lib/domain/api.rb in domain-1.0.0.rc1 vs lib/domain/api.rb in domain-1.0.0.rc2

@@ -1,18 +1,8 @@
 module Domain
   module API
 
-    # Returns the domain predicate, nil if no such predicate
-    #
-    # @return [Proc]
-    #   the domain predicate (possibly nil)
-    #
-    # @api public
-    def predicate
-      nil
-    end
-
     # Returns the super domain of `self`.
     #
     # @return [Class]
     #   the super domain of `self` as a ruby class
     #
@@ -41,8 +31,21 @@
     #
     # @api public
     def super_domain_of?(dom)
       sub_domains.include?(dom)
     end
+
+    # Raises a type error for `args`.
+    #
+    # @param [Array] args
+    #   arguments passed to `new` or another factory method
+    # @raise TypeError
+    #
+    # @api protected
+    def domain_error!(first, *args)
+      first = [first]+args unless args.empty?
+      raise TypeError, "Can't convert `#{first.inspect}` into #{self}", caller
+    end
+    protected :domain_error!
 
   end # module API
 end # module Domain
\ No newline at end of file