2 # irb/extend-command.rb - irb command extend
3 # $Release Version: 0.7.3$
5 # $Date: 2002/02/01 06:36:22 $
6 # by Keiju ISHITSUKA(keiju@ishitsuka.com)
14 # IRB extended command
22 alias irb_quit irb_exit
25 pid = send ExtendCommand.irb_original_method_name("fork")
28 alias_method :exit, ExtendCommand.irb_original_method_name('exit')
41 def irb_change_binding(*main)
42 irb_context.change_binding(*main)
44 alias irb_change_workspace irb_change_binding
47 irb_context.source(file)
51 require "irb/multi-irb"
56 IRB.conf[:MAIN_CONTEXT]
60 require "irb/multi-irb"
65 require "irb/multi-irb"
66 IRB.JobManager.switch(key)
70 require "irb/multi-irb"
71 IRB.JobManager.kill(*keys)
74 # extend command functions
75 def ExtendCommand.extend_object(obj)
77 unless (class<<obj;ancestors;end).include?(ExtendCommand)
83 OVERRIDE_PRIVATE_ONLY = 0x01
86 def install_aliases(override = OVERRIDE_NOTHING)
88 install_alias_method(:exit, :irb_exit, override | OVERRIDE_PRIVATE_ONLY)
89 install_alias_method(:quit, :irb_quit, override | OVERRIDE_PRIVATE_ONLY)
90 install_alias_method(:fork, :irb_fork, override | OVERRIDE_PRIVATE_ONLY)
91 install_alias_method(:kill, :irb_kill, override | OVERRIDE_PRIVATE_ONLY)
93 install_alias_method(:irb_cb, :irb_change_binding, override)
94 install_alias_method(:irb_ws, :irb_change_workspace, override)
95 install_alias_method(:source, :irb_source, override)
96 install_alias_method(:conf, :irb_context, override)
97 install_alias_method(:jobs, :irb_jobs, override)
98 install_alias_method(:fg, :irb_fg, override)
101 # override = {OVERRIDE_NOTHING, OVERRIDE_PRIVATE_ONLY, OVERRIDE_ALL}
102 def install_alias_method(to, from, override = OVERRIDE_NOTHING)
103 to = to.id2name unless to.kind_of?(String)
104 from = from.id2name unless from.kind_of?(String)
106 if override == OVERRIDE_ALL or
107 (override == OVERRIDE_PRIVATE_ONLY) && !respond_to?(to) or
108 (override == OVERRIDE_NOTHING) && !respond_to?(to, true)
110 (class<<self;self;end).instance_eval{
111 if target.respond_to?(to, true) &&
112 !target.respond_to?(ExtendCommand.irb_original_method_name(to), true)
113 alias_method(ExtendCommand.irb_original_method_name(to), to)
115 alias_method to, from
118 print "irb: warn: can't alias #{to} from #{from}.\n"
122 def self.irb_original_method_name(method_name)
123 "irb_" + method_name + "_org"