/js/src/jsversion.h

http://github.com/zpao/v8monkey · C Header · 211 lines · 114 code · 21 blank · 76 comment · 9 complexity · b365f97aee13528760498ff0a4ea002c MD5 · raw file

  1. /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
  2. *
  3. * ***** BEGIN LICENSE BLOCK *****
  4. * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  5. *
  6. * The contents of this file are subject to the Mozilla Public License Version
  7. * 1.1 (the "License"); you may not use this file except in compliance with
  8. * the License. You may obtain a copy of the License at
  9. * http://www.mozilla.org/MPL/
  10. *
  11. * Software distributed under the License is distributed on an "AS IS" basis,
  12. * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  13. * for the specific language governing rights and limitations under the
  14. * License.
  15. *
  16. * The Original Code is Mozilla Communicator client code, released
  17. * March 31, 1998.
  18. *
  19. * The Initial Developer of the Original Code is
  20. * Netscape Communications Corporation.
  21. * Portions created by the Initial Developer are Copyright (C) 1998
  22. * the Initial Developer. All Rights Reserved.
  23. *
  24. * Contributor(s):
  25. *
  26. * Alternatively, the contents of this file may be used under the terms of
  27. * either of the GNU General Public License Version 2 or later (the "GPL"),
  28. * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  29. * in which case the provisions of the GPL or the LGPL are applicable instead
  30. * of those above. If you wish to allow use of your version of this file only
  31. * under the terms of either the GPL or the LGPL, and not to allow others to
  32. * use your version of this file under the terms of the MPL, indicate your
  33. * decision by deleting the provisions above and replace them with the notice
  34. * and other provisions required by the GPL or the LGPL. If you do not delete
  35. * the provisions above, a recipient may use your version of this file under
  36. * the terms of any one of the MPL, the GPL or the LGPL.
  37. *
  38. * ***** END LICENSE BLOCK ***** */
  39. /*
  40. * JS configuration macros.
  41. */
  42. #ifndef JS_VERSION
  43. #define JS_VERSION 185
  44. #endif
  45. /*
  46. * Compile-time JS version configuration. The JS version numbers lie on the
  47. * number line like so:
  48. *
  49. * 1.0 1.1 1.2 1.3 1.4 ECMAv3 1.5 1.6 1.7 1.8 ECMAv5
  50. * ^ ^
  51. * | |
  52. * basis for ECMAv1 close to ECMAv2
  53. *
  54. * where ECMAv3 stands for ECMA-262 Edition 3, and ECMAv5 stands for Edition 5.
  55. * See the runtime version enum JSVersion in jspubtd.h. Code in the engine can
  56. * therefore count on version <= JSVERSION_1_4 to mean "before the Third
  57. * Edition of ECMA-262" and version > JSVERSION_1_4 to mean "at or after the
  58. * Third Edition".
  59. *
  60. * In the (likely?) event that SpiderMonkey grows to implement JavaScript 2.0,
  61. * the version number to use would be near 200, or greater.
  62. *
  63. * The JS_VERSION_ECMA_3 version is the minimal configuration conforming to
  64. * the ECMA-262 Edition 3 specification. Use it for minimal embeddings, where
  65. * you're sure you don't need any of the extensions disabled in this version.
  66. * In order to facilitate testing, JS_HAS_OBJ_PROTO_PROP is defined as part of
  67. * the JS_VERSION_ECMA_3_TEST version.
  68. *
  69. * To keep things sane in the modern age, where we need exceptions in order to
  70. * implement, e.g., iterators and generators, we are dropping support for all
  71. * versions <= 1.4.
  72. */
  73. #define JS_VERSION_ECMA_3 148
  74. #define JS_VERSION_ECMA_3_TEST 149
  75. #if JS_VERSION == JS_VERSION_ECMA_3 || \
  76. JS_VERSION == JS_VERSION_ECMA_3_TEST
  77. #define JS_HAS_STR_HTML_HELPERS 0 /* has str.anchor, str.bold, etc. */
  78. #define JS_HAS_PERL_SUBSTR 0 /* has str.substr */
  79. #if JS_VERSION == JS_VERSION_ECMA_3_TEST
  80. #define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
  81. #else
  82. #define JS_HAS_OBJ_PROTO_PROP 0 /* has o.__proto__ etc. */
  83. #endif
  84. #define JS_HAS_OBJ_WATCHPOINT 0 /* has o.watch and o.unwatch */
  85. #define JS_HAS_XDR 0 /* has XDR API and internal support */
  86. #define JS_HAS_TOSOURCE 0 /* has Object/Array toSource method */
  87. #define JS_HAS_CATCH_GUARD 0 /* has exception handling catch guard */
  88. #define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
  89. #define JS_HAS_UNEVAL 0 /* has uneval() top-level function */
  90. #define JS_HAS_CONST 0 /* has JS2 const as alternative var */
  91. #define JS_HAS_FUN_EXPR_STMT 0 /* has function expression statement */
  92. #define JS_HAS_NO_SUCH_METHOD 0 /* has o.__noSuchMethod__ handler */
  93. #define JS_HAS_XML_SUPPORT 0 /* has ECMAScript for XML support */
  94. #define JS_HAS_GENERATORS 0 /* has yield in generator function */
  95. #define JS_HAS_BLOCK_SCOPE 0 /* has block scope via let/arraycomp */
  96. #define JS_HAS_DESTRUCTURING 0 /* has [a,b] = ... or {p:a,q:b} = ... */
  97. #define JS_HAS_GENERATOR_EXPRS 0 /* has (expr for (lhs in iterable)) */
  98. #define JS_HAS_EXPR_CLOSURES 0 /* has function (formals) listexpr */
  99. #elif JS_VERSION < 150
  100. #error "unsupported JS_VERSION"
  101. #elif JS_VERSION == 150
  102. #define JS_HAS_STR_HTML_HELPERS 1 /* has str.anchor, str.bold, etc. */
  103. #define JS_HAS_PERL_SUBSTR 1 /* has str.substr */
  104. #define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
  105. #define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */
  106. #define JS_HAS_XDR 1 /* has XDR API and internal support */
  107. #define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */
  108. #define JS_HAS_CATCH_GUARD 1 /* has exception handling catch guard */
  109. #define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
  110. #define JS_HAS_UNEVAL 1 /* has uneval() top-level function */
  111. #define JS_HAS_CONST 1 /* has JS2 const as alternative var */
  112. #define JS_HAS_FUN_EXPR_STMT 1 /* has function expression statement */
  113. #define JS_HAS_NO_SUCH_METHOD 1 /* has o.__noSuchMethod__ handler */
  114. #define JS_HAS_XML_SUPPORT 0 /* has ECMAScript for XML support */
  115. #define JS_HAS_GENERATORS 0 /* has yield in generator function */
  116. #define JS_HAS_BLOCK_SCOPE 0 /* has block scope via let/arraycomp */
  117. #define JS_HAS_DESTRUCTURING 0 /* has [a,b] = ... or {p:a,q:b} = ... */
  118. #define JS_HAS_GENERATOR_EXPRS 0 /* has (expr for (lhs in iterable)) */
  119. #define JS_HAS_EXPR_CLOSURES 0 /* has function (formals) listexpr */
  120. #elif JS_VERSION == 160
  121. #define JS_HAS_STR_HTML_HELPERS 1 /* has str.anchor, str.bold, etc. */
  122. #define JS_HAS_PERL_SUBSTR 1 /* has str.substr */
  123. #define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
  124. #define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */
  125. #define JS_HAS_XDR 1 /* has XDR API and internal support */
  126. #define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */
  127. #define JS_HAS_CATCH_GUARD 1 /* has exception handling catch guard */
  128. #define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
  129. #define JS_HAS_UNEVAL 1 /* has uneval() top-level function */
  130. #define JS_HAS_CONST 1 /* has JS2 const as alternative var */
  131. #define JS_HAS_FUN_EXPR_STMT 1 /* has function expression statement */
  132. #define JS_HAS_NO_SUCH_METHOD 1 /* has o.__noSuchMethod__ handler */
  133. #define JS_HAS_XML_SUPPORT 1 /* has ECMAScript for XML support */
  134. #define JS_HAS_GENERATORS 0 /* has yield in generator function */
  135. #define JS_HAS_BLOCK_SCOPE 0 /* has block scope via let/arraycomp */
  136. #define JS_HAS_DESTRUCTURING 0 /* has [a,b] = ... or {p:a,q:b} = ... */
  137. #define JS_HAS_GENERATOR_EXPRS 0 /* has (expr for (lhs in iterable)) */
  138. #define JS_HAS_EXPR_CLOSURES 0 /* has function (formals) listexpr */
  139. #elif JS_VERSION == 170
  140. #define JS_HAS_STR_HTML_HELPERS 1 /* has str.anchor, str.bold, etc. */
  141. #define JS_HAS_PERL_SUBSTR 1 /* has str.substr */
  142. #define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
  143. #define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */
  144. #define JS_HAS_XDR 1 /* has XDR API and internal support */
  145. #define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */
  146. #define JS_HAS_CATCH_GUARD 1 /* has exception handling catch guard */
  147. #define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
  148. #define JS_HAS_UNEVAL 1 /* has uneval() top-level function */
  149. #define JS_HAS_CONST 1 /* has JS2 const as alternative var */
  150. #define JS_HAS_FUN_EXPR_STMT 1 /* has function expression statement */
  151. #define JS_HAS_NO_SUCH_METHOD 1 /* has o.__noSuchMethod__ handler */
  152. #define JS_HAS_XML_SUPPORT 1 /* has ECMAScript for XML support */
  153. #define JS_HAS_GENERATORS 1 /* has yield in generator function */
  154. #define JS_HAS_BLOCK_SCOPE 1 /* has block scope via let/arraycomp */
  155. #define JS_HAS_DESTRUCTURING 1 /* has [a,b] = ... or {p:a,q:b} = ... */
  156. #define JS_HAS_GENERATOR_EXPRS 0 /* has (expr for (lhs in iterable)) */
  157. #define JS_HAS_EXPR_CLOSURES 0 /* has function (formals) listexpr */
  158. #elif 180 <= JS_VERSION && JS_VERSION <= 185
  159. #define JS_HAS_STR_HTML_HELPERS 1 /* has str.anchor, str.bold, etc. */
  160. #define JS_HAS_PERL_SUBSTR 1 /* has str.substr */
  161. #define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
  162. #define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */
  163. #define JS_HAS_XDR 1 /* has XDR API and internal support */
  164. #define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */
  165. #define JS_HAS_CATCH_GUARD 1 /* has exception handling catch guard */
  166. #define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
  167. #define JS_HAS_UNEVAL 1 /* has uneval() top-level function */
  168. #define JS_HAS_CONST 1 /* has JS2 const as alternative var */
  169. #define JS_HAS_FUN_EXPR_STMT 1 /* has function expression statement */
  170. #define JS_HAS_NO_SUCH_METHOD 1 /* has o.__noSuchMethod__ handler */
  171. #define JS_HAS_XML_SUPPORT 1 /* has ECMAScript for XML support */
  172. #define JS_HAS_GENERATORS 1 /* has yield in generator function */
  173. #define JS_HAS_BLOCK_SCOPE 1 /* has block scope via let/arraycomp */
  174. #define JS_HAS_DESTRUCTURING 2 /* has [a,b] = ... or {p:a,q:b} = ... */
  175. #define JS_HAS_GENERATOR_EXPRS 1 /* has (expr for (lhs in iterable)) */
  176. #define JS_HAS_EXPR_CLOSURES 1 /* has function (formals) listexpr */
  177. #else
  178. #error "unknown JS_VERSION"
  179. #endif
  180. /* Support for JS_NewGlobalObject. */
  181. #define JS_HAS_NEW_GLOBAL_OBJECT 1
  182. /* Support for JS_MakeSystemObject. */
  183. #define JS_HAS_MAKE_SYSTEM_OBJECT 1
  184. /* Feature-test macro for evolving destructuring support. */
  185. #define JS_HAS_DESTRUCTURING_SHORTHAND (JS_HAS_DESTRUCTURING == 2)
  186. /*
  187. * Feature for Object.prototype.__{define,lookup}{G,S}etter__ legacy support;
  188. * support likely to be made opt-in at some future time.
  189. */
  190. #define OLD_GETTER_SETTER_METHODS 1