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44 lines
1.3 KiB
JavaScript
44 lines
1.3 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/dstr-assignment/array-rest-nested-obj-yield-expr.case
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// - src/dstr-assignment/default/assignment-expr.template
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/*---
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description: When a `yield` token appears within the Initializer of a nested destructuring assignment and within a generator function body, it should behave as a YieldExpression. (AssignmentExpression)
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esid: sec-variable-statement-runtime-semantics-evaluation
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features: [generators, 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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---*/
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var iterationResult, iter, x;
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iter = (function*() {
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var result;
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var vals = [{}];
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result = [...{ x = yield }] = vals;
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assert.sameValue(result, vals);
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}());
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iterationResult = iter.next();
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assert.sameValue(iterationResult.value, undefined);
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assert.sameValue(iterationResult.done, false);
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assert.sameValue(x, undefined);
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iterationResult = iter.next(4);
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assert.sameValue(iterationResult.value, undefined);
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assert.sameValue(iterationResult.done, true);
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assert.sameValue(x, 4);
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