js/src/jsversion.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
   2  * vim: set ts=8 sts=4 et sw=4 tw=99:
   3  * This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef jsversion_h
   8 #define jsversion_h
   9
  10 /*
  11  * JS Capability Macros.
  12  */
  13 #define JS_HAS_STR_HTML_HELPERS 1       /* has str.anchor, str.bold, etc. */
  14 #define JS_HAS_OBJ_PROTO_PROP   1       /* has o.__proto__ etc. */
  15 #define JS_HAS_OBJ_WATCHPOINT   1       /* has o.watch and o.unwatch */
  16 #define JS_HAS_TOSOURCE         1       /* has Object/Array toSource method */
  17 #define JS_HAS_CATCH_GUARD      1       /* has exception handling catch guard */
  18 #define JS_HAS_UNEVAL           1       /* has uneval() top-level function */
  19 #define JS_HAS_CONST            1       /* has JS2 const as alternative var */
  20 #define JS_HAS_FUN_EXPR_STMT    1       /* has function expression statement */
  21 #define JS_HAS_NO_SUCH_METHOD   1       /* has o.__noSuchMethod__ handler */
  22 #define JS_HAS_FOR_EACH_IN      1       /* has for each (lhs in iterable) */
  23 #define JS_HAS_GENERATORS       1       /* has yield in generator function */
  24 #define JS_HAS_BLOCK_SCOPE      1       /* has block scope via let/arraycomp */
  25 #define JS_HAS_DESTRUCTURING    2       /* has [a,b] = ... or {p:a,q:b} = ... */
  26 #define JS_HAS_GENERATOR_EXPRS  1       /* has (expr for (lhs in iterable)) */
  27 #define JS_HAS_EXPR_CLOSURES    1       /* has function (formals) listexpr */
  28
  29 /* Support for JS_NewGlobalObject. */
  30 #define JS_HAS_NEW_GLOBAL_OBJECT        1
  31
  32 /* Support for JS_MakeSystemObject. */
  33 #define JS_HAS_MAKE_SYSTEM_OBJECT       1
  34
  35 /* Feature-test macro for evolving destructuring support. */
  36 #define JS_HAS_DESTRUCTURING_SHORTHAND  (JS_HAS_DESTRUCTURING == 2)
  37
  38 /*
  39  * Feature for Object.prototype.__{define,lookup}{G,S}etter__ legacy support;
  40  * support likely to be made opt-in at some future time.
  41  */
  42 #define JS_OLD_GETTER_SETTER_METHODS    1
  43
  44 /* Support for Symbols - Nightly-only for now. */
  45 #ifdef NIGHTLY_BUILD
  46 #define JS_HAS_SYMBOLS 1
  47 #endif
  48
  49 #endif /* jsversion_h */