class Debugger::JumpCommand

Implements debugger “jump” command

Public Class Methods

help(cmd) click to toggle source
# File cli/ruby-debug/commands/jump.rb, line 55
 def help(cmd)
   %Q{
     j[ump] line\tjump to line number (absolute)
     j[ump] -line\tjump back to line (relative)
     j[ump] +line\tjump ahead to line (relative)

     Change the next line of code to be executed.
    }
end
help_command() click to toggle source
# File cli/ruby-debug/commands/jump.rb, line 51
def help_command
  %w[jump]
end

Public Instance Methods

execute() click to toggle source
# File cli/ruby-debug/commands/jump.rb, line 20
def execute
  if !@match[1]
    errmsg "\"jump\" must be followed by a line number\n"
    return
  end
  if !numeric?(@match[1])
    puts "Bad line number: " + @match[1]
    return
  end
  line = @match[1].to_i
  line = @state.context.frame_line(0) + line if @match[1][0] == '+' or @match[1][0] == '-'
  if line == @state.context.frame_line(0)
    CommandProcessor.print_location_and_text(@state.context.frame_file(0), line)
    return
  end
  file = @match[2]
  file = @state.context.frame_file(file.to_i) if numeric?(file)
  file = @state.context.frame_file(0) if !file
  case Debugger.current_context.jump(line, file)
  when 0
    @state.proceed
  when 1
    errmsg "Not possible to jump from here\n"
  when 2
    errmsg "Couldn't find debugged frame\n"
  when 3
    errmsg "Couldn't find active code at " + file + ":" + line.to_s + "\n"
  end
end
numeric?(object) click to toggle source
# File cli/ruby-debug/commands/jump.rb, line 7
def numeric?(object)
  true if Float(object) rescue false
end
regexp() click to toggle source
# File cli/ruby-debug/commands/jump.rb, line 11
def regexp
  / ^\s*
     j(?:ump)? \s*
     (?:\s+(\S+))?\s*
     (?:\s+(\S+))?\s*
     $
  /x
end