Class: MrbParser::DebugInfo

Inherits:
Object
  • Object
show all
Defined in:
lib/mrb_parser/debug_info.rb

Constant Summary collapse

MRB_DEBUG_LINE_ARY = 
0
MRB_DEBUG_LINE_FLAT_MAP = 
1
LINE_TYPE = 
["ARY", "FLAT_MAP"]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(debug_section, irep_record) ⇒ DebugInfo

Returns a new instance of DebugInfo.



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# File 'lib/mrb_parser/debug_info.rb', line 15

def initialize(debug_section, irep_record)
  @debug_section = debug_section
  @irep_record = irep_record
  irep_record.debug_info = self
  @infos = []
end

Instance Attribute Details

#debug_section ⇒ Object

Returns the value of attribute debug_section.



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# File 'lib/mrb_parser/debug_info.rb', line 11

def debug_section
  @debug_section
end

#files ⇒ Object

Returns the value of attribute files.



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# File 'lib/mrb_parser/debug_info.rb', line 10

def files
  @files
end

#infos ⇒ Object (readonly)

Returns the value of attribute infos.



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# File 'lib/mrb_parser/debug_info.rb', line 13

def infos
  @infos
end

#irep_record ⇒ Object

Returns the value of attribute irep_record.



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# File 'lib/mrb_parser/debug_info.rb', line 12

def irep_record
  @irep_record
end

#pc_count ⇒ Object

Returns the value of attribute pc_count.



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# File 'lib/mrb_parser/debug_info.rb', line 9

def pc_count
  @pc_count
end

Instance Method Details

#dump(n = 2) ⇒ Object 



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# File 'lib/mrb_parser/debug_info.rb', line 65

def dump(n = 2)
  printf_indent n, "*** DEBUG INFO ***\n"
  printf_indent n, "count: %d\n", @pc_count
  printf_indent n, "files: %d\n", @files.size
  @files.map{|file| file.dump(n+2)}
  @infos.each do |debug_info|
    debug_info.dump(n + 2)
  end
  printf_indent n, "*** ***\n"
end

#parse_record(parser) ⇒ Object 



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# File 'lib/mrb_parser/debug_info.rb', line 22

def parse_record(parser)
  @pc_count = parser.read_uint32
  flen = parser.read_uint16
  @files = []
  flen.times do
    file = DebugInfoFile.new
    @files << file
    file.start_pos = parser.read_uint32
    filename_idx = parser.read_uint16
    file.filename = @debug_section.filenames[filename_idx]

    file.line_entry_count = parser.read_uint32
    file.line_type = parser.read_uint8
    case file.line_type
    when MRB_DEBUG_LINE_ARY ## 0
      file.line_ary = []
      file.line_entry_count.times do
        file.line_ary << parser.read_uint16
      end
    when MRB_DEBUG_LINE_FLAT_MAP ## 1
      file.line_flat_map = []
      file.line_entry_count.times do
        start_pos = parser.read_uint32
        line = parser.read_uint16
        file.line_flat_map << {start_pos: start_pos, line: line}
      end
    else
      raise
    end
  end
  @irep_record.recs.each do |irep_record|
    info = MrbParser::DebugInfo.new(@debug_section, irep_record)
    @infos << info
    info.parse_record(parser)
  end
  self
end

#printf_indent(n, *args) ⇒ Object 



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# File 'lib/mrb_parser/debug_info.rb', line 60

def printf_indent(n, *args)
  print " "*n
  printf *args
end