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Ensure that when HasBinding of an Object environment record returns an abrupt completion, that same completion is returned to the runtime. Update the meta-data of related tests for consistency with this new test.
46 lines
1.0 KiB
JavaScript
46 lines
1.0 KiB
JavaScript
// Copyright 2015 Mike Pennisi. 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-getidentifierreference
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es6id: 8.1.2.1
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description: >
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`Symbol.unscopables` is not referenced when environment record does not have
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requested property
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info: |
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[...]
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2. Let envRec be lex's EnvironmentRecord.
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3. Let exists be ? envRec.HasBinding(name).
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8.1.1.2.1 HasBinding
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1. Let envRec be the object Environment Record for which the method was
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invoked.
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2. Let bindings be the binding object for envRec.
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3. Let foundBinding be ? HasProperty(bindings, N).
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4. If foundBinding is false, return false.
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13.11.7 (The `with` Statement) Runtime Semantics: Evaluation
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[...]
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5. Set the withEnvironment flag of newEnv’s EnvironmentRecord to true.
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[...]
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flags: [noStrict]
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features: [Symbol.unscopables]
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---*/
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var x = 0;
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var env = {};
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var callCount = 0;
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Object.defineProperty(env, Symbol.unscopables, {
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get: function() {
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callCount += 1;
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}
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});
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with (env) {
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x;
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}
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assert.sameValue(callCount, 0);
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