blob: 28a8e47a14be2da5e8b4f250aa4cdbc25dae0a09 [file] [log] [blame]
// 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