glib/gtypelib.h
Owen Taylor 05d5158001 Add "storage type" to the typelib data for enums
In order to set and get enum and flag fields in structures, we need
to know the integral type that the enumeration is stored as. We are already
computing that at compile time in order to compute struct offsets, so the
easiest thing to do is to save that in the typelib.

* docs/typelib-format.txt girepository/girnode.[ch] girepository/giroffsets.c
girepository/gtypelib.h: Add 'storage_type' to the typelib format for EnumBlob
and compute and save it at compile time.

* girepository/girepository.h girepository/ginfo.c:
Add g_enum_info_get_storage_type().

* girepository/gfield.c: Implement reading and writing enum and flags fields
based on the storage type.

http://bugzilla.gnome.org/show_bug.cgi?id=561296

svn path=/trunk/; revision=944
2008-11-18 12:29:10 +00:00

540 lines
10 KiB
C

/* 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 reserved :24;
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;
guint32 name;
guint32 symbol;
guint32 signature;
} 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__ */