# # irb/extend-command.rb - irb command extend # $Release Version: 0.7.3$ # $Revision: 1.1.1.1 $ # $Date: 2002/05/27 17:59:49 $ # by Keiju ISHITSUKA(keiju@ishitsuka.com) # # -- # # # module IRB # # IRB extended command # module ExtendCommand # include Loader def irb_exit(ret = 0) irb_context.exit(ret) end alias irb_quit irb_exit def irb_fork(&block) pid = send ExtendCommand.irb_original_method_name("fork") unless pid class<<self alias_method :exit, ExtendCommand.irb_original_method_name('exit') end if iterator? begin yield ensure exit end end end pid end def irb_change_binding(*main) irb_context.change_binding(*main) end alias irb_change_workspace irb_change_binding def irb_source(file) irb_context.source(file) end def irb(*obj) require "irb/multi-irb" IRB.irb(nil, *obj) end def irb_context IRB.conf[:MAIN_CONTEXT] end def irb_jobs require "irb/multi-irb" IRB.JobManager end def irb_fg(key) require "irb/multi-irb" IRB.JobManager.switch(key) end def irb_kill(*keys) require "irb/multi-irb" IRB.JobManager.kill(*keys) end # extend command functions def ExtendCommand.extend_object(obj) super unless (class<<obj;ancestors;end).include?(ExtendCommand) obj.install_aliases end end OVERRIDE_NOTHING = 0 OVERRIDE_PRIVATE_ONLY = 0x01 OVERRIDE_ALL = 0x02 def install_aliases(override = OVERRIDE_NOTHING) install_alias_method(:exit, :irb_exit, override | OVERRIDE_PRIVATE_ONLY) install_alias_method(:quit, :irb_quit, override | OVERRIDE_PRIVATE_ONLY) install_alias_method(:fork, :irb_fork, override | OVERRIDE_PRIVATE_ONLY) install_alias_method(:kill, :irb_kill, override | OVERRIDE_PRIVATE_ONLY) install_alias_method(:irb_cb, :irb_change_binding, override) install_alias_method(:irb_ws, :irb_change_workspace, override) install_alias_method(:source, :irb_source, override) install_alias_method(:conf, :irb_context, override) install_alias_method(:jobs, :irb_jobs, override) install_alias_method(:fg, :irb_fg, override) end # override = {OVERRIDE_NOTHING, OVERRIDE_PRIVATE_ONLY, OVERRIDE_ALL} def install_alias_method(to, from, override = OVERRIDE_NOTHING) 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 == OVERRIDE_NOTHING) && !respond_to?(to, true) target = self (class<<self;self;end).instance_eval{ if target.respond_to?(to, true) && !target.respond_to?(ExtendCommand.irb_original_method_name(to), true) alias_method(ExtendCommand.irb_original_method_name(to), to) end alias_method to, from } else print "irb: warn: can't alias #{to} from #{from}.\n" end end def self.irb_original_method_name(method_name) "irb_" + method_name + "_org" end end end