| // Copyright (c) 2011, 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. |
| |
| #include "vm/longjump.h" |
| |
| #include "include/dart_api.h" |
| |
| #include "vm/dart_api_impl.h" |
| #include "vm/isolate.h" |
| #include "vm/object.h" |
| #include "vm/os.h" |
| |
| namespace dart { |
| |
| jmp_buf* LongJumpScope::Set() { |
| ASSERT(top_ == nullptr); |
| top_ = Thread::Current()->top_resource(); |
| return &environment_; |
| } |
| |
| void LongJumpScope::Jump(int value, const Error& error) { |
| ASSERT(!error.IsNull()); |
| |
| // Remember the error in the sticky error of this isolate. |
| Thread::Current()->set_sticky_error(error); |
| |
| Jump(value); |
| } |
| |
| void LongJumpScope::Jump(int value) { |
| // A zero is the default return value from setting up a LongJumpScope |
| // using Set. |
| ASSERT(value != 0); |
| |
| Thread* thread = Thread::Current(); |
| DEBUG_ASSERT(thread->TopErrorHandlerIsSetJump()); |
| |
| // Destruct all the active StackResource objects. |
| StackResource::UnwindAbove(thread, top_); |
| longjmp(environment_, value); |
| UNREACHABLE(); |
| } |
| |
| } // namespace dart |