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1// Copyright 2015 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Flags: --strong-mode
6
7(function UseStrongScoping() {
8  assertThrows("'use strong'; 0 == 0", SyntaxError);
9  assertThrows("'use strong'; try {} catch(e) { { 0 == 0 } }", SyntaxError);
10  assertThrows("function f() { 'use strong'; 0 == 0 }", SyntaxError);
11  assertThrows("'use strong'; function f() { 0 == 0 }", SyntaxError);
12  assertThrows("'use strong'; function f() { function g() { 0 == 0 } }", SyntaxError);
13  assertTrue(eval("function f() { 'use strong' } 0 == 0"));
14  assertTrue(eval("eval('\\\'use strong\\\''); 0 == 0"));
15})();
16
17(function UseStrongMixed() {
18  assertThrows("'use strict'; 'use strong'; 0 == 0", SyntaxError);
19  assertThrows("'use strong'; 'use strict'; 0 == 0", SyntaxError);
20  assertThrows("'use strong'; 'use strong'; 0 == 0", SyntaxError);
21  assertThrows("'use strict'; function f() { 'use strong'; 0 == 0 }", SyntaxError);
22  assertThrows("'use strong'; function f() { 'use strict'; 0 == 0 }", SyntaxError);
23  assertTrue(eval("'use strict'; function f() { 'use strong' } 0 == 0"));
24  assertTrue(eval("var x; function f() { 'use strong' } delete x"));
25  assertThrows("'use strict'; var x; function f() { 'use strong' } delete x", SyntaxError);
26})();
27