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//===-- AppleThreadPlanStepThroughObjCTrampoline.h --------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef lldb_AppleThreadPlanStepThroughObjCTrampoline_h_
#define lldb_AppleThreadPlanStepThroughObjCTrampoline_h_

// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/lldb-types.h"
#include "lldb/lldb-enumerations.h"
#include "lldb/Core/Value.h"
#include "lldb/Target/ThreadPlan.h"
#include "AppleObjCTrampolineHandler.h"

namespace lldb_private 
{

class AppleThreadPlanStepThroughObjCTrampoline : public ThreadPlan
{
public:
    AppleThreadPlanStepThroughObjCTrampoline(Thread &thread, 
                                             AppleObjCTrampolineHandler *trampoline_handler, 
                                             ValueList &values,
                                             lldb::addr_t isa_addr,
                                             lldb::addr_t sel_addr,
                                             bool stop_others);

    ~AppleThreadPlanStepThroughObjCTrampoline() override;

    static bool
    PreResumeInitializeFunctionCaller(void *myself);

    void
    GetDescription(Stream *s,
                   lldb::DescriptionLevel level) override;
                    
    bool
    ValidatePlan(Stream *error) override;

    lldb::StateType
    GetPlanRunState() override;

    bool
    ShouldStop(Event *event_ptr) override;
    
    bool
    StopOthers() override
    {
        return m_stop_others;
    }

    // The base class MischiefManaged does some cleanup - so you have to call it
    // in your MischiefManaged derived class.
    bool
    MischiefManaged() override;
    
    void
    DidPush() override;
    
    bool
    WillStop() override;

protected:
    bool
    DoPlanExplainsStop(Event *event_ptr) override;
	
private:
    bool
    InitializeFunctionCaller ();

    AppleObjCTrampolineHandler *m_trampoline_handler; // FIXME - ensure this doesn't go away on us?  SP maybe?
    lldb::addr_t m_args_addr;     // Stores the address for our step through function result structure.
    //lldb::addr_t m_object_addr;  // This is only for Description.
    ValueList    m_input_values;
    lldb::addr_t m_isa_addr;     // isa_addr and sel_addr are the keys we will use to cache the implementation.
    lldb::addr_t m_sel_addr;
    lldb::ThreadPlanSP m_func_sp;       // This is the function call plan.  We fill it at start, then set it
                                        // to NULL when this plan is done.  That way we know to go to:
    lldb::ThreadPlanSP m_run_to_sp;     // The plan that runs to the target.
    FunctionCaller *m_impl_function;  // This is a pointer to a impl function that
                                     // is owned by the client that pushes this plan.
    bool m_stop_others;
};

} // namespace lldb_private

#endif // lldb_AppleThreadPlanStepThroughObjCTrampoline_h_