text: /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
   *
   * ***** BEGIN LICENSE BLOCK *****
   * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   *
   * The contents of this file are subject to the Mozilla Public License Version
   * 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
   * http://www.mozilla.org/MPL/
   *
   * Software distributed under the License is distributed on an "AS IS" basis,
   * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
   * 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.
   *
   * Contributor(s):
   *
   * Alternatively, the contents of this file may be used under the terms of
   * either of the GNU General Public License Version 2 or later (the "GPL"),
   * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
   * in which case the provisions of the GPL or the LGPL are applicable instead
   * of those above. If you wish to allow use of your version of this file only
   * under the terms of either the GPL or the LGPL, and not to allow others to
   * use your version of this file under the terms of the MPL, indicate your
   * decision by deleting the provisions above and replace them with the notice
   * and other provisions required by the GPL or the LGPL. If you do not delete
   * the provisions above, a recipient may use your version of this file under
   * the terms of any one of the MPL, the GPL or the LGPL.
   *
   * ***** END LICENSE BLOCK ***** */
  
  /*
   * 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 */
  #define JS_HAS_INITIALIZERS     0       /* 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     0       /* has === and !== identity eqops */
  #define JS_HAS_SHARP_VARS       0       /* has #n=, #n# for object literals */
  #define JS_HAS_REPLACE_LAMBDA   0       /* 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       0       /* has exception handling */
  #define JS_HAS_UNDEFINED        0       /* has global "undefined" property */
  #define JS_HAS_TOSOURCE         0       /* has Object/Array toSource method */
  #define JS_HAS_IN_OPERATOR      0       /* has in operator ('p' in {p:1}) */
  #define JS_HAS_INSTANCEOF       0       /* has {p:1} instanceof Object */
  #define JS_HAS_ARGS_OBJECT      0       /* has minimal ECMA arguments object */
  #define JS_HAS_DEBUGGER_KEYWORD 0       /* has hook for debugger keyword */
  #define JS_HAS_ERROR_EXCEPTIONS 0       /* has error object hierarchy */
  #define JS_HAS_CATCH_GUARD      0       /* has exception handling catch guard */
  #define JS_HAS_NEW_OBJ_METHODS  0       /* 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   0       /* 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    0       /* has o.item(i) = j; for native item */
  #define JS_HAS_NO_SUCH_METHOD   0       /* has o.__noSuchMethod__ handler */
  
  #elif JS_VERSION == 110
  
  #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    1       /* eval('this') in function f is f */
  #define JS_BUG_EVAL_THIS_SCOPE  1       /* 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    1       /* 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 apply(fun, arg1, ... argN) */
  #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 */
  #define JS_HAS_INITIALIZERS     0       /* 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     0       /* has === and !== identity eqops */
  #define JS_HAS_SHARP_VARS       0       /* has #n=, #n# for object literals */
  #define JS_HAS_REPLACE_LAMBDA   0       /* 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       0       /* has exception handling */
  #define JS_HAS_UNDEFINED        0       /* has global "undefined" property */
  #define JS_HAS_TOSOURCE         0       /* has Object/Array toSource method */
  #define JS_HAS_IN_OPERATOR      0       /* has in operator ('p' in {p:1}) */
  #define JS_HAS_INSTANCEOF       0       /* has {p:1} instanceof Object */
  #define JS_HAS_ARGS_OBJECT      0       /* has minimal ECMA arguments object */
  #define JS_HAS_DEBUGGER_KEYWORD 0       /* has hook for debugger keyword */
  #define JS_HAS_ERROR_EXCEPTIONS 0       /* has error object hierarchy */
  #define JS_HAS_CATCH_GUARD      0       /* has exception handling catch guard */
  #define JS_HAS_NEW_OBJ_METHODS  0       /* 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   0       /* 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    0       /* has o.item(i) = j; for native item */
  #define JS_HAS_NO_SUCH_METHOD   0       /* has o.__noSuchMethod__ handler */
  
  #elif JS_VERSION == 120
  
  #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    1       /* 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     1       /* 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, str.substr, etc */
  #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_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 apply(fun, arg1, ... argN) */
  #define JS_HAS_CALL_FUNCTION    0       /* has fun.call(obj, arg1, ... argN) */
  #define JS_HAS_OBJ_PROTO_PROP   1       /* has o.__proto__ etc. */
  #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   1       /* has o.watch and o.unwatch */
  #define JS_HAS_EXPORT_IMPORT    1       /* has export fun; import obj.fun */
  #define JS_HAS_EVAL_THIS_SCOPE  1       /* Math.eval is same as with (Math) */
  #define JS_HAS_TRIPLE_EQOPS     0       /* has === and !== identity eqops */
  #define JS_HAS_SHARP_VARS       0       /* has #n=, #n# for object literals */
  #define JS_HAS_REPLACE_LAMBDA   0       /* 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       0       /* has exception handling */
  #define JS_HAS_UNDEFINED        0       /* has global "undefined" property */
  #define JS_HAS_TOSOURCE         0       /* has Object/Array toSource method */
  #define JS_HAS_IN_OPERATOR      0       /* has in operator ('p' in {p:1}) */
  #define JS_HAS_INSTANCEOF       0       /* has {p:1} instanceof Object */
  #define JS_HAS_ARGS_OBJECT      0       /* has minimal ECMA arguments object */
  #define JS_HAS_DEBUGGER_KEYWORD 0       /* has hook for debugger keyword */
  #define JS_HAS_ERROR_EXCEPTIONS 0       /* has error object hierarchy */
  #define JS_HAS_CATCH_GUARD      0       /* has exception handling catch guard */
  #define JS_HAS_NEW_OBJ_METHODS  0       /* 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   0       /* 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    0       /* has o.item(i) = j; for native item */
  #define JS_HAS_NO_SUCH_METHOD   0       /* has o.__noSuchMethod__ handler */
  
  #elif JS_VERSION == 130
  
  #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     1       /* 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, str.substr, etc */
  #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_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 apply(fun, arg1, ... argN) */
  #define JS_HAS_CALL_FUNCTION    1       /* has fun.call(obj, arg1, ... argN) */
  #define JS_HAS_OBJ_PROTO_PROP   1       /* has o.__proto__ etc. */
  #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   1       /* has o.watch and o.unwatch */
  #define JS_HAS_EXPORT_IMPORT    1       /* has export fun; import obj.fun */
  #define JS_HAS_EVAL_THIS_SCOPE  1       /* Math.eval is same as with (Math) */
  #define JS_HAS_TRIPLE_EQOPS     1       /* has === and !== identity eqops */
  #define JS_HAS_SHARP_VARS       1       /* has #n=, #n# for object literals */
  #define JS_HAS_REPLACE_LAMBDA   1       /* has string.replace(re, lambda) */
  #define JS_HAS_SCRIPT_OBJECT    1       /* has (new Script("x++")).exec() */
  #define JS_HAS_XDR              1       /* has XDR API and internal support */
  #define JS_HAS_XDR_FREEZE_THAW  0       /* has XDR freeze/thaw script methods */
  #define JS_HAS_EXCEPTIONS       0       /* has exception handling */
  #define JS_HAS_UNDEFINED        1       /* has global "undefined" property */
  #define JS_HAS_TOSOURCE         1       /* has Object/Array toSource method */
  #define JS_HAS_IN_OPERATOR      0       /* has in operator ('p' in {p:1}) */
  #define JS_HAS_INSTANCEOF       0       /* has {p:1} instanceof Object */
  #define JS_HAS_ARGS_OBJECT      1       /* has minimal ECMA arguments object */
  #define JS_HAS_DEBUGGER_KEYWORD 1       /* has hook for debugger keyword */
  #define JS_HAS_ERROR_EXCEPTIONS 0       /* has error object hierarchy */
  #define JS_HAS_CATCH_GUARD      0       /* has exception handling catch guard */
  #define JS_HAS_NEW_OBJ_METHODS  0       /* 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   0       /* 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    0       /* has o.item(i) = j; for native item */
  #define JS_HAS_NO_SUCH_METHOD   0       /* has o.__noSuchMethod__ handler */
  
  #elif JS_VERSION == 140
  
  #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     1       /* 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, str.substr, etc */
  #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_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 apply(fun, arg1, ... argN) */
  #define JS_HAS_CALL_FUNCTION    1       /* has fun.call(obj, arg1, ... argN) */
  #define JS_HAS_OBJ_PROTO_PROP   1       /* has o.__proto__ etc. */
  #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   1       /* has o.watch and o.unwatch */
  #define JS_HAS_EXPORT_IMPORT    1       /* has export fun; import obj.fun */
  #define JS_HAS_EVAL_THIS_SCOPE  1       /* Math.eval is same as with (Math) */
  #define JS_HAS_TRIPLE_EQOPS     1       /* has === and !== identity eqops */
  #define JS_HAS_SHARP_VARS       1       /* has #n=, #n# for object literals */
  #define JS_HAS_REPLACE_LAMBDA   1       /* has string.replace(re, lambda) */
  #define JS_HAS_SCRIPT_OBJECT    1       /* has (new Script("x++")).exec() */
  #define JS_HAS_XDR              1       /* 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         1       /* 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 1       /* has hook for debugger keyword */
  #define JS_HAS_ERROR_EXCEPTIONS 0       /* rt errors reflected as exceptions */
  #define JS_HAS_CATCH_GUARD      0       /* has exception handling catch guard */
  #define JS_HAS_NEW_OBJ_METHODS  0       /* 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   0       /* 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    0       /* has o.item(i) = j; for native item */
  #define JS_HAS_NO_SUCH_METHOD   0       /* has o.__noSuchMethod__ handler */
  
  #elif JS_VERSION == 150
  
  #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, str.substr, etc */
  #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_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 apply(fun, arg1, ... argN) */
  #define JS_HAS_CALL_FUNCTION    1       /* has fun.call(obj, arg1, ... argN) */
  #define JS_HAS_OBJ_PROTO_PROP   1       /* has o.__proto__ etc. */
  #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   1       /* has o.watch and o.unwatch */
  #define JS_HAS_EXPORT_IMPORT    1       /* has export fun; import obj.fun */
  #define JS_HAS_EVAL_THIS_SCOPE  1       /* Math.eval is same as with (Math) */
  #define JS_HAS_TRIPLE_EQOPS     1       /* has === and !== identity eqops */
  #define JS_HAS_SHARP_VARS       1       /* has #n=, #n# for object literals */
  #define JS_HAS_REPLACE_LAMBDA   1       /* has string.replace(re, lambda) */
  #define JS_HAS_SCRIPT_OBJECT    1       /* has (new Script("x++")).exec() */
  #define JS_HAS_XDR              1       /* 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         1       /* 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 1       /* has hook for debugger keyword */
  #define JS_HAS_ERROR_EXCEPTIONS 1       /* rt errors reflected as exceptions */
  #define JS_HAS_CATCH_GUARD      1       /* 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    1       /* has JS2 getter/setter functions */
  #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_LVALUE_RETURN    1       /* has o.item(i) = j; for native item */
  #define JS_HAS_NO_SUCH_METHOD   1       /* has o.__noSuchMethod__ handler */
  
  #else
  
  #error "unknown JS_VERSION"
  
  #endif
  