JSTests/test262/test/language/statements/function/dstr/obj-ptrn-id-init-fn-name-class.js

// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
// - src/dstr-binding/default/func-decl.template
/*---
description: SingleNameBinding assigns `name` to "anonymous" classes (function declaration)
esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
es6id: 14.1.19
features: [destructuring-binding]
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

    SingleNameBinding : BindingIdentifier Initializeropt

    [...]
    6. If Initializer is present and v is undefined, then
       [...]
       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
          i. Let hasNameProperty be HasOwnProperty(v, "name").
          ii. ReturnIfAbrupt(hasNameProperty).
          iii. If hasNameProperty is false, perform SetFunctionName(v,
               bindingId).
---*/

var callCount = 0;
function f({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } }) {
  assert.sameValue(cls.name, 'cls');
  assert.notSameValue(xCls.name, 'xCls');
  assert.notSameValue(xCls2.name, 'xCls2');
  callCount = callCount + 1;
};
f({});
assert.sameValue(callCount, 1, 'function invoked exactly once');