lib/parser/source/range.rb in parser-2.0.0.pre2 vs lib/parser/source/range.rb in parser-2.0.0.pre3

@@ -1,8 +1,11 @@
 module Parser
   module Source
 
+    ##
+    # @api public
+    #
     class Range
       attr_reader :source_buffer
       attr_reader :begin_pos, :end_pos
 
       def initialize(source_buffer, begin_pos, end_pos)
@@ -60,9 +63,13 @@
 
       def to_s
         line, column = @source_buffer.decompose_position(@begin_pos)
 
         [@source_buffer.name, line, column + 1].join(':')
+      end
+
+      def resize(new_size)
+        Range.new(@source_buffer, @begin_pos, @begin_pos + new_size)
       end
 
       def join(other)
         Range.new(@source_buffer,
             [@begin_pos, other.begin_pos].min,