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// Copyright (c) 2021, 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_PENDING_DEOPTS_H_
#define RUNTIME_VM_PENDING_DEOPTS_H_
#if defined(SHOULD_NOT_INCLUDE_RUNTIME)
#error "Should not include runtime"
#endif
#include "vm/growable_array.h"
namespace dart {
class PendingLazyDeopt {
public:
PendingLazyDeopt(uword fp, uword pc) : fp_(fp), pc_(pc) {}
uword fp() { return fp_; }
uword pc() { return pc_; }
void set_pc(uword pc) { pc_ = pc; }
private:
uword fp_;
uword pc_;
};
class PendingDeopts {
public:
enum ClearReason {
kClearDueToThrow,
kClearDueToDeopt,
};
PendingDeopts();
~PendingDeopts();
bool HasPendingDeopts() { return pending_deopts_->length() > 0; }
void AddPendingDeopt(uword fp, uword pc);
uword FindPendingDeopt(uword fp);
void ClearPendingDeoptsBelow(uword fp, ClearReason reason);
void ClearPendingDeoptsAtOrBelow(uword fp, ClearReason reason);
uword RemapExceptionPCForDeopt(uword program_counter,
uword frame_pointer,
bool* clear_deopt);
private:
PendingLazyDeopt* FindPendingDeoptRecord(uword fp);
MallocGrowableArray<PendingLazyDeopt>* pending_deopts_;
};
} // namespace dart
#endif // RUNTIME_VM_PENDING_DEOPTS_H_