From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <jari.vetoniemi@indooratlas.com>
Date: Mon, 16 Mar 2020 18:49:26 +0900
Subject: Fresh start

---
 jni/ruby/lib/e2mmap.rb | 172 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 172 insertions(+)
 create mode 100644 jni/ruby/lib/e2mmap.rb

(limited to 'jni/ruby/lib/e2mmap.rb')

diff --git a/jni/ruby/lib/e2mmap.rb b/jni/ruby/lib/e2mmap.rb
new file mode 100644
index 0000000..1eb5b51
--- /dev/null
+++ b/jni/ruby/lib/e2mmap.rb
@@ -0,0 +1,172 @@
+#
+#--
+#   e2mmap.rb - for Ruby 1.1
+#       $Release Version: 2.0$
+#       $Revision: 1.10 $
+#       by Keiju ISHITSUKA
+#
+#++
+#
+# Helper module for easily defining exceptions with predefined messages.
+#
+# == Usage
+#
+# 1.
+#   class Foo
+#     extend Exception2MessageMapper
+#     def_e2message ExistingExceptionClass, "message..."
+#     def_exception :NewExceptionClass, "message..."[, superclass]
+#     ...
+#   end
+#
+# 2.
+#   module Error
+#     extend Exception2MessageMapper
+#     def_e2message ExistingExceptionClass, "message..."
+#     def_exception :NewExceptionClass, "message..."[, superclass]
+#     ...
+#   end
+#   class Foo
+#     include Error
+#     ...
+#   end
+#
+#   foo = Foo.new
+#   foo.Fail ....
+#
+# 3.
+#   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
+
+  E2MM = Exception2MessageMapper # :nodoc:
+
+  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) : $@
+      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]]
+        m = klass.instance_eval('"' + mes + '"')
+        return m
+      end
+    end
+    nil
+  end
+  class << self
+    alias message e2mm_message
+  end
+
+  E2MM.def_exception(E2MM,
+                     :ErrNotRegisteredException,
+                     "not registered exception(%s)")
+end
+
+
-- 
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