blob: 3649b6937afd5843037f7cccb992053430b9f813 [file] [log] [blame]
// This file was procedurally generated from the following sources:
// - src/function-forms/dflt-params-ref-prior.case
// - src/function-forms/default/arrow-function.template
/*---
description: Referencing a parameter that occurs earlier in the ParameterList (arrow function expression)
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
features: [default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
14.1.19 Runtime Semantics: IteratorBindingInitialization
FormalsList : FormalsList , FormalParameter
1. Let status be the result of performing IteratorBindingInitialization for
FormalsList using iteratorRecord and environment as the arguments.
2. ReturnIfAbrupt(status).
3. Return the result of performing IteratorBindingInitialization for
FormalParameter using iteratorRecord and environment as the arguments.
---*/
var x = 0;
var callCount = 0;
// Stores a reference `ref` for case evaluation
var ref;
ref = (x, y = x, z = y) => {
assert.sameValue(x, 3, 'first argument value');
assert.sameValue(y, 3, 'second argument value');
assert.sameValue(z, 3, 'third argument value');
callCount = callCount + 1;
};
ref(3);
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');