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glib/gtypelib.h
Andreas Rottmann b95d92aca0 Bug 556489 – callback annotations 
2008-01-03  Andreas Rottmann  <a.rottmann@gmx.at>

	Bug 556489 – callback annotations
	
	* giscanner/transformer.py 

	* tools/generate.c (write_callable_info): Write out the new scope,
	closure and destroy attributes.

	* giscanner/transformer.py (Transformer._type_is_callback): New
	method, checking if a given type is a callback.
	(Transformer._augment_callback_params): New method; adds
	information (closure, destroy) to callback parameters.
	(Transformer._handle_closure, Transformer._handle_destroy): New methods, 
	auxiliary to _augment_callback_params.
	(Transformer._create_function): Call _augment_callback_params().
	(Transformer._create_parameter): Handle scope option.

	(Transformer._create_typedef_callback): New method, creates a
	callback, and registers it in the typedef namespace
	(Transformer._create_typedef): Use _create_typedef_callback()
	instead of the plain _create_callback().

	* giscanner/ast.py (Parameter): Added callback-related fields.
	* giscanner/girwriter.py: Write out new Parameter fields.

	* girepository/girnode.h (GIrNodeParam): Added fields scope, 
	closure and destroy.
	* girepository/gtypelib.h (ArgBlob): Ditto.
	* girepository/girparser.c (start_parameter): Handle new fields.

	* girepository/girmodule.c (g_ir_module_build_typelib): Adjust
	arg_blob_size, bump major version due to this change.
	* girepository/girnode.c (g_ir_node_get_full_size_internal)
	(g_ir_node_build_typelib)
	* girepository/gtypelib.c (g_typelib_check_sanity): ArgBlob size
	adjustments.
	(g_ir_node_build_typelib): Fill in new ArgBlob flags from param. 

	* girepository/girepository.h (GIScope): New enumeration, listing
	the different possible scopes for callbacks.

	* girepository/ginfo.c (g_arg_info_get_scope)
	(g_arg_info_get_closure, g_arg_info_get_destroy): Accessors for
	callback-related argument indices (callback scope, closure for a
	callback, destroy notification for a callback).

	* tests/scanner/: Added testcases for new features.

svn path=/trunk/; revision=998
2009-01-03 13:44:42 +00:00

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/* GObject introspection: struct definitions for the binary
* typelib format, validation
*
* Copyright (C) 2005 Matthias Clasen
*
* 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.
*/
#ifndef __G_TYPELIB_H__
#define __G_TYPELIB_H__
#include <gmodule.h>
#include "girepository.h"
G_BEGIN_DECLS
#define G_IR_MAGIC "GOBJ\nMETADATA\r\n\032"
enum
{
BLOB_TYPE_INVALID,
BLOB_TYPE_FUNCTION,
BLOB_TYPE_CALLBACK,
BLOB_TYPE_STRUCT,
BLOB_TYPE_BOXED,
BLOB_TYPE_ENUM,
BLOB_TYPE_FLAGS,
BLOB_TYPE_OBJECT,
BLOB_TYPE_INTERFACE,
BLOB_TYPE_CONSTANT,
BLOB_TYPE_ERROR_DOMAIN,
BLOB_TYPE_UNION
};
#define BLOB_IS_REGISTERED_TYPE(blob) \
((blob)->blob_type == BLOB_TYPE_STRUCT || \
(blob)->blob_type == BLOB_TYPE_UNION || \
(blob)->blob_type == BLOB_TYPE_ENUM || \
(blob)->blob_type == BLOB_TYPE_OBJECT || \
(blob)->blob_type == BLOB_TYPE_INTERFACE)
typedef struct
{
gchar magic[16];
guint8 major_version;
guint8 minor_version;
guint16 reserved;
guint16 n_entries;
guint16 n_local_entries;
guint32 directory;
guint32 n_annotations;
guint32 annotations;
guint32 dependencies;
guint32 size;
guint32 namespace;
guint32 nsversion;
guint32 shared_library;
guint16 entry_blob_size;
guint16 function_blob_size;
guint16 callback_blob_size;
guint16 signal_blob_size;
guint16 vfunc_blob_size;
guint16 arg_blob_size;
guint16 property_blob_size;
guint16 field_blob_size;
guint16 value_blob_size;
guint16 annotation_blob_size;
guint16 constant_blob_size;
guint16 error_domain_blob_size;
guint16 signature_blob_size;
guint16 enum_blob_size;
guint16 struct_blob_size;
guint16 object_blob_size;
guint16 interface_blob_size;
guint16 union_blob_size;
guint16 padding[7];
} Header;
typedef struct
{
guint16 blob_type;
guint16 local : 1;
guint16 reserved :15;
guint32 name;
guint32 offset;
} DirEntry;
typedef union
{
struct
{
guint reserved : 8;
guint reserved2 :16;
guint pointer : 1;
guint reserved3 : 2;
guint tag : 5;
};
guint32 offset;
} SimpleTypeBlob;
typedef struct
{
guint32 name;
guint in : 1;
guint out : 1;
guint dipper : 1;
guint allow_none : 1;
guint optional : 1;
guint transfer_ownership : 1;
guint transfer_container_ownership : 1;
guint return_value : 1;
guint scope : 3;
guint reserved :21;
gint8 closure;
gint8 destroy;
SimpleTypeBlob arg_type;
} ArgBlob;
typedef struct
{
SimpleTypeBlob return_type;
guint16 may_return_null : 1;
guint16 caller_owns_return_value : 1;
guint16 caller_owns_return_container : 1;
guint16 reserved :13;
guint16 n_arguments;
ArgBlob arguments[];
} SignatureBlob;
typedef struct
{
guint16 blob_type; /* 1 */
guint16 deprecated : 1;
guint16 reserved :15;
guint32 name;
} CommonBlob;
typedef struct
{
guint16 blob_type; /* 1 */
guint16 deprecated : 1;
guint16 setter : 1;
guint16 getter : 1;
guint16 constructor : 1;
guint16 wraps_vfunc : 1;
guint16 throws : 1;
guint16 index :10;
/* Note the bits above need to match CommonBlob
* and are thus exhausted, extend things using
* the reserved block below. */
guint32 name;
guint32 symbol;
guint32 signature;
guint16 is_static : 1;
guint16 reserved : 15;
guint16 reserved2 : 16;
} FunctionBlob;
typedef struct
{
guint16 blob_type; /* 2 */
guint16 deprecated : 1;
guint16 reserved :15;
guint32 name;
guint32 signature;
} CallbackBlob;
typedef struct
{
guint8 pointer :1;
guint8 reserved :2;
guint8 tag :5;
guint8 reserved2;
guint16 interface;
} InterfaceTypeBlob;
typedef struct
{
guint16 pointer :1;
guint16 reserved :2;
guint16 tag :5;
guint16 zero_terminated :1;
guint16 has_length :1;
guint16 has_size :1;
guint16 reserved2 :5;
union {
guint16 length;
guint16 size;
};
SimpleTypeBlob type;
} ArrayTypeBlob;
typedef struct
{
guint8 pointer :1;
guint8 reserved :2;
guint8 tag :5;
guint8 reserved2;
guint16 n_types;
SimpleTypeBlob type[];
} ParamTypeBlob;
typedef struct
{
guint8 pointer :1;
guint8 reserved :2;
guint8 tag :5;
guint8 reserved2;
guint16 n_domains;
guint16 domains[];
} ErrorTypeBlob;
typedef struct
{
guint16 blob_type; /* 10 */
guint16 deprecated : 1;
guint16 reserved :15;
guint32 name;
guint32 get_quark;
guint16 error_codes;
guint16 reserved2;
} ErrorDomainBlob;
typedef struct
{
guint32 deprecated : 1;
guint32 reserved :31;
guint32 name;
guint32 value;
} ValueBlob;
typedef struct
{
guint32 name;
guint8 readable :1;
guint8 writable :1;
guint8 reserved :6;
guint8 bits;
guint16 struct_offset;
SimpleTypeBlob type;
} FieldBlob;
typedef struct
{
guint16 blob_type;
guint16 deprecated : 1;
guint16 unregistered : 1;
guint16 reserved :14;
guint32 name;
guint32 gtype_name;
guint32 gtype_init;
} RegisteredTypeBlob;
typedef struct
{
guint16 blob_type;
guint16 deprecated : 1;
guint16 unregistered : 1;
guint16 alignment : 6;
guint16 reserved : 8;
guint32 name;
guint32 gtype_name;
guint32 gtype_init;
guint32 size;
guint16 n_fields;
guint16 n_methods;
#if 0
/* variable-length parts of the blob */
FieldBlob fields[];
FunctionBlob methods[];
#endif
} StructBlob;
typedef struct
{
guint16 blob_type;
guint16 deprecated : 1;
guint16 unregistered : 1;
guint16 discriminated : 1;
guint16 alignment : 6;
guint16 reserved : 7;
guint32 name;
guint32 gtype_name;
guint32 gtype_init;
guint32 size;
guint16 n_fields;
guint16 n_functions;
gint32 discriminator_offset;
SimpleTypeBlob discriminator_type;
#if 0
FieldBlob fields[];
FunctionBlob functions[];
ConstantBlob discriminator_values[]
#endif
} UnionBlob;
typedef struct
{
guint16 blob_type;
guint16 deprecated : 1;
guint16 unregistered : 1;
guint16 storage_type : 5;
guint16 reserved : 9;
guint32 name;
guint32 gtype_name;
guint32 gtype_init;
guint16 n_values;
guint16 reserved2;
ValueBlob values[];
} EnumBlob;
typedef struct
{
guint32 name;
guint32 deprecated : 1;
guint32 readable : 1;
guint32 writable : 1;
guint32 construct : 1;
guint32 construct_only : 1;
guint32 reserved :27;
SimpleTypeBlob type;
} PropertyBlob;
typedef struct
{
guint16 deprecated : 1;
guint16 run_first : 1;
guint16 run_last : 1;
guint16 run_cleanup : 1;
guint16 no_recurse : 1;
guint16 detailed : 1;
guint16 action : 1;
guint16 no_hooks : 1;
guint16 has_class_closure : 1;
guint16 true_stops_emit : 1;
guint16 reserved : 6;
guint16 class_closure;
guint32 name;
guint32 signature;
} SignalBlob;
typedef struct
{
guint32 name;
guint16 must_chain_up : 1;
guint16 must_be_implemented : 1;
guint16 must_not_be_implemented : 1;
guint16 class_closure : 1;
guint16 reserved :12;
guint16 signal;
guint16 struct_offset;
guint16 reserved2;
guint32 signature;
} VFuncBlob;
typedef struct
{
guint16 blob_type; /* 7 */
guint16 deprecated : 1;
guint16 abstract : 1;
guint16 reserved :14;
guint32 name;
guint32 gtype_name;
guint32 gtype_init;
guint16 parent;
guint16 n_interfaces;
guint16 n_fields;
guint16 n_properties;
guint16 n_methods;
guint16 n_signals;
guint16 n_vfuncs;
guint16 n_constants;
guint16 interfaces[];
#if 0
/* variable-length parts of the blob */
FieldBlob fields[];
PropertyBlob properties[];
FunctionBlob methods[];
SignalBlob signals[];
VFuncBlob vfuncs[];
ConstantBlob constants[];
#endif
} ObjectBlob;
typedef struct
{
guint16 blob_type;
guint16 deprecated : 1;
guint16 reserved :15;
guint32 name;
guint32 gtype_name;
guint32 gtype_init;
guint16 n_prerequisites;
guint16 n_properties;
guint16 n_methods;
guint16 n_signals;
guint16 n_vfuncs;
guint16 n_constants;
guint16 prerequisites[];
#if 0
/* variable-length parts of the blob */
PropertyBlob properties[];
FunctionBlob methods[];
SignalBlob signals[];
VFuncBlob vfuncs[];
ConstantBlob constants[];
#endif
} InterfaceBlob;
typedef struct
{
guint16 blob_type;
guint16 deprecated : 1;
guint16 reserved :15;
guint32 name;
SimpleTypeBlob type;
guint32 size;
guint32 offset;
} ConstantBlob;
typedef struct
{
guint32 offset;
guint32 name;
guint32 value;
} AnnotationBlob;
struct _GTypelib {
guchar *data;
gsize len;
gboolean owns_memory;
GMappedFile *mfile;
GList *modules;
};
DirEntry *g_typelib_get_dir_entry (GTypelib *typelib,
guint16 index);
void g_typelib_check_sanity (void);
#define g_typelib_get_string(typelib,offset) ((const gchar*)&(typelib->data)[(offset)])
typedef enum
{
G_TYPELIB_ERROR_INVALID,
G_TYPELIB_ERROR_INVALID_HEADER,
G_TYPELIB_ERROR_INVALID_DIRECTORY,
G_TYPELIB_ERROR_INVALID_ENTRY,
G_TYPELIB_ERROR_INVALID_BLOB
} GTypelibError;
#define G_TYPELIB_ERROR (g_typelib_error_quark ())
GQuark g_typelib_error_quark (void);
gboolean g_typelib_validate (GTypelib *typelib,
GError **error);
G_END_DECLS
#endif /* __G_TYPELIB_H__ */
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