mirror of https://github.com/tc39/test262.git
45 lines
1.5 KiB
JavaScript
45 lines
1.5 KiB
JavaScript
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// This file was procedurally generated from the following sources:
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// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
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// - src/dstr-binding/default/var-stmt.template
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/*---
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description: SingleNameBinding when value iteration was completed previously (`var` statement)
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esid: sec-variable-statement-runtime-semantics-evaluation
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es6id: 13.3.2.4
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features: [destructuring-binding]
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flags: [generated]
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info: |
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VariableDeclaration : BindingPattern Initializer
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1. Let rhs be the result of evaluating Initializer.
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2. Let rval be GetValue(rhs).
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3. ReturnIfAbrupt(rval).
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4. Return the result of performing BindingInitialization for
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BindingPattern passing rval and undefined as arguments.
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13.3.3.6 Runtime Semantics: IteratorBindingInitialization
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SingleNameBinding : BindingIdentifier Initializeropt
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[...]
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4. If iteratorRecord.[[done]] is false, then
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a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
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b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
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c. ReturnIfAbrupt(next).
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d. If next is false, set iteratorRecord.[[done]] to true.
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e. Else,
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[...]
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i. Let v be IteratorValue(next).
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ii. If v is an abrupt completion, set
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iteratorRecord.[[done]] to true.
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iii. ReturnIfAbrupt(v).
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5. If iteratorRecord.[[done]] is true, let v be undefined.
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[...]
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8. Return InitializeReferencedBinding(lhs, v).
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---*/
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var [x, y, z] = [1, 2, 3];
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assert.sameValue(x, 1);
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assert.sameValue(y, 2);
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assert.sameValue(z, 3);
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