jsversion.h
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*
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
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* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
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* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
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*
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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/*
* JS configuration macros.
*/
#ifndef JS_VERSION
#define JS_VERSION 185
#endif
/*
* Compile-time JS version configuration. The JS version numbers lie on the
* number line like so:
*
* 1.0 1.1 1.2 1.3 1.4 ECMAv3 1.5 1.6 1.7 1.8 ECMAv5
* ^ ^
* | |
* basis for ECMAv1 close to ECMAv2
*
* where ECMAv3 stands for ECMA-262 Edition 3, and ECMAv5 stands for Edition 5.
* See the runtime version enum JSVersion in jspubtd.h. Code in the engine can
* therefore count on version <= JSVERSION_1_4 to mean "before the Third
* Edition of ECMA-262" and version > JSVERSION_1_4 to mean "at or after the
* Third Edition".
*
* In the (likely?) event that SpiderMonkey grows to implement JavaScript 2.0,
* the version number to use would be near 200, or greater.
*
* The JS_VERSION_ECMA_3 version is the minimal configuration conforming to
* the ECMA-262 Edition 3 specification. Use it for minimal embeddings, where
* you're sure you don't need any of the extensions disabled in this version.
* In order to facilitate testing, JS_HAS_OBJ_PROTO_PROP is defined as part of
* the JS_VERSION_ECMA_3_TEST version.
*
* To keep things sane in the modern age, where we need exceptions in order to
* implement, e.g., iterators and generators, we are dropping support for all
* versions <= 1.4.
*/
#define JS_VERSION_ECMA_3 148
#define JS_VERSION_ECMA_3_TEST 149
#if JS_VERSION == JS_VERSION_ECMA_3 || \
JS_VERSION == JS_VERSION_ECMA_3_TEST
#define JS_HAS_STR_HTML_HELPERS 0 /* has str.anchor, str.bold, etc. */
#define JS_HAS_PERL_SUBSTR 0 /* has str.substr */
#if JS_VERSION == JS_VERSION_ECMA_3_TEST
#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
#else
#define JS_HAS_OBJ_PROTO_PROP 0 /* has o.__proto__ etc. */
#endif
#define JS_HAS_OBJ_WATCHPOINT 0 /* has o.watch and o.unwatch */
#define JS_HAS_XDR 0 /* has XDR API and internal support */
#define JS_HAS_TOSOURCE 0 /* has Object/Array toSource method */
#define JS_HAS_CATCH_GUARD 0 /* has exception handling catch guard */
#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
#define JS_HAS_UNEVAL 0 /* has uneval() top-level function */
#define JS_HAS_CONST 0 /* has JS2 const as alternative var */
#define JS_HAS_FUN_EXPR_STMT 0 /* has function expression statement */
#define JS_HAS_NO_SUCH_METHOD 0 /* has o.__noSuchMethod__ handler */
#define JS_HAS_XML_SUPPORT 0 /* has ECMAScript for XML support */
#define JS_HAS_GENERATORS 0 /* has yield in generator function */
#define JS_HAS_BLOCK_SCOPE 0 /* has block scope via let/arraycomp */
#define JS_HAS_DESTRUCTURING 0 /* has [a,b] = ... or {p:a,q:b} = ... */
#define JS_HAS_GENERATOR_EXPRS 0 /* has (expr for (lhs in iterable)) */
#define JS_HAS_EXPR_CLOSURES 0 /* has function (formals) listexpr */
#elif JS_VERSION < 150
#error "unsupported JS_VERSION"
#elif JS_VERSION == 150
#define JS_HAS_STR_HTML_HELPERS 1 /* has str.anchor, str.bold, etc. */
#define JS_HAS_PERL_SUBSTR 1 /* has str.substr */
#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
#define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */
#define JS_HAS_XDR 1 /* has XDR API and internal support */
#define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */
#define JS_HAS_CATCH_GUARD 1 /* has exception handling catch guard */
#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
#define JS_HAS_UNEVAL 1 /* has uneval() top-level function */
#define JS_HAS_CONST 1 /* has JS2 const as alternative var */
#define JS_HAS_FUN_EXPR_STMT 1 /* has function expression statement */
#define JS_HAS_NO_SUCH_METHOD 1 /* has o.__noSuchMethod__ handler */
#define JS_HAS_XML_SUPPORT 0 /* has ECMAScript for XML support */
#define JS_HAS_GENERATORS 0 /* has yield in generator function */
#define JS_HAS_BLOCK_SCOPE 0 /* has block scope via let/arraycomp */
#define JS_HAS_DESTRUCTURING 0 /* has [a,b] = ... or {p:a,q:b} = ... */
#define JS_HAS_GENERATOR_EXPRS 0 /* has (expr for (lhs in iterable)) */
#define JS_HAS_EXPR_CLOSURES 0 /* has function (formals) listexpr */
#elif JS_VERSION == 160
#define JS_HAS_STR_HTML_HELPERS 1 /* has str.anchor, str.bold, etc. */
#define JS_HAS_PERL_SUBSTR 1 /* has str.substr */
#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
#define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */
#define JS_HAS_XDR 1 /* has XDR API and internal support */
#define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */
#define JS_HAS_CATCH_GUARD 1 /* has exception handling catch guard */
#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
#define JS_HAS_UNEVAL 1 /* has uneval() top-level function */
#define JS_HAS_CONST 1 /* has JS2 const as alternative var */
#define JS_HAS_FUN_EXPR_STMT 1 /* has function expression statement */
#define JS_HAS_NO_SUCH_METHOD 1 /* has o.__noSuchMethod__ handler */
#define JS_HAS_XML_SUPPORT 1 /* has ECMAScript for XML support */
#define JS_HAS_GENERATORS 0 /* has yield in generator function */
#define JS_HAS_BLOCK_SCOPE 0 /* has block scope via let/arraycomp */
#define JS_HAS_DESTRUCTURING 0 /* has [a,b] = ... or {p:a,q:b} = ... */
#define JS_HAS_GENERATOR_EXPRS 0 /* has (expr for (lhs in iterable)) */
#define JS_HAS_EXPR_CLOSURES 0 /* has function (formals) listexpr */
#elif JS_VERSION == 170
#define JS_HAS_STR_HTML_HELPERS 1 /* has str.anchor, str.bold, etc. */
#define JS_HAS_PERL_SUBSTR 1 /* has str.substr */
#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
#define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */
#define JS_HAS_XDR 1 /* has XDR API and internal support */
#define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */
#define JS_HAS_CATCH_GUARD 1 /* has exception handling catch guard */
#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
#define JS_HAS_UNEVAL 1 /* has uneval() top-level function */
#define JS_HAS_CONST 1 /* has JS2 const as alternative var */
#define JS_HAS_FUN_EXPR_STMT 1 /* has function expression statement */
#define JS_HAS_NO_SUCH_METHOD 1 /* has o.__noSuchMethod__ handler */
#define JS_HAS_XML_SUPPORT 1 /* has ECMAScript for XML support */
#define JS_HAS_GENERATORS 1 /* has yield in generator function */
#define JS_HAS_BLOCK_SCOPE 1 /* has block scope via let/arraycomp */
#define JS_HAS_DESTRUCTURING 1 /* has [a,b] = ... or {p:a,q:b} = ... */
#define JS_HAS_GENERATOR_EXPRS 0 /* has (expr for (lhs in iterable)) */
#define JS_HAS_EXPR_CLOSURES 0 /* has function (formals) listexpr */
#elif 180 <= JS_VERSION && JS_VERSION <= 185
#define JS_HAS_STR_HTML_HELPERS 1 /* has str.anchor, str.bold, etc. */
#define JS_HAS_PERL_SUBSTR 1 /* has str.substr */
#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
#define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */
#define JS_HAS_XDR 1 /* has XDR API and internal support */
#define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */
#define JS_HAS_CATCH_GUARD 1 /* has exception handling catch guard */
#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
#define JS_HAS_UNEVAL 1 /* has uneval() top-level function */
#define JS_HAS_CONST 1 /* has JS2 const as alternative var */
#define JS_HAS_FUN_EXPR_STMT 1 /* has function expression statement */
#define JS_HAS_NO_SUCH_METHOD 1 /* has o.__noSuchMethod__ handler */
#define JS_HAS_XML_SUPPORT 1 /* has ECMAScript for XML support */
#define JS_HAS_GENERATORS 1 /* has yield in generator function */
#define JS_HAS_BLOCK_SCOPE 1 /* has block scope via let/arraycomp */
#define JS_HAS_DESTRUCTURING 2 /* has [a,b] = ... or {p:a,q:b} = ... */
#define JS_HAS_GENERATOR_EXPRS 1 /* has (expr for (lhs in iterable)) */
#define JS_HAS_EXPR_CLOSURES 1 /* has function (formals) listexpr */
#else
#error "unknown JS_VERSION"
#endif
/* Support for JS_NewGlobalObject. */
#define JS_HAS_NEW_GLOBAL_OBJECT 1
/* Support for JS_MakeSystemObject. */
#define JS_HAS_MAKE_SYSTEM_OBJECT 1
/* Feature-test macro for evolving destructuring support. */
#define JS_HAS_DESTRUCTURING_SHORTHAND (JS_HAS_DESTRUCTURING == 2)
/*
* Feature for Object.prototype.__{define,lookup}{G,S}etter__ legacy support;
* support likely to be made opt-in at some future time.
*/
#define OLD_GETTER_SETTER_METHODS 1
