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[GIVFuncInfo] Document and check args

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This commit is contained in:
Johan Dahlin
2010-06-11 11:11:01 -03:00
parent 4af59a4c04
commit 5a0016133a
1 changed files with 63 additions and 6 deletions
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69
givfuncinfo.c
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@@ -27,6 +27,15 @@
#include "girepository-private.h"
#include "gitypelib-internal.h"
/**
* SECTION:givfuncinfo
* @Short_description: Struct representing a virtual function
* @Title: GIVFuncInfo
*
* GIVfuncInfo represents a virtual function. A property belongs to
* either a #GIObjectInfo or a #GIInterfaceInfo.
*/
GIVFuncInfo *
_g_base_info_find_vfunc (GIRealInfo *rinfo,
guint32 offset,
@@ -52,13 +61,26 @@ _g_base_info_find_vfunc (GIRealInfo *rinfo,
return NULL;
}
/**
* g_vfunc_info_get_flags:
* @info: a #GIVFuncInfo
*
* Obtain the flags for this virtual function info. See #GIVFuncInfoFlags for
* more information about possible flag values.
*
* Returns: the flags
*/
GIVFuncInfoFlags
g_vfunc_info_get_flags (GIVFuncInfo *info)
{
GIVFuncInfoFlags flags;
GIRealInfo *rinfo = (GIRealInfo *)info;
VFuncBlob *blob = (VFuncBlob *)&rinfo->typelib->data[rinfo->offset];
VFuncBlob *blob;
g_return_val_if_fail (info != NULL, 0);
g_return_val_if_fail (GI_IS_VFUNC_INFO (info), 0);
blob = (VFuncBlob *)&rinfo->typelib->data[rinfo->offset];
flags = 0;
@@ -74,20 +96,49 @@ g_vfunc_info_get_flags (GIVFuncInfo *info)
return flags;
}
/**
* g_vfunc_info_get_offset:
* @info: a #GIVFuncInfo
*
* Obtain the offset of the function pointer in the class struct. The value
* 0xFFFF indicates that the struct offset is unknown.
*
* Returns: the struct offset or 0xFFFF if it's unknown
*/
gint
g_vfunc_info_get_offset (GIVFuncInfo *info)
{
GIRealInfo *rinfo = (GIRealInfo *)info;
VFuncBlob *blob = (VFuncBlob *)&rinfo->typelib->data[rinfo->offset];
VFuncBlob *blob;
g_return_val_if_fail (info != NULL, 0);
g_return_val_if_fail (GI_IS_VFUNC_INFO (info), 0);
blob = (VFuncBlob *)&rinfo->typelib->data[rinfo->offset];
return blob->struct_offset;
}
/**
* g_vfunc_info_get_signal:
* @info: a #GIVFuncInfo
*
* Obtain the signal for the virtual function if one is set.
* The signal comes from the object or interface to which
* this virtual function belongs.
*
* Returns: the signal or %NULL if none set
*/
GISignalInfo *
g_vfunc_info_get_signal (GIVFuncInfo *info)
{
GIRealInfo *rinfo = (GIRealInfo *)info;
VFuncBlob *blob = (VFuncBlob *)&rinfo->typelib->data[rinfo->offset];
VFuncBlob *blob;
g_return_val_if_fail (info != NULL, 0);
g_return_val_if_fail (GI_IS_VFUNC_INFO (info), 0);
blob = (VFuncBlob *)&rinfo->typelib->data[rinfo->offset];
if (blob->class_closure)
return g_interface_info_get_signal ((GIInterfaceInfo *)rinfo->container, blob->signal);
@@ -111,14 +162,20 @@ GIFunctionInfo *
g_vfunc_info_get_invoker (GIVFuncInfo *info)
{
GIRealInfo *rinfo = (GIRealInfo *)info;
VFuncBlob *blob = (VFuncBlob *)&rinfo->typelib->data[rinfo->offset];
GIBaseInfo *container = rinfo->container;
VFuncBlob *blob;
GIBaseInfo *container;
GIInfoType parent_type;
g_return_val_if_fail (info != NULL, 0);
g_return_val_if_fail (GI_IS_VFUNC_INFO (info), 0);
blob = (VFuncBlob *)&rinfo->typelib->data[rinfo->offset];
/* 1023 = 0x3ff is the maximum of the 10 bits for invoker index */
if (blob->invoker == 1023)
return NULL;
container = rinfo->container;
parent_type = g_base_info_get_type (container);
if (parent_type == GI_INFO_TYPE_OBJECT)
return g_object_info_get_method ((GIObjectInfo*)container, blob->invoker);