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glib/ginfo.c
Colin Walters 7299c89fc9 Bug 557383 - Virtual method support 
Broadly speaking, this change adds the concept of <vfunc> to the .gir.
The typelib already had most of the infrastructure for virtual functions,
though there is one API addition.

The scanner assumes that any class callback slot that doesn't match
a signal name is a virtual.  In the .gir, we write out *both* the <method>
wrapper and a <vfunc>.  If we can determine an association between
them (based on the names matching, or a new Virtual: annotation),
then we notate that in the .gir.

The typelib gains an association from the vfunc to the function, if
it exists.  This will be useful for bindings since they already know
how to consume FunctionInfo.
2009-03-05 15:52:12 -05:00

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/* GObject introspection: Repository implementation
*
* Copyright (C) 2005 Matthias Clasen
* Copyright (C) 2008,2009 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <glib-object.h>
#include "gtypelib.h"
#include "ginfo.h"
struct _GIBaseInfo
{
gint type;
gint ref_count;
GIRepository *repository;
GIBaseInfo *container;
GTypelib *typelib;
guint32 offset;
};
struct _GIUnresolvedInfo
{
gint type;
gint ref_count;
GIBaseInfo *container;
const gchar *name;
const gchar *namespace;
};
struct _GICallableInfo
{
GIBaseInfo base;
};
struct _GIFunctionInfo
{
GICallableInfo callable;
};
struct _GICallbackInfo
{
GICallableInfo callable;
};
struct _GIRegisteredTypeInfo
{
GIBaseInfo base;
};
struct _GIStructInfo
{
GIRegisteredTypeInfo registered;
};
struct _GIEnumInfo
{
GIRegisteredTypeInfo registered;
};
struct _GIObjectInfo
{
GIRegisteredTypeInfo registered;
};
struct _GIInterfaceInfo
{
GIRegisteredTypeInfo registered;
};
struct _GIConstantInfo
{
GIBaseInfo base;
};
struct _GIValueInfo
{
GIBaseInfo base;
};
struct _GISignalInfo
{
GICallableInfo callable;
};
struct _GIVFuncInfo
{
GICallableInfo callable;
};
struct _GIPropertyInfo
{
GIBaseInfo base;
};
struct _GIFieldInfo
{
GIBaseInfo base;
};
struct _GIArgInfo
{
GIBaseInfo base;
};
struct _GITypeInfo
{
GIBaseInfo base;
};
struct _GIUnionInfo
{
GIRegisteredTypeInfo registered;
};
/* info creation */
GIBaseInfo *
g_info_new_full (GIInfoType type,
GIRepository *repository,
GIBaseInfo *container,
GTypelib *typelib,
guint32 offset)
{
GIBaseInfo *info;
g_return_val_if_fail (container != NULL || repository != NULL, NULL);
info = g_new0 (GIBaseInfo, 1);
info->ref_count = 1;
info->type = type;
info->typelib = typelib;
info->offset = offset;
if (container)
info->container = g_base_info_ref (container);
info->repository = g_object_ref (repository);
return info;
}
GIBaseInfo *
g_info_new (GIInfoType type,
GIBaseInfo *container,
GTypelib *typelib,
guint32 offset)
{
return g_info_new_full (type, container->repository, container, typelib, offset);
}
static GIBaseInfo *
g_info_from_entry (GIRepository *repository,
GTypelib *typelib,
guint16 index)
{
GIBaseInfo *result;
DirEntry *entry = g_typelib_get_dir_entry (typelib, index);
if (entry->local)
result = g_info_new_full (entry->blob_type, repository, NULL, typelib, entry->offset);
else
{
const gchar *namespace = g_typelib_get_string (typelib, entry->offset);
const gchar *name = g_typelib_get_string (typelib, entry->name);
result = g_irepository_find_by_name (repository, namespace, name);
if (result == NULL)
{
GIUnresolvedInfo *unresolved;
unresolved = g_new0 (GIUnresolvedInfo, 1);
unresolved->type = GI_INFO_TYPE_UNRESOLVED;
unresolved->ref_count = 1;
unresolved->container = NULL;
unresolved->name = name;
unresolved->namespace = namespace;
return (GIBaseInfo*)unresolved;
}
return result;
}
return result;
}
/* GIBaseInfo functions */
GIBaseInfo *
g_base_info_ref (GIBaseInfo *info)
{
info->ref_count++;
return info;
}
void
g_base_info_unref (GIBaseInfo *info)
{
g_assert (info->ref_count > 0);
info->ref_count--;
if (!info->ref_count)
{
if (info->container)
g_base_info_unref (info->container);
if (info->repository)
g_object_unref (info->repository);
g_free (info);
}
}
GIInfoType
g_base_info_get_type (GIBaseInfo *info)
{
return info->type;
}
const gchar *
g_base_info_get_name (GIBaseInfo *info)
{
g_assert (info->ref_count > 0);
switch (info->type)
{
case GI_INFO_TYPE_FUNCTION:
case GI_INFO_TYPE_CALLBACK:
case GI_INFO_TYPE_STRUCT:
case GI_INFO_TYPE_BOXED:
case GI_INFO_TYPE_ENUM:
case GI_INFO_TYPE_FLAGS:
case GI_INFO_TYPE_OBJECT:
case GI_INFO_TYPE_INTERFACE:
case GI_INFO_TYPE_CONSTANT:
case GI_INFO_TYPE_ERROR_DOMAIN:
case GI_INFO_TYPE_UNION:
{
CommonBlob *blob = (CommonBlob *)&info->typelib->data[info->offset];
return g_typelib_get_string (info->typelib, blob->name);
}
break;
case GI_INFO_TYPE_VALUE:
{
ValueBlob *blob = (ValueBlob *)&info->typelib->data[info->offset];
return g_typelib_get_string (info->typelib, blob->name);
}
break;
case GI_INFO_TYPE_SIGNAL:
{
SignalBlob *blob = (SignalBlob *)&info->typelib->data[info->offset];
return g_typelib_get_string (info->typelib, blob->name);
}
break;
case GI_INFO_TYPE_PROPERTY:
{
PropertyBlob *blob = (PropertyBlob *)&info->typelib->data[info->offset];
return g_typelib_get_string (info->typelib, blob->name);
}
break;
case GI_INFO_TYPE_VFUNC:
{
VFuncBlob *blob = (VFuncBlob *)&info->typelib->data[info->offset];
return g_typelib_get_string (info->typelib, blob->name);
}
break;
case GI_INFO_TYPE_FIELD:
{
FieldBlob *blob = (FieldBlob *)&info->typelib->data[info->offset];
return g_typelib_get_string (info->typelib, blob->name);
}
break;
case GI_INFO_TYPE_ARG:
{
ArgBlob *blob = (ArgBlob *)&info->typelib->data[info->offset];
return g_typelib_get_string (info->typelib, blob->name);
}
break;
case GI_INFO_TYPE_UNRESOLVED:
{
GIUnresolvedInfo *unresolved = (GIUnresolvedInfo *)info;
return unresolved->name;
}
break;
case GI_INFO_TYPE_TYPE:
default: ;
g_assert_not_reached ();
/* unnamed */
}
return NULL;
}
const gchar *
g_base_info_get_namespace (GIBaseInfo *info)
{
Header *header = (Header *)info->typelib->data;
g_assert (info->ref_count > 0);
if (info->type == GI_INFO_TYPE_UNRESOLVED)
{
GIUnresolvedInfo *unresolved = (GIUnresolvedInfo *)info;
return unresolved->namespace;
}
return g_typelib_get_string (info->typelib, header->namespace);
}
gboolean
g_base_info_is_deprecated (GIBaseInfo *info)
{
switch (info->type)
{
case GI_INFO_TYPE_FUNCTION:
case GI_INFO_TYPE_CALLBACK:
case GI_INFO_TYPE_STRUCT:
case GI_INFO_TYPE_BOXED:
case GI_INFO_TYPE_ENUM:
case GI_INFO_TYPE_FLAGS:
case GI_INFO_TYPE_OBJECT:
case GI_INFO_TYPE_INTERFACE:
case GI_INFO_TYPE_CONSTANT:
case GI_INFO_TYPE_ERROR_DOMAIN:
{
CommonBlob *blob = (CommonBlob *)&info->typelib->data[info->offset];
return blob->deprecated;
}
break;
case GI_INFO_TYPE_VALUE:
{
ValueBlob *blob = (ValueBlob *)&info->typelib->data[info->offset];
return blob->deprecated;
}
break;
case GI_INFO_TYPE_SIGNAL:
{
SignalBlob *blob = (SignalBlob *)&info->typelib->data[info->offset];
return blob->deprecated;
}
break;
case GI_INFO_TYPE_PROPERTY:
{
PropertyBlob *blob = (PropertyBlob *)&info->typelib->data[info->offset];
return blob->deprecated;
}
break;
case GI_INFO_TYPE_VFUNC:
case GI_INFO_TYPE_FIELD:
case GI_INFO_TYPE_ARG:
case GI_INFO_TYPE_TYPE:
default: ;
/* no deprecation flag for these */
}
return FALSE;
}
/**
* g_base_info_get_attribute:
* @info: A #GIBaseInfo
* @name: A freeform string naming an attribute
*
* Retrieve an arbitrary attribute associated with this node.
*
* Return value: The value of the attribute, or %NULL if no such attribute exists
*/
const gchar *
g_base_info_get_attribute (GIBaseInfo *info,
const gchar *name)
{
GIAttributeIter iter = { 0, };
gchar *curname, *curvalue;
while (g_base_info_iterate_attributes (info, &iter, &curname, &curvalue))
{
if (strcmp (name, curname) == 0)
return (const gchar*) curvalue;
}
return NULL;
}
static int
cmp_attribute (const void *av,
const void *bv)
{
const AttributeBlob *a = av;
const AttributeBlob *b = bv;
if (a->offset < b->offset)
return -1;
else if (a->offset == b->offset)
return 0;
else
return 1;
}
static AttributeBlob *
find_first_attribute (GIBaseInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
AttributeBlob blob, *first, *res, *previous;
blob.offset = base->offset;
first = (AttributeBlob *) &base->typelib->data[header->attributes];
res = bsearch (&blob, first, header->n_attributes,
header->attribute_blob_size, cmp_attribute);
if (res == NULL)
return NULL;
previous = res - 1;
while (previous >= first && previous->offset == base->offset)
{
res = previous;
previous = res - 1;
}
return res;
}
/**
* g_base_info_iterate_attributes:
* @info: A #GIBaseInfo
* @iter: A #GIAttributeIter structure, must be initialized; see below
* @name: (out) (transfer none): Returned name, must not be freed
* @value: (out) (transfer none): Returned name, must not be freed
*
* Iterate over all attributes associated with this node. The iterator
* structure is typically stack allocated, and must have its first
* member initialized to %NULL.
*
* Both the @name and @value should be treated as constants
* and must not be freed.
*
* <example>
* <title>Iterating over attributes</title>
* <programlisting>
* void
* print_attributes (GIBaseInfo *info)
* {
* GIAttributeIter iter = { 0, };
* char *name;
* char *value;
* while (g_base_info_iterate_attributes (info, &iter, &name, &value))
* {
* g_print ("attribute name: %s value: %s", name, value);
* }
* }
* </programlisting>
* </example>
*
* Return value: %TRUE if there are more attributes, %FALSE otherwise
*/
gboolean
g_base_info_iterate_attributes (GIBaseInfo *info,
GIAttributeIter *iter,
gchar **name,
gchar **value)
{
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
AttributeBlob *next, *after;
after = (AttributeBlob *) &base->typelib->data[header->attributes +
header->n_attributes * header->attribute_blob_size];
if (iter->data != NULL)
next = (AttributeBlob *) iter->data;
else
next = find_first_attribute (info);
if (next == NULL || next->offset != base->offset || next >= after)
return FALSE;
*name = (gchar*) g_typelib_get_string (base->typelib, next->name);
*value = (gchar*) g_typelib_get_string (base->typelib, next->value);
iter->data = next + 1;
return TRUE;
}
GIBaseInfo *
g_base_info_get_container (GIBaseInfo *info)
{
return info->container;
}
GTypelib *
g_base_info_get_typelib (GIBaseInfo *info)
{
return info->typelib;
}
/* GIFunctionInfo functions */
const gchar *
g_function_info_get_symbol (GIFunctionInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
FunctionBlob *blob = (FunctionBlob *)&base->typelib->data[base->offset];
return g_typelib_get_string (base->typelib, blob->symbol);
}
GIFunctionInfoFlags
g_function_info_get_flags (GIFunctionInfo *info)
{
GIFunctionInfoFlags flags;
GIBaseInfo *base = (GIBaseInfo *)info;
FunctionBlob *blob = (FunctionBlob *)&base->typelib->data[base->offset];
flags = 0;
/* Make sure we don't flag Constructors as methods */
if (!blob->constructor && !blob->is_static)
flags = flags | GI_FUNCTION_IS_METHOD;
if (blob->constructor)
flags = flags | GI_FUNCTION_IS_CONSTRUCTOR;
if (blob->getter)
flags = flags | GI_FUNCTION_IS_GETTER;
if (blob->setter)
flags = flags | GI_FUNCTION_IS_SETTER;
if (blob->wraps_vfunc)
flags = flags | GI_FUNCTION_WRAPS_VFUNC;
if (blob->throws)
flags = flags | GI_FUNCTION_THROWS;
return flags;
}
GIPropertyInfo *
g_function_info_get_property (GIFunctionInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
FunctionBlob *blob = (FunctionBlob *)&base->typelib->data[base->offset];
GIInterfaceInfo *container = (GIInterfaceInfo *)base->container;
return g_interface_info_get_property (container, blob->index);
}
GIVFuncInfo *
g_function_info_get_vfunc (GIFunctionInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
FunctionBlob *blob = (FunctionBlob *)&base->typelib->data[base->offset];
GIInterfaceInfo *container = (GIInterfaceInfo *)base->container;
return g_interface_info_get_vfunc (container, blob->index);
}
/* GICallableInfo functions */
static guint32
signature_offset (GICallableInfo *info)
{
int sigoff = -1;
switch (info->base.type)
{
case GI_INFO_TYPE_FUNCTION:
sigoff = G_STRUCT_OFFSET (FunctionBlob, signature);
break;
case GI_INFO_TYPE_VFUNC:
sigoff = G_STRUCT_OFFSET (VFuncBlob, signature);
break;
case GI_INFO_TYPE_CALLBACK:
sigoff = G_STRUCT_OFFSET (CallbackBlob, signature);
break;
case GI_INFO_TYPE_SIGNAL:
sigoff = G_STRUCT_OFFSET (SignalBlob, signature);
break;
}
if (sigoff >= 0)
return *(guint32 *)&info->base.typelib->data[info->base.offset + sigoff];
return 0;
}
GITypeInfo *
g_type_info_new (GIBaseInfo *container,
GTypelib *typelib,
guint32 offset)
{
SimpleTypeBlob *type = (SimpleTypeBlob *)&typelib->data[offset];
return (GITypeInfo *) g_info_new (GI_INFO_TYPE_TYPE, container, typelib,
(type->reserved == 0 && type->reserved2 == 0) ? offset : type->offset);
}
/**
* g_callable_info_get_return_type:
* @info: a #GICallableInfo
*
* Get the return type of a callable item as
* a #GITypeInfo
*
* Returns: a #GITypeInfo idexing the TypeBlob for the
* return type of #info
*/
GITypeInfo *
g_callable_info_get_return_type (GICallableInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
guint32 offset;
offset = signature_offset (info);
return g_type_info_new (base, base->typelib, offset);
}
/**
* g_callable_info_may_return_null:
* @info: a #GICallableInfo
*
* See if a callable could return NULL.
*
* Returns: TRUE if callable could return NULL
*/
gboolean
g_callable_info_may_return_null (GICallableInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
SignatureBlob *blob = (SignatureBlob *)&base->typelib->data[signature_offset (info)];
return blob->may_return_null;
}
/**
* g_callable_info_get_caller_owns:
* @info: a #GICallableInfo
*
* See whether the caller owns the return value
* of this callable.
*
* Returns: TRUE if the caller owns the return value, FALSE otherwise.
*/
GITransfer
g_callable_info_get_caller_owns (GICallableInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
SignatureBlob *blob = (SignatureBlob *)&base->typelib->data[signature_offset (info)];
if (blob->caller_owns_return_value)
return GI_TRANSFER_EVERYTHING;
else if (blob->caller_owns_return_container)
return GI_TRANSFER_CONTAINER;
else
return GI_TRANSFER_NOTHING;
}
/**
* g_callable_info_get_n_args:
* @info: a #GICallableInfo
*
* Get the number of arguments (both IN and OUT) for this callable.
*
* Returns: The number of arguments this callable expects.
*/
gint
g_callable_info_get_n_args (GICallableInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
gint offset;
SignatureBlob *blob;
offset = signature_offset (info);
blob = (SignatureBlob *)&base->typelib->data[offset];
return blob->n_arguments;
}
/**
* g_callable_info_get_arg:
* @info: a #GICallableInfo
* @n: the argument index to fetch
*
* Get information about a particular argument of this callable.
*
* Returns: A #GIArgInfo indexing the typelib on the given argument.
*/
GIArgInfo *
g_callable_info_get_arg (GICallableInfo *info,
gint n)
{
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
gint offset;
offset = signature_offset (info);
return (GIArgInfo *) g_info_new (GI_INFO_TYPE_ARG, base, base->typelib,
offset + header->signature_blob_size + n * header->arg_blob_size);
}
/* GIArgInfo function */
GIDirection
g_arg_info_get_direction (GIArgInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ArgBlob *blob = (ArgBlob *)&base->typelib->data[base->offset];
if (blob->in && blob->out)
return GI_DIRECTION_INOUT;
else if (blob->out)
return GI_DIRECTION_OUT;
else
return GI_DIRECTION_IN;
}
gboolean
g_arg_info_is_return_value (GIArgInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ArgBlob *blob = (ArgBlob *)&base->typelib->data[base->offset];
return blob->return_value;
}
gboolean
g_arg_info_is_dipper (GIArgInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ArgBlob *blob = (ArgBlob *)&base->typelib->data[base->offset];
return blob->dipper;
}
gboolean
g_arg_info_is_optional (GIArgInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ArgBlob *blob = (ArgBlob *)&base->typelib->data[base->offset];
return blob->optional;
}
gboolean
g_arg_info_may_be_null (GIArgInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ArgBlob *blob = (ArgBlob *)&base->typelib->data[base->offset];
return blob->allow_none;
}
GITransfer
g_arg_info_get_ownership_transfer (GIArgInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ArgBlob *blob = (ArgBlob *)&base->typelib->data[base->offset];
if (blob->transfer_ownership)
return GI_TRANSFER_EVERYTHING;
else if (blob->transfer_container_ownership)
return GI_TRANSFER_CONTAINER;
else
return GI_TRANSFER_NOTHING;
}
GIScopeType
g_arg_info_get_scope (GIArgInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ArgBlob *blob = (ArgBlob *)&base->typelib->data[base->offset];
return blob->scope;
}
gint
g_arg_info_get_closure (GIArgInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ArgBlob *blob = (ArgBlob *)&base->typelib->data[base->offset];
return blob->closure;
}
gint
g_arg_info_get_destroy (GIArgInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ArgBlob *blob = (ArgBlob *)&base->typelib->data[base->offset];
return blob->destroy;
}
GITypeInfo *
g_arg_info_get_type (GIArgInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
return g_type_info_new (base, base->typelib, base->offset + G_STRUCT_OFFSET (ArgBlob, arg_type));
}
/* GITypeInfo functions */
gboolean
g_type_info_is_pointer (GITypeInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
SimpleTypeBlob *type = (SimpleTypeBlob *)&base->typelib->data[base->offset];
if (type->reserved == 0 && type->reserved2 == 0)
return type->pointer;
else
{
InterfaceTypeBlob *iface = (InterfaceTypeBlob *)&base->typelib->data[base->offset];
return iface->pointer;
}
}
GITypeTag
g_type_info_get_tag (GITypeInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
SimpleTypeBlob *type = (SimpleTypeBlob *)&base->typelib->data[base->offset];
if (type->reserved == 0 && type->reserved2 == 0)
return type->tag;
else
{
InterfaceTypeBlob *iface = (InterfaceTypeBlob *)&base->typelib->data[base->offset];
return iface->tag;
}
}
GITypeInfo *
g_type_info_get_param_type (GITypeInfo *info,
gint n)
{
GIBaseInfo *base = (GIBaseInfo *)info;
SimpleTypeBlob *type = (SimpleTypeBlob *)&base->typelib->data[base->offset];
if (!(type->reserved == 0 && type->reserved2 == 0))
{
ParamTypeBlob *param = (ParamTypeBlob *)&base->typelib->data[base->offset];
switch (param->tag)
{
case GI_TYPE_TAG_ARRAY:
case GI_TYPE_TAG_GLIST:
case GI_TYPE_TAG_GSLIST:
case GI_TYPE_TAG_GHASH:
return g_type_info_new (base, base->typelib,
base->offset + sizeof (ParamTypeBlob)
+ sizeof (SimpleTypeBlob) * n);
break;
default: ;
}
}
return NULL;
}
GIBaseInfo *
g_type_info_get_interface (GITypeInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
SimpleTypeBlob *type = (SimpleTypeBlob *)&base->typelib->data[base->offset];
if (!(type->reserved == 0 && type->reserved2 == 0))
{
InterfaceTypeBlob *blob = (InterfaceTypeBlob *)&base->typelib->data[base->offset];
if (blob->tag == GI_TYPE_TAG_INTERFACE)
return g_info_from_entry (base->repository, base->typelib, blob->interface);
}
return NULL;
}
gint
g_type_info_get_array_length (GITypeInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
SimpleTypeBlob *type = (SimpleTypeBlob *)&base->typelib->data[base->offset];
if (!(type->reserved == 0 && type->reserved2 == 0))
{
ArrayTypeBlob *blob = (ArrayTypeBlob *)&base->typelib->data[base->offset];
if (blob->tag == GI_TYPE_TAG_ARRAY)
{
if (blob->has_length)
return blob->length;
}
}
return -1;
}
gint
g_type_info_get_array_fixed_size (GITypeInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
SimpleTypeBlob *type = (SimpleTypeBlob *)&base->typelib->data[base->offset];
if (!(type->reserved == 0 && type->reserved2 == 0))
{
ArrayTypeBlob *blob = (ArrayTypeBlob *)&base->typelib->data[base->offset];
if (blob->tag == GI_TYPE_TAG_ARRAY)
{
if (blob->has_size)
return blob->size;
}
}
return -1;
}
gboolean
g_type_info_is_zero_terminated (GITypeInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
SimpleTypeBlob *type = (SimpleTypeBlob *)&base->typelib->data[base->offset];
if (!(type->reserved == 0 && type->reserved2 == 0))
{
ArrayTypeBlob *blob = (ArrayTypeBlob *)&base->typelib->data[base->offset];
if (blob->tag == GI_TYPE_TAG_ARRAY)
return blob->zero_terminated;
}
return FALSE;
}
gint
g_type_info_get_n_error_domains (GITypeInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
SimpleTypeBlob *type = (SimpleTypeBlob *)&base->typelib->data[base->offset];
if (!(type->reserved == 0 && type->reserved2 == 0))
{
ErrorTypeBlob *blob = (ErrorTypeBlob *)&base->typelib->data[base->offset];
if (blob->tag == GI_TYPE_TAG_ERROR)
return blob->n_domains;
}
return 0;
}
GIErrorDomainInfo *
g_type_info_get_error_domain (GITypeInfo *info,
gint n)
{
GIBaseInfo *base = (GIBaseInfo *)info;
SimpleTypeBlob *type = (SimpleTypeBlob *)&base->typelib->data[base->offset];
if (!(type->reserved == 0 && type->reserved2 == 0))
{
ErrorTypeBlob *blob = (ErrorTypeBlob *)&base->typelib->data[base->offset];
if (blob->tag == GI_TYPE_TAG_ERROR)
return (GIErrorDomainInfo *) g_info_from_entry (base->repository,
base->typelib,
blob->domains[n]);
}
return NULL;
}
/* GIErrorDomainInfo functions */
const gchar *
g_error_domain_info_get_quark (GIErrorDomainInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ErrorDomainBlob *blob = (ErrorDomainBlob *)&base->typelib->data[base->offset];
return g_typelib_get_string (base->typelib, blob->get_quark);
}
GIInterfaceInfo *
g_error_domain_info_get_codes (GIErrorDomainInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ErrorDomainBlob *blob = (ErrorDomainBlob *)&base->typelib->data[base->offset];
return (GIInterfaceInfo *) g_info_from_entry (base->repository,
base->typelib, blob->error_codes);
}
/* GIValueInfo functions */
glong
g_value_info_get_value (GIValueInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ValueBlob *blob = (ValueBlob *)&base->typelib->data[base->offset];
return (glong)blob->value;
}
/* GIFieldInfo functions */
GIFieldInfoFlags
g_field_info_get_flags (GIFieldInfo *info)
{
GIFieldInfoFlags flags;
GIBaseInfo *base = (GIBaseInfo *)info;
FieldBlob *blob = (FieldBlob *)&base->typelib->data[base->offset];
flags = 0;
if (blob->readable)
flags = flags | GI_FIELD_IS_READABLE;
if (blob->writable)
flags = flags | GI_FIELD_IS_WRITABLE;
return flags;
}
gint
g_field_info_get_size (GIFieldInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
FieldBlob *blob = (FieldBlob *)&base->typelib->data[base->offset];
return blob->bits;
}
gint
g_field_info_get_offset (GIFieldInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
FieldBlob *blob = (FieldBlob *)&base->typelib->data[base->offset];
return blob->struct_offset;
}
GITypeInfo *
g_field_info_get_type (GIFieldInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
return g_type_info_new (base, base->typelib, base->offset + G_STRUCT_OFFSET (FieldBlob, type));
}
/* GIRegisteredTypeInfo functions */
const gchar *
g_registered_type_info_get_type_name (GIRegisteredTypeInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
RegisteredTypeBlob *blob = (RegisteredTypeBlob *)&base->typelib->data[base->offset];
if (blob->gtype_name)
return g_typelib_get_string (base->typelib, blob->gtype_name);
return NULL;
}
const gchar *
g_registered_type_info_get_type_init (GIRegisteredTypeInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
RegisteredTypeBlob *blob = (RegisteredTypeBlob *)&base->typelib->data[base->offset];
if (blob->gtype_init)
return g_typelib_get_string (base->typelib, blob->gtype_init);
return NULL;
}
GType
g_registered_type_info_get_g_type (GIRegisteredTypeInfo *info)
{
const char *type_init;
GType (* get_type_func) (void);
type_init = g_registered_type_info_get_type_init (info);
if (type_init == NULL)
return G_TYPE_NONE;
else if (!strcmp (type_init, "intern"))
return G_TYPE_OBJECT;
get_type_func = NULL;
if (!g_typelib_symbol (((GIBaseInfo*)info)->typelib,
type_init,
(void**) &get_type_func))
return G_TYPE_NONE;
return (* get_type_func) ();
}
/* GIStructInfo functions */
gint
g_struct_info_get_n_fields (GIStructInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
StructBlob *blob = (StructBlob *)&base->typelib->data[base->offset];
return blob->n_fields;
}
GIFieldInfo *
g_struct_info_get_field (GIStructInfo *info,
gint n)
{
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
return (GIFieldInfo *) g_info_new (GI_INFO_TYPE_FIELD, base, base->typelib,
base->offset + header->struct_blob_size +
n * header->field_blob_size);
}
gint
g_struct_info_get_n_methods (GIStructInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
StructBlob *blob = (StructBlob *)&base->typelib->data[base->offset];
return blob->n_methods;
}
GIFunctionInfo *
g_struct_info_get_method (GIStructInfo *info,
gint n)
{
GIBaseInfo *base = (GIBaseInfo *)info;
StructBlob *blob = (StructBlob *)&base->typelib->data[base->offset];
Header *header = (Header *)base->typelib->data;
gint offset;
offset = base->offset + header->struct_blob_size
+ blob->n_fields * header->field_blob_size
+ n * header->function_blob_size;
return (GIFunctionInfo *) g_info_new (GI_INFO_TYPE_FUNCTION, base,
base->typelib, offset);
}
static GIFunctionInfo *
find_method (GIBaseInfo *base,
guint32 offset,
gint n_methods,
const gchar *name)
{
/* FIXME hash */
Header *header = (Header *)base->typelib->data;
gint i;
for (i = 0; i < n_methods; i++)
{
FunctionBlob *fblob = (FunctionBlob *)&base->typelib->data[offset];
const gchar *fname = (const gchar *)&base->typelib->data[fblob->name];
if (strcmp (name, fname) == 0)
return (GIFunctionInfo *) g_info_new (GI_INFO_TYPE_FUNCTION, base,
base->typelib, offset);
offset += header->function_blob_size;
}
return NULL;
}
GIFunctionInfo *
g_struct_info_find_method (GIStructInfo *info,
const gchar *name)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
StructBlob *blob = (StructBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->struct_blob_size
+ blob->n_fields * header->field_blob_size;
return find_method (base, offset, blob->n_methods, name);
}
gsize
g_struct_info_get_size (GIStructInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
StructBlob *blob = (StructBlob *)&base->typelib->data[base->offset];
return blob->size;
}
gsize
g_struct_info_get_alignment (GIStructInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
StructBlob *blob = (StructBlob *)&base->typelib->data[base->offset];
return blob->alignment;
}
/**
* g_struct_info_is_gtype_struct:
* @info: GIStructInfo
*
* Return true if this structure represents the "class structure" for some
* #GObject or #GInterface. This function is mainly useful to hide this kind of structure
* from generated public APIs.
*
* Returns: %TRUE if this is a class struct, %FALSE otherwise
*/
gboolean
g_struct_info_is_gtype_struct (GIStructInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
StructBlob *blob = (StructBlob *)&base->typelib->data[base->offset];
return blob->is_gtype_struct;
}
gint
g_enum_info_get_n_values (GIEnumInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
EnumBlob *blob = (EnumBlob *)&base->typelib->data[base->offset];
return blob->n_values;
}
GIValueInfo *
g_enum_info_get_value (GIEnumInfo *info,
gint n)
{
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
gint offset;
offset = base->offset + header->enum_blob_size
+ n * header->value_blob_size;
return (GIValueInfo *) g_info_new (GI_INFO_TYPE_VALUE, base, base->typelib, offset);
}
/**
* g_enum_info_get_storage_type:
* @info: GIEnumInfo
*
* Gets the tag of the type used for the enum in the C ABI. This will
* will be a signed or unsigned integral type.
* Note that in the current implementation the width of the type is
* computed correctly, but the signed or unsigned nature of the type
* may not match the sign of the type used by the C compiler.
*
* Return Value: the storage type for the enumeration
*/
GITypeTag
g_enum_info_get_storage_type (GIEnumInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
EnumBlob *blob = (EnumBlob *)&base->typelib->data[base->offset];
return blob->storage_type;
}
/* GIObjectInfo functions */
GIObjectInfo *
g_object_info_get_parent (GIObjectInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
if (blob->parent)
return (GIObjectInfo *) g_info_from_entry (base->repository,
base->typelib, blob->parent);
else
return NULL;
}
gboolean
g_object_info_get_abstract (GIObjectInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
return blob->abstract != 0;
}
const gchar *
g_object_info_get_type_name (GIObjectInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
return g_typelib_get_string (base->typelib, blob->gtype_name);
}
const gchar *
g_object_info_get_type_init (GIObjectInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
return g_typelib_get_string (base->typelib, blob->gtype_init);
}
gint
g_object_info_get_n_interfaces (GIObjectInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
return blob->n_interfaces;
}
GIInterfaceInfo *
g_object_info_get_interface (GIObjectInfo *info,
gint n)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
return (GIInterfaceInfo *) g_info_from_entry (base->repository,
base->typelib, blob->interfaces[n]);
}
gint
g_object_info_get_n_fields (GIObjectInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
return blob->n_fields;
}
GIFieldInfo *
g_object_info_get_field (GIObjectInfo *info,
gint n)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->object_blob_size
+ (blob->n_interfaces + blob->n_interfaces % 2) * 2
+ n * header->field_blob_size;
return (GIFieldInfo *) g_info_new (GI_INFO_TYPE_FIELD, base, base->typelib, offset);
}
gint
g_object_info_get_n_properties (GIObjectInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
return blob->n_properties;
}
GIPropertyInfo *
g_object_info_get_property (GIObjectInfo *info,
gint n)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->object_blob_size
+ (blob->n_interfaces + blob->n_interfaces % 2) * 2
+ blob->n_fields * header->field_blob_size
+ n * header->property_blob_size;
return (GIPropertyInfo *) g_info_new (GI_INFO_TYPE_PROPERTY, base,
base->typelib, offset);
}
gint
g_object_info_get_n_methods (GIObjectInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
return blob->n_methods;
}
GIFunctionInfo *
g_object_info_get_method (GIObjectInfo *info,
gint n)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->object_blob_size
+ (blob->n_interfaces + blob->n_interfaces % 2) * 2
+ blob->n_fields * header->field_blob_size
+ blob->n_properties * header->property_blob_size
+ n * header->function_blob_size;
return (GIFunctionInfo *) g_info_new (GI_INFO_TYPE_FUNCTION, base,
base->typelib, offset);
}
GIFunctionInfo *
g_object_info_find_method (GIObjectInfo *info,
const gchar *name)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->object_blob_size
+ (blob->n_interfaces + blob->n_interfaces % 2) * 2
+ blob->n_fields * header->field_blob_size +
+ blob->n_properties * header->property_blob_size;
return find_method (base, offset, blob->n_methods, name);
}
gint
g_object_info_get_n_signals (GIObjectInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
return blob->n_signals;
}
GISignalInfo *
g_object_info_get_signal (GIObjectInfo *info,
gint n)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->object_blob_size
+ (blob->n_interfaces + blob->n_interfaces % 2) * 2
+ blob->n_fields * header->field_blob_size
+ blob->n_properties * header->property_blob_size
+ blob->n_methods * header->function_blob_size
+ n * header->signal_blob_size;
return (GISignalInfo *) g_info_new (GI_INFO_TYPE_SIGNAL, base,
base->typelib, offset);
}
gint
g_object_info_get_n_vfuncs (GIObjectInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
return blob->n_vfuncs;
}
GIVFuncInfo *
g_object_info_get_vfunc (GIObjectInfo *info,
gint n)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->object_blob_size
+ (blob->n_interfaces + blob->n_interfaces % 2) * 2
+ blob->n_fields * header->field_blob_size
+ blob->n_properties * header->property_blob_size
+ blob->n_methods * header->function_blob_size
+ blob->n_signals * header->signal_blob_size
+ n * header->vfunc_blob_size;
return (GIVFuncInfo *) g_info_new (GI_INFO_TYPE_VFUNC, base,
base->typelib, offset);
}
static GIVFuncInfo *
find_vfunc (GIBaseInfo *base,
guint32 offset,
gint n_vfuncs,
const gchar *name)
{
/* FIXME hash */
Header *header = (Header *)base->typelib->data;
gint i;
for (i = 0; i < n_vfuncs; i++)
{
VFuncBlob *fblob = (VFuncBlob *)&base->typelib->data[offset];
const gchar *fname = (const gchar *)&base->typelib->data[fblob->name];
if (strcmp (name, fname) == 0)
return (GIVFuncInfo *) g_info_new (GI_INFO_TYPE_VFUNC, base,
base->typelib, offset);
offset += header->vfunc_blob_size;
}
return NULL;
}
/**
* g_object_info_find_vfunc:
* @info: An #GIObjectInfo
* @name: The name of a virtual function to find.
*
* Locate a virtual function slot with name @name. Note that the namespace
* for virtuals is distinct from that of methods; there may or may not be
* a concrete method associated for a virtual. If there is one, it may
* be retrieved using #g_vfunc_info_get_invoker. See the documentation for
* that function for more information on invoking virtuals.
*
* Return value: (transfer full): A #GIVFuncInfo, or %NULL if none with name @name.
*/
GIVFuncInfo *
g_object_info_find_vfunc (GIObjectInfo *info,
const gchar *name)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->object_blob_size
+ (blob->n_interfaces + blob->n_interfaces % 2) * 2
+ blob->n_fields * header->field_blob_size
+ blob->n_properties * header->property_blob_size
+ blob->n_methods * header->function_blob_size
+ blob->n_signals * header->signal_blob_size;
return find_vfunc (base, offset, blob->n_vfuncs, name);
}
gint
g_object_info_get_n_constants (GIObjectInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
return blob->n_constants;
}
GIConstantInfo *
g_object_info_get_constant (GIObjectInfo *info,
gint n)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->object_blob_size
+ (blob->n_interfaces + blob->n_interfaces % 2) * 2
+ blob->n_fields * header->field_blob_size
+ blob->n_properties * header->property_blob_size
+ blob->n_methods * header->function_blob_size
+ blob->n_signals * header->signal_blob_size
+ blob->n_vfuncs * header->vfunc_blob_size
+ n * header->constant_blob_size;
return (GIConstantInfo *) g_info_new (GI_INFO_TYPE_CONSTANT, base,
base->typelib, offset);
}
/**
* g_object_info_get_class_struct:
* @info: A #GIObjectInfo to query
*
* Every #GObject has two structures; an instance structure and a class
* structure. This function returns the metadata for the class structure.
*
* Returns: a #GIStructInfo for the class struct or %NULL if none found.
*/
GIStructInfo *
g_object_info_get_class_struct (GIObjectInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ObjectBlob *blob = (ObjectBlob *)&base->typelib->data[base->offset];
if (blob->gtype_struct)
return (GIStructInfo *) g_info_from_entry (base->repository,
base->typelib, blob->gtype_struct);
else
return NULL;
}
/* GIInterfaceInfo functions */
gint
g_interface_info_get_n_prerequisites (GIInterfaceInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
return blob->n_prerequisites;
}
GIBaseInfo *
g_interface_info_get_prerequisite (GIInterfaceInfo *info,
gint n)
{
GIBaseInfo *base = (GIBaseInfo *)info;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
return g_info_from_entry (base->repository,
base->typelib, blob->prerequisites[n]);
}
gint
g_interface_info_get_n_properties (GIInterfaceInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
return blob->n_properties;
}
GIPropertyInfo *
g_interface_info_get_property (GIInterfaceInfo *info,
gint n)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->interface_blob_size
+ (blob->n_prerequisites + (blob->n_prerequisites % 2)) * 2
+ n * header->property_blob_size;
return (GIPropertyInfo *) g_info_new (GI_INFO_TYPE_PROPERTY, base,
base->typelib, offset);
}
gint
g_interface_info_get_n_methods (GIInterfaceInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
return blob->n_methods;
}
GIFunctionInfo *
g_interface_info_get_method (GIInterfaceInfo *info,
gint n)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->interface_blob_size
+ (blob->n_prerequisites + (blob->n_prerequisites % 2)) * 2
+ blob->n_properties * header->property_blob_size
+ n * header->function_blob_size;
return (GIFunctionInfo *) g_info_new (GI_INFO_TYPE_FUNCTION, base,
base->typelib, offset);
}
GIFunctionInfo *
g_interface_info_find_method (GIInterfaceInfo *info,
const gchar *name)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->interface_blob_size
+ (blob->n_prerequisites + (blob->n_prerequisites % 2)) * 2
+ blob->n_properties * header->property_blob_size;
return find_method (base, offset, blob->n_methods, name);
}
gint
g_interface_info_get_n_signals (GIInterfaceInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
return blob->n_signals;
}
GISignalInfo *
g_interface_info_get_signal (GIInterfaceInfo *info,
gint n)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->interface_blob_size
+ (blob->n_prerequisites + (blob->n_prerequisites % 2)) * 2
+ blob->n_properties * header->property_blob_size
+ blob->n_methods * header->function_blob_size
+ n * header->signal_blob_size;
return (GISignalInfo *) g_info_new (GI_INFO_TYPE_SIGNAL, base,
base->typelib, offset);
}
gint
g_interface_info_get_n_vfuncs (GIInterfaceInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
return blob->n_vfuncs;
}
GIVFuncInfo *
g_interface_info_get_vfunc (GIInterfaceInfo *info,
gint n)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->interface_blob_size
+ (blob->n_prerequisites + (blob->n_prerequisites % 2)) * 2
+ blob->n_properties * header->property_blob_size
+ blob->n_methods * header->function_blob_size
+ blob->n_signals * header->signal_blob_size
+ n * header->vfunc_blob_size;
return (GIVFuncInfo *) g_info_new (GI_INFO_TYPE_VFUNC, base,
base->typelib, offset);
}
/**
* g_interface_info_find_vfunc:
* @info: An #GIObjectInfo
* @name: The name of a virtual function to find.
*
* Locate a virtual function slot with name @name. See the documentation
* for #g_object_info_find_vfunc for more information on virtuals.
*
* Return value: (transfer full): A #GIVFuncInfo, or %NULL if none with name @name.
*/
GIVFuncInfo *
g_interface_info_find_vfunc (GIInterfaceInfo *info,
const gchar *name)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->interface_blob_size
+ (blob->n_prerequisites + blob->n_prerequisites % 2) * 2
+ blob->n_properties * header->property_blob_size
+ blob->n_methods * header->function_blob_size
+ blob->n_signals * header->signal_blob_size;
return find_vfunc (base, offset, blob->n_vfuncs, name);
}
gint
g_interface_info_get_n_constants (GIInterfaceInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
return blob->n_constants;
}
GIConstantInfo *
g_interface_info_get_constant (GIInterfaceInfo *info,
gint n)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->interface_blob_size
+ (blob->n_prerequisites + (blob->n_prerequisites % 2)) * 2
+ blob->n_properties * header->property_blob_size
+ blob->n_methods * header->function_blob_size
+ blob->n_signals * header->signal_blob_size
+ blob->n_vfuncs * header->vfunc_blob_size
+ n * header->constant_blob_size;
return (GIConstantInfo *) g_info_new (GI_INFO_TYPE_CONSTANT, base,
base->typelib, offset);
}
/**
* g_interface_info_get_iface_struct:
* @info: A #GIInterfaceInfo to query
*
* Returns the layout C structure associated with this #GInterface.
*
* Returns: A #GIStructInfo for the class struct or %NULL if none found.
*/
GIStructInfo *
g_interface_info_get_iface_struct (GIInterfaceInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
InterfaceBlob *blob = (InterfaceBlob *)&base->typelib->data[base->offset];
if (blob->gtype_struct)
return (GIStructInfo *) g_info_from_entry (base->repository,
base->typelib, blob->gtype_struct);
else
return NULL;
}
/* GIPropertyInfo functions */
GParamFlags
g_property_info_get_flags (GIPropertyInfo *info)
{
GParamFlags flags;
GIBaseInfo *base = (GIBaseInfo *)info;
PropertyBlob *blob = (PropertyBlob *)&base->typelib->data[base->offset];
flags = 0;
if (blob->readable)
flags = flags | G_PARAM_READABLE;
if (blob->writable)
flags = flags | G_PARAM_WRITABLE;
if (blob->construct)
flags = flags | G_PARAM_CONSTRUCT;
if (blob->construct_only)
flags = flags | G_PARAM_CONSTRUCT_ONLY;
return flags;
}
GITypeInfo *
g_property_info_get_type (GIPropertyInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
return g_type_info_new (base, base->typelib, base->offset + G_STRUCT_OFFSET (PropertyBlob, type));
}
/* GISignalInfo functions */
GSignalFlags
g_signal_info_get_flags (GISignalInfo *info)
{
GSignalFlags flags;
GIBaseInfo *base = (GIBaseInfo *)info;
SignalBlob *blob = (SignalBlob *)&base->typelib->data[base->offset];
flags = 0;
if (blob->run_first)
flags = flags | G_SIGNAL_RUN_FIRST;
if (blob->run_last)
flags = flags | G_SIGNAL_RUN_LAST;
if (blob->run_cleanup)
flags = flags | G_SIGNAL_RUN_CLEANUP;
if (blob->no_recurse)
flags = flags | G_SIGNAL_NO_RECURSE;
if (blob->detailed)
flags = flags | G_SIGNAL_DETAILED;
if (blob->action)
flags = flags | G_SIGNAL_ACTION;
if (blob->no_hooks)
flags = flags | G_SIGNAL_NO_HOOKS;
return flags;
}
GIVFuncInfo *
g_signal_info_get_class_closure (GISignalInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
SignalBlob *blob = (SignalBlob *)&base->typelib->data[base->offset];
if (blob->has_class_closure)
return g_interface_info_get_vfunc ((GIInterfaceInfo *)base->container, blob->class_closure);
return NULL;
}
gboolean
g_signal_info_true_stops_emit (GISignalInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
SignalBlob *blob = (SignalBlob *)&base->typelib->data[base->offset];
return blob->true_stops_emit;
}
/* GIVFuncInfo functions */
GIVFuncInfoFlags
g_vfunc_info_get_flags (GIVFuncInfo *info)
{
GIVFuncInfoFlags flags;
GIBaseInfo *base = (GIBaseInfo *)info;
VFuncBlob *blob = (VFuncBlob *)&base->typelib->data[base->offset];
flags = 0;
if (blob->must_chain_up)
flags = flags | GI_VFUNC_MUST_CHAIN_UP;
if (blob->must_be_implemented)
flags = flags | GI_VFUNC_MUST_OVERRIDE;
if (blob->must_not_be_implemented)
flags = flags | GI_VFUNC_MUST_NOT_OVERRIDE;
return flags;
}
gint
g_vfunc_info_get_offset (GIVFuncInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
VFuncBlob *blob = (VFuncBlob *)&base->typelib->data[base->offset];
return blob->struct_offset;
}
GISignalInfo *
g_vfunc_info_get_signal (GIVFuncInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
VFuncBlob *blob = (VFuncBlob *)&base->typelib->data[base->offset];
if (blob->class_closure)
return g_interface_info_get_signal ((GIInterfaceInfo *)base->container, blob->signal);
return NULL;
}
/**
* g_vfunc_info_get_invoker:
* @info: A #GIVFuncInfo
*
* If this virtual function has an associated invoker method, this
* method will return it. An invoker method is a C entry point.
*
* Not all virtuals will have invokers.
*
* Return value: (transfer full): An invoker function, or %NULL if none known
*/
GIFunctionInfo *
g_vfunc_info_get_invoker (GIVFuncInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
VFuncBlob *blob = (VFuncBlob *)&base->typelib->data[base->offset];
GIBaseInfo *container = base->container;
GIInfoType parent_type;
/* 1023 = 0x3ff is the maximum of the 10 bits for invoker index */
if (blob->invoker == 1023)
return NULL;
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);
else if (parent_type == GI_INFO_TYPE_INTERFACE)
return g_interface_info_get_method ((GIInterfaceInfo*)container, blob->invoker);
else
g_assert_not_reached ();
}
/* GIConstantInfo functions */
GITypeInfo *
g_constant_info_get_type (GIConstantInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
return g_type_info_new (base, base->typelib, base->offset + 8);
}
gint
g_constant_info_get_value (GIConstantInfo *info,
GArgument *value)
{
GIBaseInfo *base = (GIBaseInfo *)info;
ConstantBlob *blob = (ConstantBlob *)&base->typelib->data[base->offset];
/* FIXME non-basic types ? */
if (blob->type.reserved == 0 && blob->type.reserved2 == 0)
{
if (blob->type.pointer)
value->v_pointer = g_memdup (&base->typelib->data[blob->offset], blob->size);
else
{
switch (blob->type.tag)
{
case GI_TYPE_TAG_BOOLEAN:
value->v_boolean = *(gboolean*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_INT8:
value->v_int8 = *(gint8*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_UINT8:
value->v_uint8 = *(guint8*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_INT16:
value->v_int16 = *(gint16*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_UINT16:
value->v_uint16 = *(guint16*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_INT32:
value->v_int32 = *(gint32*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_UINT32:
value->v_uint32 = *(guint32*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_INT64:
value->v_int64 = *(gint64*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_UINT64:
value->v_uint64 = *(guint64*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_FLOAT:
value->v_float = *(gfloat*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_DOUBLE:
value->v_double = *(gdouble*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_TIME_T:
value->v_long = *(long*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_INT:
value->v_int = *(gint*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_UINT:
value->v_uint = *(guint*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_LONG:
value->v_long = *(glong*)&base->typelib->data[blob->offset];
break;
case GI_TYPE_TAG_ULONG:
value->v_ulong = *(gulong*)&base->typelib->data[blob->offset];
break;
}
}
}
return blob->size;
}
/* GIUnionInfo functions */
gint
g_union_info_get_n_fields (GIUnionInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
UnionBlob *blob = (UnionBlob *)&base->typelib->data[base->offset];
return blob->n_fields;
}
GIFieldInfo *
g_union_info_get_field (GIUnionInfo *info,
gint n)
{
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
return (GIFieldInfo *) g_info_new (GI_INFO_TYPE_FIELD, base, base->typelib,
base->offset + header->union_blob_size +
n * header->field_blob_size);
}
gint
g_union_info_get_n_methods (GIUnionInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
UnionBlob *blob = (UnionBlob *)&base->typelib->data[base->offset];
return blob->n_functions;
}
GIFunctionInfo *
g_union_info_get_method (GIUnionInfo *info,
gint n)
{
GIBaseInfo *base = (GIBaseInfo *)info;
UnionBlob *blob = (UnionBlob *)&base->typelib->data[base->offset];
Header *header = (Header *)base->typelib->data;
gint offset;
offset = base->offset + header->union_blob_size
+ blob->n_fields * header->field_blob_size
+ n * header->function_blob_size;
return (GIFunctionInfo *) g_info_new (GI_INFO_TYPE_FUNCTION, base,
base->typelib, offset);
}
gboolean
g_union_info_is_discriminated (GIUnionInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
UnionBlob *blob = (UnionBlob *)&base->typelib->data[base->offset];
return blob->discriminated;
}
gint
g_union_info_get_discriminator_offset (GIUnionInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
UnionBlob *blob = (UnionBlob *)&base->typelib->data[base->offset];
return blob->discriminator_offset;
}
GITypeInfo *
g_union_info_get_discriminator_type (GIUnionInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
return g_type_info_new (base, base->typelib, base->offset + 24);
}
GIConstantInfo *
g_union_info_get_discriminator (GIUnionInfo *info,
gint n)
{
GIBaseInfo *base = (GIBaseInfo *)info;
UnionBlob *blob = (UnionBlob *)&base->typelib->data[base->offset];
if (blob->discriminated)
{
Header *header = (Header *)base->typelib->data;
gint offset;
offset = base->offset + header->union_blob_size
+ blob->n_fields * header->field_blob_size
+ blob->n_functions * header->function_blob_size
+ n * header->constant_blob_size;
return (GIConstantInfo *) g_info_new (GI_INFO_TYPE_CONSTANT, base,
base->typelib, offset);
}
return NULL;
}
GIFunctionInfo *
g_union_info_find_method (GIUnionInfo *info,
const gchar *name)
{
gint offset;
GIBaseInfo *base = (GIBaseInfo *)info;
Header *header = (Header *)base->typelib->data;
UnionBlob *blob = (UnionBlob *)&base->typelib->data[base->offset];
offset = base->offset + header->union_blob_size
+ blob->n_fields * header->field_blob_size;
return find_method (base, offset, blob->n_functions, name);
}
gsize
g_union_info_get_size (GIUnionInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
UnionBlob *blob = (UnionBlob *)&base->typelib->data[base->offset];
return blob->size;
}
gsize
g_union_info_get_alignment (GIUnionInfo *info)
{
GIBaseInfo *base = (GIBaseInfo *)info;
UnionBlob *blob = (UnionBlob *)&base->typelib->data[base->offset];
return blob->alignment;
}
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