mirror of https://github.com/tc39/test262.git
66 lines
2.1 KiB
JavaScript
66 lines
2.1 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/params/dflt-ref-prior.case
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// - src/params/default/func-decl.template
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/*---
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description: Referencing a parameter that occurs earlier in the ParameterList (function declaration)
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esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
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features: [default-parameters]
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flags: [generated]
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info: |
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FunctionDeclaration :
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function BindingIdentifier ( FormalParameters ) { FunctionBody }
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[...]
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3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
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scope, strict).
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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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1. Let status be the result of performing IteratorBindingInitialization for
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FormalsList using iteratorRecord and environment as the arguments.
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2. ReturnIfAbrupt(status).
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3. Return the result of performing IteratorBindingInitialization for
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FormalParameter using iteratorRecord and environment as the arguments.
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---*/
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var x = 0;
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var callCount = 0;
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// Stores a reference `ref` for case evaluation
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function ref(x, y = x, z = y) {
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assert.sameValue(x, 3, 'first argument value');
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assert.sameValue(y, 3, 'second argument value');
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assert.sameValue(z, 3, 'third argument value');
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callCount = callCount + 1;
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}
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ref(3);
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assert.sameValue(callCount, 1, 'function invoked exactly once');
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