Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Octocat-spinner-32-eaf2f5

Cannot retrieve contributors at this time

file 271 lines (238 sloc) 8.14 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270
/*
* Copyright (c) 2008-2009, Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef __BS_H_
#define __BS_H_

#if defined(__cplusplus)
extern "C" {
#endif

#include <CoreFoundation/CoreFoundation.h>
#include <objc/runtime.h>

/* Attribute and element representations.
* See BridgeSupport(5) for more information.
*/

typedef enum {
  BS_CARRAY_ARG_UNDEFINED = 0,
  BS_CARRAY_ARG_LENGTH_IN_ARG,
  BS_CARRAY_ARG_FIXED_LENGTH,
  BS_CARRAY_ARG_VARIABLE_LENGTH,
  BS_CARRAY_ARG_DELIMITED_BY_NULL
} bs_carray_arg_type_t;

typedef enum {
  BS_TYPE_MODIFIER_UNDEFINED = 0,
  BS_TYPE_MODIFIER_IN,
  BS_TYPE_MODIFIER_OUT,
  BS_TYPE_MODIFIER_INOUT
} bs_type_modifier_t;

typedef struct {
  char *name;
  char *type;
} bs_element_struct_field_t;

typedef struct {
  char *name;
  char *type;
  bs_element_struct_field_t *fields;
  unsigned fields_count;
  bool opaque;
} bs_element_struct_t;

typedef struct {
  char *name;
  char *type;
  char *tollfree;
  CFTypeID type_id; /* 0 if unknown */
} bs_element_cftype_t;

typedef struct {
  char *name;
  char *type;
} bs_element_opaque_t;

typedef struct {
  char *name;
  char *type;
  bool magic_cookie;
  bool ignore;
  char *suggestion;
} bs_element_constant_t;

typedef struct {
  char *name;
  char *value;
  bool nsstring;
} bs_element_string_constant_t;

typedef struct {
  char *name;
  char *value;
  bool ignore;
  char *suggestion;
} bs_element_enum_t;

struct __bs_element_arg;
struct __bs_element_retval;
typedef struct __bs_element_arg bs_element_arg_t;
typedef struct __bs_element_retval bs_element_retval_t;

typedef struct {
  bs_element_arg_t *args;
  unsigned args_count;
  bs_element_retval_t *retval;
} bs_element_function_pointer_t;

struct __bs_element_arg {
  int index; /* if -1, not used */
  char *type;
  bs_type_modifier_t type_modifier;
  bs_carray_arg_type_t carray_type;
  bs_element_function_pointer_t *function_pointer; /* can be NULL */
  int carray_type_value;
  bool null_accepted;
  bool printf_format;
  char *sel_of_type;
};

struct __bs_element_retval {
  char *type;
  bs_carray_arg_type_t carray_type;
  bs_element_function_pointer_t *function_pointer; /* can be NULL */
  int carray_type_value;
  bool already_retained;
};

typedef struct {
  char *name;
  bs_element_arg_t *args;
  unsigned args_count;
  bs_element_retval_t *retval;
  bool variadic;
} bs_element_function_t;

typedef struct {
  char *name;
  char *original;
} bs_element_function_alias_t;

typedef struct {
  SEL name;
  bs_element_arg_t *args;
  unsigned args_count;
  bs_element_retval_t *retval;
  bool class_method;
  bool variadic;
  bool ignore;
  char *suggestion;
} bs_element_method_t;

typedef struct {
  char *name;
  bs_element_method_t *class_methods;
  unsigned class_methods_count;
  bs_element_method_t *instance_methods;
  unsigned instance_methods_count;
} bs_element_class_t;

typedef struct {
  SEL name;
  char *type;
  char *protocol_name;
  bool class_method;
} bs_element_informal_protocol_method_t;

typedef enum {
  BS_ELEMENT_STRUCT, /* bs_element_struct_t */
  BS_ELEMENT_CFTYPE, /* bs_element_cftype_t */
  BS_ELEMENT_OPAQUE, /* bs_element_opaque_t */
  BS_ELEMENT_CONSTANT, /* bs_element_constant_t */
  BS_ELEMENT_STRING_CONSTANT, /* bs_element_string_constant_t */
  BS_ELEMENT_ENUM, /* bs_element_enum_t */
  BS_ELEMENT_FUNCTION, /* bs_element_function_t */
  BS_ELEMENT_FUNCTION_ALIAS, /* bs_element_function_alias_t */
  BS_ELEMENT_CLASS, /* bs_element_class_t */
  BS_ELEMENT_INFORMAL_PROTOCOL_METHOD
                                /* bs_element_informal_protocol_method_t */
} bs_element_type_t;

/* bs_find_path()
*
* Finds the path of a framework's bridge support file, by looking at the
* following locations, in order of priority:
* - inside the main executable bundle (if any), in the Resources/BridgeSupport directory ;
* - inside the framework bundle, in the Resources/BridgeSupport directory ;
* - in ~/Library/BridgeSupport ;
* - in /Library/BridgeSupport ;
* - in /System/Library/BridgeSupport.
* Returns true on success, false otherwise.
*
* framework_path: the full path of the framework.
* path: a pointer to a pre-allocated string that will contain the bridge
* support path on success.
* path_len: the size of the path argument.
*/
bool bs_find_path(const char *framework_path, char *path, const size_t path_len);

/* bs_parser_new()
*
* Creates and returns a parser object, required for bs_parser_parse().
* Use bs_parser_free() when you're done.
*/
typedef struct _bs_parser bs_parser_t;
bs_parser_t *bs_parser_new(void);

/* bs_parser_free()
*
* Frees a previously-created parser object.
*/
void bs_parser_free(bs_parser_t *parser);

typedef void (*bs_parse_callback_t)
  (bs_parser_t *parser, const char *path, bs_element_type_t type, void *value,
   void *context);

typedef enum {
  /* Default option: parse bridge support files. */
  BS_PARSE_OPTIONS_DEFAULT = 0,
  /* Parse bridge support files and dlopen(3) the dylib files, if any. */
  BS_PARSE_OPTIONS_LOAD_DYLIBS
} bs_parse_options_t;

/* bs_parse()
*
* Parses a given bridge support file, calling back a given function pointer
* for every parsed element. You are responsible to free every element passed
* to the callback function, using bs_element_free().
* Returns true on success, otherwise false.
*
* parser: the parser object.
* path: the full path of the bridge support file to parse.
* framework_path: the full path of the framework this bridge support file
* comes from. This is only required if options is BS_PARSE_OPTIONS_LOAD_DYLIBS
* in order to locate the dylib files. Pass NULL if you are passing the
* default BS_PARSE_OPTIONS_DEFAULT option.
* options: parsing options.
* callback: a callback function pointer.
* context: a contextual data pointer that will be passed to the callback
* function.
* error: in case this function returns false, this variable is set to a newly
* allocated error message. You are responsible to free it. Pass NULL if you
* don't need it.
*/
bool bs_parser_parse(bs_parser_t *parser, const char *path,
  const char *framework_path, bs_parse_options_t options,
  bs_parse_callback_t callback, void *context, char **error);

/* bs_element_free()
*
* Frees a bridge support element that was returned by bs_parse() through the
* callback method.
*
* type: the type of the bridge support element.
* value: a pointer to the bridge support element.
*/
void bs_element_free(bs_element_type_t type, void *value);

#if defined(__cplusplus)
}
#endif

#endif /* __BS_H_ */
Something went wrong with that request. Please try again.