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[giconstantinfo] Document and check parameters

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This commit is contained in:
Johan Dahlin 2010-06-06 22:48:08 -03:00
parent 6e11316e28
commit a2df86f9f6
1 changed files with 40 additions and 1 deletions
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41
giconstantinfo.c
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@ -26,20 +26,59 @@
#include "gitypelib-internal.h"
#include "girffi.h"
/**
* SECTION:giconstantinfo
* @Short_description: Struct representing a constant
* @Title: GIConstantInfo
*
* GIConstantInfo represents a constant. A constant has a type associated
* which can be obtained by calling g_constant_info_get_type() and a value,
* which can be obtained by calling g_constant_info_get_value().
*/
/**
* g_constant_info_get_type:
* @info: a #GIConstantInfo
*
* Obtain the type of the constant as a #GITypeInfo.
*
* Returns: (transfer full): the #GITypeInfo. Free the struct by calling
* g_base_info_unref() when done.
*/
GITypeInfo *
g_constant_info_get_type (GIConstantInfo *info)
{
GIRealInfo *rinfo = (GIRealInfo *)info;
g_return_val_if_fail (info != NULL, NULL);
g_return_val_if_fail (GI_IS_CONSTANT_INFO (info), NULL);
return _g_type_info_new ((GIBaseInfo*)info, rinfo->typelib, rinfo->offset + 8);
}
/**
* g_constant_info_get_value:
* @info: a #GIConstantInfo
* @value: (out): an argument
*
* Obtain the value associated with the #GIConstantInfo and store it in the
* @value parameter. @argument needs to be allocated before passing it in.
* The size of the constant value stored in @argument will be returned.
*
* Returns: size of the constant
*/
gint
g_constant_info_get_value (GIConstantInfo *info,
GArgument *value)
{
GIRealInfo *rinfo = (GIRealInfo *)info;
ConstantBlob *blob = (ConstantBlob *)&rinfo->typelib->data[rinfo->offset];
ConstantBlob *blob;
g_return_val_if_fail (info != NULL, 0);
g_return_val_if_fail (GI_IS_CONSTANT_INFO (info), 0);
blob = (ConstantBlob *)&rinfo->typelib->data[rinfo->offset];
/* FIXME non-basic types ? */
if (blob->type.flags.reserved == 0 && blob->type.flags.reserved2 == 0)