2d2b72f638
--harmony_sloppy includes behavior to turn on sloppy mode lexical bindings. Before this patch, it also included a way to parse let which is likely web-incompatible (let is disallowed as an identifier). This patch splits off the let parsing from the more general block scoping code, so that block scoping can be developed independently. R=adamk LOG=N BUG=v8:3305 Review URL: https://codereview.chromium.org/1255013002 Cr-Commit-Position: refs/heads/master@{#29855}
35 lines
633 B
JavaScript
35 lines
633 B
JavaScript
// Copyright 2015 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: --min-preparse-length=0
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// Flags: --no-legacy-const --harmony-sloppy --harmony-sloppy-let
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let xxx = 1;
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let f = undefined;
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{
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let inner_x = xxx;
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f = function() { return inner_x; };
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}
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assertSame(1, f());
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xxx = 42;
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{
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f = function() { return inner_x1; };
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let inner_x1 = xxx;
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}
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assertSame(42, f());
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xxx = 31;
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{
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let inner_x1 = xxx;
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try {
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throw new Error();
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} catch (e) {
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f = function() { return inner_x1; };
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}
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}
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assertSame(31, f());
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