Class: Byebug::CatchCommand

Inherits:
Command
  • Object
show all
Defined in:
lib/byebug/commands/catchpoint.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Command

commands, find, format_subcmd, format_subcmds, help, inherited, #initialize, load_commands, #match

Constructor Details

This class inherits a constructor from Byebug::Command

Class Method Details

.description ⇒ Object 



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# File 'lib/byebug/commands/catchpoint.rb', line 38

def description
  %{cat[ch]\t\t\t\tLists catchpoints
    cat[ch] off\t\t\tDeletes all catchpoints
    cat[ch] <exception> [off]\tEnable/disable handling <exception>.}
end

.names ⇒ Object 



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# File 'lib/byebug/commands/catchpoint.rb', line 34

def names
  %w(catch)
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/byebug/commands/catchpoint.rb', line 9

def execute
  excn = @match[1]
  return info_catch unless excn

  if not @match[2]
    if 'off' == @match[1]
      Byebug.catchpoints.clear if
        confirm("Delete all catchpoints? (y or n) ")
    else
      print "Warning #{@match[1]} is not known to be a Class\n" unless
        bb_eval "#{@match[1]}.is_a?(Class)", get_binding
      Byebug.add_catchpoint @match[1]
      print "Catching exception #{@match[1]}.\n"
    end
  elsif @match[2] != 'off'
    errmsg "Off expected. Got #{@match[2]}\n"
  elsif Byebug.catchpoints.member?(@match[1])
    Byebug.catchpoints.delete @match[1]
    print "Catch for exception #{match[1]} removed.\n"
  else
    return errmsg "Catch for exception #{@match[1]} not found\n"
  end
end

#regexp ⇒ Object 



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# File 'lib/byebug/commands/catchpoint.rb', line 5

def regexp
  /^\s* cat(?:ch)? (?:\s+(\S+))? (?:\s+(off))? \s*$/x
end