mirror of
https://github.com/tc39/test262.git
synced 2025-10-31 11:44:31 +01:00
64 lines
1.8 KiB
JavaScript
64 lines
1.8 KiB
JavaScript
// This file was procedurally generated from the following sources:
|
|
// - src/dstr-binding/ary-ptrn-rest-id-direct.case
|
|
// - src/dstr-binding/default/func-decl-dflt.template
|
|
/*---
|
|
description: Lone rest element (direct binding) (function declaration (default parameter))
|
|
esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
|
|
features: [destructuring-binding, default-parameters]
|
|
flags: [generated]
|
|
includes: [compareArray.js]
|
|
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.
|
|
[...]
|
|
|
|
Runtime Semantics: IteratorBindingInitialization
|
|
|
|
BindingRestElement : ... BindingIdentifier
|
|
|
|
[...]
|
|
2. Let A be ! ArrayCreate(0).
|
|
3. Let n be 0.
|
|
4. Repeat,
|
|
[...]
|
|
f. Perform ! CreateDataPropertyOrThrow(A, ! ToString(n), nextValue).
|
|
g. Set n to n + 1.
|
|
|
|
---*/
|
|
|
|
var callCount = 0;
|
|
function f([...x] = [1]) {
|
|
assert(Array.isArray(x));
|
|
assert.compareArray(x, [1]);
|
|
callCount = callCount + 1;
|
|
};
|
|
f();
|
|
assert.sameValue(callCount, 1, 'function invoked exactly once');
|