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Scripting: Add root-scope docstrings

This commit is contained in:
Vicki Pfau 2022-06-05 03:28:15 -07:00
parent 00bd093fe3
commit 10eb2b9784
5 changed files with 51 additions and 17 deletions
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4
include/mgba/script/context.h
View File

@ -30,6 +30,7 @@ struct mScriptContext {
uint32_t nextWeakref;
struct Table callbacks;
struct mScriptValue* constants;
struct Table docstrings;
};
struct mScriptEngine2 {
@ -86,6 +87,9 @@ void mScriptContextExportNamespace(struct mScriptContext* context, const char* n
void mScriptContextTriggerCallback(struct mScriptContext*, const char* callback);
void mScriptContextAddCallback(struct mScriptContext*, const char* callback, struct mScriptValue* value);
void mScriptContextSetDocstring(struct mScriptContext*, const char* key, const char* docstring);
const char* mScriptContextGetDocstring(struct mScriptContext*, const char* key);
struct VFile;
bool mScriptContextLoadVF(struct mScriptContext*, const char* name, struct VFile* vf);
bool mScriptContextLoadFile(struct mScriptContext*, const char* path);

17
src/core/scripting.c
View File

@ -710,14 +710,20 @@ mSCRIPT_DEFINE_STRUCT_BINDING_DEFAULTS(mScriptConsole, createBuffer)
mSCRIPT_CHARP(NULL)
mSCRIPT_DEFINE_DEFAULTS_END;
void mScriptContextAttachLogger(struct mScriptContext* context, struct mLogger* logger) {
static struct mScriptConsole* _ensureConsole(struct mScriptContext* context) {
struct mScriptValue* value = mScriptContextEnsureGlobal(context, "console", mSCRIPT_TYPE_MS_S(mScriptConsole));
struct mScriptConsole* console = value->value.opaque;
if (!console) {
console = calloc(1, sizeof(*console));
value->value.opaque = console;
value->flags = mSCRIPT_VALUE_FLAG_FREE_BUFFER;
mScriptContextSetDocstring(context, "console", "Singleton instance of struct::mScriptConsole");
}
return console;
}
void mScriptContextAttachLogger(struct mScriptContext* context, struct mLogger* logger) {
struct mScriptConsole* console = _ensureConsole(context);
console->logger = logger;
}
@ -771,14 +777,7 @@ mSCRIPT_DEFINE_STRUCT(mScriptTextBuffer)
mSCRIPT_DEFINE_END;
void mScriptContextSetTextBufferFactory(struct mScriptContext* context, mScriptContextBufferFactory factory, void* cbContext) {
struct mScriptValue* value = mScriptContextEnsureGlobal(context, "console", mSCRIPT_TYPE_MS_S(mScriptConsole));
struct mScriptConsole* console = value->value.opaque;
if (!console) {
console = calloc(1, sizeof(*console));
console->logger = mLogGetContext();
value->value.opaque = console;
value->flags = mSCRIPT_VALUE_FLAG_FREE_BUFFER;
}
struct mScriptConsole* console = _ensureConsole(context);
console->textBufferFactory = factory;
console->textBufferContext = cbContext;
}

10
src/script/context.c
View File

@ -57,6 +57,7 @@ void mScriptContextInit(struct mScriptContext* context) {
context->nextWeakref = 1;
HashTableInit(&context->callbacks, 0, (void (*)(void*)) mScriptValueDeref);
context->constants = NULL;
HashTableInit(&context->docstrings, 0, NULL);
}
void mScriptContextDeinit(struct mScriptContext* context) {
@ -66,6 +67,7 @@ void mScriptContextDeinit(struct mScriptContext* context) {
mScriptListDeinit(&context->refPool);
HashTableDeinit(&context->callbacks);
HashTableDeinit(&context->engines);
HashTableDeinit(&context->docstrings);
}
void mScriptContextFillPool(struct mScriptContext* context, struct mScriptValue* value) {
@ -249,6 +251,14 @@ void mScriptContextExportNamespace(struct mScriptContext* context, const char* n
mScriptContextSetGlobal(context, nspace, table);
}
void mScriptContextSetDocstring(struct mScriptContext* context, const char* key, const char* docstring) {
HashTableInsert(&context->docstrings, key, docstring);
}
const char* mScriptContextGetDocstring(struct mScriptContext* context, const char* key) {
return HashTableLookup(&context->docstrings, key);
}
bool mScriptContextLoadVF(struct mScriptContext* context, const char* name, struct VFile* vf) {
struct mScriptFileInfo info = {
.name = name,

32
src/script/docgen.c
View File

@ -12,7 +12,7 @@ struct mScriptContext context;
struct Table types;
FILE* out;
void explainValue(struct mScriptValue* value, int level);
void explainValue(struct mScriptValue* value, const char* name, int level);
void explainType(struct mScriptType* type, int level);
void addTypesFromTuple(const struct mScriptTypeTuple*);
@ -154,7 +154,7 @@ bool printval(const struct mScriptValue* value, char* buffer, size_t bufferSize)
return false;
}
void explainTable(struct mScriptValue* value, int level) {
void explainTable(struct mScriptValue* value, const char* name, int level) {
char indent[(level + 1) * 2 + 1];
memset(indent, ' ', sizeof(indent) - 1);
indent[sizeof(indent) - 1] = '\0';
@ -167,7 +167,14 @@ void explainTable(struct mScriptValue* value, int level) {
printval(k, keyval, sizeof(keyval));
fprintf(out, "%s- key: %s\n", indent, keyval);
struct mScriptValue* v = mScriptTableIteratorGetValue(value, &iter);
explainValue(v, level + 1);
struct mScriptValue string;
if (mScriptCast(mSCRIPT_TYPE_MS_CHARP, k, &string)) {
snprintf(keyval, sizeof(keyval), "%s.%s", name, (const char*) string.value.opaque);
explainValue(v, keyval, level + 1);
} else {
explainValue(v, NULL, level + 1);
}
} while (mScriptTableIteratorNext(value, &iter));
}
}
@ -234,15 +241,15 @@ void explainObject(struct mScriptValue* value, int level) {
struct mScriptValue* unwrappedMember;
if (member.type->base == mSCRIPT_TYPE_WRAPPER) {
unwrappedMember = mScriptValueUnwrap(&member);
explainValue(unwrappedMember, level + 2);
explainValue(unwrappedMember, NULL, level + 2);
} else {
explainValue(&member, level + 2);
explainValue(&member, NULL, level + 2);
}
}
}
}
void explainValue(struct mScriptValue* value, int level) {
void explainValue(struct mScriptValue* value, const char* name, int level) {
char valstring[1024];
char indent[(level + 1) * 2 + 1];
memset(indent, ' ', sizeof(indent) - 1);
@ -250,10 +257,19 @@ void explainValue(struct mScriptValue* value, int level) {
value = mScriptContextAccessWeakref(&context, value);
addType(value->type);
fprintf(out, "%stype: %s\n", indent, value->type->name);
const char* docstring = NULL;
if (name) {
docstring = mScriptContextGetDocstring(&context, name);
}
if (docstring) {
fprintf(out, "%scomment: \"%s\"\n", indent, docstring);
}
switch (value->type->base) {
case mSCRIPT_TYPE_TABLE:
fprintf(out, "%svalue:\n", indent);
explainTable(value, level);
explainTable(value, name, level);
break;
case mSCRIPT_TYPE_SINT:
case mSCRIPT_TYPE_UINT:
@ -462,7 +478,7 @@ int main(int argc, char* argv[]) {
const char* name = HashTableIteratorGetKey(&context.rootScope, &iter);
fprintf(out, " %s:\n", name);
struct mScriptValue* value = HashTableIteratorGetValue(&context.rootScope, &iter);
explainValue(value, 1);
explainValue(value, name, 1);
} while (HashTableIteratorNext(&context.rootScope, &iter));
}
fputs("emu:\n", out);

5
src/script/stdlib.c
View File

@ -90,6 +90,7 @@ void mScriptContextAttachStdlib(struct mScriptContext* context) {
};
lib->flags = mSCRIPT_VALUE_FLAG_FREE_BUFFER;
mScriptContextSetGlobal(context, "callbacks", lib);
mScriptContextSetDocstring(context, "callbacks", "Singleton instance of struct::mScriptCallbackManager");
mScriptContextExportConstants(context, "SAVESTATE", (struct mScriptKVPair[]) {
mSCRIPT_CONSTANT_PAIR(SAVESTATE, SCREENSHOT),
@ -139,10 +140,14 @@ void mScriptContextAttachStdlib(struct mScriptContext* context) {
});
#endif
mScriptContextSetGlobal(context, "C", context->constants);
mScriptContextSetDocstring(context, "C", "A table containing the [exported constants](#constants)");
mScriptContextExportNamespace(context, "util", (struct mScriptKVPair[]) {
mSCRIPT_KV_PAIR(makeBitmask, &mScriptMakeBitmask_Binding),
mSCRIPT_KV_PAIR(expandBitmask, &mScriptExpandBitmask_Binding),
mSCRIPT_KV_SENTINEL
});
mScriptContextSetDocstring(context, "util", "Basic utility library");
mScriptContextSetDocstring(context, "util.makeBitmask", "Compile a list of bit indices into a bitmask");
mScriptContextSetDocstring(context, "util.expandBitmask", "Expand a bitmask into a list of bit indices");
}