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      1 // Copyright 2013 the V8 project authors. All rights reserved.
      2 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
      3 //
      4 // Redistribution and use in source and binary forms, with or without
      5 // modification, are permitted provided that the following conditions
      6 // are met:
      7 // 1.  Redistributions of source code must retain the above copyright
      8 //     notice, this list of conditions and the following disclaimer.
      9 // 2.  Redistributions in binary form must reproduce the above copyright
     10 //     notice, this list of conditions and the following disclaimer in the
     11 //     documentation and/or other materials provided with the distribution.
     12 //
     13 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
     14 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     15 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     16 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     17 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     18 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     19 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     20 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     21 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     22 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23 
     24 description(
     25 "This test verifies that keywords and reserved words match those specified in ES5 section 7.6."
     26 );
     27 
     28 function isKeyword(x)
     29 {
     30     try {
     31         eval("var "+x+";");
     32     } catch(e) {
     33         return true;
     34     }
     35 
     36     return false;
     37 }
     38 
     39 function isStrictKeyword(x)
     40 {
     41     try {
     42         eval("'use strict'; var "+x+";");
     43     } catch(e) {
     44         return true;
     45     }
     46 
     47     return false;
     48 }
     49 
     50 function classifyIdentifier(x)
     51 {
     52     if (isKeyword(x)) {
     53         // All non-strict keywords are also keywords in strict code.
     54         if (!isStrictKeyword(x))
     55             return "ERROR";
     56         return "keyword";
     57     }
     58 
     59     // Check for strict mode future reserved words.
     60     if (isStrictKeyword(x))
     61         return "strict";
     62 
     63     return "identifier";
     64 }
     65 
     66 // Not keywords - these are all just identifiers.
     67 shouldBe('classifyIdentifier("x")', '"identifier"');
     68 shouldBe('classifyIdentifier("id")', '"identifier"');
     69 shouldBe('classifyIdentifier("identifier")', '"identifier"');
     70 shouldBe('classifyIdentifier("keyword")', '"identifier"');
     71 shouldBe('classifyIdentifier("strict")', '"identifier"');
     72 shouldBe('classifyIdentifier("use")', '"identifier"');
     73 // These are identifiers that we used to treat as keywords!
     74 shouldBe('classifyIdentifier("abstract")', '"identifier"');
     75 shouldBe('classifyIdentifier("boolean")', '"identifier"');
     76 shouldBe('classifyIdentifier("byte")', '"identifier"');
     77 shouldBe('classifyIdentifier("char")', '"identifier"');
     78 shouldBe('classifyIdentifier("double")', '"identifier"');
     79 shouldBe('classifyIdentifier("final")', '"identifier"');
     80 shouldBe('classifyIdentifier("float")', '"identifier"');
     81 shouldBe('classifyIdentifier("goto")', '"identifier"');
     82 shouldBe('classifyIdentifier("int")', '"identifier"');
     83 shouldBe('classifyIdentifier("long")', '"identifier"');
     84 shouldBe('classifyIdentifier("native")', '"identifier"');
     85 shouldBe('classifyIdentifier("short")', '"identifier"');
     86 shouldBe('classifyIdentifier("synchronized")', '"identifier"');
     87 shouldBe('classifyIdentifier("throws")', '"identifier"');
     88 shouldBe('classifyIdentifier("transient")', '"identifier"');
     89 shouldBe('classifyIdentifier("volatile")', '"identifier"');
     90 
     91 // Keywords.
     92 shouldBe('classifyIdentifier("break")', '"keyword"');
     93 shouldBe('classifyIdentifier("case")', '"keyword"');
     94 shouldBe('classifyIdentifier("catch")', '"keyword"');
     95 shouldBe('classifyIdentifier("continue")', '"keyword"');
     96 shouldBe('classifyIdentifier("debugger")', '"keyword"');
     97 shouldBe('classifyIdentifier("default")', '"keyword"');
     98 shouldBe('classifyIdentifier("delete")', '"keyword"');
     99 shouldBe('classifyIdentifier("do")', '"keyword"');
    100 shouldBe('classifyIdentifier("else")', '"keyword"');
    101 shouldBe('classifyIdentifier("finally")', '"keyword"');
    102 shouldBe('classifyIdentifier("for")', '"keyword"');
    103 shouldBe('classifyIdentifier("function")', '"keyword"');
    104 shouldBe('classifyIdentifier("if")', '"keyword"');
    105 shouldBe('classifyIdentifier("in")', '"keyword"');
    106 shouldBe('classifyIdentifier("instanceof")', '"keyword"');
    107 shouldBe('classifyIdentifier("new")', '"keyword"');
    108 shouldBe('classifyIdentifier("return")', '"keyword"');
    109 shouldBe('classifyIdentifier("switch")', '"keyword"');
    110 shouldBe('classifyIdentifier("this")', '"keyword"');
    111 shouldBe('classifyIdentifier("throw")', '"keyword"');
    112 shouldBe('classifyIdentifier("try")', '"keyword"');
    113 shouldBe('classifyIdentifier("typeof")', '"keyword"');
    114 shouldBe('classifyIdentifier("var")', '"keyword"');
    115 shouldBe('classifyIdentifier("void")', '"keyword"');
    116 shouldBe('classifyIdentifier("while")', '"keyword"');
    117 shouldBe('classifyIdentifier("with")', '"keyword"');
    118 // Technically these are "Future Reserved Words"!
    119 shouldBe('classifyIdentifier("class")', '"keyword"');
    120 shouldBe('classifyIdentifier("const")', '"keyword"');
    121 shouldBe('classifyIdentifier("enum")', '"keyword"');
    122 shouldBe('classifyIdentifier("export")', '"keyword"');
    123 shouldBe('classifyIdentifier("extends")', '"keyword"');
    124 shouldBe('classifyIdentifier("import")', '"keyword"');
    125 shouldBe('classifyIdentifier("super")', '"keyword"');
    126 
    127 // Future Reserved Words, in strict mode only.
    128 shouldBe('classifyIdentifier("implements")', '"strict"');
    129 shouldBe('classifyIdentifier("interface")', '"strict"');
    130 shouldBe('classifyIdentifier("let")', '"strict"');
    131 shouldBe('classifyIdentifier("package")', '"strict"');
    132 shouldBe('classifyIdentifier("private")', '"strict"');
    133 shouldBe('classifyIdentifier("protected")', '"strict"');
    134 shouldBe('classifyIdentifier("public")', '"strict"');
    135 shouldBe('classifyIdentifier("static")', '"strict"');
    136 shouldBe('classifyIdentifier("yield")', '"strict"');
    137