| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case |
| // - src/dstr-binding/error/gen-meth-dflt.template |
| /*--- |
| description: Destructuring initializer is an unresolvable reference (generator method (default parameter)) |
| esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation |
| features: [generators, destructuring-binding, default-parameters] |
| flags: [generated] |
| info: | |
| 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). |
| |
| 6.2.3.1 GetValue (V) |
| |
| 1. ReturnIfAbrupt(V). |
| 2. If Type(V) is not Reference, return V. |
| 3. Let base be GetBase(V). |
| 4. If IsUnresolvableReference(V), throw a ReferenceError exception. |
| ---*/ |
| |
| var obj = { |
| *method([ x = unresolvableReference ] = []) {} |
| }; |
| |
| assert.throws(ReferenceError, function() { |
| obj.method(); |
| }); |