/js/src/jsversion.h
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/* 41 * JS configuration macros. 42 */ 43#ifndef JS_VERSION 44#define JS_VERSION 185 45#endif 46 47/* 48 * Compile-time JS version configuration. The JS version numbers lie on the 49 * number line like so: 50 * 51 * 1.0 1.1 1.2 1.3 1.4 ECMAv3 1.5 1.6 1.7 1.8 ECMAv5 52 * ^ ^ 53 * | | 54 * basis for ECMAv1 close to ECMAv2 55 * 56 * where ECMAv3 stands for ECMA-262 Edition 3, and ECMAv5 stands for Edition 5. 57 * See the runtime version enum JSVersion in jspubtd.h. Code in the engine can 58 * therefore count on version <= JSVERSION_1_4 to mean "before the Third 59 * Edition of ECMA-262" and version > JSVERSION_1_4 to mean "at or after the 60 * Third Edition". 61 * 62 * In the (likely?) event that SpiderMonkey grows to implement JavaScript 2.0, 63 * the version number to use would be near 200, or greater. 64 * 65 * The JS_VERSION_ECMA_3 version is the minimal configuration conforming to 66 * the ECMA-262 Edition 3 specification. Use it for minimal embeddings, where 67 * you're sure you don't need any of the extensions disabled in this version. 68 * In order to facilitate testing, JS_HAS_OBJ_PROTO_PROP is defined as part of 69 * the JS_VERSION_ECMA_3_TEST version. 70 * 71 * To keep things sane in the modern age, where we need exceptions in order to 72 * implement, e.g., iterators and generators, we are dropping support for all 73 * versions <= 1.4. 74 */ 75#define JS_VERSION_ECMA_3 148 76#define JS_VERSION_ECMA_3_TEST 149 77 78#if JS_VERSION == JS_VERSION_ECMA_3 || \ 79 JS_VERSION == JS_VERSION_ECMA_3_TEST 80 81#define JS_HAS_STR_HTML_HELPERS 0 /* has str.anchor, str.bold, etc. */ 82#define JS_HAS_PERL_SUBSTR 0 /* has str.substr */ 83#if JS_VERSION == JS_VERSION_ECMA_3_TEST 84#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */ 85#else 86#define JS_HAS_OBJ_PROTO_PROP 0 /* has o.__proto__ etc. */ 87#endif 88#define JS_HAS_OBJ_WATCHPOINT 0 /* has o.watch and o.unwatch */ 89#define JS_HAS_XDR 0 /* has XDR API and internal support */ 90#define JS_HAS_TOSOURCE 0 /* has Object/Array toSource method */ 91#define JS_HAS_CATCH_GUARD 0 /* has exception handling catch guard */ 92#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */ 93#define JS_HAS_UNEVAL 0 /* has uneval() top-level function */ 94#define JS_HAS_CONST 0 /* has JS2 const as alternative var */ 95#define JS_HAS_FUN_EXPR_STMT 0 /* has function expression statement */ 96#define JS_HAS_NO_SUCH_METHOD 0 /* has o.__noSuchMethod__ handler */ 97#define JS_HAS_XML_SUPPORT 0 /* has ECMAScript for XML support */ 98#define JS_HAS_GENERATORS 0 /* has yield in generator function */ 99#define JS_HAS_BLOCK_SCOPE 0 /* has block scope via let/arraycomp */ 100#define JS_HAS_DESTRUCTURING 0 /* has [a,b] = ... or {p:a,q:b} = ... */ 101#define JS_HAS_GENERATOR_EXPRS 0 /* has (expr for (lhs in iterable)) */ 102#define JS_HAS_EXPR_CLOSURES 0 /* has function (formals) listexpr */ 103 104#elif JS_VERSION < 150 105 106#error "unsupported JS_VERSION" 107 108#elif JS_VERSION == 150 109 110#define JS_HAS_STR_HTML_HELPERS 1 /* has str.anchor, str.bold, etc. */ 111#define JS_HAS_PERL_SUBSTR 1 /* has str.substr */ 112#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */ 113#define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */ 114#define JS_HAS_XDR 1 /* has XDR API and internal support */ 115#define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */ 116#define JS_HAS_CATCH_GUARD 1 /* has exception handling catch guard */ 117#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */ 118#define JS_HAS_UNEVAL 1 /* has uneval() top-level function */ 119#define JS_HAS_CONST 1 /* has JS2 const as alternative var */ 120#define JS_HAS_FUN_EXPR_STMT 1 /* has function expression statement */ 121#define JS_HAS_NO_SUCH_METHOD 1 /* has o.__noSuchMethod__ handler */ 122#define JS_HAS_XML_SUPPORT 0 /* has ECMAScript for XML support */ 123#define JS_HAS_GENERATORS 0 /* has yield in generator function */ 124#define JS_HAS_BLOCK_SCOPE 0 /* has block scope via let/arraycomp */ 125#define JS_HAS_DESTRUCTURING 0 /* has [a,b] = ... or {p:a,q:b} = ... */ 126#define JS_HAS_GENERATOR_EXPRS 0 /* has (expr for (lhs in iterable)) */ 127#define JS_HAS_EXPR_CLOSURES 0 /* has function (formals) listexpr */ 128 129#elif JS_VERSION == 160 130 131#define JS_HAS_STR_HTML_HELPERS 1 /* has str.anchor, str.bold, etc. */ 132#define JS_HAS_PERL_SUBSTR 1 /* has str.substr */ 133#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */ 134#define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */ 135#define JS_HAS_XDR 1 /* has XDR API and internal support */ 136#define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */ 137#define JS_HAS_CATCH_GUARD 1 /* has exception handling catch guard */ 138#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */ 139#define JS_HAS_UNEVAL 1 /* has uneval() top-level function */ 140#define JS_HAS_CONST 1 /* has JS2 const as alternative var */ 141#define JS_HAS_FUN_EXPR_STMT 1 /* has function expression statement */ 142#define JS_HAS_NO_SUCH_METHOD 1 /* has o.__noSuchMethod__ handler */ 143#define JS_HAS_XML_SUPPORT 1 /* has ECMAScript for XML support */ 144#define JS_HAS_GENERATORS 0 /* has yield in generator function */ 145#define JS_HAS_BLOCK_SCOPE 0 /* has block scope via let/arraycomp */ 146#define JS_HAS_DESTRUCTURING 0 /* has [a,b] = ... or {p:a,q:b} = ... */ 147#define JS_HAS_GENERATOR_EXPRS 0 /* has (expr for (lhs in iterable)) */ 148#define JS_HAS_EXPR_CLOSURES 0 /* has function (formals) listexpr */ 149 150#elif JS_VERSION == 170 151 152#define JS_HAS_STR_HTML_HELPERS 1 /* has str.anchor, str.bold, etc. */ 153#define JS_HAS_PERL_SUBSTR 1 /* has str.substr */ 154#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */ 155#define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */ 156#define JS_HAS_XDR 1 /* has XDR API and internal support */ 157#define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */ 158#define JS_HAS_CATCH_GUARD 1 /* has exception handling catch guard */ 159#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */ 160#define JS_HAS_UNEVAL 1 /* has uneval() top-level function */ 161#define JS_HAS_CONST 1 /* has JS2 const as alternative var */ 162#define JS_HAS_FUN_EXPR_STMT 1 /* has function expression statement */ 163#define JS_HAS_NO_SUCH_METHOD 1 /* has o.__noSuchMethod__ handler */ 164#define JS_HAS_XML_SUPPORT 1 /* has ECMAScript for XML support */ 165#define JS_HAS_GENERATORS 1 /* has yield in generator function */ 166#define JS_HAS_BLOCK_SCOPE 1 /* has block scope via let/arraycomp */ 167#define JS_HAS_DESTRUCTURING 1 /* has [a,b] = ... or {p:a,q:b} = ... */ 168#define JS_HAS_GENERATOR_EXPRS 0 /* has (expr for (lhs in iterable)) */ 169#define JS_HAS_EXPR_CLOSURES 0 /* has function (formals) listexpr */ 170 171#elif 180 <= JS_VERSION && JS_VERSION <= 185 172 173#define JS_HAS_STR_HTML_HELPERS 1 /* has str.anchor, str.bold, etc. */ 174#define JS_HAS_PERL_SUBSTR 1 /* has str.substr */ 175#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */ 176#define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */ 177#define JS_HAS_XDR 1 /* has XDR API and internal support */ 178#define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */ 179#define JS_HAS_CATCH_GUARD 1 /* has exception handling catch guard */ 180#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */ 181#define JS_HAS_UNEVAL 1 /* has uneval() top-level function */ 182#define JS_HAS_CONST 1 /* has JS2 const as alternative var */ 183#define JS_HAS_FUN_EXPR_STMT 1 /* has function expression statement */ 184#define JS_HAS_NO_SUCH_METHOD 1 /* has o.__noSuchMethod__ handler */ 185#define JS_HAS_XML_SUPPORT 1 /* has ECMAScript for XML support */ 186#define JS_HAS_GENERATORS 1 /* has yield in generator function */ 187#define JS_HAS_BLOCK_SCOPE 1 /* has block scope via let/arraycomp */ 188#define JS_HAS_DESTRUCTURING 2 /* has [a,b] = ... or {p:a,q:b} = ... */ 189#define JS_HAS_GENERATOR_EXPRS 1 /* has (expr for (lhs in iterable)) */ 190#define JS_HAS_EXPR_CLOSURES 1 /* has function (formals) listexpr */ 191 192#else 193 194#error "unknown JS_VERSION" 195 196#endif 197 198/* Support for JS_NewGlobalObject. */ 199#define JS_HAS_NEW_GLOBAL_OBJECT 1 200 201/* Support for JS_MakeSystemObject. */ 202#define JS_HAS_MAKE_SYSTEM_OBJECT 1 203 204/* Feature-test macro for evolving destructuring support. */ 205#define JS_HAS_DESTRUCTURING_SHORTHAND (JS_HAS_DESTRUCTURING == 2) 206 207/* 208 * Feature for Object.prototype.__{define,lookup}{G,S}etter__ legacy support; 209 * support likely to be made opt-in at some future time. 210 */ 211#define OLD_GETTER_SETTER_METHODS 1