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39 lines
1.3 KiB
JavaScript
39 lines
1.3 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/dstr-binding/obj-ptrn-prop-obj-init.case
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// - src/dstr-binding/default/var-stmt.template
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/*---
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description: Object binding pattern with "nested" object binding pattern using initializer (`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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13.3.3.7 Runtime Semantics: KeyedBindingInitialization
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[...]
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3. If Initializer is present and v is undefined, then
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a. Let defaultValue be the result of evaluating Initializer.
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b. Let v be GetValue(defaultValue).
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c. ReturnIfAbrupt(v).
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4. Return the result of performing BindingInitialization for BindingPattern
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passing v and environment as arguments.
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---*/
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var { w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined };
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assert.sameValue(x, 4);
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assert.sameValue(y, 5);
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assert.sameValue(z, 6);
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assert.throws(ReferenceError, function() {
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w;
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});
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