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43 lines
1.2 KiB
JavaScript
43 lines
1.2 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/spread/mult-obj-undefined.case
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// - src/spread/default/member-expr.template
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/*---
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description: Object Spread operator following other arguments with undefined (`new` operator)
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esid: sec-new-operator-runtime-semantics-evaluation
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features: [object-spread]
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flags: [generated]
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info: |
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MemberExpression : new MemberExpression Arguments
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1. Return EvaluateNew(MemberExpression, Arguments).
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12.3.3.1.1 Runtime Semantics: EvaluateNew
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6. If arguments is empty, let argList be an empty List.
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7. Else,
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a. Let argList be ArgumentListEvaluation of arguments.
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[...]
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Pending Runtime Semantics: PropertyDefinitionEvaluation
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PropertyDefinition:...AssignmentExpression
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1. Let exprValue be the result of evaluating AssignmentExpression.
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2. Let fromValue be GetValue(exprValue).
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3. ReturnIfAbrupt(fromValue).
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4. Let excludedNames be a new empty List.
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5. Return CopyDataProperties(object, fromValue, excludedNames).
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---*/
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var callCount = 0;
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new function(obj) {
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assert.sameValue(obj.a, 1);
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assert.sameValue(obj.b, 2);
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assert.sameValue(Object.keys(obj).length, 2);
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callCount += 1;
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}({a: 1, b: 2, ...undefined});
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assert.sameValue(callCount, 1);
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