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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-id.case
// - src/dstr-binding/default/func-decl-dflt.template
/*---
description: Lone rest element (function declaration (default parameter))
esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
FunctionDeclaration :
function BindingIdentifier ( FormalParameters ) { FunctionBody }
[...]
3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
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.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
[...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
[...]
f. Let status be CreateDataProperty(A, ToString (n), nextValue).
[...]
---*/
var values = [1, 2, 3];
var callCount = 0;
function f([...x] = values) {
assert(Array.isArray(x));
assert.sameValue(x.length, 3);
assert.sameValue(x[0], 1);
assert.sameValue(x[1], 2);
assert.sameValue(x[2], 3);
assert.notSameValue(x, values);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'function invoked exactly once');
reportCompare(0, 0);
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