8982cb5c70
Function bindings are the only variables in LEGACY_CONST mode. (https://codereview.chromium.org/1819123002/). Since these variables can also be accessed in strict mode functions we should support handling such variables. Assigning to a legacy constant throws a TypeError in strict mode. Also fixes hydrogen.cc to throw a TypeError for legacy constants. BUG=v8:4280,chromium:599068 LOG=N TBR=rmcilroy@chromium.org Review URL: https://codereview.chromium.org/1845223006 Cr-Commit-Position: refs/heads/master@{#35383}
46 lines
1.1 KiB
JavaScript
46 lines
1.1 KiB
JavaScript
// Copyright 2016 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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// Tests function bindings are correctly handled in ignition.
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(function f() {
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function assignSloppy() {
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f = 0;
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}
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assertDoesNotThrow(assignSloppy);
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function assignStrict() {
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'use strict';
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f = 0;
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}
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assertThrows(assignStrict, TypeError);
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function assignStrictLookup() {
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eval("'use strict'; f = 1;");
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}
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assertThrows(assignStrictLookup, TypeError);
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})();
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// Tests for compound assignments which are handled differently
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// in crankshaft.
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(function f() {
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function assignSloppy() {
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f += "x";
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}
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assertDoesNotThrow(assignSloppy);
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assertDoesNotThrow(assignSloppy);
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%OptimizeFunctionOnNextCall(assignSloppy);
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assertDoesNotThrow(assignSloppy);
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function assignStrict() {
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'use strict';
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f += "x";
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}
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assertThrows(assignStrict, TypeError);
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assertThrows(assignStrict, TypeError);
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%OptimizeFunctionOnNextCall(assignStrict);
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assertThrows(assignStrict, TypeError);
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})();
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