Module: Debugger::FrameFunctions

Defined in:
lib/ruby-debug/commands/frame.rb

Overview

Mix-in module to assist in command parsing.

Instance Method Summary collapse

Instance Method Details

#adjust_frame(frame_pos, absolute, context = @state.context) ⇒ Object

:nodoc:



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# File 'lib/ruby-debug/commands/frame.rb', line 4

def adjust_frame(frame_pos, absolute, context=@state.context)
  @state.frame_pos = 0 if context != @state.context
  if absolute
    if frame_pos < 0
      abs_frame_pos = context.stack_size + frame_pos
    else
      abs_frame_pos = frame_pos
    end
  else
    abs_frame_pos = @state.frame_pos + frame_pos
  end

  if abs_frame_pos >= context.stack_size then
    errmsg pr("frame.errors.too_low")
    return
  elsif abs_frame_pos < 0 then
    errmsg pr("frame.errors.too_high")
    return
  end
  if @state.frame_pos != abs_frame_pos then
    @state.previous_line = nil
    @state.frame_pos = abs_frame_pos
  end
  @state.file = context.frame_file(@state.frame_pos)
  @state.line = context.frame_line(@state.frame_pos)

  print_frame(nil, @state.frame_pos, true)
end

#get_frame_call(prefix_size, pos, context) ⇒ Object 



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# File 'lib/ruby-debug/commands/frame.rb', line 33

def get_frame_call(prefix_size, pos, context)
  id = context.frame_method(pos)
  klass = context.frame_class(pos)
  call_str = ""
  if id
    args = context.frame_args(pos)
    locals = context.frame_locals(pos)
    if Command.settings[:callstyle] != :short && klass
      if Command.settings[:callstyle] == :tracked
        arg_info = context.frame_args_info(pos)
      end
      call_str << "#{klass}."
    end
    call_str << id.id2name
    if args.any?
      call_str << "("
      args.each_with_index do |name, i|
        case Command.settings[:callstyle]
        when :short
          call_str += "%s, " % [name]
        when :last
          klass = locals[name].class
          if klass.inspect.size > 20+3
            klass = klass.inspect[0..20]+"..."
          end
          call_str += "%s#%s, " % [name, klass]
        when :tracked
          if arg_info && arg_info.size > i
            call_str += "#{name}: #{arg_info[i].inspect}, "
          else
            call_str += "%s, " % name
          end
        end
        if call_str.size > self.class.settings[:width] - prefix_size
          # Strip off trailing ', ' if any but add stuff for later trunc
          call_str[-2..-1] = ",...XX"
          break
        end
      end
      call_str[-2..-1] = ")" # Strip off trailing ', ' if any
    end
  end
  return call_str
end

#print_frame(mark, pos, adjust = false, context = @state.context) ⇒ Object 



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# File 'lib/ruby-debug/commands/frame.rb', line 78

def print_frame(mark, pos, adjust = false, context = @state.context)
  if print_frame?(context, pos)
    print pr("frame.line", get_pr_arguments(mark, pos, context))
    if ENV['EMACS'] && adjust
      fmt = (Debugger.annotate.to_i > 1 ?
             "\032\032source %s:%d\n" : "\032\032%s:%d\n")
      print fmt % [file, line]
    end
  end
end