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qom: clean up cast macros 

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2012-02-03 11:48:11 +01:00
parent c9344f2220
commit 1ed5b918ce
1 changed files with 15 additions and 7 deletions
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22
include/qemu/object.h
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@ -258,6 +258,16 @@ struct TypeInfo
#define OBJECT(obj) \ #define OBJECT(obj) \
((Object *)(obj)) ((Object *)(obj))
/**
* OBJECT_CLASS:
* @class: A derivative of #ObjectClas.
*
* Converts a class to an #ObjectClass. Since all objects are #Objects,
* this function will always succeed.
*/
#define OBJECT_CLASS(class) \
((ObjectClass *)(class))
/** /**
* OBJECT_CHECK: * OBJECT_CHECK:
* @type: The C type to use for the return value. * @type: The C type to use for the return value.
@ -272,7 +282,7 @@ struct TypeInfo
* generated. * generated.
*/ */
#define OBJECT_CHECK(type, obj, name) \ #define OBJECT_CHECK(type, obj, name) \
((type *)object_dynamic_cast_assert((Object *)(obj), (name))) ((type *)object_dynamic_cast_assert(OBJECT(obj), (name)))
/** /**
* OBJECT_CLASS_CHECK: * OBJECT_CLASS_CHECK:
@ -280,11 +290,12 @@ struct TypeInfo
* @obj: A derivative of @type to cast. * @obj: A derivative of @type to cast.
* @name: the QOM typename of @class. * @name: the QOM typename of @class.
* *
* A type safe version of @object_check_class. This macro is typically wrapped * A type safe version of @object_class_dynamic_cast_assert. This macro is
* by each type to perform type safe casts of a class to a specific class type. * typically wrapped by each type to perform type safe casts of a class to a
* specific class type.
*/ */
#define OBJECT_CLASS_CHECK(class, obj, name) \ #define OBJECT_CLASS_CHECK(class, obj, name) \
((class *)object_class_dynamic_cast_assert((ObjectClass *)(obj), (name))) ((class *)object_class_dynamic_cast_assert(OBJECT_CLASS(obj), (name)))
/** /**
* OBJECT_GET_CLASS: * OBJECT_GET_CLASS:
@ -299,9 +310,6 @@ struct TypeInfo
#define OBJECT_GET_CLASS(class, obj, name) \ #define OBJECT_GET_CLASS(class, obj, name) \
OBJECT_CLASS_CHECK(class, object_get_class(OBJECT(obj)), name) OBJECT_CLASS_CHECK(class, object_get_class(OBJECT(obj)), name)
#define OBJECT_CLASS(class) \
((ObjectClass *)(class))
/** /**
* InterfaceClass: * InterfaceClass:
* @parent_class: the base class * @parent_class: the base class