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1217 lines
42 KiB
1217 lines
42 KiB
// Copyright 2011 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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function CheckStrictMode(code, exception) {
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assertDoesNotThrow(code);
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assertThrows("'use strict';\n" + code, exception);
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assertThrows('"use strict";\n' + code, exception);
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assertDoesNotThrow("\
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function outer() {\
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function inner() {\n"
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+ code +
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"\n}\
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}");
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assertThrows("\
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function outer() {\
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'use strict';\
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function inner() {\n"
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+ code +
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"\n}\
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}", exception);
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}
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function CheckFunctionConstructorStrictMode() {
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var args = [];
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for (var i = 0; i < arguments.length; i ++) {
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args[i] = arguments[i];
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}
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// Create non-strict function. No exception.
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args[arguments.length] = "";
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assertDoesNotThrow(function() {
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Function.apply(this, args);
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});
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// Create strict mode function. Exception expected.
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args[arguments.length] = "'use strict';";
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assertThrows(function() {
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Function.apply(this, args);
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}, SyntaxError);
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}
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// Incorrect 'use strict' directive.
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(function UseStrictEscape() {
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"use\\x20strict";
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with ({}) {};
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})();
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// Incorrectly place 'use strict' directive.
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assertThrows("function foo (x) 'use strict'; {}", SyntaxError);
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// 'use strict' in non-directive position.
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(function UseStrictNonDirective() {
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void(0);
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"use strict";
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with ({}) {};
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})();
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// Multiple directives, including "use strict".
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assertThrows('\
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"directive 1";\
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"another directive";\
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"use strict";\
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"directive after strict";\
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"and one more";\
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with({}) {}', SyntaxError);
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// 'with' disallowed in strict mode.
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CheckStrictMode("with({}) {}", SyntaxError);
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// Function named 'eval'.
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CheckStrictMode("function eval() {}", SyntaxError);
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// Function named 'arguments'.
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CheckStrictMode("function arguments() {}", SyntaxError);
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// Function parameter named 'eval'.
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CheckStrictMode("function foo(a, b, eval, c, d) {}", SyntaxError);
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// Function parameter named 'arguments'.
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CheckStrictMode("function foo(a, b, arguments, c, d) {}", SyntaxError);
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// Property accessor parameter named 'eval'.
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CheckStrictMode("var o = { set foo(eval) {} }", SyntaxError);
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// Property accessor parameter named 'arguments'.
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CheckStrictMode("var o = { set foo(arguments) {} }", SyntaxError);
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// Duplicate function parameter name.
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CheckStrictMode("function foo(a, b, c, d, b) {}", SyntaxError);
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// Function constructor: eval parameter name.
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CheckFunctionConstructorStrictMode("eval");
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// Function constructor: arguments parameter name.
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CheckFunctionConstructorStrictMode("arguments");
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// Function constructor: duplicate parameter name.
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CheckFunctionConstructorStrictMode("a", "b", "c", "b");
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CheckFunctionConstructorStrictMode("a,b,c,b");
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// catch(eval)
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CheckStrictMode("try{}catch(eval){};", SyntaxError);
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// catch(arguments)
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CheckStrictMode("try{}catch(arguments){};", SyntaxError);
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// var eval
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CheckStrictMode("var eval;", SyntaxError);
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// var arguments
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CheckStrictMode("var arguments;", SyntaxError);
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// Strict mode applies to the function in which the directive is used..
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assertThrows('\
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function foo(eval) {\
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"use strict";\
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}', SyntaxError);
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// Strict mode doesn't affect the outer stop of strict code.
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(function NotStrict(eval) {
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function Strict() {
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"use strict";
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}
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with ({}) {};
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})();
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// Octal literal
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CheckStrictMode("var x = 012");
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CheckStrictMode("012");
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CheckStrictMode("'Hello octal\\032'");
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CheckStrictMode("function octal() { return 012; }");
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CheckStrictMode("function octal() { return '\\032'; }");
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(function ValidEscape() {
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"use strict";
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var x = '\0';
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var y = "\0";
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})();
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// Octal before "use strict"
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assertThrows('\
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function strict() {\
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"octal\\032directive";\
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"use strict";\
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}', SyntaxError);
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// Duplicate data properties.
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CheckStrictMode("var x = { dupe : 1, nondupe: 3, dupe : 2 };", SyntaxError);
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CheckStrictMode("var x = { '1234' : 1, '2345' : 2, '1234' : 3 };", SyntaxError);
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CheckStrictMode("var x = { '1234' : 1, '2345' : 2, 1234 : 3 };", SyntaxError);
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CheckStrictMode("var x = { 3.14 : 1, 2.71 : 2, 3.14 : 3 };", SyntaxError);
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CheckStrictMode("var x = { 3.14 : 1, '3.14' : 2 };", SyntaxError);
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CheckStrictMode("var x = { \
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123: 1, \
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123.00000000000000000000000000000000000000000000000000000000000000000001: 2 \
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}", SyntaxError);
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// Non-conflicting data properties.
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(function StrictModeNonDuplicate() {
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"use strict";
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var x = { 123 : 1, "0123" : 2 };
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var x = {
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123: 1,
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'123.00000000000000000000000000000000000000000000000000000000000000000001':
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2
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};
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})();
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// Two getters (non-strict)
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assertThrows("var x = { get foo() { }, get foo() { } };", SyntaxError);
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assertThrows("var x = { get foo(){}, get 'foo'(){}};", SyntaxError);
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assertThrows("var x = { get 12(){}, get '12'(){}};", SyntaxError);
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// Two setters (non-strict)
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assertThrows("var x = { set foo(v) { }, set foo(v) { } };", SyntaxError);
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assertThrows("var x = { set foo(v) { }, set 'foo'(v) { } };", SyntaxError);
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assertThrows("var x = { set 13(v) { }, set '13'(v) { } };", SyntaxError);
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// Setter and data (non-strict)
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assertThrows("var x = { foo: 'data', set foo(v) { } };", SyntaxError);
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assertThrows("var x = { set foo(v) { }, foo: 'data' };", SyntaxError);
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assertThrows("var x = { foo: 'data', set 'foo'(v) { } };", SyntaxError);
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assertThrows("var x = { set foo(v) { }, 'foo': 'data' };", SyntaxError);
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assertThrows("var x = { 'foo': 'data', set foo(v) { } };", SyntaxError);
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assertThrows("var x = { set 'foo'(v) { }, foo: 'data' };", SyntaxError);
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assertThrows("var x = { 'foo': 'data', set 'foo'(v) { } };", SyntaxError);
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assertThrows("var x = { set 'foo'(v) { }, 'foo': 'data' };", SyntaxError);
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assertThrows("var x = { 12: 1, set '12'(v){}};", SyntaxError);
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assertThrows("var x = { 12: 1, set 12(v){}};", SyntaxError);
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assertThrows("var x = { '12': 1, set '12'(v){}};", SyntaxError);
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assertThrows("var x = { '12': 1, set 12(v){}};", SyntaxError);
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// Getter and data (non-strict)
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assertThrows("var x = { foo: 'data', get foo() { } };", SyntaxError);
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assertThrows("var x = { get foo() { }, foo: 'data' };", SyntaxError);
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assertThrows("var x = { 'foo': 'data', get foo() { } };", SyntaxError);
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assertThrows("var x = { get 'foo'() { }, 'foo': 'data' };", SyntaxError);
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assertThrows("var x = { '12': 1, get '12'(){}};", SyntaxError);
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assertThrows("var x = { '12': 1, get 12(){}};", SyntaxError);
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// Assignment to eval or arguments
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CheckStrictMode("function strict() { eval = undefined; }", SyntaxError);
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CheckStrictMode("function strict() { arguments = undefined; }", SyntaxError);
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CheckStrictMode("function strict() { print(eval = undefined); }", SyntaxError);
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CheckStrictMode("function strict() { print(arguments = undefined); }",
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SyntaxError);
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CheckStrictMode("function strict() { var x = eval = undefined; }", SyntaxError);
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CheckStrictMode("function strict() { var x = arguments = undefined; }",
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SyntaxError);
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// Compound assignment to eval or arguments
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CheckStrictMode("function strict() { eval *= undefined; }", SyntaxError);
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CheckStrictMode("function strict() { arguments /= undefined; }", SyntaxError);
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CheckStrictMode("function strict() { print(eval %= undefined); }", SyntaxError);
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CheckStrictMode("function strict() { print(arguments %= undefined); }",
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SyntaxError);
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CheckStrictMode("function strict() { var x = eval += undefined; }",
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SyntaxError);
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CheckStrictMode("function strict() { var x = arguments -= undefined; }",
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SyntaxError);
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CheckStrictMode("function strict() { eval <<= undefined; }", SyntaxError);
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CheckStrictMode("function strict() { arguments >>= undefined; }", SyntaxError);
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CheckStrictMode("function strict() { print(eval >>>= undefined); }",
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SyntaxError);
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CheckStrictMode("function strict() { print(arguments &= undefined); }",
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SyntaxError);
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CheckStrictMode("function strict() { var x = eval ^= undefined; }",
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SyntaxError);
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CheckStrictMode("function strict() { var x = arguments |= undefined; }",
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SyntaxError);
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// Postfix increment with eval or arguments
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CheckStrictMode("function strict() { eval++; }", SyntaxError);
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CheckStrictMode("function strict() { arguments++; }", SyntaxError);
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CheckStrictMode("function strict() { print(eval++); }", SyntaxError);
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CheckStrictMode("function strict() { print(arguments++); }", SyntaxError);
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CheckStrictMode("function strict() { var x = eval++; }", SyntaxError);
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CheckStrictMode("function strict() { var x = arguments++; }", SyntaxError);
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// Postfix decrement with eval or arguments
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CheckStrictMode("function strict() { eval--; }", SyntaxError);
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CheckStrictMode("function strict() { arguments--; }", SyntaxError);
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CheckStrictMode("function strict() { print(eval--); }", SyntaxError);
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CheckStrictMode("function strict() { print(arguments--); }", SyntaxError);
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CheckStrictMode("function strict() { var x = eval--; }", SyntaxError);
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CheckStrictMode("function strict() { var x = arguments--; }", SyntaxError);
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// Prefix increment with eval or arguments
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CheckStrictMode("function strict() { ++eval; }", SyntaxError);
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CheckStrictMode("function strict() { ++arguments; }", SyntaxError);
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CheckStrictMode("function strict() { print(++eval); }", SyntaxError);
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CheckStrictMode("function strict() { print(++arguments); }", SyntaxError);
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CheckStrictMode("function strict() { var x = ++eval; }", SyntaxError);
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CheckStrictMode("function strict() { var x = ++arguments; }", SyntaxError);
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// Prefix decrement with eval or arguments
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CheckStrictMode("function strict() { --eval; }", SyntaxError);
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CheckStrictMode("function strict() { --arguments; }", SyntaxError);
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CheckStrictMode("function strict() { print(--eval); }", SyntaxError);
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CheckStrictMode("function strict() { print(--arguments); }", SyntaxError);
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CheckStrictMode("function strict() { var x = --eval; }", SyntaxError);
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CheckStrictMode("function strict() { var x = --arguments; }", SyntaxError);
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// Use of const in strict mode is disallowed in anticipation of ES Harmony.
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CheckStrictMode("const x = 0;", SyntaxError);
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CheckStrictMode("for (const x = 0; false;) {}", SyntaxError);
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CheckStrictMode("function strict() { const x = 0; }", SyntaxError);
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// Strict mode only allows functions in SourceElements
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CheckStrictMode("if (true) { function invalid() {} }", SyntaxError);
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CheckStrictMode("for (;false;) { function invalid() {} }", SyntaxError);
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CheckStrictMode("{ function invalid() {} }", SyntaxError);
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CheckStrictMode("try { function invalid() {} } catch(e) {}", SyntaxError);
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CheckStrictMode("try { } catch(e) { function invalid() {} }", SyntaxError);
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CheckStrictMode("function outer() {{ function invalid() {} }}", SyntaxError);
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// Delete of an unqualified identifier
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CheckStrictMode("delete unqualified;", SyntaxError);
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CheckStrictMode("function strict() { delete unqualified; }", SyntaxError);
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CheckStrictMode("function function_name() { delete function_name; }",
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SyntaxError);
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CheckStrictMode("function strict(parameter) { delete parameter; }",
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SyntaxError);
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CheckStrictMode("function strict() { var variable; delete variable; }",
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SyntaxError);
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CheckStrictMode("var variable; delete variable;", SyntaxError);
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(function TestStrictDelete() {
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"use strict";
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// "delete this" is allowed in strict mode and should work.
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function strict_delete() { delete this; }
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strict_delete();
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})();
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// Prefix unary operators other than delete, ++, -- are valid in strict mode
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(function StrictModeUnaryOperators() {
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"use strict";
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var x = [void eval, typeof eval, +eval, -eval, ~eval, !eval];
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var y = [void arguments, typeof arguments,
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+arguments, -arguments, ~arguments, !arguments];
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})();
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// 7.6.1.2 Future Reserved Words in strict mode
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var future_strict_reserved_words = [
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"implements",
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"interface",
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"let",
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"package",
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"private",
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"protected",
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"public",
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"static",
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"yield" ];
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function testFutureStrictReservedWord(word) {
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// Simple use of each reserved word
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CheckStrictMode("var " + word + " = 1;", SyntaxError);
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CheckStrictMode("typeof (" + word + ");", SyntaxError);
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// object literal properties
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eval("var x = { " + word + " : 42 };");
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eval("var x = { get " + word + " () {} };");
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eval("var x = { set " + word + " (value) {} };");
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eval("var x = { get " + word + " () { 'use strict'; } };");
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eval("var x = { set " + word + " (value) { 'use strict'; } };");
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// object literal with string literal property names
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eval("var x = { '" + word + "' : 42 };");
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eval("var x = { get '" + word + "' () { } };");
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eval("var x = { set '" + word + "' (value) { } };");
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eval("var x = { get '" + word + "' () { 'use strict'; } };");
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eval("var x = { set '" + word + "' (value) { 'use strict'; } };");
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// Function names and arguments, strict and non-strict contexts
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CheckStrictMode("function " + word + " () {}", SyntaxError);
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CheckStrictMode("function foo (" + word + ") {}", SyntaxError);
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CheckStrictMode("function foo (" + word + ", " + word + ") {}", SyntaxError);
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CheckStrictMode("function foo (a, " + word + ") {}", SyntaxError);
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CheckStrictMode("function foo (" + word + ", a) {}", SyntaxError);
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CheckStrictMode("function foo (a, " + word + ", b) {}", SyntaxError);
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CheckStrictMode("var foo = function (" + word + ") {}", SyntaxError);
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// Function names and arguments when the body is strict
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assertThrows("function " + word + " () { 'use strict'; }", SyntaxError);
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assertThrows("function foo (" + word + ", " + word + ") { 'use strict'; }",
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SyntaxError);
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assertThrows("function foo (a, " + word + ") { 'use strict'; }", SyntaxError);
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assertThrows("function foo (" + word + ", a) { 'use strict'; }", SyntaxError);
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assertThrows("function foo (a, " + word + ", b) { 'use strict'; }",
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SyntaxError);
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assertThrows("var foo = function (" + word + ") { 'use strict'; }",
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SyntaxError);
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// setter parameter when the body is strict
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CheckStrictMode("var x = { set foo(" + word + ") {} };", SyntaxError);
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assertThrows("var x = { set foo(" + word + ") { 'use strict'; } };",
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SyntaxError);
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}
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for (var i = 0; i < future_strict_reserved_words.length; i++) {
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testFutureStrictReservedWord(future_strict_reserved_words[i]);
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}
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function testAssignToUndefined(test, should_throw) {
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try {
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test();
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} catch (e) {
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assertTrue(should_throw, "strict mode");
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assertInstanceof(e, ReferenceError, "strict mode");
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return;
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}
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assertFalse(should_throw, "strict mode");
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}
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function repeat(n, f) {
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for (var i = 0; i < n; i ++) { f(); }
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}
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function assignToUndefined() {
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"use strict";
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possibly_undefined_variable_for_strict_mode_test = "should throw?";
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}
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testAssignToUndefined(assignToUndefined, true);
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testAssignToUndefined(assignToUndefined, true);
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testAssignToUndefined(assignToUndefined, true);
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possibly_undefined_variable_for_strict_mode_test = "value";
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testAssignToUndefined(assignToUndefined, false);
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testAssignToUndefined(assignToUndefined, false);
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testAssignToUndefined(assignToUndefined, false);
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delete possibly_undefined_variable_for_strict_mode_test;
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testAssignToUndefined(assignToUndefined, true);
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testAssignToUndefined(assignToUndefined, true);
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testAssignToUndefined(assignToUndefined, true);
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repeat(10, function() { testAssignToUndefined(assignToUndefined, true); });
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possibly_undefined_variable_for_strict_mode_test = "value";
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repeat(10, function() { testAssignToUndefined(assignToUndefined, false); });
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delete possibly_undefined_variable_for_strict_mode_test;
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repeat(10, function() { testAssignToUndefined(assignToUndefined, true); });
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possibly_undefined_variable_for_strict_mode_test = undefined;
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repeat(10, function() { testAssignToUndefined(assignToUndefined, false); });
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function assignToUndefinedWithEval() {
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"use strict";
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possibly_undefined_variable_for_strict_mode_test_with_eval = "should throw?";
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eval("");
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}
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testAssignToUndefined(assignToUndefinedWithEval, true);
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testAssignToUndefined(assignToUndefinedWithEval, true);
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testAssignToUndefined(assignToUndefinedWithEval, true);
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possibly_undefined_variable_for_strict_mode_test_with_eval = "value";
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|
|
testAssignToUndefined(assignToUndefinedWithEval, false);
|
|
testAssignToUndefined(assignToUndefinedWithEval, false);
|
|
testAssignToUndefined(assignToUndefinedWithEval, false);
|
|
|
|
delete possibly_undefined_variable_for_strict_mode_test_with_eval;
|
|
|
|
testAssignToUndefined(assignToUndefinedWithEval, true);
|
|
testAssignToUndefined(assignToUndefinedWithEval, true);
|
|
testAssignToUndefined(assignToUndefinedWithEval, true);
|
|
|
|
repeat(10, function() {
|
|
testAssignToUndefined(assignToUndefinedWithEval, true);
|
|
});
|
|
possibly_undefined_variable_for_strict_mode_test_with_eval = "value";
|
|
repeat(10, function() {
|
|
testAssignToUndefined(assignToUndefinedWithEval, false);
|
|
});
|
|
delete possibly_undefined_variable_for_strict_mode_test_with_eval;
|
|
repeat(10, function() {
|
|
testAssignToUndefined(assignToUndefinedWithEval, true);
|
|
});
|
|
possibly_undefined_variable_for_strict_mode_test_with_eval = undefined;
|
|
repeat(10, function() {
|
|
testAssignToUndefined(assignToUndefinedWithEval, false);
|
|
});
|
|
|
|
|
|
|
|
(function testDeleteNonConfigurable() {
|
|
function delete_property(o) {
|
|
"use strict";
|
|
delete o.property;
|
|
}
|
|
function delete_element(o, i) {
|
|
"use strict";
|
|
delete o[i];
|
|
}
|
|
|
|
var object = {};
|
|
|
|
Object.defineProperty(object, "property", { value: "property_value" });
|
|
Object.defineProperty(object, "1", { value: "one" });
|
|
Object.defineProperty(object, 7, { value: "seven" });
|
|
Object.defineProperty(object, 3.14, { value: "pi" });
|
|
|
|
assertThrows(function() { delete_property(object); }, TypeError);
|
|
assertEquals(object.property, "property_value");
|
|
assertThrows(function() { delete_element(object, "1"); }, TypeError);
|
|
assertThrows(function() { delete_element(object, 1); }, TypeError);
|
|
assertEquals(object[1], "one");
|
|
assertThrows(function() { delete_element(object, "7"); }, TypeError);
|
|
assertThrows(function() { delete_element(object, 7); }, TypeError);
|
|
assertEquals(object[7], "seven");
|
|
assertThrows(function() { delete_element(object, "3.14"); }, TypeError);
|
|
assertThrows(function() { delete_element(object, 3.14); }, TypeError);
|
|
assertEquals(object[3.14], "pi");
|
|
})();
|
|
|
|
// Not transforming this in Function.call and Function.apply.
|
|
(function testThisTransformCallApply() {
|
|
function non_strict() {
|
|
return this;
|
|
}
|
|
function strict() {
|
|
"use strict";
|
|
return this;
|
|
}
|
|
|
|
var global_object = (function() { return this; })();
|
|
var object = {};
|
|
|
|
// Non-strict call.
|
|
assertTrue(non_strict.call(null) === global_object);
|
|
assertTrue(non_strict.call(undefined) === global_object);
|
|
assertEquals(typeof non_strict.call(7), "object");
|
|
assertEquals(typeof non_strict.call("Hello"), "object");
|
|
assertTrue(non_strict.call(object) === object);
|
|
|
|
// Non-strict apply.
|
|
assertTrue(non_strict.apply(null) === global_object);
|
|
assertTrue(non_strict.apply(undefined) === global_object);
|
|
assertEquals(typeof non_strict.apply(7), "object");
|
|
assertEquals(typeof non_strict.apply("Hello"), "object");
|
|
assertTrue(non_strict.apply(object) === object);
|
|
|
|
// Strict call.
|
|
assertTrue(strict.call(null) === null);
|
|
assertTrue(strict.call(undefined) === undefined);
|
|
assertEquals(typeof strict.call(7), "number");
|
|
assertEquals(typeof strict.call("Hello"), "string");
|
|
assertTrue(strict.call(object) === object);
|
|
|
|
// Strict apply.
|
|
assertTrue(strict.apply(null) === null);
|
|
assertTrue(strict.apply(undefined) === undefined);
|
|
assertEquals(typeof strict.apply(7), "number");
|
|
assertEquals(typeof strict.apply("Hello"), "string");
|
|
assertTrue(strict.apply(object) === object);
|
|
})();
|
|
|
|
(function testThisTransform() {
|
|
try {
|
|
function strict() {
|
|
"use strict";
|
|
return typeof(this);
|
|
}
|
|
function nonstrict() {
|
|
return typeof(this);
|
|
}
|
|
|
|
// Concat to avoid symbol.
|
|
var strict_name = "str" + "ict";
|
|
var nonstrict_name = "non" + "str" + "ict";
|
|
var strict_number = 17;
|
|
var nonstrict_number = 19;
|
|
var strict_name_get = "str" + "ict" + "get";
|
|
var nonstrict_name_get = "non" + "str" + "ict" + "get"
|
|
var strict_number_get = 23;
|
|
var nonstrict_number_get = 29;
|
|
|
|
function install(t) {
|
|
t.prototype.strict = strict;
|
|
t.prototype.nonstrict = nonstrict;
|
|
t.prototype[strict_number] = strict;
|
|
t.prototype[nonstrict_number] = nonstrict;
|
|
Object.defineProperty(t.prototype, strict_name_get,
|
|
{ get: function() { return strict; },
|
|
configurable: true });
|
|
Object.defineProperty(t.prototype, nonstrict_name_get,
|
|
{ get: function() { return nonstrict; },
|
|
configurable: true });
|
|
Object.defineProperty(t.prototype, strict_number_get,
|
|
{ get: function() { return strict; },
|
|
configurable: true });
|
|
Object.defineProperty(t.prototype, nonstrict_number_get,
|
|
{ get: function() { return nonstrict; },
|
|
configurable: true });
|
|
}
|
|
|
|
function cleanup(t) {
|
|
delete t.prototype.strict;
|
|
delete t.prototype.nonstrict;
|
|
delete t.prototype[strict_number];
|
|
delete t.prototype[nonstrict_number];
|
|
delete t.prototype[strict_name_get];
|
|
delete t.prototype[nonstrict_name_get];
|
|
delete t.prototype[strict_number_get];
|
|
delete t.prototype[nonstrict_number_get];
|
|
}
|
|
|
|
// Set up fakes
|
|
install(String);
|
|
install(Number);
|
|
install(Boolean)
|
|
|
|
function callStrict(o) {
|
|
return o.strict();
|
|
}
|
|
function callNonStrict(o) {
|
|
return o.nonstrict();
|
|
}
|
|
function callKeyedStrict(o) {
|
|
return o[strict_name]();
|
|
}
|
|
function callKeyedNonStrict(o) {
|
|
return o[nonstrict_name]();
|
|
}
|
|
function callIndexedStrict(o) {
|
|
return o[strict_number]();
|
|
}
|
|
function callIndexedNonStrict(o) {
|
|
return o[nonstrict_number]();
|
|
}
|
|
function callStrictGet(o) {
|
|
return o.strictget();
|
|
}
|
|
function callNonStrictGet(o) {
|
|
return o.nonstrictget();
|
|
}
|
|
function callKeyedStrictGet(o) {
|
|
return o[strict_name_get]();
|
|
}
|
|
function callKeyedNonStrictGet(o) {
|
|
return o[nonstrict_name_get]();
|
|
}
|
|
function callIndexedStrictGet(o) {
|
|
return o[strict_number_get]();
|
|
}
|
|
function callIndexedNonStrictGet(o) {
|
|
return o[nonstrict_number_get]();
|
|
}
|
|
|
|
for (var i = 0; i < 10; i ++) {
|
|
assertEquals(("hello").strict(), "string");
|
|
assertEquals(("hello").nonstrict(), "object");
|
|
assertEquals(("hello")[strict_name](), "string");
|
|
assertEquals(("hello")[nonstrict_name](), "object");
|
|
assertEquals(("hello")[strict_number](), "string");
|
|
assertEquals(("hello")[nonstrict_number](), "object");
|
|
|
|
assertEquals((10 + i).strict(), "number");
|
|
assertEquals((10 + i).nonstrict(), "object");
|
|
assertEquals((10 + i)[strict_name](), "number");
|
|
assertEquals((10 + i)[nonstrict_name](), "object");
|
|
assertEquals((10 + i)[strict_number](), "number");
|
|
assertEquals((10 + i)[nonstrict_number](), "object");
|
|
|
|
assertEquals((true).strict(), "boolean");
|
|
assertEquals((true).nonstrict(), "object");
|
|
assertEquals((true)[strict_name](), "boolean");
|
|
assertEquals((true)[nonstrict_name](), "object");
|
|
assertEquals((true)[strict_number](), "boolean");
|
|
assertEquals((true)[nonstrict_number](), "object");
|
|
|
|
assertEquals((false).strict(), "boolean");
|
|
assertEquals((false).nonstrict(), "object");
|
|
assertEquals((false)[strict_name](), "boolean");
|
|
assertEquals((false)[nonstrict_name](), "object");
|
|
assertEquals((false)[strict_number](), "boolean");
|
|
assertEquals((false)[nonstrict_number](), "object");
|
|
|
|
assertEquals(callStrict("howdy"), "string");
|
|
assertEquals(callNonStrict("howdy"), "object");
|
|
assertEquals(callKeyedStrict("howdy"), "string");
|
|
assertEquals(callKeyedNonStrict("howdy"), "object");
|
|
assertEquals(callIndexedStrict("howdy"), "string");
|
|
assertEquals(callIndexedNonStrict("howdy"), "object");
|
|
|
|
assertEquals(callStrict(17 + i), "number");
|
|
assertEquals(callNonStrict(17 + i), "object");
|
|
assertEquals(callKeyedStrict(17 + i), "number");
|
|
assertEquals(callKeyedNonStrict(17 + i), "object");
|
|
assertEquals(callIndexedStrict(17 + i), "number");
|
|
assertEquals(callIndexedNonStrict(17 + i), "object");
|
|
|
|
assertEquals(callStrict(true), "boolean");
|
|
assertEquals(callNonStrict(true), "object");
|
|
assertEquals(callKeyedStrict(true), "boolean");
|
|
assertEquals(callKeyedNonStrict(true), "object");
|
|
assertEquals(callIndexedStrict(true), "boolean");
|
|
assertEquals(callIndexedNonStrict(true), "object");
|
|
|
|
assertEquals(callStrict(false), "boolean");
|
|
assertEquals(callNonStrict(false), "object");
|
|
assertEquals(callKeyedStrict(false), "boolean");
|
|
assertEquals(callKeyedNonStrict(false), "object");
|
|
assertEquals(callIndexedStrict(false), "boolean");
|
|
assertEquals(callIndexedNonStrict(false), "object");
|
|
|
|
// All of the above, with getters
|
|
assertEquals(("hello").strictget(), "string");
|
|
assertEquals(("hello").nonstrictget(), "object");
|
|
assertEquals(("hello")[strict_name_get](), "string");
|
|
assertEquals(("hello")[nonstrict_name_get](), "object");
|
|
assertEquals(("hello")[strict_number_get](), "string");
|
|
assertEquals(("hello")[nonstrict_number_get](), "object");
|
|
|
|
assertEquals((10 + i).strictget(), "number");
|
|
assertEquals((10 + i).nonstrictget(), "object");
|
|
assertEquals((10 + i)[strict_name_get](), "number");
|
|
assertEquals((10 + i)[nonstrict_name_get](), "object");
|
|
assertEquals((10 + i)[strict_number_get](), "number");
|
|
assertEquals((10 + i)[nonstrict_number_get](), "object");
|
|
|
|
assertEquals((true).strictget(), "boolean");
|
|
assertEquals((true).nonstrictget(), "object");
|
|
assertEquals((true)[strict_name_get](), "boolean");
|
|
assertEquals((true)[nonstrict_name_get](), "object");
|
|
assertEquals((true)[strict_number_get](), "boolean");
|
|
assertEquals((true)[nonstrict_number_get](), "object");
|
|
|
|
assertEquals((false).strictget(), "boolean");
|
|
assertEquals((false).nonstrictget(), "object");
|
|
assertEquals((false)[strict_name_get](), "boolean");
|
|
assertEquals((false)[nonstrict_name_get](), "object");
|
|
assertEquals((false)[strict_number_get](), "boolean");
|
|
assertEquals((false)[nonstrict_number_get](), "object");
|
|
|
|
assertEquals(callStrictGet("howdy"), "string");
|
|
assertEquals(callNonStrictGet("howdy"), "object");
|
|
assertEquals(callKeyedStrictGet("howdy"), "string");
|
|
assertEquals(callKeyedNonStrictGet("howdy"), "object");
|
|
assertEquals(callIndexedStrictGet("howdy"), "string");
|
|
assertEquals(callIndexedNonStrictGet("howdy"), "object");
|
|
|
|
assertEquals(callStrictGet(17 + i), "number");
|
|
assertEquals(callNonStrictGet(17 + i), "object");
|
|
assertEquals(callKeyedStrictGet(17 + i), "number");
|
|
assertEquals(callKeyedNonStrictGet(17 + i), "object");
|
|
assertEquals(callIndexedStrictGet(17 + i), "number");
|
|
assertEquals(callIndexedNonStrictGet(17 + i), "object");
|
|
|
|
assertEquals(callStrictGet(true), "boolean");
|
|
assertEquals(callNonStrictGet(true), "object");
|
|
assertEquals(callKeyedStrictGet(true), "boolean");
|
|
assertEquals(callKeyedNonStrictGet(true), "object");
|
|
assertEquals(callIndexedStrictGet(true), "boolean");
|
|
assertEquals(callIndexedNonStrictGet(true), "object");
|
|
|
|
assertEquals(callStrictGet(false), "boolean");
|
|
assertEquals(callNonStrictGet(false), "object");
|
|
assertEquals(callKeyedStrictGet(false), "boolean");
|
|
assertEquals(callKeyedNonStrictGet(false), "object");
|
|
assertEquals(callIndexedStrictGet(false), "boolean");
|
|
assertEquals(callIndexedNonStrictGet(false), "object");
|
|
|
|
}
|
|
} finally {
|
|
// Cleanup
|
|
cleanup(String);
|
|
cleanup(Number);
|
|
cleanup(Boolean);
|
|
}
|
|
})();
|
|
|
|
|
|
(function ObjectEnvironment() {
|
|
var o = {};
|
|
Object.defineProperty(o, "foo", { value: "FOO", writable: false });
|
|
assertThrows(
|
|
function () {
|
|
with (o) {
|
|
(function() {
|
|
"use strict";
|
|
foo = "Hello";
|
|
})();
|
|
}
|
|
},
|
|
TypeError);
|
|
})();
|
|
|
|
|
|
(function TestSetPropertyWithoutSetter() {
|
|
var o = { get foo() { return "Yey"; } };
|
|
assertThrows(
|
|
function broken() {
|
|
"use strict";
|
|
o.foo = (0xBADBAD00 >> 1);
|
|
},
|
|
TypeError);
|
|
})();
|
|
|
|
|
|
(function TestSetPropertyNonConfigurable() {
|
|
var frozen = Object.freeze({});
|
|
var sealed = Object.seal({});
|
|
|
|
function strict(o) {
|
|
"use strict";
|
|
o.property = "value";
|
|
}
|
|
|
|
assertThrows(function() { strict(frozen); }, TypeError);
|
|
assertThrows(function() { strict(sealed); }, TypeError);
|
|
})();
|
|
|
|
|
|
(function TestAssignmentToReadOnlyProperty() {
|
|
"use strict";
|
|
|
|
var o = {};
|
|
Object.defineProperty(o, "property", { value: 7 });
|
|
|
|
assertThrows(function() { o.property = "new value"; }, TypeError);
|
|
assertThrows(function() { o.property += 10; }, TypeError);
|
|
assertThrows(function() { o.property -= 10; }, TypeError);
|
|
assertThrows(function() { o.property *= 10; }, TypeError);
|
|
assertThrows(function() { o.property /= 10; }, TypeError);
|
|
assertThrows(function() { o.property++; }, TypeError);
|
|
assertThrows(function() { o.property--; }, TypeError);
|
|
assertThrows(function() { ++o.property; }, TypeError);
|
|
assertThrows(function() { --o.property; }, TypeError);
|
|
|
|
var name = "prop" + "erty"; // to avoid symbol path.
|
|
assertThrows(function() { o[name] = "new value"; }, TypeError);
|
|
assertThrows(function() { o[name] += 10; }, TypeError);
|
|
assertThrows(function() { o[name] -= 10; }, TypeError);
|
|
assertThrows(function() { o[name] *= 10; }, TypeError);
|
|
assertThrows(function() { o[name] /= 10; }, TypeError);
|
|
assertThrows(function() { o[name]++; }, TypeError);
|
|
assertThrows(function() { o[name]--; }, TypeError);
|
|
assertThrows(function() { ++o[name]; }, TypeError);
|
|
assertThrows(function() { --o[name]; }, TypeError);
|
|
|
|
assertEquals(o.property, 7);
|
|
})();
|
|
|
|
|
|
(function TestAssignmentToReadOnlyLoop() {
|
|
var name = "prop" + "erty"; // to avoid symbol path.
|
|
var o = {};
|
|
Object.defineProperty(o, "property", { value: 7 });
|
|
|
|
function strict(o, name) {
|
|
"use strict";
|
|
o[name] = "new value";
|
|
}
|
|
|
|
for (var i = 0; i < 10; i ++) {
|
|
var exception = false;
|
|
try {
|
|
strict(o, name);
|
|
} catch(e) {
|
|
exception = true;
|
|
assertInstanceof(e, TypeError);
|
|
}
|
|
assertTrue(exception);
|
|
}
|
|
})();
|
|
|
|
|
|
// Specialized KeyedStoreIC experiencing miss.
|
|
(function testKeyedStoreICStrict() {
|
|
var o = [9,8,7,6,5,4,3,2,1];
|
|
|
|
function test(o, i, v) {
|
|
"use strict";
|
|
o[i] = v;
|
|
}
|
|
|
|
for (var i = 0; i < 10; i ++) {
|
|
test(o, 5, 17); // start specialized for smi indices
|
|
assertEquals(o[5], 17);
|
|
test(o, "a", 19);
|
|
assertEquals(o["a"], 19);
|
|
test(o, "5", 29);
|
|
assertEquals(o[5], 29);
|
|
test(o, 100000, 31);
|
|
assertEquals(o[100000], 31);
|
|
}
|
|
})();
|
|
|
|
|
|
(function TestSetElementWithoutSetter() {
|
|
"use strict";
|
|
|
|
var o = { };
|
|
Object.defineProperty(o, 0, { get : function() { } });
|
|
|
|
var zero_smi = 0;
|
|
var zero_number = new Number(0);
|
|
var zero_symbol = "0";
|
|
var zero_string = "-0-".substring(1,2);
|
|
|
|
assertThrows(function() { o[zero_smi] = "new value"; }, TypeError);
|
|
assertThrows(function() { o[zero_number] = "new value"; }, TypeError);
|
|
assertThrows(function() { o[zero_symbol] = "new value"; }, TypeError);
|
|
assertThrows(function() { o[zero_string] = "new value"; }, TypeError);
|
|
})();
|
|
|
|
|
|
(function TestSetElementNonConfigurable() {
|
|
"use strict";
|
|
var frozen = Object.freeze({});
|
|
var sealed = Object.seal({});
|
|
|
|
var zero_number = 0;
|
|
var zero_symbol = "0";
|
|
var zero_string = "-0-".substring(1,2);
|
|
|
|
assertThrows(function() { frozen[zero_number] = "value"; }, TypeError);
|
|
assertThrows(function() { sealed[zero_number] = "value"; }, TypeError);
|
|
assertThrows(function() { frozen[zero_symbol] = "value"; }, TypeError);
|
|
assertThrows(function() { sealed[zero_symbol] = "value"; }, TypeError);
|
|
assertThrows(function() { frozen[zero_string] = "value"; }, TypeError);
|
|
assertThrows(function() { sealed[zero_string] = "value"; }, TypeError);
|
|
})();
|
|
|
|
|
|
(function TestAssignmentToReadOnlyElement() {
|
|
"use strict";
|
|
|
|
var o = {};
|
|
Object.defineProperty(o, 7, { value: 17 });
|
|
|
|
var seven_smi = 7;
|
|
var seven_number = new Number(7);
|
|
var seven_symbol = "7";
|
|
var seven_string = "-7-".substring(1,2);
|
|
|
|
// Index with number.
|
|
assertThrows(function() { o[seven_smi] = "value"; }, TypeError);
|
|
assertThrows(function() { o[seven_smi] += 10; }, TypeError);
|
|
assertThrows(function() { o[seven_smi] -= 10; }, TypeError);
|
|
assertThrows(function() { o[seven_smi] *= 10; }, TypeError);
|
|
assertThrows(function() { o[seven_smi] /= 10; }, TypeError);
|
|
assertThrows(function() { o[seven_smi]++; }, TypeError);
|
|
assertThrows(function() { o[seven_smi]--; }, TypeError);
|
|
assertThrows(function() { ++o[seven_smi]; }, TypeError);
|
|
assertThrows(function() { --o[seven_smi]; }, TypeError);
|
|
|
|
assertThrows(function() { o[seven_number] = "value"; }, TypeError);
|
|
assertThrows(function() { o[seven_number] += 10; }, TypeError);
|
|
assertThrows(function() { o[seven_number] -= 10; }, TypeError);
|
|
assertThrows(function() { o[seven_number] *= 10; }, TypeError);
|
|
assertThrows(function() { o[seven_number] /= 10; }, TypeError);
|
|
assertThrows(function() { o[seven_number]++; }, TypeError);
|
|
assertThrows(function() { o[seven_number]--; }, TypeError);
|
|
assertThrows(function() { ++o[seven_number]; }, TypeError);
|
|
assertThrows(function() { --o[seven_number]; }, TypeError);
|
|
|
|
assertThrows(function() { o[seven_symbol] = "value"; }, TypeError);
|
|
assertThrows(function() { o[seven_symbol] += 10; }, TypeError);
|
|
assertThrows(function() { o[seven_symbol] -= 10; }, TypeError);
|
|
assertThrows(function() { o[seven_symbol] *= 10; }, TypeError);
|
|
assertThrows(function() { o[seven_symbol] /= 10; }, TypeError);
|
|
assertThrows(function() { o[seven_symbol]++; }, TypeError);
|
|
assertThrows(function() { o[seven_symbol]--; }, TypeError);
|
|
assertThrows(function() { ++o[seven_symbol]; }, TypeError);
|
|
assertThrows(function() { --o[seven_symbol]; }, TypeError);
|
|
|
|
assertThrows(function() { o[seven_string] = "value"; }, TypeError);
|
|
assertThrows(function() { o[seven_string] += 10; }, TypeError);
|
|
assertThrows(function() { o[seven_string] -= 10; }, TypeError);
|
|
assertThrows(function() { o[seven_string] *= 10; }, TypeError);
|
|
assertThrows(function() { o[seven_string] /= 10; }, TypeError);
|
|
assertThrows(function() { o[seven_string]++; }, TypeError);
|
|
assertThrows(function() { o[seven_string]--; }, TypeError);
|
|
assertThrows(function() { ++o[seven_string]; }, TypeError);
|
|
assertThrows(function() { --o[seven_string]; }, TypeError);
|
|
|
|
assertEquals(o[seven_number], 17);
|
|
assertEquals(o[seven_symbol], 17);
|
|
assertEquals(o[seven_string], 17);
|
|
})();
|
|
|
|
|
|
(function TestAssignmentToReadOnlyLoop() {
|
|
"use strict";
|
|
|
|
var o = {};
|
|
Object.defineProperty(o, 7, { value: 17 });
|
|
|
|
var seven_smi = 7;
|
|
var seven_number = new Number(7);
|
|
var seven_symbol = "7";
|
|
var seven_string = "-7-".substring(1,2);
|
|
|
|
for (var i = 0; i < 10; i ++) {
|
|
assertThrows(function() { o[seven_smi] = "value" }, TypeError);
|
|
assertThrows(function() { o[seven_number] = "value" }, TypeError);
|
|
assertThrows(function() { o[seven_symbol] = "value" }, TypeError);
|
|
assertThrows(function() { o[seven_string] = "value" }, TypeError);
|
|
}
|
|
|
|
assertEquals(o[7], 17);
|
|
})();
|
|
|
|
|
|
(function TestAssignmentToStringLength() {
|
|
"use strict";
|
|
|
|
var str_val = "string";
|
|
var str_obj = new String(str_val);
|
|
var str_cat = str_val + str_val + str_obj;
|
|
|
|
assertThrows(function() { str_val.length = 1; }, TypeError);
|
|
assertThrows(function() { str_obj.length = 1; }, TypeError);
|
|
assertThrows(function() { str_cat.length = 1; }, TypeError);
|
|
})();
|
|
|
|
|
|
(function TestArgumentsAliasing() {
|
|
function strict(a, b) {
|
|
"use strict";
|
|
a = "c";
|
|
b = "d";
|
|
return [a, b, arguments[0], arguments[1]];
|
|
}
|
|
|
|
function nonstrict(a, b) {
|
|
a = "c";
|
|
b = "d";
|
|
return [a, b, arguments[0], arguments[1]];
|
|
}
|
|
|
|
assertEquals(["c", "d", "a", "b"], strict("a", "b"));
|
|
assertEquals(["c", "d", "c", "d"], nonstrict("a", "b"));
|
|
})();
|
|
|
|
|
|
function CheckPillDescriptor(func, name) {
|
|
|
|
function CheckPill(pill) {
|
|
assertEquals("function", typeof pill);
|
|
assertInstanceof(pill, Function);
|
|
pill.property = "value";
|
|
assertEquals(pill.value, undefined);
|
|
assertThrows(function() { 'use strict'; pill.property = "value"; },
|
|
TypeError);
|
|
assertThrows(pill, TypeError);
|
|
assertEquals(pill.prototype, (function(){}).prototype);
|
|
var d = Object.getOwnPropertyDescriptor(pill, "prototype");
|
|
assertFalse(d.writable);
|
|
assertFalse(d.configurable);
|
|
assertFalse(d.enumerable);
|
|
}
|
|
|
|
var descriptor = Object.getOwnPropertyDescriptor(func, name);
|
|
CheckPill(descriptor.get)
|
|
CheckPill(descriptor.set);
|
|
assertFalse(descriptor.enumerable);
|
|
assertFalse(descriptor.configurable);
|
|
}
|
|
|
|
|
|
(function TestStrictFunctionPills() {
|
|
function strict() {
|
|
"use strict";
|
|
}
|
|
assertThrows(function() { strict.caller; }, TypeError);
|
|
assertThrows(function() { strict.arguments; }, TypeError);
|
|
assertThrows(function() { strict.caller = 42; }, TypeError);
|
|
assertThrows(function() { strict.arguments = 42; }, TypeError);
|
|
|
|
var another = new Function("'use strict'");
|
|
assertThrows(function() { another.caller; }, TypeError);
|
|
assertThrows(function() { another.arguments; }, TypeError);
|
|
assertThrows(function() { another.caller = 42; }, TypeError);
|
|
assertThrows(function() { another.arguments = 42; }, TypeError);
|
|
|
|
var third = (function() { "use strict"; return function() {}; })();
|
|
assertThrows(function() { third.caller; }, TypeError);
|
|
assertThrows(function() { third.arguments; }, TypeError);
|
|
assertThrows(function() { third.caller = 42; }, TypeError);
|
|
assertThrows(function() { third.arguments = 42; }, TypeError);
|
|
|
|
CheckPillDescriptor(strict, "caller");
|
|
CheckPillDescriptor(strict, "arguments");
|
|
CheckPillDescriptor(another, "caller");
|
|
CheckPillDescriptor(another, "arguments");
|
|
CheckPillDescriptor(third, "caller");
|
|
CheckPillDescriptor(third, "arguments");
|
|
})();
|
|
|
|
|
|
(function TestStrictFunctionWritablePrototype() {
|
|
"use strict";
|
|
function TheClass() {
|
|
}
|
|
assertThrows(function() { TheClass.caller; }, TypeError);
|
|
assertThrows(function() { TheClass.arguments; }, TypeError);
|
|
|
|
// Strict functions must have writable prototype.
|
|
TheClass.prototype = {
|
|
func: function() { return "func_value"; },
|
|
get accessor() { return "accessor_value"; },
|
|
property: "property_value",
|
|
};
|
|
|
|
var o = new TheClass();
|
|
assertEquals(o.func(), "func_value");
|
|
assertEquals(o.accessor, "accessor_value");
|
|
assertEquals(o.property, "property_value");
|
|
})();
|
|
|
|
|
|
(function TestStrictArgumentPills() {
|
|
function strict() {
|
|
"use strict";
|
|
return arguments;
|
|
}
|
|
|
|
var args = strict();
|
|
CheckPillDescriptor(args, "caller");
|
|
CheckPillDescriptor(args, "callee");
|
|
|
|
args = strict(17, "value", strict);
|
|
assertEquals(17, args[0])
|
|
assertEquals("value", args[1])
|
|
assertEquals(strict, args[2]);
|
|
CheckPillDescriptor(args, "caller");
|
|
CheckPillDescriptor(args, "callee");
|
|
|
|
function outer() {
|
|
"use strict";
|
|
function inner() {
|
|
return arguments;
|
|
}
|
|
return inner;
|
|
}
|
|
|
|
var args = outer()();
|
|
CheckPillDescriptor(args, "caller");
|
|
CheckPillDescriptor(args, "callee");
|
|
|
|
args = outer()(17, "value", strict);
|
|
assertEquals(17, args[0])
|
|
assertEquals("value", args[1])
|
|
assertEquals(strict, args[2]);
|
|
CheckPillDescriptor(args, "caller");
|
|
CheckPillDescriptor(args, "callee");
|
|
})();
|
|
|
|
|
|
(function TestNonStrictFunctionCallerPillSimple() {
|
|
function return_my_caller() {
|
|
return return_my_caller.caller;
|
|
}
|
|
|
|
function strict() {
|
|
"use strict";
|
|
return return_my_caller();
|
|
}
|
|
assertSame(null, strict());
|
|
|
|
function non_strict() {
|
|
return return_my_caller();
|
|
}
|
|
assertSame(non_strict(), non_strict);
|
|
})();
|
|
|
|
|
|
(function TestNonStrictFunctionCallerPill() {
|
|
function strict(n) {
|
|
"use strict";
|
|
return non_strict(n);
|
|
}
|
|
|
|
function recurse(n, then) {
|
|
if (n > 0) {
|
|
return recurse(n - 1, then);
|
|
} else {
|
|
return then();
|
|
}
|
|
}
|
|
|
|
function non_strict(n) {
|
|
return recurse(n, function() { return non_strict.caller; });
|
|
}
|
|
|
|
function test(n) {
|
|
return recurse(n, function() { return strict(n); });
|
|
}
|
|
|
|
for (var i = 0; i < 10; i ++) {
|
|
assertSame(null, test(i));
|
|
}
|
|
})();
|
|
|
|
|
|
(function TestNonStrictFunctionCallerDescriptorPill() {
|
|
function strict(n) {
|
|
"use strict";
|
|
return non_strict(n);
|
|
}
|
|
|
|
function recurse(n, then) {
|
|
if (n > 0) {
|
|
return recurse(n - 1, then);
|
|
} else {
|
|
return then();
|
|
}
|
|
}
|
|
|
|
function non_strict(n) {
|
|
return recurse(n, function() {
|
|
return Object.getOwnPropertyDescriptor(non_strict, "caller").value;
|
|
});
|
|
}
|
|
|
|
function test(n) {
|
|
return recurse(n, function() { return strict(n); });
|
|
}
|
|
|
|
for (var i = 0; i < 10; i ++) {
|
|
assertSame(null, test(i));
|
|
}
|
|
})();
|
|
|
|
|
|
(function TestStrictModeEval() {
|
|
"use strict";
|
|
eval("var eval_local = 10;");
|
|
assertThrows(function() { return eval_local; }, ReferenceError);
|
|
})();
|
|
|