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js/src/tests/js1_8/genexps/regress-634472.js@6474c204b198 (annotated)

js/src/tests/js1_8/genexps/regress-634472.js

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6
michael@0 7 //-----------------------------------------------------------------------------
michael@0 8 var BUGNUMBER = 634472;
michael@0 9 var summary = 'contextual restrictions for yield and arguments';
michael@0 10 var actual = '';
michael@0 11 var expect = '';
michael@0 12
michael@0 13
michael@0 14 function error(str) {
michael@0 15 let base;
michael@0 16 try {
michael@0 17 // the following line must not be broken up into multiple lines
michael@0 18 base = (function(){try{eval('throw new Error()')}catch(e){return e.lineNumber}})(); eval(str);
michael@0 19 return null;
michael@0 20 } catch (e) {
michael@0 21 e.lineNumber = e.lineNumber - base + 1;
michael@0 22 return e;
michael@0 23 }
michael@0 24 }
michael@0 25
michael@0 26 const JSMSG_GENEXP_YIELD = error("(function(){((yield) for (x in []))})").message;
michael@0 27 const JSMSG_TOP_YIELD = error("yield").message;
michael@0 28 const JSMSG_YIELD_PAREN = error("(function(){yield, 1})").message;
michael@0 29 const JSMSG_YIELD_FOR = error("(function(){yield for})").message;
michael@0 30 const JSMSG_BAD_GENERATOR_SYNTAX = error("(1, x for (x in []))").message;
michael@0 31
michael@0 32 const cases = [
michael@0 33 // yield expressions
michael@0 34 { expr: "yield", top: JSMSG_TOP_YIELD, fun: null, gen: JSMSG_GENEXP_YIELD, desc: "simple yield" },
michael@0 35 { expr: "yield 1", top: JSMSG_TOP_YIELD, fun: null, gen: JSMSG_GENEXP_YIELD, desc: "yield w/ arg" },
michael@0 36 { expr: "1, yield", top: JSMSG_TOP_YIELD, fun: null, gen: JSMSG_GENEXP_YIELD, desc: "simple yield at end of list" },
michael@0 37 { expr: "1, yield 2", top: JSMSG_TOP_YIELD, fun: null, gen: JSMSG_GENEXP_YIELD, desc: "yield w/ arg at end of list" },
michael@0 38 { expr: "yield, 1", top: JSMSG_TOP_YIELD, fun: JSMSG_YIELD_PAREN, gen: JSMSG_YIELD_PAREN, desc: "simple yield in list" },
michael@0 39 { expr: "yield 1, 2", top: JSMSG_TOP_YIELD, fun: JSMSG_YIELD_PAREN, gen: JSMSG_YIELD_PAREN, desc: "yield w/ arg in list" },
michael@0 40 { expr: "(yield)", top: JSMSG_TOP_YIELD, fun: null, gen: JSMSG_GENEXP_YIELD, desc: "simple yield, parenthesized" },
michael@0 41 { expr: "(yield 1)", top: JSMSG_TOP_YIELD, fun: null, gen: JSMSG_GENEXP_YIELD, desc: "yield w/ arg, parenthesized" },
michael@0 42 { expr: "(1, yield)", top: JSMSG_TOP_YIELD, fun: null, gen: JSMSG_GENEXP_YIELD, desc: "simple yield at end of list, parenthesized" },
michael@0 43 { expr: "(1, yield 2)", top: JSMSG_TOP_YIELD, fun: null, gen: JSMSG_GENEXP_YIELD, desc: "yield w/ arg at end of list, parenthesized" },
michael@0 44 { expr: "(yield, 1)", top: JSMSG_TOP_YIELD, fun: JSMSG_YIELD_PAREN, gen: JSMSG_YIELD_PAREN, desc: "simple yield in list, parenthesized" },
michael@0 45 { expr: "(yield 1, 2)", top: JSMSG_TOP_YIELD, fun: JSMSG_YIELD_PAREN, gen: JSMSG_YIELD_PAREN, desc: "yield w/ arg in list, parenthesized" },
michael@0 46
michael@0 47 // deeply nested yield expressions
michael@0 48 { expr: "((((yield))))", top: JSMSG_TOP_YIELD, fun: null, gen: JSMSG_GENEXP_YIELD, desc: "deeply nested yield" },
michael@0 49 { expr: "((((yield 1))))", top: JSMSG_TOP_YIELD, fun: null, gen: JSMSG_GENEXP_YIELD, desc: "deeply nested yield w/ arg" },
michael@0 50
michael@0 51 // arguments
michael@0 52 { expr: "arguments", top: null, fun: null, gen: null, desc: "arguments in list" },
michael@0 53 { expr: "1, arguments", top: null, fun: null, gen: null, desc: "arguments in list" },
michael@0 54
michael@0 55 // yield in generator expressions
michael@0 56 { expr: "(yield for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_YIELD_FOR, gen: JSMSG_YIELD_FOR, desc: "simple yield in genexp" },
michael@0 57 { expr: "(yield 1 for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_GENEXP_YIELD, gen: JSMSG_GENEXP_YIELD, desc: "yield w/ arg in genexp" },
michael@0 58 { expr: "(yield, 1 for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_YIELD_PAREN, gen: JSMSG_YIELD_PAREN, desc: "simple yield in list in genexp" },
michael@0 59 { expr: "(yield 1, 2 for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_YIELD_PAREN, gen: JSMSG_YIELD_PAREN, desc: "yield w/ arg in list in genexp" },
michael@0 60 { expr: "(1, yield for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_YIELD_FOR, gen: JSMSG_YIELD_FOR, desc: "simple yield at end of list in genexp" },
michael@0 61 { expr: "(1, yield 2 for (x in []))", top: JSMSG_TOP_YIELD, fun: { simple: JSMSG_GENEXP_YIELD, call: JSMSG_GENEXP_YIELD },
michael@0 62 gen: JSMSG_GENEXP_YIELD, desc: "yield w/ arg at end of list in genexp" },
michael@0 63 { expr: "((yield) for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_GENEXP_YIELD, gen: JSMSG_GENEXP_YIELD, desc: "simple yield, parenthesized in genexp" },
michael@0 64 { expr: "((yield 1) for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_GENEXP_YIELD, gen: JSMSG_GENEXP_YIELD, desc: "yield w/ arg, parenthesized in genexp" },
michael@0 65 { expr: "(1, (yield) for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_GENEXP_YIELD, gen: JSMSG_GENEXP_YIELD, desc: "simple yield, parenthesized in list in genexp" },
michael@0 66 { expr: "(1, (yield 2) for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_GENEXP_YIELD, gen: JSMSG_GENEXP_YIELD, desc: "yield w/ arg, parenthesized in list in genexp" },
michael@0 67 { expr: "((1, yield) for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_GENEXP_YIELD, gen: JSMSG_GENEXP_YIELD, desc: "simple yield at end of list, parenthesized in genexp" },
michael@0 68 { expr: "((1, yield 2) for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_GENEXP_YIELD, gen: JSMSG_GENEXP_YIELD, desc: "yield w/ arg at end of list, parenthesized in genexp" },
michael@0 69 { expr: "(1, (2, yield) for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_GENEXP_YIELD, gen: JSMSG_GENEXP_YIELD, desc: "simple yield at end of list, parenthesized in list in genexp" },
michael@0 70 { expr: "(1, (2, yield 3) for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_GENEXP_YIELD, gen: JSMSG_GENEXP_YIELD, desc: "yield w/ arg at end of list, parenthesized in list in genexp" },
michael@0 71 { expr: "((yield, 1) for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_YIELD_PAREN, gen: JSMSG_YIELD_PAREN, desc: "simple yield in list, parenthesized in genexp" },
michael@0 72 { expr: "((yield 1, 2) for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_YIELD_PAREN, gen: JSMSG_YIELD_PAREN, desc: "yield w/ arg in list, parenthesized in genexp" },
michael@0 73 { expr: "(1, (yield, 2) for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_YIELD_PAREN, gen: JSMSG_YIELD_PAREN, desc: "simple yield in list, parenthesized in list in genexp" },
michael@0 74 { expr: "(1, (yield 2, 3) for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_YIELD_PAREN, gen: JSMSG_YIELD_PAREN, desc: "yield w/ arg in list, parenthesized in list in genexp" },
michael@0 75
michael@0 76 // deeply nested yield in generator expressions
michael@0 77 { expr: "((((1, yield 2))) for (x in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_GENEXP_YIELD, gen: JSMSG_GENEXP_YIELD, desc: "deeply nested yield in genexp" },
michael@0 78 { expr: "((((1, yield 2)) for (x in [])) for (y in []))", top: JSMSG_TOP_YIELD, fun: JSMSG_GENEXP_YIELD, gen: JSMSG_GENEXP_YIELD, desc: "deeply nested yield in multiple genexps" },
michael@0 79
michael@0 80 // arguments in generator expressions
michael@0 81 { expr: "(arguments for (x in []))", top: null, fun: null, gen: null, desc: "simple arguments in genexp" },
michael@0 82 { expr: "(1, arguments for (x in []))", top: JSMSG_BAD_GENERATOR_SYNTAX, fun: JSMSG_BAD_GENERATOR_SYNTAX, gen: JSMSG_BAD_GENERATOR_SYNTAX, desc: "arguments in list in genexp" },
michael@0 83 { expr: "((arguments) for (x in []))", top: null, fun: null, gen: null, desc: "arguments, parenthesized in genexp" },
michael@0 84 { expr: "(1, (arguments) for (x in []))", top: JSMSG_BAD_GENERATOR_SYNTAX, fun: JSMSG_BAD_GENERATOR_SYNTAX, gen: JSMSG_BAD_GENERATOR_SYNTAX, desc: "arguments, parenthesized in list in genexp" },
michael@0 85 { expr: "((1, arguments) for (x in []))", top: null, fun: null, gen: null, desc: "arguments in list, parenthesized in genexp" },
michael@0 86 { expr: "(1, (2, arguments) for (x in []))", top: JSMSG_BAD_GENERATOR_SYNTAX, fun: JSMSG_BAD_GENERATOR_SYNTAX, gen: JSMSG_BAD_GENERATOR_SYNTAX, desc: "arguments in list, parenthesized in list in genexp" },
michael@0 87
michael@0 88 // deeply nested arguments in generator expressions
michael@0 89 { expr: "((((1, arguments))) for (x in []))", top: null, fun: null, gen: null, desc: "deeply nested arguments in genexp" },
michael@0 90 { expr: "((((1, arguments)) for (x in [])) for (y in []))", top: null, fun: null, gen: null, desc: "deeply nested arguments in multiple genexps" },
michael@0 91
michael@0 92 // legal yield/arguments in nested function
michael@0 93 { expr: "((function() { yield }) for (x in []))", top: null, fun: null, gen: null, desc: "legal yield in nested function" },
michael@0 94 { expr: "((function() { arguments }) for (x in []))", top: null, fun: null, gen: null, desc: "legal arguments in nested function" },
michael@0 95 { expr: "((function() arguments) for (x in []))", top: null, fun: null, gen: null, desc: "legal arguments in nested expression-closure" }
michael@0 96 ];
michael@0 97
michael@0 98 //-----------------------------------------------------------------------------
michael@0 99 test();
michael@0 100 //-----------------------------------------------------------------------------
michael@0 101
michael@0 102 function splitKeyword(str) {
michael@0 103 return str.
michael@0 104 replace(/yield for/, '\nyield for\n').
michael@0 105 replace(/yield ([0-9])/, '\nyield $1\n').
michael@0 106 replace(/yield([^ ]|$)/, '\nyield\n$1').
michael@0 107 replace(/arguments/, '\narguments\n');
michael@0 108 }
michael@0 109
michael@0 110 function expectError1(err, ctx, msg) {
michael@0 111 reportCompare('object', typeof err, 'exn for: ' + msg);
michael@0 112 reportCompare(ctx, err.message, 'exn message for: ' + msg);
michael@0 113 if (ctx !== JSMSG_BAD_GENERATOR_SYNTAX)
michael@0 114 reportCompare(2, err.lineNumber, 'exn token for: ' + msg);
michael@0 115 }
michael@0 116
michael@0 117 function expectError(expr, call, wrapCtx, expect, msg) {
michael@0 118 let exps = (typeof expect === "string")
michael@0 119 ? { simple: expect, call: expect }
michael@0 120 : expect;
michael@0 121 expectError1(error(wrapCtx(expr)), exps.simple, msg);
michael@0 122 if (call)
michael@0 123 expectError1(error(wrapCtx(call)), exps.call, 'call argument in ' + msg);
michael@0 124 }
michael@0 125
michael@0 126 function expectSuccess(err, msg) {
michael@0 127 reportCompare(null, err, 'parse: ' + msg);
michael@0 128 }
michael@0 129
michael@0 130 function atTop(str) { return str }
michael@0 131 function inFun(str) { return '(function(){' + str + '})' }
michael@0 132 function inGen(str) { return '(y for (y in ' + str + '))' }
michael@0 133
michael@0 134 function test()
michael@0 135 {
michael@0 136 enterFunc ('test');
michael@0 137 printBugNumber(BUGNUMBER);
michael@0 138 printStatus (summary);
michael@0 139
michael@0 140 for (let i = 0, len = cases.length; i < len; i++) {
michael@0 141 let {expr, top, fun, gen, desc} = cases[i];
michael@0 142
michael@0 143 let call = (expr[0] === "(") ? ("print" + expr) : null;
michael@0 144
michael@0 145 expr = splitKeyword(expr);
michael@0 146 if (call)
michael@0 147 call = splitKeyword(call);
michael@0 148
michael@0 149 if (top)
michael@0 150 expectError(expr, call, atTop, top, 'top-level context, ' + desc);
michael@0 151 else
michael@0 152 expectSuccess(error(expr), 'top-level context, ' + desc);
michael@0 153
michael@0 154 if (fun)
michael@0 155 expectError(expr, call, inFun, fun, 'function context, ' + desc);
michael@0 156 else
michael@0 157 expectSuccess(error(inFun(expr)), 'function context, ' + desc);
michael@0 158
michael@0 159 if (gen)
michael@0 160 expectError(expr, call, inGen, gen, 'genexp context, ' + desc);
michael@0 161 else
michael@0 162 expectSuccess(error(inGen(expr)), 'genexp context, ' + desc);
michael@0 163 }
michael@0 164
michael@0 165 exitFunc ('test');
michael@0 166 }

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