// |reftest| async // This file was procedurally generated from the following sources: // - src/function-forms/unscopables-with-in-nested-fn.case // - src/function-forms/default/async-gen-func-decl.template /*--- description: Symbol.unscopables behavior across scope boundaries (async generator function declaration) esid: sec-asyncgenerator-definitions-instantiatefunctionobject features: [globalThis, Symbol.unscopables, async-iteration] flags: [generated, noStrict, async] info: | AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody } [...] 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody, scope, strict). [...] ... 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 async 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().then(() => { assert.sameValue(callCount, 1, 'generator function invoked exactly once'); }).then($DONE, $DONE); count++; } assert.sameValue(count, 6, 'The value of `count` is 6');