| // Copyright 2016 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Flags: --no-harmony-restrictive-generators |
| |
| // In legacy mode, generators get sloppy-mode block-scoped function hoisting |
| |
| // Hoisting to the global scope |
| |
| { |
| function* foo() {} |
| assertEquals('function', typeof foo); |
| } |
| //assertEquals('function', typeof foo); |
| |
| // Hoisting within a function scope |
| (function() { |
| { function* bar() {} } |
| assertEquals('function', typeof bar); |
| })(); |
| |
| // Lexical shadowing allowed; hoisting happens |
| (function() { |
| function* x() { yield 1; } |
| { function* x() { yield 2 } } |
| assertEquals(2, x().next().value); |
| })(); |
| |
| // Duplicates allowed |
| (function() { |
| function* y() { yield 1; } |
| function* y() { yield 2 } |
| assertEquals(2, y().next().value); |
| })(); |
| |
| // Functions and generators may duplicate each other |
| (function() { |
| function* z() { yield 1; } |
| function z() { return 2 } |
| assertEquals(2, z()); |
| |
| function a() { return 1; } |
| function* a() { yield 2 } |
| assertEquals(2, a().next().value); |
| })(); |
| |
| // In strict mode, none of this happens |
| |
| (function() { |
| 'use strict'; |
| |
| { function* bar() {} } |
| assertEquals('undefined', typeof bar); |
| |
| // Lexical shadowing allowed; hoisting happens |
| function* x() { yield 1; } |
| { function* x() { yield 2 } } |
| assertEquals(1, x().next().value); |
| })(); |