Initial revision

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@8 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 55 insertions, 0 deletions

diff --git a/lib/ostruct.rb b/lib/ostruct.rb
new file mode 100644
index 0000000000..f083677d8e
--- /dev/null
+++ b/lib/ostruct.rb
@@ -0,0 +1,55 @@
+# ostruct.rb - Python Style Object
+#  just assign to create field
+#
+# s = OpenStruct.new
+# s.foo = 25
+# p s.foo
+# s.bar = 2
+# p s.bar
+# p s
+
+class OpenStruct
+  def initialize(hash=nil)
+    @table = {}
+    if hash
+      for k,v in hash
+	@table[k] = v
+      end
+    end
+  end
+
+  def method_missing(mid, *args)
+    mname = mid.id2name
+    len = args.length
+    if mname =~ /=$/
+      if len != 1
+	raise ArgumentError, "wrong # of arguments (#{len} for 1)", caller(1)
+      end
+      mname.chop!
+      @table[mname] = args[0]
+    elsif args.length == 0
+      @table[mname]
+    else
+      raise NameError, "undefined method `#{mname}'", caller(1)
+    end
+  end
+  
+  def delete_field(name)
+    if name.type == Fixnum
+      name = name.id2name
+    end
+    @table.delete name
+  end
+
+  def inspect
+    str = "<#{self.type}"
+    for k,v in @table
+      str += " "
+      str += k
+      str += "="
+      str += v.inspect
+    end
+    str += ">"
+    str
+  end
+end