| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-block-runtime-semantics-evaluation |
| description: Retainment of existing variable environment for BlockStatement |
| info: | |
| 1. Let oldEnv be the running execution context's LexicalEnvironment. |
| 2. Let blockEnv be NewDeclarativeEnvironment(oldEnv). |
| 3. Perform BlockDeclarationInstantiation(StatementList, blockEnv). |
| 4. Set the running execution context's LexicalEnvironment to blockEnv. |
| 5. Let blockValue be the result of evaluating StatementList. |
| 6. Set the running execution context's LexicalEnvironment to oldEnv. |
| 7. Return blockValue. |
| ---*/ |
| |
| var x = 'outside'; |
| var probeBefore = function() { return x; }; |
| var probeInside; |
| |
| { |
| var x = 'inside'; |
| probeInside = function() { return x; }; |
| } |
| |
| assert.sameValue(probeBefore(), 'inside', 'reference preceding statement'); |
| assert.sameValue(probeInside(), 'inside', 'reference within statement'); |
| assert.sameValue(x, 'inside', 'reference following statement'); |