| // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // The program crashed with segfault because we when we first compile foo |
| // and bar we allocate all four variables (a, b, c and d) to the context. |
| // When we compile foo the second time (with optimizations) we allocate |
| // only c and d to the context. This happened because parser folds away |
| // "${a}" and "${b}" as constant expressions when parsing bar on its own, |
| // i.e. the expressions were not parsed again and thus a and b were not |
| // marked as captured. |
| // This caused a mismatch between a context that bar expects and that |
| // the optimized version of foo produces. |
| |
| foo() { |
| const a = 1; |
| const b = 2; |
| var c = 3; |
| var d = 4; |
| |
| bar() { |
| if ("${a}" != "1") throw "failed"; |
| if ("${b}" != "2") throw "failed"; |
| if ("${c}" != "3") throw "failed"; |
| if ("${d}" != "4") throw "failed"; |
| } |
| |
| bar(); |
| } |
| |
| main() { |
| for (var i = 0; i < 50000; i++) foo(); |
| } |
