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74 lines
2.2 KiB
JavaScript
74 lines
2.2 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/function-forms/dflt-params-arg-val-undefined.case
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// - src/function-forms/default/meth.template
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/*---
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description: Use of initializer when argument value is `undefined` (method)
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esid: sec-runtime-semantics-definemethod
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features: [default-parameters]
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flags: [generated]
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info: |
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MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
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[...]
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6. Let closure be FunctionCreate(kind, StrictFormalParameters,
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FunctionBody, scope, strict). If functionPrototype was passed as a
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parameter then pass its value as the functionPrototype optional argument
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of FunctionCreate.
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[...]
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9.2.1 [[Call]] ( thisArgument, argumentsList)
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[...]
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7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
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[...]
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9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
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1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
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[...]
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9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
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[...]
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23. Let iteratorRecord be Record {[[iterator]]:
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CreateListIterator(argumentsList), [[done]]: false}.
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24. If hasDuplicates is true, then
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[...]
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25. Else,
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b. Let formalStatus be IteratorBindingInitialization for formals with
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iteratorRecord and env as arguments.
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[...]
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14.1.19 Runtime Semantics: IteratorBindingInitialization
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FormalsList : FormalsList , FormalParameter
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[...]
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23. Let iteratorRecord be Record {[[Iterator]]:
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CreateListIterator(argumentsList), [[Done]]: false}.
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24. If hasDuplicates is true, then
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[...]
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25. Else,
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a. Perform ? IteratorBindingInitialization for formals with
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iteratorRecord and env as arguments.
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[...]
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---*/
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var callCount = 0;
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var obj = {
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method(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
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assert.sameValue(fromLiteral, 23);
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assert.sameValue(fromExpr, 45);
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assert.sameValue(fromHole, 99);
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callCount = callCount + 1;
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}
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};
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obj.method(undefined, void 0);
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// Stores a reference `ref` for case evaluation
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var ref = obj.method;
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assert.sameValue(callCount, 1, 'method invoked exactly once');
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