tempDecoder.hpp

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/* Copyright 1994, LongView Technologies L.L.C. $Revision: 1.8 $ */
/* Copyright (c) 2006, Sun Microsystems, Inc.
All rights reserved.

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          from this software without specific prior written permission.

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*/

// TempDecoder decodes the method annotation describing
// the names of parameters and temporaries.

class TempDecoder {
 private:
   int num_of_params;
   bool is_heap_parameter(byteArrayOop name, objArrayOop tempInfo);
 public:
  virtual void decode(methodOop method, int bci = 0);

  // arguments are numbered from 1 to n
  virtual void parameter        (byteArrayOop name, int index) {}
  virtual void stack_temp       (byteArrayOop name, int no)    {}
  virtual void stack_float_temp (byteArrayOop name, int fno)   {}
  virtual void heap_temp        (byteArrayOop name, int no)    {}
  virtual void heap_parameter   (byteArrayOop name, int no)    {}

  virtual void no_debug_info() {}      
};

class TempPrinter : public TempDecoder {
 private:
   
 public:
  void decode(methodOop method, int bci = 0);

  // arguments are numbered from 1 to n
  void parameter        (byteArrayOop name, int index);
  void stack_temp       (byteArrayOop name, int no);
  void stack_float_temp (byteArrayOop name, int fno);
  void heap_temp        (byteArrayOop name, int no);
  void heap_parameter   (byteArrayOop name, int no);

  void no_debug_info();
};

// Returns the name of parameter number if found, NULL otherwise.
byteArrayOop find_parameter_name(methodOop method, int no);

// Returns the name of temp at offset if found, NULL otherwise.
byteArrayOop find_stack_temp(methodOop method, int bci, int no);
byteArrayOop find_heap_temp(methodOop method, int bci, int no);
byteArrayOop find_stack_float_temp(methodOop method, int bci, int fno);

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