/**
 ******************************************************************************
 * Xenia : Xbox 360 Emulator Research Project                                 *
 ******************************************************************************
 * Copyright 2013 Ben Vanik. All rights reserved.                             *
 * Released under the BSD license - see LICENSE in the root for more details. *
 ******************************************************************************
 */

#ifndef ALLOY_RUNTIME_DEBUG_INFO_H_
#define ALLOY_RUNTIME_DEBUG_INFO_H_

#include <alloy/core.h>


namespace alloy {
namespace runtime {


enum DebugInfoFlags {
  DEBUG_INFO_NONE                 = 0,

  DEBUG_INFO_SOURCE_DISASM        = (1 << 1),
  DEBUG_INFO_RAW_HIR_DISASM       = (1 << 2),
  DEBUG_INFO_HIR_DISASM           = (1 << 3),
  DEBUG_INFO_MACHINE_CODE_DISASM  = (1 << 4),

  DEBUG_INFO_SOURCE_MAP           = (1 << 5),

  DEBUG_INFO_DEFAULT              = DEBUG_INFO_SOURCE_MAP,
  DEBUG_INFO_ALL_DISASM           = 0xFFFF,
};


typedef struct SourceMapEntry_s {
  uint64_t source_offset; // Original source address/offset.
  uint64_t hir_offset;    // Block ordinal (16b) | Instr ordinal (16b)
  uint64_t code_offset;   // Offset from emitted code start.
} SourceMapEntry;


class DebugInfo {
public:
  DebugInfo();
  ~DebugInfo();

  const char* source_disasm() const { return source_disasm_; }
  void set_source_disasm(char* value) { source_disasm_ = value; }
  const char* raw_hir_disasm() const { return raw_hir_disasm_; }
  void set_raw_hir_disasm(char* value) { raw_hir_disasm_ = value; }
  const char* hir_disasm() const { return hir_disasm_; }
  void set_hir_disasm(char* value) { hir_disasm_ = value; }
  const char* machine_code_disasm() const { return machine_code_disasm_; }
  void set_machine_code_disasm(char* value) { machine_code_disasm_ = value; }

  void InitializeSourceMap(size_t source_map_count,
                           SourceMapEntry* source_map);
  SourceMapEntry* LookupSourceOffset(uint64_t offset);
  SourceMapEntry* LookupHIROffset(uint64_t offset);
  SourceMapEntry* LookupCodeOffset(uint64_t offset);

private:
  char* source_disasm_;
  char* raw_hir_disasm_;
  char* hir_disasm_;
  char* machine_code_disasm_;

  size_t source_map_count_;
  SourceMapEntry* source_map_;
};


}  // namespace runtime
}  // namespace alloy


#endif  // ALLOY_RUNTIME_DEBUG_INFO_H_