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# # e2mmap.rb - for ruby 1.1 # $Release Version: 2.0$ # $Revision: 1.10 $ # by Keiju ISHITSUKA # # -- # Usage: # # U1) # class Foo # extend Exception2MessageMapper # def_e2message ExistingExceptionClass, "message..." # def_exception :NewExceptionClass, "message..."[, superclass] # ... # end # # U2) # module Error # extend Exception2MessageMapper # def_e2meggage ExistingExceptionClass, "message..." # def_exception :NewExceptionClass, "message..."[, superclass] # ... # end # class Foo # include Error # ... # end # # foo = Foo.new # foo.Fail .... # # U3) # module Error # extend Exception2MessageMapper # def_e2message ExistingExceptionClass, "message..." # def_exception :NewExceptionClass, "message..."[, superclass] # ... # end # class Foo # extend Exception2MessageMapper # include Error # ... # end # # Foo.Fail NewExceptionClass, arg... # Foo.Fail ExistingExceptionClass, arg... # # module Exception2MessageMapper @RCS_ID='-$Id: e2mmap.rb,v 1.10 1999/02/17 12:33:17 keiju Exp keiju $-' E2MM = Exception2MessageMapper def E2MM.extend_object(cl) super cl.bind(self) unless cl < E2MM end def bind(cl) self.module_eval %[ def Raise(err = nil, *rest) Exception2MessageMapper.Raise(self.class, err, *rest) end alias Fail Raise def self.included(mod) mod.extend Exception2MessageMapper end ] end # Fail(err, *rest) # err: exception # rest: message arguments # def Raise(err = nil, *rest) E2MM.Raise(self, err, *rest) end alias Fail Raise alias fail Raise # def_e2message(c, m) # c: exception # m: message_form # define exception c with message m. # def def_e2message(c, m) E2MM.def_e2message(self, c, m) end # def_exception(n, m, s) # n: exception_name # m: message_form # s: superclass(default: StandardError) # define exception named ``c'' with message m. # def def_exception(n, m, s = StandardError) E2MM.def_exception(self, n, m, s) end # # Private definitions. # # {[class, exp] => message, ...} @MessageMap = {} # E2MM.def_e2message(k, e, m) # k: class to define exception under. # e: exception # m: message_form # define exception c with message m. # def E2MM.def_e2message(k, c, m) E2MM.instance_eval{@MessageMap[[k, c]] = m} c end # E2MM.def_exception(k, n, m, s) # k: class to define exception under. # n: exception_name # m: message_form # s: superclass(default: StandardError) # define exception named ``c'' with message m. # def E2MM.def_exception(k, n, m, s = StandardError) n = n.id2name if n.kind_of?(Fixnum) e = Class.new(s) E2MM.instance_eval{@MessageMap[[k, e]] = m} k.const_set(n, e) end # Fail(klass, err, *rest) # klass: class to define exception under. # err: exception # rest: message arguments # def E2MM.Raise(klass = E2MM, err = nil, *rest) if form = e2mm_message(klass, err) b = $@.nil? ? caller(1) : $@ #p $@ #p __FILE__ b.shift if b[0] =~ /^#{Regexp.quote(__FILE__)}:/ raise err, sprintf(form, *rest), b else E2MM.Fail E2MM, ErrNotRegisteredException, err.inspect end end class << E2MM alias Fail Raise end def E2MM.e2mm_message(klass, exp) for c in klass.ancestors if mes = @MessageMap[[c,exp]] #p mes m = klass.instance_eval('"' + mes + '"') return m end end nil end class << self alias message e2mm_message end E2MM.def_exception(E2MM, :ErrNotRegisteredException, "not registerd exception(%s)") end
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rbconfig | Folder | 0755 |
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rinda | Folder | 0755 |
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test | Folder | 0755 |
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uri | Folder | 0755 |
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vendor_ruby | Folder | 0755 |
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webrick | Folder | 0755 |
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date.rb | File | 946 B | 0644 |
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delegate.rb | File | 9.78 KB | 0644 |
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digest.rb | File | 2.24 KB | 0644 |
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dl.rb | File | 280 B | 0644 |
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drb.rb | File | 19 B | 0644 |
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e2mmap.rb | File | 3.8 KB | 0644 |
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weakref.rb | File | 3.23 KB | 0644 |
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