse = 0; /* total number of elements */
int ause = 0; /* summation of `nums' */
int i = sizenode(t);
while (i--) {
Node *n = &t->node[i];
if (!ttisnil(gval(n))) {
ause += countint(key2tval(n), nums);
totaluse++;
}
}
*pnasize += ause;
return totaluse;
}
static void setarrayvector (lua_State *L, Table *t, int size) {
int i;
luaM_reallocvector(L, t->array, t->sizearray, size, TValue);
for (i=t->sizearray; i<size; i++)
setnilvalue(&t->array[i]);
t->sizearray = size;
}
static void setnodevector (lua_State *L, Table *t, int size) {
int lsize;
if (size == 0) { /* no elements to hash part? */
t->node = cast(Node *, dummynode); /* use common `dummynode' */
lsize = 0;
}
else {
int i;
lsize = ceillog2(size);
if (lsize > MAXBITS)
luaG_runerror(L, "table overflow");
size = twoto(lsize);
t->node = luaM_newvector(L, size, Node);
for (i=0; i<size; i++) {
Node *n = gnode(t, i);
gnext(n) = NULL;
setnilvalue(gkey(n));
setnilvalue(gval(n));
}
}
t->lsizenode = cast_byte(lsize);
t->lastfree = gnode(t, size); /* all positions are free */
}
static void resize (lua_State *L, Table *t, int nasize, int nhsize) {
int i;
int oldasize = t->sizearray;
int oldhsize = t->lsizenode;
Node *nold = t->node; /* save old hash ... */
if (nasize > oldasize) /* array part must grow? */
setarrayvector(L, t, nasize);
/* create new hash part with appropriate size */
setnodevector(L, t, nhsize);
if (nasize < oldasize) { /* array part must shrink? */
t->sizearray = nasize;
/* re-insert elements from vanishing slice */
for (i=nasize; i<oldasize; i++) {
if (!ttisnil(&t->array[i]))
setobjt2t(L, luaH_setnum(L, t, i+1), &t->array[i]);
}
/* shrink array */
luaM_reallocvector(L, t->array, oldasize, nasize, TValue);
}
/* re-insert elements from hash part */
for (i = twoto(oldhsize) - 1; i >= 0; i--) {
Node *old = nold+i;
if (!ttisnil(gval(old)))
setobjt2t(L, luaH_set(L, t, key2tval(old)), gval(old));
}
if (nold != dummynode)
luaM_freearray(L, nold, twoto(oldhsize), Node); /* free old array */
}
void luaH_resizearray (lua_State *L, Table *t, int nasize) {
int nsize = (t->node == dummynode) ? 0 : sizenode(t);
resize(L, t, nasize, nsize);
}
static void rehash (lua_State *L, Table *t, const TValue *ek) {
int nasize, na;
int nums[MAXBITS+1]; /* nums[i] = number of keys between 2^(i-1) and 2^i */
int i;
int totaluse;
for (i=0; i<=MAXBITS; i++) nums[i] = 0; /* reset counts */
nasize = numusearray(t, nums); /* count keys in array part */
totaluse = nasize; /* all those keys are integer keys */
totaluse += numusehash(t, nums, &nasize); /* count keys in hash part */
/* count extra key */
nasize += countint(ek, nums);
totaluse++;
/* compute new size for array part */
na = computesizes(nums, &nasize);
/* resize the table to new computed sizes */
resize(L, t, nasize, totaluse - na);
}
/*
** }=============================================================
*/
Table *luaH_new (lua_State *L, int narray, int nhash) {
Table *t = luaM_new(L, Table);
luaC_link(L, obj2gco(t), LUA_TTABLE);
t->metatable = NULL;
t->flags = cast_byte(~0);
/* temporary values (kept only if some malloc fails) */
t->array = NULL;
t->sizearray = 0;
t->lsizenode = 0;
t->node = cast(Node *, dummynode);
setarrayvector(L, t, narray);
setnodevector(L, t, nhash);
return t;
}
void luaH_free (lua_State *L, Table *t) {
if (t->node != dummynode)
luaM_freearray(L, t->node, sizenode(t), Node);
luaM_freearray(L, t->array, t->sizearray, TValue);
luaM_free(L, t);
}
static Node *getfreepos (Table *t) {
while (t->lastfree-- > t->node) {
if (ttisnil(gkey(t->lastfree)))
return t->lastfree;
}
return NULL; /* could not find a free place */
}
/*
** inserts a new key into a hash table; first, check whether key's main
** position is free. If not, check whether colliding node is in its main
** position or not: if it is not, move colliding node to an empty place and
** put new key in its main position; otherwise (colliding node is in its main
** position), new key goes to an empty position.
*/
static TValue *newkey (lua_State *L, Table *t, const TValue *key) {
Node *mp = mainposition(t, key);
if (!ttisnil(gval(mp)) || mp == dummynode) {
Node *othern;
Node *n = getfreepos(t); /* get a free place */
if (n == NULL) { /* cannot find a free place? */
rehash(L, t, key); /* grow table */
return luaH_set(L, t, key); /* re-insert key into grown table */
}
lua_assert(n != dummynode);
othern = mainposition(t, key2tval(mp));
if (othern != mp) { /* is colliding node out of its main position? */
/* yes; move colliding node into free position */
while (gnext(othern) != mp) othern = gnext(othern); /* find previous */
gnext(othern) = n; /* redo the chain with `n' in place of `mp' */
*n = *mp; /* copy colliding node into free pos. (mp->next also goes) */
gnext(mp) = NULL; /* now `mp' is free */
setnilvalue(gval(mp));
}
else { /* colliding node is in its own main position */
/* new node will go into free position */
gnext(n) = gnext(mp); /* chain new position */
gnext(mp) = n;
mp = n;
}
}
gkey(mp)->value = key->value; gkey(mp)->tt = key->tt;
luaC_barriert(L, t, key);
lua_assert(ttisnil(gval(mp)));
return gval(mp);
}
/*
** search function for integers
*/
const TValue *luaH_getnum (Table *t, int key) {
/* (1 <= key && key <= t->sizearray) */
if (cast(unsigned int, key-1) < cast(unsigned int, t->sizearray))
return &t->array[key-1];
else {
lua_Number nk = cast_num(key);
Node *n = hashnum(t, nk);
do { /* check whether `key' is somewhere in the chain */
if (ttisnumber(gkey(n)) && luai_numeq(nvalue(gkey(n)), nk))
return gval(n); /* that's it */
else n = gnext(n);
} while (n);
return luaO_nilobject;
}
}
/*
** search function for strings
*/
const TValue *luaH_getstr (Table *t, TString *key) {
Node *n = hashstr(t, key);
do { /* check whether `key' is somewhere in the chain */
if (ttisstring(gkey(n)) && rawtsvalue(gkey(n)) == key)
return gval(n); /* that's it */
else n = gnext(n);
} while (n);
return luaO_nilobject;
}
/*
** main search function
*/
const TValue *luaH_get (Table *t, const TValue *key) {
switch (ttype(key)) {
case LUA_TNIL: return luaO_nilobject;
case LUA_TSTRING: return luaH_getstr(t, rawtsvalue(key));
case LUA_TNUMBER: {
int k;
lua_Number n = nvalue(key);
lua_number2int(k, n);
if (luai_numeq(cast_num(k), nvalue(key))) /* index is int? */
return luaH_getnum(t, k); /* use specialized version */
/* else go through */
}
default: {
Node *n = mainposition(t, key);
do { /* check whether `key' is somewhere in the chain */
if (luaO_rawequalObj(key2tval(n), key))
return gval(n); /* that's it */
else n = gnext(n);
} while (n);
return luaO_nilobject;
}
}
}
TValue *luaH_set (lua_State *L, Table *t, const TValue *key) {
const TValue *p = luaH_get(t, key);
t->flags = 0;
if (p != luaO_nilobject)
return cast(TValue *, p);
else {
if (ttisnil(key)) luaG_runerror(L, "table index is nil");
else if (ttisnumber(key) && luai_numisnan(nvalue(key)))
luaG_runerror(L, "table index is NaN");
return newkey(L, t, key);
}
}
TValue *luaH_setnum (lua_State *L, Table *t, int key) {
const TValue *p = luaH_getnum(t, key);
if (p != luaO_nilobject)
return cast(TValue *, p);
else {
TValue k;
setnvalue(&k, cast_num(key));
return newkey(L, t, &k);
}
}
TValue *luaH_setstr (lua_State *L, Table *t, TString *key) {
const TValue *p = luaH_getstr(t, key);
if (p != luaO_nilobject)
return cast(TValue *, p);
else {
TValue k;
setsvalue(L, &k, key);
return newkey(L, t, &k);
}
}
static int unbound_search (Table *t, unsigned int j) {
unsigned int i = j; /* i is zero or a present index */
j++;
/* find `i' and `j' such that i is present and j is not */
while (!ttisnil(luaH_getnum(t, j))) {
i = j;
j *= 2;
if (j > cast(unsigned int, MAX_INT)) { /* overflow? */
/* table was built with bad purposes: resort to linear search */
i = 1;
while (!ttisnil(luaH_getnum(t, i))) i++;
return i - 1;
}
}
/* now do a binary search between them */
while (j - i > 1) {
unsigned int m = (i+j)/2;
if (ttisnil(luaH_getnum(t, m))) j = m;
else i = m;
}
return i;
}
/*
** Try to find a boundary in table `t'. A `boundary' is an integer index
** such that t[i] is non-nil and t[i+1] is nil (and 0 if t[1] is nil).
*/
int luaH_getn (Table *t) {
unsigned int j = t->sizearray;
if (j > 0 && ttisnil(&t->array[j - 1])) {
/* there is a boundary in the array part: (binary) search for it */
unsigned int i = 0;
while (j - i > 1) {
unsigned int m = (i+j)/2;
if (ttisnil(&t->array[m - 1])) j = m;
else i = m;
}
return i;
}
/* else must find a boundary in hash part */
else if (t->node == dummynode) /* hash part is empty? */
return j; /* that is easy... */
else return unbound_search(t, j);
}
#if defined(LUA_DEBUG)
Node *luaH_mainposition (const Table *t, const TValue *key) {
return mainposition(t, key);
}
int luaH_isdummy (Node *n) { return n == dummynode; }
#endif

287
desmume/src/windows/lua/lua-5.1.4/src/ltablib.c
View File

@ -1,287 +0,0 @@
/*
** $Id: ltablib.c,v 1.38.1.3 2008/02/14 16:46:58 roberto Exp $
** Library for Table Manipulation
** See Copyright Notice in lua.h
*/
#include <stddef.h>
#define ltablib_c
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
#define aux_getn(L,n) (luaL_checktype(L, n, LUA_TTABLE), luaL_getn(L, n))
static int foreachi (lua_State *L) {
int i;
int n = aux_getn(L, 1);
luaL_checktype(L, 2, LUA_TFUNCTION);
for (i=1; i <= n; i++) {
lua_pushvalue(L, 2); /* function */
lua_pushinteger(L, i); /* 1st argument */
lua_rawgeti(L, 1, i); /* 2nd argument */
lua_call(L, 2, 1);
if (!lua_isnil(L, -1))
return 1;
lua_pop(L, 1); /* remove nil result */
}
return 0;
}
static int foreach (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
luaL_checktype(L, 2, LUA_TFUNCTION);
lua_pushnil(L); /* first key */
while (lua_next(L, 1)) {
lua_pushvalue(L, 2); /* function */
lua_pushvalue(L, -3); /* key */
lua_pushvalue(L, -3); /* value */
lua_call(L, 2, 1);
if (!lua_isnil(L, -1))
return 1;
lua_pop(L, 2); /* remove value and result */
}
return 0;
}
static int maxn (lua_State *L) {
lua_Number max = 0;
luaL_checktype(L, 1, LUA_TTABLE);
lua_pushnil(L); /* first key */
while (lua_next(L, 1)) {
lua_pop(L, 1); /* remove value */
if (lua_type(L, -1) == LUA_TNUMBER) {
lua_Number v = lua_tonumber(L, -1);
if (v > max) max = v;
}
}
lua_pushnumber(L, max);
return 1;
}
static int getn (lua_State *L) {
lua_pushinteger(L, aux_getn(L, 1));
return 1;
}
static int setn (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
#ifndef luaL_setn
luaL_setn(L, 1, luaL_checkint(L, 2));
#else
luaL_error(L, LUA_QL("setn") " is obsolete");
#endif
lua_pushvalue(L, 1);
return 1;
}
static int tinsert (lua_State *L) {
int e = aux_getn(L, 1) + 1; /* first empty element */
int pos; /* where to insert new element */
switch (lua_gettop(L)) {
case 2: { /* called with only 2 arguments */
pos = e; /* insert new element at the end */
break;
}
case 3: {
int i;
pos = luaL_checkint(L, 2); /* 2nd argument is the position */
if (pos > e) e = pos; /* `grow' array if necessary */
for (i = e; i > pos; i--) { /* move up elements */
lua_rawgeti(L, 1, i-1);
lua_rawseti(L, 1, i); /* t[i] = t[i-1] */
}
break;
}
default: {
return luaL_error(L, "wrong number of arguments to " LUA_QL("insert"));
}
}
luaL_setn(L, 1, e); /* new size */
lua_rawseti(L, 1, pos); /* t[pos] = v */
return 0;
}
static int tremove (lua_State *L) {
int e = aux_getn(L, 1);
int pos = luaL_optint(L, 2, e);
if (!(1 <= pos && pos <= e)) /* position is outside bounds? */
return 0; /* nothing to remove */
luaL_setn(L, 1, e - 1); /* t.n = n-1 */
lua_rawgeti(L, 1, pos); /* result = t[pos] */
for ( ;pos<e; pos++) {
lua_rawgeti(L, 1, pos+1);
lua_rawseti(L, 1, pos); /* t[pos] = t[pos+1] */
}
lua_pushnil(L);
lua_rawseti(L, 1, e); /* t[e] = nil */
return 1;
}
static void addfield (lua_State *L, luaL_Buffer *b, int i) {
lua_rawgeti(L, 1, i);
if (!lua_isstring(L, -1))
luaL_error(L, "invalid value (%s) at index %d in table for "
LUA_QL("concat"), luaL_typename(L, -1), i);
luaL_addvalue(b);
}
static int tconcat (lua_State *L) {
luaL_Buffer b;
size_t lsep;
int i, last;
const char *sep = luaL_optlstring(L, 2, "", &lsep);
luaL_checktype(L, 1, LUA_TTABLE);
i = luaL_optint(L, 3, 1);
last = luaL_opt(L, luaL_checkint, 4, luaL_getn(L, 1));
luaL_buffinit(L, &b);
for (; i < last; i++) {
addfield(L, &b, i);
luaL_addlstring(&b, sep, lsep);
}
if (i == last) /* add last value (if interval was not empty) */
addfield(L, &b, i);
luaL_pushresult(&b);
return 1;
}
/*
** {======================================================
** Quicksort
** (based on `Algorithms in MODULA-3', Robert Sedgewick;
** Addison-Wesley, 1993.)
*/
static void set2 (lua_State *L, int i, int j) {
lua_rawseti(L, 1, i);
lua_rawseti(L, 1, j);
}
static int sort_comp (lua_State *L, int a, int b) {
if (!lua_isnil(L, 2)) { /* function? */
int res;
lua_pushvalue(L, 2);
lua_pushvalue(L, a-1); /* -1 to compensate function */
lua_pushvalue(L, b-2); /* -2 to compensate function and `a' */
lua_call(L, 2, 1);
res = lua_toboolean(L, -1);
lua_pop(L, 1);
return res;
}
else /* a < b? */
return lua_lessthan(L, a, b);
}
static void auxsort (lua_State *L, int l, int u) {
while (l < u) { /* for tail recursion */
int i, j;
/* sort elements a[l], a[(l+u)/2] and a[u] */
lua_rawgeti(L, 1, l);
lua_rawgeti(L, 1, u);
if (sort_comp(L, -1, -2)) /* a[u] < a[l]? */
set2(L, l, u); /* swap a[l] - a[u] */
else
lua_pop(L, 2);
if (u-l == 1) break; /* only 2 elements */
i = (l+u)/2;
lua_rawgeti(L, 1, i);
lua_rawgeti(L, 1, l);
if (sort_comp(L, -2, -1)) /* a[i]<a[l]? */
set2(L, i, l);
else {
lua_pop(L, 1); /* remove a[l] */
lua_rawgeti(L, 1, u);
if (sort_comp(L, -1, -2)) /* a[u]<a[i]? */
set2(L, i, u);
else
lua_pop(L, 2);
}
if (u-l == 2) break; /* only 3 elements */
lua_rawgeti(L, 1, i); /* Pivot */
lua_pushvalue(L, -1);
lua_rawgeti(L, 1, u-1);
set2(L, i, u-1);
/* a[l] <= P == a[u-1] <= a[u], only need to sort from l+1 to u-2 */
i = l; j = u-1;
for (;;) { /* invariant: a[l..i] <= P <= a[j..u] */
/* repeat ++i until a[i] >= P */
while (lua_rawgeti(L, 1, ++i), sort_comp(L, -1, -2)) {
if (i>u) luaL_error(L, "invalid order function for sorting");
lua_pop(L, 1); /* remove a[i] */
}
/* repeat --j until a[j] <= P */
while (lua_rawgeti(L, 1, --j), sort_comp(L, -3, -1)) {
if (j<l) luaL_error(L, "invalid order function for sorting");
lua_pop(L, 1); /* remove a[j] */
}
if (j<i) {
lua_pop(L, 3); /* pop pivot, a[i], a[j] */
break;
}
set2(L, i, j);
}
lua_rawgeti(L, 1, u-1);
lua_rawgeti(L, 1, i);
set2(L, u-1, i); /* swap pivot (a[u-1]) with a[i] */
/* a[l..i-1] <= a[i] == P <= a[i+1..u] */
/* adjust so that smaller half is in [j..i] and larger one in [l..u] */
if (i-l < u-i) {
j=l; i=i-1; l=i+2;
}
else {
j=i+1; i=u; u=j-2;
}
auxsort(L, j, i); /* call recursively the smaller one */
} /* repeat the routine for the larger one */
}
static int sort (lua_State *L) {
int n = aux_getn(L, 1);
luaL_checkstack(L, 40, ""); /* assume array is smaller than 2^40 */
if (!lua_isnoneornil(L, 2)) /* is there a 2nd argument? */
luaL_checktype(L, 2, LUA_TFUNCTION);
lua_settop(L, 2); /* make sure there is two arguments */
auxsort(L, 1, n);
return 0;
}
/* }====================================================== */
static const luaL_Reg tab_funcs[] = {
{"concat", tconcat},
{"foreach", foreach},
{"foreachi", foreachi},
{"getn", getn},
{"maxn", maxn},
{"insert", tinsert},
{"remove", tremove},
{"setn", setn},
{"sort", sort},
{NULL, NULL}
};
LUALIB_API int luaopen_table (lua_State *L) {
luaL_register(L, LUA_TABLIBNAME, tab_funcs);
return 1;
}

75
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@ -1,75 +0,0 @@
/*
** $Id: ltm.c,v 2.8.1.1 2007/12/27 13:02:25 roberto Exp $
** Tag methods
** See Copyright Notice in lua.h
*/
#include <string.h>
#define ltm_c
#define LUA_CORE
#include "lua.h"
#include "lobject.h"
#include "lstate.h"
#include "lstring.h"
#include "ltable.h"
#include "ltm.h"
const char *const luaT_typenames[] = {
"nil", "boolean", "userdata", "number",
"string", "table", "function", "userdata", "thread",
"proto", "upval"
};
void luaT_init (lua_State *L) {
static const char *const luaT_eventname[] = { /* ORDER TM */
"__index", "__newindex",
"__gc", "__mode", "__eq",
"__add", "__sub", "__mul", "__div", "__mod",
"__pow", "__unm", "__len", "__lt", "__le",
"__concat", "__call"
};
int i;
for (i=0; i<TM_N; i++) {
G(L)->tmname[i] = luaS_new(L, luaT_eventname[i]);
luaS_fix(G(L)->tmname[i]); /* never collect these names */
}
}
/*
** function to be used with macro "fasttm": optimized for absence of
** tag methods
*/
const TValue *luaT_gettm (Table *events, TMS event, TString *ename) {
const TValue *tm = luaH_getstr(events, ename);
lua_assert(event <= TM_EQ);
if (ttisnil(tm)) { /* no tag method? */
events->flags |= cast_byte(1u<<event); /* cache this fact */
return NULL;
}
else return tm;
}
const TValue *luaT_gettmbyobj (lua_State *L, const TValue *o, TMS event) {
Table *mt;
switch (ttype(o)) {
case LUA_TTABLE:
mt = hvalue(o)->metatable;
break;
case LUA_TUSERDATA:
mt = uvalue(o)->metatable;
break;
default:
mt = G(L)->mt[ttype(o)];
}
return (mt ? luaH_getstr(mt, G(L)->tmname[event]) : luaO_nilobject);
}

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@ -1,392 +0,0 @@
/*
** $Id: lua.c,v 1.160.1.2 2007/12/28 15:32:23 roberto Exp $
** Lua stand-alone interpreter
** See Copyright Notice in lua.h
*/
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define lua_c
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
static lua_State *globalL = NULL;
static const char *progname = LUA_PROGNAME;
static void lstop (lua_State *L, lua_Debug *ar) {
(void)ar; /* unused arg. */
lua_sethook(L, NULL, 0, 0);
luaL_error(L, "interrupted!");
}
static void laction (int i) {
signal(i, SIG_DFL); /* if another SIGINT happens before lstop,
terminate process (default action) */
lua_sethook(globalL, lstop, LUA_MASKCALL | LUA_MASKRET | LUA_MASKCOUNT, 1);
}
static void print_usage (void) {
fprintf(stderr,
"usage: %s [options] [script [args]].\n"
"Available options are:\n"
" -e stat execute string " LUA_QL("stat") "\n"
" -l name require library " LUA_QL("name") "\n"
" -i enter interactive mode after executing " LUA_QL("script") "\n"
" -v show version information\n"
" -- stop handling options\n"
" - execute stdin and stop handling options\n"
,
progname);
fflush(stderr);
}
static void l_message (const char *pname, const char *msg) {
if (pname) fprintf(stderr, "%s: ", pname);
fprintf(stderr, "%s\n", msg);
fflush(stderr);
}
static int report (lua_State *L, int status) {
if (status && !lua_isnil(L, -1)) {
const char *msg = lua_tostring(L, -1);
if (msg == NULL) msg = "(error object is not a string)";
l_message(progname, msg);
lua_pop(L, 1);
}
return status;
}
static int traceback (lua_State *L) {
if (!lua_isstring(L, 1)) /* 'message' not a string? */
return 1; /* keep it intact */
lua_getfield(L, LUA_GLOBALSINDEX, "debug");
if (!lua_istable(L, -1)) {
lua_pop(L, 1);
return 1;
}
lua_getfield(L, -1, "traceback");
if (!lua_isfunction(L, -1)) {
lua_pop(L, 2);
return 1;
}
lua_pushvalue(L, 1); /* pass error message */
lua_pushinteger(L, 2); /* skip this function and traceback */
lua_call(L, 2, 1); /* call debug.traceback */
return 1;
}
static int docall (lua_State *L, int narg, int clear) {
int status;
int base = lua_gettop(L) - narg; /* function index */
lua_pushcfunction(L, traceback); /* push traceback function */
lua_insert(L, base); /* put it under chunk and args */
signal(SIGINT, laction);
status = lua_pcall(L, narg, (clear ? 0 : LUA_MULTRET), base);
signal(SIGINT, SIG_DFL);
lua_remove(L, base); /* remove traceback function */
/* force a complete garbage collection in case of errors */
if (status != 0) lua_gc(L, LUA_GCCOLLECT, 0);
return status;
}
static void print_version (void) {
l_message(NULL, LUA_RELEASE " " LUA_COPYRIGHT);
}
static int getargs (lua_State *L, char **argv, int n) {
int narg;
int i;
int argc = 0;
while (argv[argc]) argc++; /* count total number of arguments */
narg = argc - (n + 1); /* number of arguments to the script */
luaL_checkstack(L, narg + 3, "too many arguments to script");
for (i=n+1; i < argc; i++)
lua_pushstring(L, argv[i]);
lua_createtable(L, narg, n + 1);
for (i=0; i < argc; i++) {
lua_pushstring(L, argv[i]);
lua_rawseti(L, -2, i - n);
}
return narg;
}
static int dofile (lua_State *L, const char *name) {
int status = luaL_loadfile(L, name) || docall(L, 0, 1);
return report(L, status);
}
static int dostring (lua_State *L, const char *s, const char *name) {
int status = luaL_loadbuffer(L, s, strlen(s), name) || docall(L, 0, 1);
return report(L, status);
}
static int dolibrary (lua_State *L, const char *name) {
lua_getglobal(L, "require");
lua_pushstring(L, name);
return report(L, docall(L, 1, 1));
}
static const char *get_prompt (lua_State *L, int firstline) {
const char *p;
lua_getfield(L, LUA_GLOBALSINDEX, firstline ? "_PROMPT" : "_PROMPT2");
p = lua_tostring(L, -1);
if (p == NULL) p = (firstline ? LUA_PROMPT : LUA_PROMPT2);
lua_pop(L, 1); /* remove global */
return p;
}
static int incomplete (lua_State *L, int status) {
if (status == LUA_ERRSYNTAX) {
size_t lmsg;
const char *msg = lua_tolstring(L, -1, &lmsg);
const char *tp = msg + lmsg - (sizeof(LUA_QL("<eof>")) - 1);
if (strstr(msg, LUA_QL("<eof>")) == tp) {
lua_pop(L, 1);
return 1;
}
}
return 0; /* else... */
}
static int pushline (lua_State *L, int firstline) {
char buffer[LUA_MAXINPUT];
char *b = buffer;
size_t l;
const char *prmt = get_prompt(L, firstline);
if (lua_readline(L, b, prmt) == 0)
return 0; /* no input */
l = strlen(b);
if (l > 0 && b[l-1] == '\n') /* line ends with newline? */
b[l-1] = '\0'; /* remove it */
if (firstline && b[0] == '=') /* first line starts with `=' ? */
lua_pushfstring(L, "return %s", b+1); /* change it to `return' */
else
lua_pushstring(L, b);
lua_freeline(L, b);
return 1;
}
static int loadline (lua_State *L) {
int status;
lua_settop(L, 0);
if (!pushline(L, 1))
return -1; /* no input */
for (;;) { /* repeat until gets a complete line */
status = luaL_loadbuffer(L, lua_tostring(L, 1), lua_strlen(L, 1), "=stdin");
if (!incomplete(L, status)) break; /* cannot try to add lines? */
if (!pushline(L, 0)) /* no more input? */
return -1;
lua_pushliteral(L, "\n"); /* add a new line... */
lua_insert(L, -2); /* ...between the two lines */
lua_concat(L, 3); /* join them */
}
lua_saveline(L, 1);
lua_remove(L, 1); /* remove line */
return status;
}
static void dotty (lua_State *L) {
int status;
const char *oldprogname = progname;
progname = NULL;
while ((status = loadline(L)) != -1) {
if (status == 0) status = docall(L, 0, 0);
report(L, status);
if (status == 0 && lua_gettop(L) > 0) { /* any result to print? */
lua_getglobal(L, "print");
lua_insert(L, 1);
if (lua_pcall(L, lua_gettop(L)-1, 0, 0) != 0)
l_message(progname, lua_pushfstring(L,
"error calling " LUA_QL("print") " (%s)",
lua_tostring(L, -1)));
}
}
lua_settop(L, 0); /* clear stack */
fputs("\n", stdout);
fflush(stdout);
progname = oldprogname;
}
static int handle_script (lua_State *L, char **argv, int n) {
int status;
const char *fname;
int narg = getargs(L, argv, n); /* collect arguments */
lua_setglobal(L, "arg");
fname = argv[n];
if (strcmp(fname, "-") == 0 && strcmp(argv[n-1], "--") != 0)
fname = NULL; /* stdin */
status = luaL_loadfile(L, fname);
lua_insert(L, -(narg+1));
if (status == 0)
status = docall(L, narg, 0);
else
lua_pop(L, narg);
return report(L, status);
}
/* check that argument has no extra characters at the end */
#define notail(x) {if ((x)[2] != '\0') return -1;}
static int collectargs (char **argv, int *pi, int *pv, int *pe) {
int i;
for (i = 1; argv[i] != NULL; i++) {
if (argv[i][0] != '-') /* not an option? */
return i;
switch (argv[i][1]) { /* option */
case '-':
notail(argv[i]);
return (argv[i+1] != NULL ? i+1 : 0);
case '\0':
return i;
case 'i':
notail(argv[i]);
*pi = 1; /* go through */
case 'v':
notail(argv[i]);
*pv = 1;
break;
case 'e':
*pe = 1; /* go through */
case 'l':
if (argv[i][2] == '\0') {
i++;
if (argv[i] == NULL) return -1;
}
break;
default: return -1; /* invalid option */
}
}
return 0;
}
static int runargs (lua_State *L, char **argv, int n) {
int i;
for (i = 1; i < n; i++) {
if (argv[i] == NULL) continue;
lua_assert(argv[i][0] == '-');
switch (argv[i][1]) { /* option */
case 'e': {
const char *chunk = argv[i] + 2;
if (*chunk == '\0') chunk = argv[++i];
lua_assert(chunk != NULL);
if (dostring(L, chunk, "=(command line)") != 0)
return 1;
break;
}
case 'l': {
const char *filename = argv[i] + 2;
if (*filename == '\0') filename = argv[++i];
lua_assert(filename != NULL);
if (dolibrary(L, filename))
return 1; /* stop if file fails */
break;
}
default: break;
}
}
return 0;
}
static int handle_luainit (lua_State *L) {
const char *init = getenv(LUA_INIT);
if (init == NULL) return 0; /* status OK */
else if (init[0] == '@')
return dofile(L, init+1);
else
return dostring(L, init, "=" LUA_INIT);
}
struct Smain {
int argc;
char **argv;
int status;
};
static int pmain (lua_State *L) {
struct Smain *s = (struct Smain *)lua_touserdata(L, 1);
char **argv = s->argv;
int script;
int has_i = 0, has_v = 0, has_e = 0;
globalL = L;
if (argv[0] && argv[0][0]) progname = argv[0];
lua_gc(L, LUA_GCSTOP, 0); /* stop collector during initialization */
luaL_openlibs(L); /* open libraries */
lua_gc(L, LUA_GCRESTART, 0);
s->status = handle_luainit(L);
if (s->status != 0) return 0;
script = collectargs(argv, &has_i, &has_v, &has_e);
if (script < 0) { /* invalid args? */
print_usage();
s->status = 1;
return 0;
}
if (has_v) print_version();
s->status = runargs(L, argv, (script > 0) ? script : s->argc);
if (s->status != 0) return 0;
if (script)
s->status = handle_script(L, argv, script);
if (s->status != 0) return 0;
if (has_i)
dotty(L);
else if (script == 0 && !has_e && !has_v) {
if (lua_stdin_is_tty()) {
print_version();
dotty(L);
}
else dofile(L, NULL); /* executes stdin as a file */
}
return 0;
}
int main (int argc, char **argv) {
int status;
struct Smain s;
lua_State *L = lua_open(); /* create state */
if (L == NULL) {
l_message(argv[0], "cannot create state: not enough memory");
return EXIT_FAILURE;
}
s.argc = argc;
s.argv = argv;
status = lua_cpcall(L, &pmain, &s);
report(L, status);
lua_close(L);
return (status || s.status) ? EXIT_FAILURE : EXIT_SUCCESS;
}

200
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@ -1,200 +0,0 @@
/*
** $Id: luac.c,v 1.54 2006/06/02 17:37:11 lhf Exp $
** Lua compiler (saves bytecodes to files; also list bytecodes)
** See Copyright Notice in lua.h
*/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define luac_c
#define LUA_CORE
#include "lua.h"
#include "lauxlib.h"
#include "ldo.h"
#include "lfunc.h"
#include "lmem.h"
#include "lobject.h"
#include "lopcodes.h"
#include "lstring.h"
#include "lundump.h"
#define PROGNAME "luac" /* default program name */
#define OUTPUT PROGNAME ".out" /* default output file */
static int listing=0; /* list bytecodes? */
static int dumping=1; /* dump bytecodes? */
static int stripping=0; /* strip debug information? */
static char Output[]={ OUTPUT }; /* default output file name */
static const char* output=Output; /* actual output file name */
static const char* progname=PROGNAME; /* actual program name */
static void fatal(const char* message)
{
fprintf(stderr,"%s: %s\n",progname,message);
exit(EXIT_FAILURE);
}
static void cannot(const char* what)
{
fprintf(stderr,"%s: cannot %s %s: %s\n",progname,what,output,strerror(errno));
exit(EXIT_FAILURE);
}
static void usage(const char* message)
{
if (*message=='-')
fprintf(stderr,"%s: unrecognized option " LUA_QS "\n",progname,message);
else
fprintf(stderr,"%s: %s\n",progname,message);
fprintf(stderr,
"usage: %s [options] [filenames].\n"
"Available options are:\n"
" - process stdin\n"
" -l list\n"
" -o name output to file " LUA_QL("name") " (default is \"%s\")\n"
" -p parse only\n"
" -s strip debug information\n"
" -v show version information\n"
" -- stop handling options\n",
progname,Output);
exit(EXIT_FAILURE);
}
#define IS(s) (strcmp(argv[i],s)==0)
static int doargs(int argc, char* argv[])
{
int i;
int version=0;
if (argv[0]!=NULL && *argv[0]!=0) progname=argv[0];
for (i=1; i<argc; i++)
{
if (*argv[i]!='-') /* end of options; keep it */
break;
else if (IS("--")) /* end of options; skip it */
{
++i;
if (version) ++version;
break;
}
else if (IS("-")) /* end of options; use stdin */
break;
else if (IS("-l")) /* list */
++listing;
else if (IS("-o")) /* output file */
{
output=argv[++i];
if (output==NULL || *output==0) usage(LUA_QL("-o") " needs argument");
if (IS("-")) output=NULL;
}
else if (IS("-p")) /* parse only */
dumping=0;
else if (IS("-s")) /* strip debug information */
stripping=1;
else if (IS("-v")) /* show version */
++version;
else /* unknown option */
usage(argv[i]);
}
if (i==argc && (listing || !dumping))
{
dumping=0;
argv[--i]=Output;
}
if (version)
{
printf("%s %s\n",LUA_RELEASE,LUA_COPYRIGHT);
if (version==argc-1) exit(EXIT_SUCCESS);
}
return i;
}
#define toproto(L,i) (clvalue(L->top+(i))->l.p)
static const Proto* combine(lua_State* L, int n)
{
if (n==1)
return toproto(L,-1);
else
{
int i,pc;
Proto* f=luaF_newproto(L);
setptvalue2s(L,L->top,f); incr_top(L);
f->source=luaS_newliteral(L,"=(" PROGNAME ")");
f->maxstacksize=1;
pc=2*n+1;
f->code=luaM_newvector(L,pc,Instruction);
f->sizecode=pc;
f->p=luaM_newvector(L,n,Proto*);
f->sizep=n;
pc=0;
for (i=0; i<n; i++)
{
f->p[i]=toproto(L,i-n-1);
f->code[pc++]=CREATE_ABx(OP_CLOSURE,0,i);
f->code[pc++]=CREATE_ABC(OP_CALL,0,1,1);
}
f->code[pc++]=CREATE_ABC(OP_RETURN,0,1,0);
return f;
}
}
static int writer(lua_State* L, const void* p, size_t size, void* u)
{
UNUSED(L);
return (fwrite(p,size,1,(FILE*)u)!=1) && (size!=0);
}
struct Smain {
int argc;
char** argv;
};
static int pmain(lua_State* L)
{
struct Smain* s = (struct Smain*)lua_touserdata(L, 1);
int argc=s->argc;
char** argv=s->argv;
const Proto* f;
int i;
if (!lua_checkstack(L,argc)) fatal("too many input files");
for (i=0; i<argc; i++)
{
const char* filename=IS("-") ? NULL : argv[i];
if (luaL_loadfile(L,filename)!=0) fatal(lua_tostring(L,-1));
}
f=combine(L,argc);
if (listing) luaU_print(f,listing>1);
if (dumping)
{
FILE* D= (output==NULL) ? stdout : fopen(output,"wb");
if (D==NULL) cannot("open");
lua_lock(L);
luaU_dump(L,f,writer,D,stripping);
lua_unlock(L);
if (ferror(D)) cannot("write");
if (fclose(D)) cannot("close");
}
return 0;
}
int main(int argc, char* argv[])
{
lua_State* L;
struct Smain s;
int i=doargs(argc,argv);
argc-=i; argv+=i;
if (argc<=0) usage("no input files given");
L=lua_open();
if (L==NULL) fatal("not enough memory for state");
s.argc=argc;
s.argv=argv;
if (lua_cpcall(L,pmain,&s)!=0) fatal(lua_tostring(L,-1));
lua_close(L);
return EXIT_SUCCESS;
}

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/*
** $Id: lundump.c,v 2.7.1.4 2008/04/04 19:51:41 roberto Exp $
** load precompiled Lua chunks
** See Copyright Notice in lua.h
*/
#include <string.h>
#define lundump_c
#define LUA_CORE
#include "lua.h"
#include "ldebug.h"
#include "ldo.h"
#include "lfunc.h"
#include "lmem.h"
#include "lobject.h"
#include "lstring.h"
#include "lundump.h"
#include "lzio.h"
typedef struct {
lua_State* L;
ZIO* Z;
Mbuffer* b;
const char* name;
} LoadState;
#ifdef LUAC_TRUST_BINARIES
#define IF(c,s)
#define error(S,s)
#else
#define IF(c,s) if (c) error(S,s)
static void error(LoadState* S, const char* why)
{
luaO_pushfstring(S->L,"%s: %s in precompiled chunk",S->name,why);
luaD_throw(S->L,LUA_ERRSYNTAX);
}
#endif
#define LoadMem(S,b,n,size) LoadBlock(S,b,(n)*(size))
#define LoadByte(S) (lu_byte)LoadChar(S)
#define LoadVar(S,x) LoadMem(S,&x,1,sizeof(x))
#define LoadVector(S,b,n,size) LoadMem(S,b,n,size)
static void LoadBlock(LoadState* S, void* b, size_t size)
{
size_t r=luaZ_read(S->Z,b,size);
IF (r!=0, "unexpected end");
}
static int LoadChar(LoadState* S)
{
char x;
LoadVar(S,x);
return x;
}
static int LoadInt(LoadState* S)
{
int x;
LoadVar(S,x);
IF (x<0, "bad integer");
return x;
}
static lua_Number LoadNumber(LoadState* S)
{
lua_Number x;
LoadVar(S,x);
return x;
}
static TString* LoadString(LoadState* S)
{
size_t size;
LoadVar(S,size);
if (size==0)
return NULL;
else
{
char* s=luaZ_openspace(S->L,S->b,size);
LoadBlock(S,s,size);
return luaS_newlstr(S->L,s,size-1); /* remove trailing '\0' */
}
}
static void LoadCode(LoadState* S, Proto* f)
{
int n=LoadInt(S);
f->code=luaM_newvector(S->L,n,Instruction);
f->sizecode=n;
LoadVector(S,f->code,n,sizeof(Instruction));
}
static Proto* LoadFunction(LoadState* S, TString* p);
static void LoadConstants(LoadState* S, Proto* f)
{
int i,n;
n=LoadInt(S);
f->k=luaM_newvector(S->L,n,TValue);
f->sizek=n;
for (i=0; i<n; i++) setnilvalue(&f->k[i]);
for (i=0; i<n; i++)
{
TValue* o=&f->k[i];
int t=LoadChar(S);
switch (t)
{
case LUA_TNIL:
setnilvalue(o);
break;
case LUA_TBOOLEAN:
setbvalue(o,LoadChar(S)!=0);
break;
case LUA_TNUMBER:
setnvalue(o,LoadNumber(S));
break;
case LUA_TSTRING:
setsvalue2n(S->L,o,LoadString(S));
break;
default:
error(S,"bad constant");
break;
}
}
n=LoadInt(S);
f->p=luaM_newvector(S->L,n,Proto*);
f->sizep=n;
for (i=0; i<n; i++) f->p[i]=NULL;
for (i=0; i<n; i++) f->p[i]=LoadFunction(S,f->source);
}
static void LoadDebug(LoadState* S, Proto* f)
{
int i,n;
n=LoadInt(S);
f->lineinfo=luaM_newvector(S->L,n,int);
f->sizelineinfo=n;
LoadVector(S,f->lineinfo,n,sizeof(int));
n=LoadInt(S);
f->locvars=luaM_newvector(S->L,n,LocVar);
f->sizelocvars=n;
for (i=0; i<n; i++) f->locvars[i].varname=NULL;
for (i=0; i<n; i++)
{
f->locvars[i].varname=LoadString(S);
f->locvars[i].startpc=LoadInt(S);
f->locvars[i].endpc=LoadInt(S);
}
n=LoadInt(S);
f->upvalues=luaM_newvector(S->L,n,TString*);
f->sizeupvalues=n;
for (i=0; i<n; i++) f->upvalues[i]=NULL;
for (i=0; i<n; i++) f->upvalues[i]=LoadString(S);
}
static Proto* LoadFunction(LoadState* S, TString* p)
{
Proto* f;
if (++S->L->nCcalls > LUAI_MAXCCALLS) error(S,"code too deep");
f=luaF_newproto(S->L);
setptvalue2s(S->L,S->L->top,f); incr_top(S->L);
f->source=LoadString(S); if (f->source==NULL) f->source=p;
f->linedefined=LoadInt(S);
f->lastlinedefined=LoadInt(S);
f->nups=LoadByte(S);
f->numparams=LoadByte(S);
f->is_vararg=LoadByte(S);
f->maxstacksize=LoadByte(S);
LoadCode(S,f);
LoadConstants(S,f);
LoadDebug(S,f);
IF (!luaG_checkcode(f), "bad code");
S->L->top--;
S->L->nCcalls--;
return f;
}
static void LoadHeader(LoadState* S)
{
char h[LUAC_HEADERSIZE];
char s[LUAC_HEADERSIZE];
luaU_header(h);
LoadBlock(S,s,LUAC_HEADERSIZE);
IF (memcmp(h,s,LUAC_HEADERSIZE)!=0, "bad header");
}
/*
** load precompiled chunk
*/
Proto* luaU_undump (lua_State* L, ZIO* Z, Mbuffer* buff, const char* name)
{
LoadState S;
if (*name=='@' || *name=='=')
S.name=name+1;
else if (*name==LUA_SIGNATURE[0])
S.name="binary string";
else
S.name=name;
S.L=L;
S.Z=Z;
S.b=buff;
LoadHeader(&S);
return LoadFunction(&S,luaS_newliteral(L,"=?"));
}
/*
* make header
*/
void luaU_header (char* h)
{
int x=1;
memcpy(h,LUA_SIGNATURE,sizeof(LUA_SIGNATURE)-1);
h+=sizeof(LUA_SIGNATURE)-1;
*h++=(char)LUAC_VERSION;
*h++=(char)LUAC_FORMAT;
*h++=(char)*(char*)&x; /* endianness */
*h++=(char)sizeof(int);
*h++=(char)sizeof(size_t);
*h++=(char)sizeof(Instruction);
*h++=(char)sizeof(lua_Number);
*h++=(char)(((lua_Number)0.5)==0); /* is lua_Number integral? */
}

763
desmume/src/windows/lua/lua-5.1.4/src/lvm.c
View File

@ -1,763 +0,0 @@
/*
** $Id: lvm.c,v 2.63.1.3 2007/12/28 15:32:23 roberto Exp $
** Lua virtual machine
** See Copyright Notice in lua.h
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define lvm_c
#define LUA_CORE
#include "lua.h"
#include "ldebug.h"
#include "ldo.h"
#include "lfunc.h"
#include "lgc.h"
#include "lobject.h"
#include "lopcodes.h"
#include "lstate.h"
#include "lstring.h"
#include "ltable.h"
#include "ltm.h"
#include "lvm.h"
/* limit for table tag-method chains (to avoid loops) */
#define MAXTAGLOOP 100
const TValue *luaV_tonumber (const TValue *obj, TValue *n) {
lua_Number num;
if (ttisnumber(obj)) return obj;
if (ttisstring(obj) && luaO_str2d(svalue(obj), &num)) {
setnvalue(n, num);
return n;
}
else
return NULL;
}
int luaV_tostring (lua_State *L, StkId obj) {
if (!ttisnumber(obj))
return 0;
else {
char s[LUAI_MAXNUMBER2STR];
lua_Number n = nvalue(obj);
lua_number2str(s, n);
setsvalue2s(L, obj, luaS_new(L, s));
return 1;
}
}
static void traceexec (lua_State *L, const Instruction *pc) {
lu_byte mask = L->hookmask;
const Instruction *oldpc = L->savedpc;
L->savedpc = pc;
if ((mask & LUA_MASKCOUNT) && L->hookcount == 0) {
resethookcount(L);
luaD_callhook(L, LUA_HOOKCOUNT, -1);
}
if (mask & LUA_MASKLINE) {
Proto *p = ci_func(L->ci)->l.p;
int npc = pcRel(pc, p);
int newline = getline(p, npc);
/* call linehook when enter a new function, when jump back (loop),
or when enter a new line */
if (npc == 0 || pc <= oldpc || newline != getline(p, pcRel(oldpc, p)))
luaD_callhook(L, LUA_HOOKLINE, newline);
}
}
static void callTMres (lua_State *L, StkId res, const TValue *f,
const TValue *p1, const TValue *p2) {
ptrdiff_t result = savestack(L, res);
setobj2s(L, L->top, f); /* push function */
setobj2s(L, L->top+1, p1); /* 1st argument */
setobj2s(L, L->top+2, p2); /* 2nd argument */
luaD_checkstack(L, 3);
L->top += 3;
luaD_call(L, L->top - 3, 1);
res = restorestack(L, result);
L->top--;
setobjs2s(L, res, L->top);
}
static void callTM (lua_State *L, const TValue *f, const TValue *p1,
const TValue *p2, const TValue *p3) {
setobj2s(L, L->top, f); /* push function */
setobj2s(L, L->top+1, p1); /* 1st argument */
setobj2s(L, L->top+2, p2); /* 2nd argument */
setobj2s(L, L->top+3, p3); /* 3th argument */
luaD_checkstack(L, 4);
L->top += 4;
luaD_call(L, L->top - 4, 0);
}
void luaV_gettable (lua_State *L, const TValue *t, TValue *key, StkId val) {
int loop;
for (loop = 0; loop < MAXTAGLOOP; loop++) {
const TValue *tm;
if (ttistable(t)) { /* `t' is a table? */
Table *h = hvalue(t);
const TValue *res = luaH_get(h, key); /* do a primitive get */
if (!ttisnil(res) || /* result is no nil? */
(tm = fasttm(L, h->metatable, TM_INDEX)) == NULL) { /* or no TM? */
setobj2s(L, val, res);
return;
}
/* else will try the tag method */
}
else if (ttisnil(tm = luaT_gettmbyobj(L, t, TM_INDEX)))
luaG_typeerror(L, t, "index");
if (ttisfunction(tm)) {
callTMres(L, val, tm, t, key);
return;
}
t = tm; /* else repeat with `tm' */
}
luaG_runerror(L, "loop in gettable");
}
void luaV_settable (lua_State *L, const TValue *t, TValue *key, StkId val) {
int loop;
for (loop = 0; loop < MAXTAGLOOP; loop++) {
const TValue *tm;
if (ttistable(t)) { /* `t' is a table? */
Table *h = hvalue(t);
TValue *oldval = luaH_set(L, h, key); /* do a primitive set */
if (!ttisnil(oldval) || /* result is no nil? */
(tm = fasttm(L, h->metatable, TM_NEWINDEX)) == NULL) { /* or no TM? */
setobj2t(L, oldval, val);
luaC_barriert(L, h, val);
return;
}
/* else will try the tag method */
}
else if (ttisnil(tm = luaT_gettmbyobj(L, t, TM_NEWINDEX)))
luaG_typeerror(L, t, "index");
if (ttisfunction(tm)) {
callTM(L, tm, t, key, val);
return;
}
t = tm; /* else repeat with `tm' */
}
luaG_runerror(L, "loop in settable");
}
static int call_binTM (lua_State *L, const TValue *p1, const TValue *p2,
StkId res, TMS event) {
const TValue *tm = luaT_gettmbyobj(L, p1, event); /* try first operand */
if (ttisnil(tm))
tm = luaT_gettmbyobj(L, p2, event); /* try second operand */
if (ttisnil(tm)) return 0;
callTMres(L, res, tm, p1, p2);
return 1;
}
static const TValue *get_compTM (lua_State *L, Table *mt1, Table *mt2,
TMS event) {
const TValue *tm1 = fasttm(L, mt1, event);
const TValue *tm2;
if (tm1 == NULL) return NULL; /* no metamethod */
if (mt1 == mt2) return tm1; /* same metatables => same metamethods */
tm2 = fasttm(L, mt2, event);
if (tm2 == NULL) return NULL; /* no metamethod */
if (luaO_rawequalObj(tm1, tm2)) /* same metamethods? */
return tm1;
return NULL;
}
static int call_orderTM (lua_State *L, const TValue *p1, const TValue *p2,
TMS event) {
const TValue *tm1 = luaT_gettmbyobj(L, p1, event);
const TValue *tm2;
if (ttisnil(tm1)) return -1; /* no metamethod? */
tm2 = luaT_gettmbyobj(L, p2, event);
if (!luaO_rawequalObj(tm1, tm2)) /* different metamethods? */
return -1;
callTMres(L, L->top, tm1, p1, p2);
return !l_isfalse(L->top);
}
static int l_strcmp (const TString *ls, const TString *rs) {
const char *l = getstr(ls);
size_t ll = ls->tsv.len;
const char *r = getstr(rs);
size_t lr = rs->tsv.len;
for (;;) {
int temp = strcoll(l, r);
if (temp != 0) return temp;
else { /* strings are equal up to a `\0' */
size_t len = strlen(l); /* index of first `\0' in both strings */
if (len == lr) /* r is finished? */
return (len == ll) ? 0 : 1;
else if (len == ll) /* l is finished? */
return -1; /* l is smaller than r (because r is not finished) */
/* both strings longer than `len'; go on comparing (after the `\0') */
len++;
l += len; ll -= len; r += len; lr -= len;
}
}
}
int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r) {
int res;
if (ttype(l) != ttype(r))
return luaG_ordererror(L, l, r);
else if (ttisnumber(l))
return luai_numlt(nvalue(l), nvalue(r));
else if (ttisstring(l))
return l_strcmp(rawtsvalue(l), rawtsvalue(r)) < 0;
else if ((res = call_orderTM(L, l, r, TM_LT)) != -1)
return res;
return luaG_ordererror(L, l, r);
}
static int lessequal (lua_State *L, const TValue *l, const TValue *r) {
int res;
if (ttype(l) != ttype(r))
return luaG_ordererror(L, l, r);
else if (ttisnumber(l))
return luai_numle(nvalue(l), nvalue(r));
else if (ttisstring(l))
return l_strcmp(rawtsvalue(l), rawtsvalue(r)) <= 0;
else if ((res = call_orderTM(L, l, r, TM_LE)) != -1) /* first try `le' */
return res;
else if ((res = call_orderTM(L, r, l, TM_LT)) != -1) /* else try `lt' */
return !res;
return luaG_ordererror(L, l, r);
}
int luaV_equalval (lua_State *L, const TValue *t1, const TValue *t2) {
const TValue *tm;
lua_assert(ttype(t1) == ttype(t2));
switch (ttype(t1)) {
case LUA_TNIL: return 1;
case LUA_TNUMBER: return luai_numeq(nvalue(t1), nvalue(t2));
case LUA_TBOOLEAN: return bvalue(t1) == bvalue(t2); /* true must be 1 !! */
case LUA_TLIGHTUSERDATA: return pvalue(t1) == pvalue(t2);
case LUA_TUSERDATA: {
if (uvalue(t1) == uvalue(t2)) return 1;
tm = get_compTM(L, uvalue(t1)->metatable, uvalue(t2)->metatable,
TM_EQ);
break; /* will try TM */
}
case LUA_TTABLE: {
if (hvalue(t1) == hvalue(t2)) return 1;
tm = get_compTM(L, hvalue(t1)->metatable, hvalue(t2)->metatable, TM_EQ);
break; /* will try TM */
}
default: return gcvalue(t1) == gcvalue(t2);
}
if (tm == NULL) return 0; /* no TM? */
callTMres(L, L->top, tm, t1, t2); /* call TM */
return !l_isfalse(L->top);
}
void luaV_concat (lua_State *L, int total, int last) {
do {
StkId top = L->base + last + 1;
int n = 2; /* number of elements handled in this pass (at least 2) */
if (!(ttisstring(top-2) || ttisnumber(top-2)) || !tostring(L, top-1)) {
if (!call_binTM(L, top-2, top-1, top-2, TM_CONCAT))
luaG_concaterror(L, top-2, top-1);
} else if (tsvalue(top-1)->len == 0) /* second op is empty? */
(void)tostring(L, top - 2); /* result is first op (as string) */
else {
/* at least two string values; get as many as possible */
size_t tl = tsvalue(top-1)->len;
char *buffer;
int i;
/* collect total length */
for (n = 1; n < total && tostring(L, top-n-1); n++) {
size_t l = tsvalue(top-n-1)->len;
if (l >= MAX_SIZET - tl) luaG_runerror(L, "string length overflow");
tl += l;
}
buffer = luaZ_openspace(L, &G(L)->buff, tl);
tl = 0;
for (i=n; i>0; i--) { /* concat all strings */
size_t l = tsvalue(top-i)->len;
memcpy(buffer+tl, svalue(top-i), l);
tl += l;
}
setsvalue2s(L, top-n, luaS_newlstr(L, buffer, tl));
}
total -= n-1; /* got `n' strings to create 1 new */
last -= n-1;
} while (total > 1); /* repeat until only 1 result left */
}
static void Arith (lua_State *L, StkId ra, const TValue *rb,
const TValue *rc, TMS op) {
TValue tempb, tempc;
const TValue *b, *c;
if ((b = luaV_tonumber(rb, &tempb)) != NULL &&
(c = luaV_tonumber(rc, &tempc)) != NULL) {
lua_Number nb = nvalue(b), nc = nvalue(c);
switch (op) {
case TM_ADD: setnvalue(ra, luai_numadd(nb, nc)); break;
case TM_SUB: setnvalue(ra, luai_numsub(nb, nc)); break;
case TM_MUL: setnvalue(ra, luai_nummul(nb, nc)); break;
case TM_DIV: setnvalue(ra, luai_numdiv(nb, nc)); break;
case TM_MOD: setnvalue(ra, luai_nummod(nb, nc)); break;
case TM_POW: setnvalue(ra, luai_numpow(nb, nc)); break;
case TM_UNM: setnvalue(ra, luai_numunm(nb)); break;
default: lua_assert(0); break;
}
}
else if (!call_binTM(L, rb, rc, ra, op))
luaG_aritherror(L, rb, rc);
}
/*
** some macros for common tasks in `luaV_execute'
*/
#define runtime_check(L, c) { if (!(c)) break; }
#define RA(i) (base+GETARG_A(i))
/* to be used after possible stack reallocation */
#define RB(i) check_exp(getBMode(GET_OPCODE(i)) == OpArgR, base+GETARG_B(i))
#define RC(i) check_exp(getCMode(GET_OPCODE(i)) == OpArgR, base+GETARG_C(i))
#define RKB(i) check_exp(getBMode(GET_OPCODE(i)) == OpArgK, \
ISK(GETARG_B(i)) ? k+INDEXK(GETARG_B(i)) : base+GETARG_B(i))
#define RKC(i) check_exp(getCMode(GET_OPCODE(i)) == OpArgK, \
ISK(GETARG_C(i)) ? k+INDEXK(GETARG_C(i)) : base+GETARG_C(i))
#define KBx(i) check_exp(getBMode(GET_OPCODE(i)) == OpArgK, k+GETARG_Bx(i))
#define dojump(L,pc,i) {(pc) += (i); luai_threadyield(L);}
#define Protect(x) { L->savedpc = pc; {x;}; base = L->base; }
#define arith_op(op,tm) { \
TValue *rb = RKB(i); \
TValue *rc = RKC(i); \
if (ttisnumber(rb) && ttisnumber(rc)) { \
lua_Number nb = nvalue(rb), nc = nvalue(rc); \
setnvalue(ra, op(nb, nc)); \
} \
else \
Protect(Arith(L, ra, rb, rc, tm)); \
}
void luaV_execute (lua_State *L, int nexeccalls) {
LClosure *cl;
StkId base;
TValue *k;
const Instruction *pc;
reentry: /* entry point */
lua_assert(isLua(L->ci));
pc = L->savedpc;
cl = &clvalue(L->ci->func)->l;
base = L->base;
k = cl->p->k;
/* main loop of interpreter */
for (;;) {
const Instruction i = *pc++;
StkId ra;
if ((L->hookmask & (LUA_MASKLINE | LUA_MASKCOUNT)) &&
(--L->hookcount == 0 || L->hookmask & LUA_MASKLINE)) {
traceexec(L, pc);
if (L->status == LUA_YIELD) { /* did hook yield? */
L->savedpc = pc - 1;
return;
}
base = L->base;
}
/* warning!! several calls may realloc the stack and invalidate `ra' */
ra = RA(i);
lua_assert(base == L->base && L->base == L->ci->base);
lua_assert(base <= L->top && L->top <= L->stack + L->stacksize);
lua_assert(L->top == L->ci->top || luaG_checkopenop(i));
switch (GET_OPCODE(i)) {
case OP_MOVE: {
setobjs2s(L, ra, RB(i));
continue;
}
case OP_LOADK: {
setobj2s(L, ra, KBx(i));
continue;
}
case OP_LOADBOOL: {
setbvalue(ra, GETARG_B(i));
if (GETARG_C(i)) pc++; /* skip next instruction (if C) */
continue;
}
case OP_LOADNIL: {
TValue *rb = RB(i);
do {
setnilvalue(rb--);
} while (rb >= ra);
continue;
}
case OP_GETUPVAL: {
int b = GETARG_B(i);
setobj2s(L, ra, cl->upvals[b]->v);
continue;
}
case OP_GETGLOBAL: {
TValue g;
TValue *rb = KBx(i);
sethvalue(L, &g, cl->env);
lua_assert(ttisstring(rb));
Protect(luaV_gettable(L, &g, rb, ra));
continue;
}
case OP_GETTABLE: {
Protect(luaV_gettable(L, RB(i), RKC(i), ra));
continue;
}
case OP_SETGLOBAL: {
TValue g;
sethvalue(L, &g, cl->env);
lua_assert(ttisstring(KBx(i)));
Protect(luaV_settable(L, &g, KBx(i), ra));
continue;
}
case OP_SETUPVAL: {
UpVal *uv = cl->upvals[GETARG_B(i)];
setobj(L, uv->v, ra);
luaC_barrier(L, uv, ra);
continue;
}
case OP_SETTABLE: {
Protect(luaV_settable(L, ra, RKB(i), RKC(i)));
continue;
}
case OP_NEWTABLE: {
int b = GETARG_B(i);
int c = GETARG_C(i);
sethvalue(L, ra, luaH_new(L, luaO_fb2int(b), luaO_fb2int(c)));
Protect(luaC_checkGC(L));
continue;
}
case OP_SELF: {
StkId rb = RB(i);
setobjs2s(L, ra+1, rb);
Protect(luaV_gettable(L, rb, RKC(i), ra));
continue;
}
case OP_ADD: {
arith_op(luai_numadd, TM_ADD);
continue;
}
case OP_SUB: {
arith_op(luai_numsub, TM_SUB);
continue;
}
case OP_MUL: {
arith_op(luai_nummul, TM_MUL);
continue;
}
case OP_DIV: {
arith_op(luai_numdiv, TM_DIV);
continue;
}
case OP_MOD: {
arith_op(luai_nummod, TM_MOD);
continue;
}
case OP_POW: {
arith_op(luai_numpow, TM_POW);
continue;
}
case OP_UNM: {
TValue *rb = RB(i);
if (ttisnumber(rb)) {
lua_Number nb = nvalue(rb);
setnvalue(ra, luai_numunm(nb));
}
else {
Protect(Arith(L, ra, rb, rb, TM_UNM));
}
continue;
}
case OP_NOT: {
int res = l_isfalse(RB(i)); /* next assignment may change this value */
setbvalue(ra, res);
continue;
}
case OP_LEN: {
const TValue *rb = RB(i);
switch (ttype(rb)) {
case LUA_TTABLE: {
setnvalue(ra, cast_num(luaH_getn(hvalue(rb))));
break;
}
case LUA_TSTRING: {
setnvalue(ra, cast_num(tsvalue(rb)->len));
break;
}
default: { /* try metamethod */
Protect(
if (!call_binTM(L, rb, luaO_nilobject, ra, TM_LEN))
luaG_typeerror(L, rb, "get length of");
)
}
}
continue;
}
case OP_CONCAT: {
int b = GETARG_B(i);
int c = GETARG_C(i);
Protect(luaV_concat(L, c-b+1, c); luaC_checkGC(L));
setobjs2s(L, RA(i), base+b);
continue;
}
case OP_JMP: {
dojump(L, pc, GETARG_sBx(i));
continue;
}
case OP_EQ: {
TValue *rb = RKB(i);
TValue *rc = RKC(i);
Protect(
if (equalobj(L, rb, rc) == GETARG_A(i))
dojump(L, pc, GETARG_sBx(*pc));
)
pc++;
continue;
}
case OP_LT: {
Protect(
if (luaV_lessthan(L, RKB(i), RKC(i)) == GETARG_A(i))
dojump(L, pc, GETARG_sBx(*pc));
)
pc++;
continue;
}
case OP_LE: {
Protect(
if (lessequal(L, RKB(i), RKC(i)) == GETARG_A(i))
dojump(L, pc, GETARG_sBx(*pc));
)
pc++;
continue;
}
case OP_TEST: {
if (l_isfalse(ra) != GETARG_C(i))
dojump(L, pc, GETARG_sBx(*pc));
pc++;
continue;
}
case OP_TESTSET: {
TValue *rb = RB(i);
if (l_isfalse(rb) != GETARG_C(i)) {
setobjs2s(L, ra, rb);
dojump(L, pc, GETARG_sBx(*pc));
}
pc++;
continue;
}
case OP_CALL: {
int b = GETARG_B(i);
int nresults = GETARG_C(i) - 1;
if (b != 0) L->top = ra+b; /* else previous instruction set top */
L->savedpc = pc;
switch (luaD_precall(L, ra, nresults)) {
case PCRLUA: {
nexeccalls++;
goto reentry; /* restart luaV_execute over new Lua function */
}
case PCRC: {
/* it was a C function (`precall' called it); adjust results */
if (nresults >= 0) L->top = L->ci->top;
base = L->base;
continue;
}
default: {
return; /* yield */
}
}
}
case OP_TAILCALL: {
int b = GETARG_B(i);
if (b != 0) L->top = ra+b; /* else previous instruction set top */
L->savedpc = pc;
lua_assert(GETARG_C(i) - 1 == LUA_MULTRET);
switch (luaD_precall(L, ra, LUA_MULTRET)) {
case PCRLUA: {
/* tail call: put new frame in place of previous one */
CallInfo *ci = L->ci - 1; /* previous frame */
int aux;
StkId func = ci->func;
StkId pfunc = (ci+1)->func; /* previous function index */
if (L->openupval) luaF_close(L, ci->base);
L->base = ci->base = ci->func + ((ci+1)->base - pfunc);
for (aux = 0; pfunc+aux < L->top; aux++) /* move frame down */
setobjs2s(L, func+aux, pfunc+aux);
ci->top = L->top = func+aux; /* correct top */
lua_assert(L->top == L->base + clvalue(func)->l.p->maxstacksize);
ci->savedpc = L->savedpc;
ci->tailcalls++; /* one more call lost */
L->ci--; /* remove new frame */
goto reentry;
}
case PCRC: { /* it was a C function (`precall' called it) */
base = L->base;
continue;
}
default: {
return; /* yield */
}
}
}
case OP_RETURN: {
int b = GETARG_B(i);
if (b != 0) L->top = ra+b-1;
if (L->openupval) luaF_close(L, base);
L->savedpc = pc;
b = luaD_poscall(L, ra);
if (--nexeccalls == 0) /* was previous function running `here'? */
return; /* no: return */
else { /* yes: continue its execution */
if (b) L->top = L->ci->top;
lua_assert(isLua(L->ci));
lua_assert(GET_OPCODE(*((L->ci)->savedpc - 1)) == OP_CALL);
goto reentry;
}
}
case OP_FORLOOP: {
lua_Number step = nvalue(ra+2);
lua_Number idx = luai_numadd(nvalue(ra), step); /* increment index */
lua_Number limit = nvalue(ra+1);
if (luai_numlt(0, step) ? luai_numle(idx, limit)
: luai_numle(limit, idx)) {
dojump(L, pc, GETARG_sBx(i)); /* jump back */
setnvalue(ra, idx); /* update internal index... */
setnvalue(ra+3, idx); /* ...and external index */
}
continue;
}
case OP_FORPREP: {
const TValue *init = ra;
const TValue *plimit = ra+1;
const TValue *pstep = ra+2;
L->savedpc = pc; /* next steps may throw errors */
if (!tonumber(init, ra))
luaG_runerror(L, LUA_QL("for") " initial value must be a number");
else if (!tonumber(plimit, ra+1))
luaG_runerror(L, LUA_QL("for") " limit must be a number");
else if (!tonumber(pstep, ra+2))
luaG_runerror(L, LUA_QL("for") " step must be a number");
setnvalue(ra, luai_numsub(nvalue(ra), nvalue(pstep)));
dojump(L, pc, GETARG_sBx(i));
continue;
}
case OP_TFORLOOP: {
StkId cb = ra + 3; /* call base */
setobjs2s(L, cb+2, ra+2);
setobjs2s(L, cb+1, ra+1);
setobjs2s(L, cb, ra);
L->top = cb+3; /* func. + 2 args (state and index) */
Protect(luaD_call(L, cb, GETARG_C(i)));
L->top = L->ci->top;
cb = RA(i) + 3; /* previous call may change the stack */
if (!ttisnil(cb)) { /* continue loop? */
setobjs2s(L, cb-1, cb); /* save control variable */
dojump(L, pc, GETARG_sBx(*pc)); /* jump back */
}
pc++;
continue;
}
case OP_SETLIST: {
int n = GETARG_B(i);
int c = GETARG_C(i);
int last;
Table *h;
if (n == 0) {
n = cast_int(L->top - ra) - 1;
L->top = L->ci->top;
}
if (c == 0) c = cast_int(*pc++);
runtime_check(L, ttistable(ra));
h = hvalue(ra);
last = ((c-1)*LFIELDS_PER_FLUSH) + n;
if (last > h->sizearray) /* needs more space? */
luaH_resizearray(L, h, last); /* pre-alloc it at once */
for (; n > 0; n--) {
TValue *val = ra+n;
setobj2t(L, luaH_setnum(L, h, last--), val);
luaC_barriert(L, h, val);
}
continue;
}
case OP_CLOSE: {
luaF_close(L, ra);
continue;
}
case OP_CLOSURE: {
Proto *p;
Closure *ncl;
int nup, j;
p = cl->p->p[GETARG_Bx(i)];
nup = p->nups;
ncl = luaF_newLclosure(L, nup, cl->env);
ncl->l.p = p;
for (j=0; j<nup; j++, pc++) {
if (GET_OPCODE(*pc) == OP_GETUPVAL)
ncl->l.upvals[j] = cl->upvals[GETARG_B(*pc)];
else {
lua_assert(GET_OPCODE(*pc) == OP_MOVE);
ncl->l.upvals[j] = luaF_findupval(L, base + GETARG_B(*pc));
}
}
setclvalue(L, ra, ncl);
Protect(luaC_checkGC(L));
continue;
}
case OP_VARARG: {
int b = GETARG_B(i) - 1;
int j;
CallInfo *ci = L->ci;
int n = cast_int(ci->base - ci->func) - cl->p->numparams - 1;
if (b == LUA_MULTRET) {
Protect(luaD_checkstack(L, n));
ra = RA(i); /* previous call may change the stack */
b = n;
L->top = ra + n;
}
for (j = 0; j < b; j++) {
if (j < n) {
setobjs2s(L, ra + j, ci->base - n + j);
}
else {
setnilvalue(ra + j);
}
}
continue;
}
}
}
}

82
desmume/src/windows/lua/lua-5.1.4/src/lzio.c
View File

@ -1,82 +0,0 @@
/*
** $Id: lzio.c,v 1.31.1.1 2007/12/27 13:02:25 roberto Exp $
** a generic input stream interface
** See Copyright Notice in lua.h
*/
#include <string.h>
#define lzio_c
#define LUA_CORE
#include "lua.h"
#include "llimits.h"
#include "lmem.h"
#include "lstate.h"
#include "lzio.h"
int luaZ_fill (ZIO *z) {
size_t size;
lua_State *L = z->L;
const char *buff;
lua_unlock(L);
buff = z->reader(L, z->data, &size);
lua_lock(L);
if (buff == NULL || size == 0) return EOZ;
z->n = size - 1;
z->p = buff;
return char2int(*(z->p++));
}
int luaZ_lookahead (ZIO *z) {
if (z->n == 0) {
if (luaZ_fill(z) == EOZ)
return EOZ;
else {
z->n++; /* luaZ_fill removed first byte; put back it */
z->p--;
}
}
return char2int(*z->p);
}
void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader, void *data) {
z->L = L;
z->reader = reader;
z->data = data;
z->n = 0;
z->p = NULL;
}
/* --------------------------------------------------------------- read --- */
size_t luaZ_read (ZIO *z, void *b, size_t n) {
while (n) {
size_t m;
if (luaZ_lookahead(z) == EOZ)
return n; /* return number of missing bytes */
m = (n <= z->n) ? n : z->n; /* min. between n and z->n */
memcpy(b, z->p, m);
z->n -= m;
z->p += m;
b = (char *)b + m;
n -= m;
}
return 0;
}
/* ------------------------------------------------------------------------ */
char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n) {
if (n > buff->buffsize) {
if (n < LUA_MINBUFFER) n = LUA_MINBUFFER;
luaZ_resizebuffer(L, buff, n);
}
return buff->buffer;
}

227
desmume/src/windows/lua/lua-5.1.4/src/print.c
View File

@ -1,227 +0,0 @@
/*
** $Id: print.c,v 1.55a 2006/05/31 13:30:05 lhf Exp $
** print bytecodes
** See Copyright Notice in lua.h
*/
#include <ctype.h>
#include <stdio.h>
#define luac_c
#define LUA_CORE
#include "ldebug.h"
#include "lobject.h"
#include "lopcodes.h"
#include "lundump.h"
#define PrintFunction luaU_print
#define Sizeof(x) ((int)sizeof(x))
#define VOID(p) ((const void*)(p))
static void PrintString(const TString* ts)
{
const char* s=getstr(ts);
size_t i,n=ts->tsv.len;
putchar('"');
for (i=0; i<n; i++)
{
int c=s[i];
switch (c)
{
case '"': printf("\\\""); break;
case '\\': printf("\\\\"); break;
case '\a': printf("\\a"); break;
case '\b': printf("\\b"); break;
case '\f': printf("\\f"); break;
case '\n': printf("\\n"); break;
case '\r': printf("\\r"); break;
case '\t': printf("\\t"); break;
case '\v': printf("\\v"); break;
default: if (isprint((unsigned char)c))
putchar(c);
else
printf("\\%03u",(unsigned char)c);
}
}
putchar('"');
}
static void PrintConstant(const Proto* f, int i)
{
const TValue* o=&f->k[i];
switch (ttype(o))
{
case LUA_TNIL:
printf("nil");
break;
case LUA_TBOOLEAN:
printf(bvalue(o) ? "true" : "false");
break;
case LUA_TNUMBER:
printf(LUA_NUMBER_FMT,nvalue(o));
break;
case LUA_TSTRING:
PrintString(rawtsvalue(o));
break;
default: /* cannot happen */
printf("? type=%d",ttype(o));
break;
}
}
static void PrintCode(const Proto* f)
{
const Instruction* code=f->code;
int pc,n=f->sizecode;
for (pc=0; pc<n; pc++)
{
Instruction i=code[pc];
OpCode o=GET_OPCODE(i);
int a=GETARG_A(i);
int b=GETARG_B(i);
int c=GETARG_C(i);
int bx=GETARG_Bx(i);
int sbx=GETARG_sBx(i);
int line=getline(f,pc);
printf("\t%d\t",pc+1);
if (line>0) printf("[%d]\t",line); else printf("[-]\t");
printf("%-9s\t",luaP_opnames[o]);
switch (getOpMode(o))
{
case iABC:
printf("%d",a);
if (getBMode(o)!=OpArgN) printf(" %d",ISK(b) ? (-1-INDEXK(b)) : b);
if (getCMode(o)!=OpArgN) printf(" %d",ISK(c) ? (-1-INDEXK(c)) : c);
break;
case iABx:
if (getBMode(o)==OpArgK) printf("%d %d",a,-1-bx); else printf("%d %d",a,bx);
break;
case iAsBx:
if (o==OP_JMP) printf("%d",sbx); else printf("%d %d",a,sbx);
break;
}
switch (o)
{
case OP_LOADK:
printf("\t; "); PrintConstant(f,bx);
break;
case OP_GETUPVAL:
case OP_SETUPVAL:
printf("\t; %s", (f->sizeupvalues>0) ? getstr(f->upvalues[b]) : "-");
break;
case OP_GETGLOBAL:
case OP_SETGLOBAL:
printf("\t; %s",svalue(&f->k[bx]));
break;
case OP_GETTABLE:
case OP_SELF:
if (ISK(c)) { printf("\t; "); PrintConstant(f,INDEXK(c)); }
break;
case OP_SETTABLE:
case OP_ADD:
case OP_SUB:
case OP_MUL:
case OP_DIV:
case OP_POW:
case OP_EQ:
case OP_LT:
case OP_LE:
if (ISK(b) || ISK(c))
{
printf("\t; ");
if (ISK(b)) PrintConstant(f,INDEXK(b)); else printf("-");
printf(" ");
if (ISK(c)) PrintConstant(f,INDEXK(c)); else printf("-");
}
break;
case OP_JMP:
case OP_FORLOOP:
case OP_FORPREP:
printf("\t; to %d",sbx+pc+2);
break;
case OP_CLOSURE:
printf("\t; %p",VOID(f->p[bx]));
break;
case OP_SETLIST:
if (c==0) printf("\t; %d",(int)code[++pc]);
else printf("\t; %d",c);
break;
default:
break;
}
printf("\n");
}
}
#define SS(x) (x==1)?"":"s"
#define S(x) x,SS(x)
static void PrintHeader(const Proto* f)
{
const char* s=getstr(f->source);
if (*s=='@' || *s=='=')
s++;
else if (*s==LUA_SIGNATURE[0])
s="(bstring)";
else
s="(string)";
printf("\n%s <%s:%d,%d> (%d instruction%s, %d bytes at %p)\n",
(f->linedefined==0)?"main":"function",s,
f->linedefined,f->lastlinedefined,
S(f->sizecode),f->sizecode*Sizeof(Instruction),VOID(f));
printf("%d%s param%s, %d slot%s, %d upvalue%s, ",
f->numparams,f->is_vararg?"+":"",SS(f->numparams),
S(f->maxstacksize),S(f->nups));
printf("%d local%s, %d constant%s, %d function%s\n",
S(f->sizelocvars),S(f->sizek),S(f->sizep));
}
static void PrintConstants(const Proto* f)
{
int i,n=f->sizek;
printf("constants (%d) for %p:\n",n,VOID(f));
for (i=0; i<n; i++)
{
printf("\t%d\t",i+1);
PrintConstant(f,i);
printf("\n");
}
}
static void PrintLocals(const Proto* f)
{
int i,n=f->sizelocvars;
printf("locals (%d) for %p:\n",n,VOID(f));
for (i=0; i<n; i++)
{
printf("\t%d\t%s\t%d\t%d\n",
i,getstr(f->locvars[i].varname),f->locvars[i].startpc+1,f->locvars[i].endpc+1);
}
}
static void PrintUpvalues(const Proto* f)
{
int i,n=f->sizeupvalues;
printf("upvalues (%d) for %p:\n",n,VOID(f));
if (f->upvalues==NULL) return;
for (i=0; i<n; i++)
{
printf("\t%d\t%s\n",i,getstr(f->upvalues[i]));
}
}
void PrintFunction(const Proto* f, int full)
{
int i,n=f->sizep;
PrintHeader(f);
PrintCode(f);
if (full)
{
PrintConstants(f);
PrintLocals(f);
PrintUpvalues(f);
}
for (i=0; i<n; i++) PrintFunction(f->p[i],full);
}

0
desmume/src/windows/lua/lua-5.1.4_from_tastools Normal file
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BIN
desmume/src/windows/lua/lua-vc8-Win32-debug.lib Normal file
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BIN
desmume/src/windows/lua/lua-vc8-Win32.lib Normal file
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desmume/src/windows/lua/lua-vc8-x64.lib Normal file
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26
desmume/src/windows/lua/vs8/lua.sln
View File

@ -1,26 +0,0 @@

Microsoft Visual Studio Solution File, Format Version 9.00
# Visual Studio 2005
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "lua", "lua.vcproj", "{650C0DB9-F95F-4283-8778-2DE8FA3CCED8}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Win32 = Debug|Win32
Debug|x64 = Debug|x64
Release|Win32 = Release|Win32
Release|x64 = Release|x64
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{650C0DB9-F95F-4283-8778-2DE8FA3CCED8}.Debug|Win32.ActiveCfg = Debug|Win32
{650C0DB9-F95F-4283-8778-2DE8FA3CCED8}.Debug|Win32.Build.0 = Debug|Win32
{650C0DB9-F95F-4283-8778-2DE8FA3CCED8}.Debug|x64.ActiveCfg = Debug|x64
{650C0DB9-F95F-4283-8778-2DE8FA3CCED8}.Debug|x64.Build.0 = Debug|x64
{650C0DB9-F95F-4283-8778-2DE8FA3CCED8}.Release|Win32.ActiveCfg = Release|Win32
{650C0DB9-F95F-4283-8778-2DE8FA3CCED8}.Release|Win32.Build.0 = Release|Win32
{650C0DB9-F95F-4283-8778-2DE8FA3CCED8}.Release|x64.ActiveCfg = Release|x64
{650C0DB9-F95F-4283-8778-2DE8FA3CCED8}.Release|x64.Build.0 = Release|x64
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal

515
desmume/src/windows/lua/vs8/lua.vcproj
View File

@ -1,515 +0,0 @@
<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="8.00"
Name="lua"
ProjectGUID="{650C0DB9-F95F-4283-8778-2DE8FA3CCED8}"
RootNamespace="lua"
Keyword="Win32Proj"
>
<Platforms>
<Platform
Name="Win32"
/>
<Platform
Name="x64"
/>
</Platforms>
<ToolFiles>
</ToolFiles>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory="$(SolutionDir)$(ConfigurationName)"
IntermediateDirectory="$(ConfigurationName)"
ConfigurationType="4"
CharacterSet="1"
>
<Tool
Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="0"
PreprocessorDefinitions="WIN32;_DEBUG;_LIB;LUA_USE_APICHECK;_CRT_SECURE_NO_DEPRECATE"
MinimalRebuild="true"
BasicRuntimeChecks="3"
RuntimeLibrary="1"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="false"
DebugInformationFormat="3"
CallingConvention="0"
OmitDefaultLibName="true"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLibrarianTool"
OutputFile="..\lib\lua-5.1.4-x86d.lib"
IgnoreAllDefaultLibraries="true"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
<Configuration
Name="Release|Win32"
OutputDirectory="$(SolutionDir)$(ConfigurationName)"
IntermediateDirectory="$(ConfigurationName)"
ConfigurationType="4"
CharacterSet="1"
WholeProgramOptimization="1"
>
<Tool
Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="2"
InlineFunctionExpansion="2"
FavorSizeOrSpeed="1"
OmitFramePointers="true"
WholeProgramOptimization="false"
PreprocessorDefinitions="WIN32;NDEBUG;_LIB;_CRT_SECURE_NO_DEPRECATE"
RuntimeLibrary="0"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="false"
DebugInformationFormat="0"
CallingConvention="0"
OmitDefaultLibName="true"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLibrarianTool"
OutputFile="..\lib\lua-5.1.4-x86.lib"
IgnoreAllDefaultLibraries="true"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
<Configuration
Name="Debug|x64"
OutputDirectory="$(SolutionDir)$(PlatformName)\$(ConfigurationName)"
IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
ConfigurationType="4"
CharacterSet="1"
>
<Tool
Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
TargetEnvironment="3"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="0"
PreprocessorDefinitions="WIN32;_DEBUG;_LIB"
MinimalRebuild="true"
BasicRuntimeChecks="3"
RuntimeLibrary="3"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="false"
DebugInformationFormat="0"
CallingConvention="0"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLibrarianTool"
OutputFile="..\lib\lua-5.1.4-x86.lib"
IgnoreAllDefaultLibraries="true"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
<Configuration
Name="Release|x64"
OutputDirectory="$(SolutionDir)$(ConfigurationName)-x64"
IntermediateDirectory="$(ConfigurationName)-x64"
ConfigurationType="4"
CharacterSet="1"
WholeProgramOptimization="1"
>
<Tool
Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
TargetEnvironment="3"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="2"
InlineFunctionExpansion="2"
FavorSizeOrSpeed="1"
OmitFramePointers="true"
WholeProgramOptimization="false"
PreprocessorDefinitions="WIN32;NDEBUG;_LIB"
RuntimeLibrary="0"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="false"
DebugInformationFormat="0"
CallingConvention="0"
OmitDefaultLibName="true"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLibrarianTool"
OutputFile="..\lib\lua-5.1.4-x64.lib"
IgnoreAllDefaultLibraries="true"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
</Configurations>
<References>
</References>
<Files>
<Filter
Name="headers"
>
<File
RelativePath="..\lua-5.1.4\src\lapi.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\lauxlib.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\lcode.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\ldebug.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\ldo.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\lfunc.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\lgc.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\llex.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\lmem.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\lopcodes.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\lparser.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\lstate.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\lstring.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\ltable.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\ltm.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\luaconf.h"
>
</File>
<File
RelativePath="..\lua-5.1.4\src\lualib.h"
>
</File>
<File
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