Update RDF::Literal::Decimal#round, #floor, #ceil to return integers along with RDF::Literal::Double variations. Previously, they returned the same type.

Author: gkellogg

lib/rdf/model/literal/decimal.rb

@@ -63,9 +63,9 @@ def abs
     ##
     # Returns the number with no fractional part that is closest to the argument. If there are two such numbers, then the one that is closest to positive infinity is returned. An error is raised if arg is not a numeric value.
     #
-    # @return [RDF::Literal]
+    # @return [RDF::Literal::Integer]
     def round
-      self.class.new(to_d.round)
+      RDF::Literal::Integer.new(to_d.round)
     end
 
     ##
@@ -74,7 +74,7 @@ def round
     # @example
     #   RDF::Literal(1).ceil            #=> RDF::Literal(1)
     #
-    # @return [RDF::Literal]
+    # @return [RDF::Literal::Integer]
     def ceil
       self.class.new(to_d.ceil)
     end
@@ -85,7 +85,7 @@ def ceil
     # @example
     #   RDF::Literal(1).floor            #=> RDF::Literal(1)
     #
-    # @return [RDF::Literal]
+    # @return [RDF::Literal::Integer]
     def floor
       self.class.new(to_d.floor)
     end

lib/rdf/model/literal/double.rb

@@ -142,33 +142,33 @@ def infinite?
     end
 
     ##
-    # Returns the smallest number greater than or equal to `self`.
+    # Returns the smallest integer greater than or equal to `self`.
     #
     # @example
     #   RDF::Literal(1.2).ceil            #=> RDF::Literal(2)
     #   RDF::Literal(-1.2).ceil           #=> RDF::Literal(-1)
     #   RDF::Literal(2.0).ceil            #=> RDF::Literal(2)
     #   RDF::Literal(-2.0).ceil           #=> RDF::Literal(-2)
     #
-    # @return [RDF::Literal]
+    # @return [RDF::Literal::Integer]
     # @since  0.2.3
     def ceil
-      self.class.new(to_f.ceil)
+      RDF::Literal::Integer.new(to_f.ceil)
     end
 
     ##
-    # Returns the largest number less than or equal to `self`.
+    # Returns the largest integer less than or equal to `self`.
     #
     # @example
     #   RDF::Literal(1.2).floor           #=> RDF::Literal(1)
     #   RDF::Literal(-1.2).floor          #=> RDF::Literal(-2)
     #   RDF::Literal(2.0).floor           #=> RDF::Literal(2)
     #   RDF::Literal(-2.0).floor          #=> RDF::Literal(-2)
     #
-    # @return [RDF::Literal]
+    # @return [RDF::Literal::Integer]
     # @since  0.2.3
     def floor
-      self.class.new(to_f.floor)
+      RDF::Literal::Integer.new(to_f.floor)
     end
 
     ##
@@ -181,11 +181,11 @@ def abs
     end
 
     ##
-    # Returns the number with no fractional part that is closest to the argument. If there are two such numbers, then the one that is closest to positive infinity is returned. An error is raised if arg is not a numeric value.
+    # Returns the integer with no fractional part that is closest to the argument. If there are two such numbers, then the one that is closest to positive infinity is returned. An error is raised if arg is not a numeric value.
     #
-    # @return [RDF::Literal]
+    # @return [RDF::Literal::Integer]
     def round
-      self.class.new(to_f.round)
+      RDF::Literal::Integer.new(to_f.round)
     end
 
     ##