Start handling simplification of interpolated strings and regexps.

brynary · Apr 4, 2012 · 95878e0 · 95878e0
1 parent 7cfd3b9
commit 95878e0
Show file tree

Hide file tree

Showing 2 changed files with 9 additions and 0 deletions.
diff --git a/lib/ripper_ruby_parser/sexp_handlers/literals.rb b/lib/ripper_ruby_parser/sexp_handlers/literals.rb
@@ -48,6 +48,9 @@ def process_regexp_literal exp
 
         if rest.empty?
           s(:lit, Regexp.new(string, numflags))
+        elsif rest.size == 1 and rest[0].sexp_type == :evstr and rest[0][1].sexp_type == :str
+          string += rest[0][1][1]
+          s(:lit, Regexp.new(string, numflags))
         else
           rest << numflags if numflags > 0
           sexp_type = if flags =~ /o/

diff --git a/test/unit/parser_literals_test.rb b/test/unit/parser_literals_test.rb
@@ -43,6 +43,12 @@
                                 s(:evstr,
                                   s(:call, nil, :bar, s(:arglist))), 16)
         end
+
+        describe "containing just a literal string" do
+          it "performs the interpolation when it is at the end" do
+            '/foo#{"bar"}/'.must_be_parsed_as s(:lit, /foobar/)
+          end
+        end
       end
     end
   end