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// Copyright (c) 2019, 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.
#ifndef RUNTIME_VM_LONGJUMP_H_
#define RUNTIME_VM_LONGJUMP_H_
#include <setjmp.h>
#include "vm/allocation.h"
#include "vm/thread_state.h"
namespace dart {
class Error;
class LongJumpScope : public StackResource {
public:
explicit LongJumpScope(ThreadState* thread = ThreadState::Current())
: StackResource(thread), top_(nullptr), base_(thread->long_jump_base()) {
thread->set_long_jump_base(this);
}
~LongJumpScope() {
ASSERT(thread() == ThreadState::Current());
thread()->set_long_jump_base(base_);
}
jmp_buf* Set();
DART_NORETURN void Jump(int value, const Error& error);
DART_NORETURN void Jump(int value);
private:
jmp_buf environment_;
StackResource* top_;
LongJumpScope* base_;
DISALLOW_COPY_AND_ASSIGN(LongJumpScope);
};
} // namespace dart
#endif // RUNTIME_VM_LONGJUMP_H_