# File lib/irb/extend-command.rb, line 116
116:     def self.def_extend_command(cmd_name, cmd_class, load_file = nil, *aliases)
117:       case cmd_class
118:       when Symbol
119:         cmd_class = cmd_class.id2name
120:       when String
121:       when Class
122:         cmd_class = cmd_class.name
123:       end
124: 
125:       if load_file
126:         eval %[
127:           def #{cmd_name}(*opts, &b)
128:             require "#{load_file}"
129:             eval %[
130:               def #{cmd_name}(*opts, &b)
131:                 ExtendCommand::#{cmd_class}.execute(irb_context, *opts, &b)
132:               end
133:             ]
134:             send :#{cmd_name}, *opts, &b
135:           end
136:         ]
137:       else
138:         eval %[
139:           def #{cmd_name}(*opts, &b)
140:             ExtendCommand::#{cmd_class}.execute(irb_context, *opts, &b)
141:           end
142:         ]
143:       end
144: 
145:       for ali, flag in aliases
146:         @ALIASES.push [ali, cmd_name, flag]
147:       end
148:     end

     # File lib/irb/extend-command.rb, line 175
175:     def self.extend_object(obj)
176:       unless (class<<obj;ancestors;end).include?(EXCB)
177:         super
178:         for ali, com, flg in @ALIASES
179:           obj.install_alias_method(ali, com, flg)
180:         end
181:       end
182:     end

     # File lib/irb/extend-command.rb, line 109
109:     def self.install_extend_commands
110:       for args in @EXTEND_COMMANDS
111:         def_extend_command(*args)
112:       end
113:     end

     # File lib/irb/extend-command.rb, line 171
171:     def self.irb_original_method_name(method_name)
172:       "irb_" + method_name + "_org"
173:     end

     # File lib/irb/extend-command.rb, line 151
151:     def install_alias_method(to, from, override = NO_OVERRIDE)
152:       to = to.id2name unless to.kind_of?(String)
153:       from = from.id2name unless from.kind_of?(String)
154: 
155:       if override == OVERRIDE_ALL or
156:           (override == OVERRIDE_PRIVATE_ONLY) && !respond_to?(to) or
157:           (override == NO_OVERRIDE) &&  !respond_to?(to, true)
158:         target = self
159:         (class<<self;self;end).instance_eval{
160:           if target.respond_to?(to, true) && 
161:               !target.respond_to?(EXCB.irb_original_method_name(to), true)
162:             alias_method(EXCB.irb_original_method_name(to), to) 
163:           end
164:           alias_method to, from
165:         }
166:       else
167:         print "irb: warn: can't alias #{to} from #{from}.\n"
168:       end
169:     end

    # File lib/irb/extend-command.rb, line 27
27:     def irb_context
28:       IRB.CurrentContext
29:     end

    # File lib/irb/extend-command.rb, line 23
23:     def irb_exit(ret = 0)
24:       irb_context.exit(ret)
25:     end

    # File lib/irb/ext/use-loader.rb, line 23
23:     def irb_load(*opts, &b)
24:       ExtendCommand::Load.execute(irb_context, *opts, &b)
25:     end

    # File lib/irb/ext/use-loader.rb, line 26
26:     def irb_require(*opts, &b)
27:       ExtendCommand::Require.execute(irb_context, *opts, &b)
28:     end