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34 lines
1.3 KiB
JavaScript
34 lines
1.3 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-globaldeclarationinstantiation
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es6id: 15.1.8
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description: >
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When multiple like-named function declarations exist, the final is assigned
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to the new binding.
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info: |
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[...]
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9. Let declaredFunctionNames be a new empty List.
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10. For each d in varDeclarations, in reverse list order do
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a. If d is neither a VariableDeclaration or a ForBinding, then
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i. Assert: d is either a FunctionDeclaration or a
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GeneratorDeclaration.
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ii. NOTE If there are multiple FunctionDeclarations for the same name,
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the last declaration is used.
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iii. Let fn be the sole element of the BoundNames of d.
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iv. If fn is not an element of declaredFunctionNames, then
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1. Let fnDefinable be ? envRec.CanDeclareGlobalFunction(fn).
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2. If fnDefinable is false, throw a TypeError exception.
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3. Append fn to declaredFunctionNames.
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4. Insert d as the first element of functionsToInitialize.
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[...]
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---*/
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$262.evalScript(
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'function f() { return 1; }' +
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'function f() { return 2; }' +
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'function f() { return 3; }'
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);
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assert.sameValue(f(), 3);
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