mirror of https://github.com/tc39/test262.git
66 lines
2.0 KiB
JavaScript
66 lines
2.0 KiB
JavaScript
// This file was procedurally generated from the following sources:
|
|
// - src/dstr-binding/obj-ptrn-prop-ary-init.case
|
|
// - src/dstr-binding/default/func-decl-dflt.template
|
|
/*---
|
|
description: Object binding pattern with "nested" array binding pattern using initializer (function declaration (default parameter))
|
|
esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
|
|
es6id: 14.1.19
|
|
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.
|
|
[...]
|
|
|
|
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
|
|
|
|
[...]
|
|
3. If Initializer is present and v is undefined, then
|
|
a. Let defaultValue be the result of evaluating Initializer.
|
|
b. Let v be GetValue(defaultValue).
|
|
c. ReturnIfAbrupt(v).
|
|
4. Return the result of performing BindingInitialization for BindingPattern
|
|
passing v and environment as arguments.
|
|
---*/
|
|
|
|
var callCount = 0;
|
|
function f({ w: [x, y, z] = [4, 5, 6] } = {}) {
|
|
assert.sameValue(x, 4);
|
|
assert.sameValue(y, 5);
|
|
assert.sameValue(z, 6);
|
|
|
|
assert.throws(ReferenceError, function() {
|
|
w;
|
|
});
|
|
callCount = callCount + 1;
|
|
};
|
|
f();
|
|
assert.sameValue(callCount, 1, 'function invoked exactly once');
|