jsconfig.h

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 * The Original Code is Mozilla Communicator client code, released
 * March 31, 1998.
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/*
 * JS configuration macros.
 */
#ifndef JS_VERSION
#define JS_VERSION 150
#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
 *              ^                       ^
 *              |                       |
 *              basis for ECMAv1        close to ECMAv2
 *
 * where ECMAv3 stands for ECMA-262 Edition 3.  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 unlikely event that SpiderMonkey ever implements JavaScript 2.0, or
 * ECMA-262 Edition 4 (JS2 without certain extensions), 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.
 */
#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_BUG_NULL_INDEX_PROPS 0       /* o[0] defaults to null, not void */
#define JS_BUG_EMPTY_INDEX_ZERO 0       /* o[""] is equivalent to o[0] */
#define JS_BUG_EAGER_TOSTRING   0       /* o.toString() trumps o.valueOf() */
#define JS_BUG_VOID_TOSTRING    0       /* void 0 + 0 == "undefined0" */
#define JS_BUG_EVAL_THIS_FUN    0       /* eval('this') in function f is f */
#define JS_BUG_EVAL_THIS_SCOPE  0       /* Math.eval('sin(x)') vs. local x */
#define JS_BUG_FALLIBLE_EQOPS   0       /* fallible/intransitive equality ops */
#define JS_BUG_FALLIBLE_TONUM   0       /* fallible ValueToNumber primitive */
#define JS_BUG_WITH_CLOSURE     0       /* with(o)function f(){} sets o.f */

#define JS_HAS_PROP_DELETE      1       /* delete o.p removes p from o */
#define JS_HAS_CALL_OBJECT      1       /* fun.caller is stack frame obj */
#define JS_HAS_LABEL_STATEMENT  1       /* has break/continue to label: */
#define JS_HAS_DO_WHILE_LOOP    1       /* has do {...} while (b) */
#define JS_HAS_SWITCH_STATEMENT 1       /* has switch (v) {case c: ...} */
#define JS_HAS_SOME_PERL_FUN    1       /* has array.join/reverse/sort */
#define JS_HAS_MORE_PERL_FUN    1       /* has array.push, array.pop, etc */
#define JS_HAS_STR_HTML_HELPERS 0       /* has str.anchor, str.bold, etc. */
#define JS_HAS_PERL_SUBSTR      0       /* has str.substr */
#define JS_HAS_VALUEOF_HINT     1       /* valueOf(hint) where hint is typeof */
#define JS_HAS_LEXICAL_CLOSURE  1       /* nested functions, lexically closed */
#define JS_HAS_APPLY_FUNCTION   1       /* has fun.apply(obj, argArray) */
#define JS_HAS_CALL_FUNCTION    1       /* has fun.call(obj, arg1, ... argN) */
#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_REGEXPS          1       /* has perl r.e.s via RegExp, /pat/ */
#define JS_HAS_SEQUENCE_OPS     1       /* has array.slice, string.concat */
#define JS_HAS_INITIALIZERS     1       /* has var o = {'foo': 42, 'bar':3} */
#define JS_HAS_OBJ_WATCHPOINT   0       /* has o.watch and o.unwatch */
#define JS_HAS_EXPORT_IMPORT    0       /* has export fun; import obj.fun */
#define JS_HAS_EVAL_THIS_SCOPE  0       /* Math.eval is same as with (Math) */
#define JS_HAS_TRIPLE_EQOPS     1       /* has === and !== identity eqops */
#define JS_HAS_SHARP_VARS       0       /* has #n=, #n# for object literals */
#define JS_HAS_REPLACE_LAMBDA   1       /* has string.replace(re, lambda) */
#define JS_HAS_SCRIPT_OBJECT    0       /* has (new Script("x++")).exec() */
#define JS_HAS_XDR              0       /* has XDR API and internal support */
#define JS_HAS_XDR_FREEZE_THAW  0       /* has XDR freeze/thaw script methods */
#define JS_HAS_EXCEPTIONS       1       /* has exception handling */
#define JS_HAS_UNDEFINED        1       /* has global "undefined" property */
#define JS_HAS_TOSOURCE         0       /* has Object/Array toSource method */
#define JS_HAS_IN_OPERATOR      1       /* has in operator ('p' in {p:1}) */
#define JS_HAS_INSTANCEOF       1       /* has {p:1} instanceof Object */
#define JS_HAS_ARGS_OBJECT      1       /* has minimal ECMA arguments object */
#define JS_HAS_DEBUGGER_KEYWORD 0       /* has hook for debugger keyword */
#define JS_HAS_ERROR_EXCEPTIONS 1       /* has error object hierarchy */
#define JS_HAS_CATCH_GUARD      0       /* has exception handling catch guard */
#define JS_HAS_NEW_OBJ_METHODS  1       /* has Object.prototype query methods */
#define JS_HAS_SPARSE_ARRAYS    0       /* array methods preserve empty elems */
#define JS_HAS_DFLT_MSG_STRINGS 1       /* provides English error messages */
#define JS_HAS_NUMBER_FORMATS   1       /* numbers have formatting methods */
#define JS_HAS_GETTER_SETTER    0       /* has JS2 getter/setter functions */
#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_LVALUE_RETURN    1       /* has o.item(i) = j; for native item */
#define JS_HAS_NO_SUCH_METHOD   0       /* has o.__noSuchMethod__ handler */

#elif JS_VERSION == 100

#define JS_BUG_NULL_INDEX_PROPS 1       /* o[0] defaults to null, not void */
#define JS_BUG_EMPTY_INDEX_ZERO 1       /* o[""] is equivalent to o[0] */
#define JS_BUG_EAGER_TOSTRING   1       /* o.toString() trumps o.valueOf() */
#define JS_BUG_VOID_TOSTRING    0       /* void 0 + 0 == "undefined0" */
#define JS_BUG_EVAL_THIS_FUN    0       /* eval('this') in function f is f */
#define JS_BUG_EVAL_THIS_SCOPE  0       /* Math.eval('sin(x)') vs. local x */
#define JS_BUG_FALLIBLE_EQOPS   1       /* fallible/intransitive equality ops */
#define JS_BUG_FALLIBLE_TONUM   1       /* fallible ValueToNumber primitive */
#define JS_BUG_WITH_CLOSURE     0       /* with(o)function f(){} sets o.f */

#define JS_HAS_PROP_DELETE      0       /* delete o.p removes p from o */
#define JS_HAS_CALL_OBJECT      0       /* fun.caller is stack frame obj */
#define JS_HAS_LABEL_STATEMENT  0       /* has break/continue to label: */
#define JS_HAS_DO_WHILE_LOOP    0       /* has do {...} while (b) */
#define JS_HAS_SWITCH_STATEMENT 0       /* has switch (v) {case c: ...} */
#define JS_HAS_SOME_PERL_FUN    0       /* has array.join/reverse/sort */
#define JS_HAS_MORE_PERL_FUN    0       /* has array.push, str.substr, etc */
#define JS_HAS_STR_HTML_HELPERS 1       /* has str.anchor, str.bold, etc. */
#define JS_HAS_PERL_SUBSTR      0       /* has str.substr */
#define JS_HAS_VALUEOF_HINT     0       /* valueOf(hint) where hint is typeof */
#define JS_HAS_LEXICAL_CLOSURE  0       /* nested functions, lexically closed */
#define JS_HAS_APPLY_FUNCTION   0       /* has fun.apply(obj, argArray) */
#define JS_HAS_CALL_FUNCTION    0       /* has fun.call(obj, arg1, ... argN) */
#define JS_HAS_OBJ_PROTO_PROP   0       /* has o.__proto__ etc. */
#define JS_HAS_REGEXPS          0       /* has perl r.e.s via RegExp, /pat/ */
#define JS_HAS_SEQUENCE_OPS     0       /* has array.slice, string.concat */