glib/gitypes.h

/* GObject introspection: types
 *
 * 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.
 */

#ifndef __GITYPES_H__
#define __GITYPES_H__

#if !defined (__GIREPOSITORY_H_INSIDE__) && !defined (GI_COMPILATION)
#error "Only <girepository.h> can be included directly."
#endif

G_BEGIN_DECLS

typedef struct _GIBaseInfoStub GIBaseInfo;

/**
 * GICallableInfo:
 *
 * Represents a callable, either #GIFunctionInfo, #GICallbackInfo or
 * #GIVFuncInfo.
 */
typedef GIBaseInfo GICallableInfo;

/**
 * GIFunctionInfo:
 *
 * Represents a function, eg arguments and return value.
 */
typedef GIBaseInfo GIFunctionInfo;

/**
 * GICallbackInfo:
 *
 * Represents a callback, eg arguments and return value.
 */
typedef GIBaseInfo GICallbackInfo;

/**
 * GIRegisteredTypeInfo:
 *
 * Represent a registered type.
 */
typedef GIBaseInfo GIRegisteredTypeInfo;

/**
 * GIStructInfo:
 *
 * Represents a struct.
 */
typedef GIBaseInfo GIStructInfo;

/**
 * GIUnionInfo:
 *
 * Represents a union.
 */
typedef GIBaseInfo GIUnionInfo;

/**
 * GIEnumInfo:
 *
 * Represents an enum or a flag.
 */
typedef GIBaseInfo GIEnumInfo;

/**
 * GIObjectInfo:
 *
 * Represents an object.
 */
typedef GIBaseInfo GIObjectInfo;

/**
 * GIInterfaceInfo:
 *
 * Represents an interface.
 */
typedef GIBaseInfo GIInterfaceInfo;

/**
 * GIConstantInfo:
 *
 * Represents a constant.
 */
typedef GIBaseInfo GIConstantInfo;

/**
 * GIValueInfo:
 *
 * Represents a enum value of a #GIEnumInfo.
 */
typedef GIBaseInfo GIValueInfo;

/**
 * GISignalInfo:
 *
 * Represents a signal.
 */
typedef GIBaseInfo GISignalInfo;

/**
 * GIVFuncInfo
 *
 * Represents a virtual function.
 */
typedef GIBaseInfo GIVFuncInfo;

/**
 * GIPropertyInfo:
 *
 * Represents a property of a #GIObjectInfo or a #GIInterfaceInfo.
 */
typedef GIBaseInfo GIPropertyInfo;

/**
 * GIFieldInfo:
 *
 * Represents a field of a #GIStructInfo or a #GIUnionInfo.
 */
typedef GIBaseInfo GIFieldInfo;

/**
 * GIArgInfo:
 *
 * Represents an argument.
 */
typedef GIBaseInfo GIArgInfo;

/**
 * GITypeInfo:
 *
 * Represents type information, direction, transfer etc.
 */
typedef GIBaseInfo GITypeInfo;

/**
 * GIErrorDomainInfo:
 *
 * Represents a #GError error domain.
 */
typedef GIBaseInfo GIErrorDomainInfo;

/**
 * GIUnresolvedInfo:
 *
 * Represents a unresolved type in a typelib.
 */
typedef struct _GIUnresolvedInfo GIUnresolvedInfo;

typedef union
{
  gboolean v_boolean;
  gint8    v_int8;
  guint8   v_uint8;
  gint16   v_int16;
  guint16  v_uint16;
  gint32   v_int32;
  guint32  v_uint32;
  gint64   v_int64;
  guint64  v_uint64;
  gfloat   v_float;
  gdouble  v_double;
  gshort   v_short;
  gushort  v_ushort;
  gint     v_int;
  guint    v_uint;
  glong    v_long;
  gulong   v_ulong;
  gssize   v_ssize;
  gsize    v_size;
  gchar *  v_string;
  gpointer v_pointer;
} GArgument;

/* Types of objects registered in the repository */

/**
 * GIInfoType:
 * @GI_INFO_TYPE_INVALID: invalid type
 * @GI_INFO_TYPE_FUNCTION: function, see #GIFunctionInfo
 * @GI_INFO_TYPE_CALLBACK: callback, see #GIFunctionInfo
 * @GI_INFO_TYPE_STRUCT: struct, see #GIStructInfo
 * @GI_INFO_TYPE_BOXED: boxed, see #GIStructInfo or #GIUnionInfo
 * @GI_INFO_TYPE_ENUM: enum, see #GIEnumInfo
 * @GI_INFO_TYPE_FLAGS: flags, see #GIEnumInfo
 * @GI_INFO_TYPE_OBJECT: object, see #GIObjectInfo
 * @GI_INFO_TYPE_INTERFACE: interface, see #GIInterfaceInfo
 * @GI_INFO_TYPE_CONSTANT: contant, see #GIConstantInfo
 * @GI_INFO_TYPE_ERROR_DOMAIN: error domain for a #GError, see #GIErrorDomainInfo
 * @GI_INFO_TYPE_UNION: union, see #GIUnionInfo
 * @GI_INFO_TYPE_VALUE: enum value, see #GIValueInfo
 * @GI_INFO_TYPE_SIGNAL: signal, see #GISignalInfo
 * @GI_INFO_TYPE_VFUNC: virtual function, see #GIVFuncInfo
 * @GI_INFO_TYPE_PROPERTY: GObject property, see #GIPropertyInfo
 * @GI_INFO_TYPE_FIELD: struct or union field, see #GIFieldInfo
 * @GI_INFO_TYPE_ARG: argument of a function or callback, see #GIArgInfo
 * @GI_INFO_TYPE_TYPE: type information, see #GITypeInfo
 * @GI_INFO_TYPE_UNRESOLVED: unresolved type, a type which is not present in
 * the typelib, or any of its dependencies.
 *
 * The type of a GIBaseInfo struct.
 */
typedef enum
{
  GI_INFO_TYPE_INVALID,
  GI_INFO_TYPE_FUNCTION,
  GI_INFO_TYPE_CALLBACK,
  GI_INFO_TYPE_STRUCT,
  GI_INFO_TYPE_BOXED,
  GI_INFO_TYPE_ENUM,         /*  5 */
  GI_INFO_TYPE_FLAGS,
  GI_INFO_TYPE_OBJECT,
  GI_INFO_TYPE_INTERFACE,
  GI_INFO_TYPE_CONSTANT,
  GI_INFO_TYPE_ERROR_DOMAIN, /* 10 */
  GI_INFO_TYPE_UNION,
  GI_INFO_TYPE_VALUE,
  GI_INFO_TYPE_SIGNAL,
  GI_INFO_TYPE_VFUNC,
  GI_INFO_TYPE_PROPERTY,     /* 15 */
  GI_INFO_TYPE_FIELD,
  GI_INFO_TYPE_ARG,
  GI_INFO_TYPE_TYPE,
  GI_INFO_TYPE_UNRESOLVED
} GIInfoType;

/**
 * GITransfer:
 * @GI_TRANSFER_NOTHING: transfer nothing to the caller
 * @GI_TRANSFER_CONTAINER: transfer the container (eg list, array,
 * hashtable), but no the contents to the caller.
 * @GI_TRANSFER_EVERYTHING: transfer everything to the caller.
 *
 * Represent the transfer ownership information of a #GICallableInfo or
 * a #GIArgInfo.
 */
typedef enum {
  GI_TRANSFER_NOTHING,
  GI_TRANSFER_CONTAINER,
  GI_TRANSFER_EVERYTHING
} GITransfer;

/**
 * GIDirection:
 * @GI_DIRECTION_IN: in argument.
 * @GI_DIRECTION_OUT: out argument.
 * @GI_DIRECTION_INOUT: in and out argument.
 *
 * The direction of a #GIArgInfo.
 */
typedef enum  {
  GI_DIRECTION_IN,
  GI_DIRECTION_OUT,
  GI_DIRECTION_INOUT
} GIDirection;

/**
 * GIScopeType:
 * @GI_SCOPE_TYPE_INVALID: The argument is not of callback type.
 * @GI_SCOPE_TYPE_CALL: The callback and associated user_data is only
 * used during the call to this function.
 * @GI_SCOPE_TYPE_ASYNC: The callback and associated user_data is
 * only used until the callback is invoked, and the callback.
 * is invoked always exactly once.
 * @GI_SCOPE_TYPE_NOTIFIED: The callback and and associated
 * user_data is used until the caller is notfied via the destroy_notify.
 *
 * Scope type of a #GIArgInfo representing callback, determines how the
 * callback is invoked and is used to decided when the invoke structs
 * can be freed.
 */
typedef enum {
  GI_SCOPE_TYPE_INVALID,
  GI_SCOPE_TYPE_CALL,
  GI_SCOPE_TYPE_ASYNC,
  GI_SCOPE_TYPE_NOTIFIED
} GIScopeType;

G_END_DECLS

/**
 * GITypeTag:
 * @GI_TYPE_TAG_VOID: void
 * @GI_TYPE_TAG_BOOLEAN: boolean
 * @GI_TYPE_TAG_INT8: 8-bit signed integer
 * @GI_TYPE_TAG_UINT8: 8-bit unsigned integer
 * @GI_TYPE_TAG_INT16: 16-bit signed integer
 * @GI_TYPE_TAG_UINT16: 16-bit unsigned integer
 * @GI_TYPE_TAG_INT32: 32-bit signed integer
 * @GI_TYPE_TAG_UINT32: 32-bit unsigned integer
 * @GI_TYPE_TAG_INT64: 64-bit signed integer
 * @GI_TYPE_TAG_UINT64: 64-bit unsigned integer
 * @GI_TYPE_TAG_SHORT: signed short
 * @GI_TYPE_TAG_USHORT: unsigned hosrt
 * @GI_TYPE_TAG_INT: signed integer
 * @GI_TYPE_TAG_UINT: unsigned integer
 * @GI_TYPE_TAG_LONG: signed long
 * @GI_TYPE_TAG_ULONG: unsigned long
 * @GI_TYPE_TAG_SSIZE: ssize_t
 * @GI_TYPE_TAG_SIZE: size_t
 * @GI_TYPE_TAG_FLOAT: float
 * @GI_TYPE_TAG_DOUBLE: double floating point
 * @GI_TYPE_TAG_TIME_T: time_t
 * @GI_TYPE_TAG_GTYPE: a #GType
 * @GI_TYPE_TAG_UTF8: a UTF-8 encoded string
 * @GI_TYPE_TAG_FILENAME: a filename, encoded in the same encoding
 * as the native filesystem is using.
 * @GI_TYPE_TAG_ARRAY: an array
 * @GI_TYPE_TAG_INTERFACE: an extended interface object
 * @GI_TYPE_TAG_GLIST: a #GList
 * @GI_TYPE_TAG_GSLIST: a #GSList
 * @GI_TYPE_TAG_GHASH: a #GHashTable
 * @GI_TYPE_TAG_ERROR: a #GError
 *
 * The type tag of a #GITypeInfo.
 */
typedef enum {
  /* Basic types */
  GI_TYPE_TAG_VOID      =  0,
  GI_TYPE_TAG_BOOLEAN   =  1,
  GI_TYPE_TAG_INT8      =  2,
  GI_TYPE_TAG_UINT8     =  3,
  GI_TYPE_TAG_INT16     =  4,
  GI_TYPE_TAG_UINT16    =  5,
  GI_TYPE_TAG_INT32     =  6,
  GI_TYPE_TAG_UINT32    =  7,
  GI_TYPE_TAG_INT64     =  8,
  GI_TYPE_TAG_UINT64    =  9,
  GI_TYPE_TAG_SHORT     = 10,
  GI_TYPE_TAG_USHORT    = 11,
  GI_TYPE_TAG_INT       = 12,
  GI_TYPE_TAG_UINT      = 13,
  GI_TYPE_TAG_LONG      = 14,
  GI_TYPE_TAG_ULONG     = 15,
  GI_TYPE_TAG_SSIZE     = 16,
  GI_TYPE_TAG_SIZE      = 17,
  GI_TYPE_TAG_FLOAT     = 18,
  GI_TYPE_TAG_DOUBLE    = 19,
  GI_TYPE_TAG_TIME_T    = 20,
  GI_TYPE_TAG_GTYPE     = 21,
  GI_TYPE_TAG_UTF8      = 22,
  GI_TYPE_TAG_FILENAME  = 23,
  /* Non-basic types */
  GI_TYPE_TAG_ARRAY     = 24,
  GI_TYPE_TAG_INTERFACE = 25,
  GI_TYPE_TAG_GLIST     = 26,
  GI_TYPE_TAG_GSLIST    = 27,
  GI_TYPE_TAG_GHASH     = 28,
  GI_TYPE_TAG_ERROR     = 29
  /* Note - there is only room currently for 32 tags.
   * See docs/typelib-format.txt SimpleTypeBlob definition */
} GITypeTag;

/**
 * GIArrayType:
 * @GI_ARRAY_TYPE_C: a C array, char[] for instance
 * @GI_ARRAY_TYPE_ARRAY: a @GArray array
 * @GI_ARRAY_TYPE_PTR_ARRAY: a #GPtrArray array
 * @GI_ARRAY_TYPE_BYTE_ARRAY: a #GByteArray array
 *
 * The type of array in a #GITypeInfo.
 */
typedef enum {
  GI_ARRAY_TYPE_C,
  GI_ARRAY_TYPE_ARRAY,
  GI_ARRAY_TYPE_PTR_ARRAY,
  GI_ARRAY_TYPE_BYTE_ARRAY
} GIArrayType;

/**
 * GIFieldInfoFlags:
 * @GI_FIELD_IS_READABLE: field is readable.
 * @GI_FIELD_IS_WRITABLE: field is writable.
 *
 * Flags for a #GIFieldInfo.
 */

typedef enum
{
  GI_FIELD_IS_READABLE = 1 << 0,
  GI_FIELD_IS_WRITABLE = 1 << 1
} GIFieldInfoFlags;

/**
 * GIVFuncInfoFlags:
 * @GI_VFUNC_MUST_CHAIN_UP: chains up to the parent type
 * @GI_VFUNC_MUST_OVERRIDE: overrides
 * @GI_VFUNC_MUST_NOT_OVERRIDE: does not override
 *
 * Flags of a #GIVFuncInfo struct.
 */
typedef enum
{
  GI_VFUNC_MUST_CHAIN_UP     = 1 << 0,
  GI_VFUNC_MUST_OVERRIDE     = 1 << 1,
  GI_VFUNC_MUST_NOT_OVERRIDE = 1 << 2
} GIVFuncInfoFlags;

/**
 * GIFunctionInfoFlags:
 * @GI_FUNCTION_IS_METHOD: is a method.
 * @GI_FUNCTION_IS_CONSTRUCTOR: is a constructor.
 * @GI_FUNCTION_IS_GETTER: is a getter of a #GIPropertyInfo.
 * @GI_FUNCTION_IS_SETTER: is a setter of a #GIPropertyInfo.
 * @GI_FUNCTION_WRAPS_VFUNC: represents a virtual function.
 * @GI_FUNCTION_THROWS: the function may throw an error.
 *
 * Flags for a #GIFunctionInfo struct.
 */
typedef enum
{
  GI_FUNCTION_IS_METHOD      = 1 << 0,
  GI_FUNCTION_IS_CONSTRUCTOR = 1 << 1,
  GI_FUNCTION_IS_GETTER      = 1 << 2,
  GI_FUNCTION_IS_SETTER      = 1 << 3,
  GI_FUNCTION_WRAPS_VFUNC    = 1 << 4,
  GI_FUNCTION_THROWS         = 1 << 5
} GIFunctionInfoFlags;

#endif  /* __GITYPES_H__ */