diff options
Diffstat (limited to 'lib/e2mmap.rb')
| -rw-r--r-- | lib/e2mmap.rb | 269 |
1 files changed, 167 insertions, 102 deletions
diff --git a/lib/e2mmap.rb b/lib/e2mmap.rb index bf860dc5c1..e04ed4a5b4 100644 --- a/lib/e2mmap.rb +++ b/lib/e2mmap.rb @@ -1,17 +1,46 @@ # # e2mmap.rb - for ruby 1.1 -# $Release Version: 1.2$ -# $Revision: 1.8 $ -# $Date: 1998/08/19 15:22:22 $ +# $Release Version: 2.0$ +# $Revision: 1.10 $ +# $Date: 1999/02/17 12:33:17 $ # by Keiju ISHITSUKA # # -- # Usage: # +# U1) # class Foo # extend Exception2MassageMapper +# def_e2message ExistingExceptionClass, "message..." # def_exception :NewExceptionClass, "message..."[, superclass] +# ... +# end +# +# U2) +# module Error +# extend Exception2MassageMapper # def_e2meggage ExistingExceptionClass, "message..." +# def_exception :NewExceptionClass, "message..."[, superclass] +# ... +# end +# class Foo +# include Exp +# ... +# end +# +# foo = Foo.new +# foo.Fail .... +# +# U3) +# module Error +# extend Exception2MassageMapper +# def_e2message ExistingExceptionClass, "message..." +# def_exception :NewExceptionClass, "message..."[, superclass] +# ... +# end +# class Foo +# extend Exception2MessageMapper +# include Error # ... # end # @@ -19,113 +48,149 @@ # Foo.Fail ExistingExceptionClass, arg... # # -if VERSION < "1.1" - require "e2mmap1_0.rb" -else +fail "Use Ruby 1.1" if VERSION < "1.1" + +module Exception2MessageMapper + @RCS_ID='-$Id: e2mmap.rb,v 1.10 1999/02/17 12:33:17 keiju Exp keiju $-' + + E2MM = Exception2MessageMapper + + def E2MM.extend_object(cl) + super + cl.bind(self) unless cl == E2MM + end - module Exception2MessageMapper - @RCS_ID='-$Id: e2mmap.rb,v 1.8 1998/08/19 15:22:22 keiju Exp keiju $-' - - E2MM = Exception2MessageMapper + # 以前との互換性のために残してある. + def E2MM.extend_to(b) + c = eval("self", b) + c.extend(self) + end - def E2MM.extend_object(cl) + def bind(cl) + self.module_eval %[ + def Raise(err = nil, *rest) + Exception2MessageMapper.Raise(self.type, err, *rest) + end + alias Fail Raise + + def self.append_features(mod) + super + mod.extend Exception2MessageMapper + end + ] + end + + # Fail(err, *rest) + # err: 例外 + # rest: メッセージに渡すパラメータ + # + def Raise(err = nil, *rest) + E2MM.Raise(self, err, *rest) + end + alias Fail Raise + + # 過去の互換性のため + alias fail! fail + def fail(err = nil, *rest) + begin + E2MM.Fail(self, err, *rest) + rescue E2MM::ErrNotRegisteredException super - cl.bind(self) end - - # backward compatibility - def E2MM.extend_to(b) - c = eval("self", b) - c.extend(self) - end - - # public :fail - alias fail! fail + end + class << self + public :fail + end - #def fail(err = nil, *rest) - # super - #end + + # def_e2message(c, m) + # c: exception + # m: message_form + # 例外cのメッセージをmとする. + # + def def_e2message(c, m) + E2MM.def_e2message(self, c, m) + end + + # def_exception(c, m) + # n: exception_name + # m: message_form + # s: 例外スーパークラス(デフォルト: StandardError) + # 例外名``c''をもつ例外を定義し, そのメッセージをmとする. + # + def def_exception(n, m, s = StandardError) + E2MM.def_exception(self, n, m, s) + end - def Fail(err = nil, *rest) - Exception2MessageMapper.Fail Exception2MessageMapper::ErrNotRegisteredException, err.inspect - end - - def bind(cl) - self.module_eval %q^ - E2MM_ErrorMSG = {} unless self.const_defined?(:E2MM_ErrorMSG) - # fail(err, *rest) - # err: Exception - # rest: Parameter accompanied with the exception - # - def self.Fail(err = nil, *rest) - if form = E2MM_ErrorMSG[err] - $! = err.new(sprintf(form, *rest)) - $@ = caller(0) if $@.nil? - $@.shift - # e2mm_fail() - raise() -# elsif self == Exception2MessageMapper -# fail Exception2MessageMapper::ErrNotRegisteredException, err.to_s - else -# print "super\n" - super - end - end + # + # Private definitions. + # + # {[class, exp] => message, ...} + @MessageMap = {} + + # E2MM.def_exception(k, e, m) + # k: 例外を定義するクラス + # e: exception + # m: message_form + # 例外cのメッセージをmとする. + # + def E2MM.def_e2message(k, c, m) + E2MM.instance_eval{@MessageMap[[k, c]] = m} + c + end + + # E2MM.def_exception(k, c, m) + # k: 例外を定義するクラス + # n: exception_name + # m: message_form + # s: 例外スーパークラス(デフォルト: StandardError) + # 例外名``c''をもつ例外を定義し, そのメッセージをmとする. + # + 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 - # 過去の互換性のため - def self.fail(err = nil, *rest) - if form = E2MM_ErrorMSG[err] - $! = err.new(sprintf(form, *rest)) - $@ = caller(0) if $@.nil? - $@.shift - # e2mm_fail() - raise() -# elsif self == Exception2MessageMapper -# fail Exception2MessageMapper::ErrNotRegisteredException, err.to_s - else -# print "super\n" - super - end - end - class << self - public :fail - end - - # def_exception(c, m) - # c: exception - # m: message_form - # - def self.def_e2message(c, m) - E2MM_ErrorMSG[c] = m - end - - # def_exception(c, m) - # n: exception_name - # m: message_form - # s: superclass_of_exception (default: Exception) - # defines excaption named ``c'', whose message is ``m''. - # - #def def_exception(n, m) - def self.def_exception(n, m, s = nil) - n = n.id2name if n.kind_of?(Fixnum) - unless s - if defined?(StandardError) - s = StandardError - else - s = Exception - end - end - e = Class.new(s) + # Fail(klass, err, *rest) + # klass: 例外の定義されているクラス + # err: 例外 + # rest: メッセージに渡すパラメータ + # + def E2MM.Raise(klass = E2MM, err = nil, *rest) + if form = e2mm_message(klass, err) + $! = err.new(sprintf(form, *rest)) + $@ = caller(1) if $@.nil? + #p $@ + #p __FILE__ + $@.shift if $@[0] =~ /^#{Regexp.quote(__FILE__)}:/ + raise + else + E2MM.Fail E2MM, ErrNotRegisteredException, err.inspect + end + end + class <<E2MM + alias Fail Raise + end - const_set(n, e) - E2MM_ErrorMSG[e] = m - # const_get(:E2MM_ErrorMSG)[e] = m - 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 - - extend E2MM - def_exception(:ErrNotClassOrModule, "Not Class or Module") - def_exception(:ErrNotRegisteredException, "not registerd exception(%s)") end + nil + end + class <<self + alias message e2mm_message + end + + E2MM.def_exception(E2MM, + :ErrNotRegisteredException, + "not registerd exception(%s)") end + + |