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32 lines
1.0 KiB
JavaScript
32 lines
1.0 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-functiondeclarationinstantiation
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description: >
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sloppy direct evals in params introduce vars
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info: |
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[...]
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20. Else,
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a. NOTE: A separate Environment Record is needed to ensure that bindings created by direct eval calls in the formal parameter list are outside the environment where parameters are declared.
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b. Let calleeEnv be the LexicalEnvironment of calleeContext.
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c. Let env be NewDeclarativeEnvironment(calleeEnv).
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d. Let envRec be env's EnvironmentRecord.
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[...]
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flags: [noStrict]
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---*/
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var x = 'outside';
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var probe1, probe2, probeBody;
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function f(
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_ = (eval('var x = "inside";'), probe1 = function() { return x; }),
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__ = probe2 = function() { return x; }
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) {
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probeBody = function() { return x; };
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}
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f();
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assert.sameValue(probe1(), 'inside');
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assert.sameValue(probe2(), 'inside');
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assert.sameValue(probeBody(), 'inside');
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