0281020193
Bug: v8:8973 Change-Id: I64d6f574bc2e480b76ebefcf9ad27a96fbe60569 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1520708 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#60210}
34 lines
1.2 KiB
JavaScript
34 lines
1.2 KiB
JavaScript
// Copyright 2019 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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// Parameters can't have parentheses (both patterns and identifiers)
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assertThrows("( ({x: 1}) ) => {};", SyntaxError);
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assertThrows("( (x) ) => {}", SyntaxError);
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assertThrows("( ({x: 1}) = y ) => {}", ReferenceError);
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assertThrows("( (x) = y ) => {}", SyntaxError);
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// Declarations can't have parentheses (both patterns and identifiers)
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assertThrows("let [({x: 1})] = [];", SyntaxError);
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assertThrows("let [(x)] = [];", SyntaxError);
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assertThrows("let [({x: 1}) = y] = [];", SyntaxError);
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assertThrows("let [(x) = y] = [];", SyntaxError);
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assertThrows("var [({x: 1})] = [];", SyntaxError);
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assertThrows("var [(x)] = [];", SyntaxError);
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assertThrows("var [({x: 1}) = y] = [];", SyntaxError);
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assertThrows("var [(x) = y] = [];", SyntaxError);
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// Patterns can't have parentheses in assignments either
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assertThrows("[({x: 1}) = y] = [];", ReferenceError);
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assertThrows("({a,b}) = {a:2,b:3}", ReferenceError);
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// Parentheses are fine around identifiers in assignments though, even inside a
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// pattern
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var x;
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[(x)] = [2];
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assertEquals(x, 2);
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[(x) = 3] = [];
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assertEquals(x, 3);
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