module IRB::ExtendCommandBundle
Installs the default irb extensions command bundle.
Constants
- NO_OVERRIDE
See install_alias_method.
- OVERRIDE_ALL
See install_alias_method.
- OVERRIDE_PRIVATE_ONLY
See install_alias_method.
Public Class Methods
Evaluate the given cmd_name
on the given
cmd_class
Class.
Will also define any given aliases
for the method.
The optional load_file
parameter will be required within the
method definition.
# File lib/irb/extend-command.rb, line 144 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
Installs alias methods for the default irb commands on the given object using install_alias_method.
# File lib/irb/extend-command.rb, line 211 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
Installs the default irb commands:
irb_current_working_workspace
irb_change_workspace
irb_workspaces
irb_push_workspace
irb_pop_workspace
irb_load
irb_require
irb_source
irb
irb_jobs
irb_fg
irb_kill
irb_help
-
Command line options at IRB
# File lib/irb/extend-command.rb, line 132 def self.install_extend_commands for args in @EXTEND_COMMANDS def_extend_command(*args) end end
Public Instance Methods
Installs alias methods for the default irb commands, see ::install_extend_commands.
# File lib/irb/extend-command.rb, line 185 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
Displays current configuration.
Modifing the configuration is achieved by sending a message to IRB.conf.
# File lib/irb/extend-command.rb, line 35 def irb_context IRB.CurrentContext end
Quits the current irb context
ret
is the optional signal or message to send to IRB::Context#exit
Same as IRB.CurrentContext.exit
.
# File lib/irb/extend-command.rb, line 28 def irb_exit(ret = 0) irb_context.exit(ret) end
Loads the given file similarly to Kernel#load, see IRB::IrbLoader#irb_load
# File lib/irb/ext/use-loader.rb, line 23 def irb_load(*opts, &b) ExtendCommand::Load.execute(irb_context, *opts, &b) end
Loads the given file similarly to Kernel#require
# File lib/irb/ext/use-loader.rb, line 27 def irb_require(*opts, &b) ExtendCommand::Require.execute(irb_context, *opts, &b) end