From 0dc342de848a642ecce8db697b8fecd83a63e117 Mon Sep 17 00:00:00 2001
From: yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 25 Aug 2008 15:02:05 +0000
Subject: added tag v1_9_0_4

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_9_0_4@18845 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 trunk/lib/e2mmap.rb | 172 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 172 insertions(+)
 create mode 100644 trunk/lib/e2mmap.rb

(limited to 'trunk/lib/e2mmap.rb')

diff --git a/trunk/lib/e2mmap.rb b/trunk/lib/e2mmap.rb
new file mode 100644
index 0000000000..b8d1d44f38
--- /dev/null
+++ b/trunk/lib/e2mmap.rb
@@ -0,0 +1,172 @@
+#
+#   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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