In Files

  • irb/ext/use-loader.rb
  • irb/extend-command.rb

IRB::ExtendCommandBundle::EXCB

IRB extended command

Public Class Methods

def_extend_command(cmd_name, cmd_class, load_file = nil, *aliases) click to toggle source

aliases = [commands_alias, flag], …

 
               # File irb/extend-command.rb, line 115
def self.def_extend_command(cmd_name, cmd_class, load_file = nil, *aliases)
  case cmd_class
  when Symbol
    cmd_class = cmd_class.id2name
  when String
  when Class
    cmd_class = cmd_class.name
  end

  if load_file
    line = __LINE__; eval %Q[
      def #{cmd_name}(*opts, &b)
        require "#{load_file}"
        arity = ExtendCommand::#{cmd_class}.instance_method(:execute).arity
        args = (1..(arity < 0 ? ~arity : arity)).map {|i| "arg" + i.to_s }
        args << "*opts" if arity < 0
        args << "&block"
        args = args.join(", ")
        line = __LINE__; eval %[
          def #{cmd_name}(\#{args})
            ExtendCommand::#{cmd_class}.execute(irb_context, \#{args})
          end
        ], nil, __FILE__, line
        send :#{cmd_name}, *opts, &b
      end
    ], nil, __FILE__, line
  else
    line = __LINE__; eval %Q[
      def #{cmd_name}(*opts, &b)
        ExtendCommand::#{cmd_class}.execute(irb_context, *opts, &b)
      end
    ], nil, __FILE__, line
  end

  for ali, flag in aliases
    @ALIASES.push [ali, cmd_name, flag]
  end
end
            
extend_object(obj) click to toggle source
 
               # File irb/extend-command.rb, line 179
def self.extend_object(obj)
  unless (class << obj; ancestors; end).include?(EXCB)
    super
    for ali, com, flg in @ALIASES
      obj.install_alias_method(ali, com, flg)
    end
  end
end
            
install_extend_commands() click to toggle source
 
               # File irb/extend-command.rb, line 108
def self.install_extend_commands
  for args in @EXTEND_COMMANDS
    def_extend_command(*args)
  end
end
            
irb_original_method_name(method_name) click to toggle source
 
               # File irb/extend-command.rb, line 175
def self.irb_original_method_name(method_name)
  "irb_" + method_name + "_org"
end
            

Public Instance Methods

install_alias_method(to, from, override = NO_OVERRIDE) click to toggle source

override = {NO_OVERRIDE, OVERRIDE_PRIVATE_ONLY, OVERRIDE_ALL}

 
               # File irb/extend-command.rb, line 155
def install_alias_method(to, from, override = NO_OVERRIDE)
  to = to.id2name unless to.kind_of?(String)
  from = from.id2name unless from.kind_of?(String)

  if override == OVERRIDE_ALL or
      (override == OVERRIDE_PRIVATE_ONLY) && !respond_to?(to) or
      (override == NO_OVERRIDE) &&  !respond_to?(to, true)
    target = self
    (class << self; self; end).instance_eval{
      if target.respond_to?(to, true) &&
          !target.respond_to?(EXCB.irb_original_method_name(to), true)
        alias_method(EXCB.irb_original_method_name(to), to)
      end
      alias_method to, from
    }
  else
    print "irb: warn: can't alias #{to} from #{from}.\n"
  end
end
            
irb_context() click to toggle source
 
               # File irb/extend-command.rb, line 26
def irb_context
  IRB.CurrentContext
end
            
irb_exit(ret = 0) click to toggle source
 
               # File irb/extend-command.rb, line 22
def irb_exit(ret = 0)
  irb_context.exit(ret)
end
            
irb_load(*opts, &b) click to toggle source
 
               # File irb/ext/use-loader.rb, line 22
def irb_load(*opts, &b)
  ExtendCommand::Load.execute(irb_context, *opts, &b)
end
            
irb_require(*opts, &b) click to toggle source
 
               # File irb/ext/use-loader.rb, line 25
def irb_require(*opts, &b)
  ExtendCommand::Require.execute(irb_context, *opts, &b)
end
            

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