// This file was procedurally generated from the following sources: // - src/function-forms/unscopables-with-in-nested-fn.case // - src/function-forms/default/gen-func-decl.template /*--- description: Symbol.unscopables behavior across scope boundaries (generator function declaration) esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject features: [globalThis, Symbol.unscopables, generators] flags: [generated, noStrict] info: | GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } [...] 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, 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. [...] ... Let envRec be lex's EnvironmentRecord. Let exists be ? envRec.HasBinding(name). HasBinding ... If the withEnvironment flag of envRec is false, return true. Let unscopables be ? Get(bindings, @@unscopables). If Type(unscopables) is Object, then Let blocked be ToBoolean(? Get(unscopables, N)). If blocked is true, return false. (The `with` Statement) Runtime Semantics: Evaluation ... Set the withEnvironment flag of newEnv’s EnvironmentRecord to true. ... ---*/ let count = 0; var v = 1; globalThis[Symbol.unscopables] = { v: true, }; { count++; var callCount = 0; // Stores a reference `ref` for case evaluation function* ref(x) { (function() { count++; with (globalThis) { count++; assert.sameValue(v, 1, 'The value of `v` is 1'); } })(); (function() { count++; var v = x; with (globalThis) { count++; assert.sameValue(v, 10, 'The value of `v` is 10'); v = 20; } assert.sameValue(v, 20, 'The value of `v` is 20'); assert.sameValue(globalThis.v, 1, 'The value of globalThis.v is 1'); })(); assert.sameValue(v, 1, 'The value of `v` is 1'); assert.sameValue(globalThis.v, 1, 'The value of globalThis.v is 1'); callCount = callCount + 1; } ref(10).next(); assert.sameValue(callCount, 1, 'generator function invoked exactly once'); count++; } assert.sameValue(count, 6, 'The value of `count` is 6'); reportCompare(0, 0);