// This file was procedurally generated from the following sources: // - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case // - src/dstr-binding/default/func-decl-dflt.template /*--- description: SingleNameBinding assigns name to "anonymous" functions (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. [...] 13.3.3.7 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({ fn = function () {}, xFn = function x() {} } = {}) { assert.sameValue(fn.name, 'fn'); assert.notSameValue(xFn.name, 'xFn'); callCount = callCount + 1; }; f(); assert.sameValue(callCount, 1, 'function invoked exactly once'); reportCompare(0, 0);