// This file was procedurally generated from the following sources: // - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case // - src/dstr-binding/default/cls-expr-gen-meth.template /*--- description: SingleNameBinding does assign name to arrow functions (class expression method) esid: sec-class-definitions-runtime-semantics-evaluation es6id: 14.5.16 features: [destructuring-binding] flags: [generated] info: | ClassExpression : class BindingIdentifieropt ClassTail 1. If BindingIdentifieropt is not present, let className be undefined. 2. Else, let className be StringValue of BindingIdentifier. 3. Let value be the result of ClassDefinitionEvaluation of ClassTail with argument className. [...] 14.5.14 Runtime Semantics: ClassDefinitionEvaluation 21. For each ClassElement m in order from methods a. If IsStatic of m is false, then i. Let status be the result of performing PropertyDefinitionEvaluation for m with arguments proto and false. [...] 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation GeneratorMethod : * PropertyName ( StrictFormalParameters ) { GeneratorBody } 1. Let propKey be the result of evaluating PropertyName. 2. ReturnIfAbrupt(propKey). 3. If the function code for this GeneratorMethod is strict mode code, let strict be true. Otherwise let strict be false. 4. Let scope be the running execution context's LexicalEnvironment. 5. Let closure be GeneratorFunctionCreate(Method, StrictFormalParameters, GeneratorBody, 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 SingleNameBinding : BindingIdentifier Initializeropt [...] 6. 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). d. If IsAnonymousFunctionDefinition(Initializer) is true, then [...] 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v). ---*/ var callCount = 0; var C = class { *method([arrow = () => {}]) { assert.sameValue(arrow.name, 'arrow'); callCount = callCount + 1; } }; new C().method([]).next(); assert.sameValue(callCount, 1, 'method invoked exactly once');