a0a8ecd078
These were all on by default in M49 without complaint. R=littledan@chromium.org Review URL: https://codereview.chromium.org/1858943002 Cr-Commit-Position: refs/heads/master@{#35342}
80 lines
1.6 KiB
JavaScript
80 lines
1.6 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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//
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// In sloppy mode we allow function redeclarations within blocks for webcompat.
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(function() {
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assertEquals(undefined, f); // Annex B
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if (true) {
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assertEquals(2, f());
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function f() { return 1 }
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assertEquals(2, f());
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function f() { return 2 }
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assertEquals(2, f());
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}
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assertEquals(2, f()); // Annex B
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})();
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// Should still fail in strict mode
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assertThrows(`
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(function() {
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"use strict";
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if (true) {
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function f() { return 1 }
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function f() { return 2 }
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}
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})();
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`, SyntaxError);
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// Conflicts between let and function still throw
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assertThrows(`
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(function() {
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if (true) {
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let f;
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function f() { return 2 }
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}
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})();
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`, SyntaxError);
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assertThrows(`
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(function() {
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if (true) {
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function f() { return 2 }
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let f;
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}
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})();
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`, SyntaxError);
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// Conflicts between const and function still throw
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assertThrows(`
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(function() {
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if (true) {
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const f;
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function f() { return 2 }
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}
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})();
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`, SyntaxError);
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assertThrows(`
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(function() {
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if (true) {
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function f() { return 2 }
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const f;
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}
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})();
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`, SyntaxError);
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// Annex B redefinition semantics still apply with more blocks
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(function() {
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assertEquals(undefined, f); // Annex B
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if (true) {
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assertEquals(undefined, f);
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{ function f() { return 1 } }
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assertEquals(1, f());
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{ function f() { return 2 } }
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assertEquals(2, f());
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}
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assertEquals(2, f()); // Annex B
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})();
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