#map/#reduce will raise an error. Functional can be used like Enumerator. Version 0.0.1

README.md

@@ -9,4 +9,9 @@ Usage
 	require 'functional'
 	
 	obj = 0 .. 10**12
-	Functional.new( obj).select {|i| i.even? }.map {|i| i/3 }.select {|i| i.even? }.each &method( :puts)
+	Functional.new( obj).select {|i| i.even? }.collect {|i| i/3 }.select {|i| i.even? }.each &method( :puts)
+
+What's with _#map_?
+=================
+
+Do you know MapReduce?  In future #map will be used for MapReduce.  Use #collect.

VERSION

@@ -1 +1 @@
-0.0.0
+0.0.1

lib/functional.rb

@@ -21,12 +21,15 @@ class Functional
 		push_method "value=%s(value)", &exe
 	end
 
-=begin
 	# map/reduce?
 	def map &exe
-		push_method "value=%s(value)", &exe
+		raise "Reserved for MapReduce."
+	end
+
+	# map/reduce?
+	def reduce &exe
+		raise "Reserved for MapReduce."
 	end
-=end
 
 	def select &exe
 		push_method "%s(value)||next", &exe
@@ -36,12 +39,8 @@ class Functional
 		push_method "%s(value)&&next", &exe
 	end
 
-	def each obj, &exe
+	def each &exe
-		return Enumerator.new self, :each, obj  unless exe
+		return self  unless exe
-		obj.each &eval( "lambda{|value|#{@stack.join( ";")};exe.call(value)}")
+		@obj.send @func || :each, *@args, &eval( "lambda{|value|#{@stack.join( ";")};exe.call(value)}")
-	end
-
-	def inject obj, start, &exe
-		each( obj).inject start, &exe
 	end
 end