[Truffle] Implemented String#[Regexp].

jruby · Feb 9, 2015 · b40c330 · b40c330
1 parent 1027a1e
commit b40c330
Showing 2 changed files with 13 additions and 3 deletions.
diff --git a/spec/truffle/tags/core/string/element_reference_tags.txt b/spec/truffle/tags/core/string/element_reference_tags.txt
@@ -7,12 +7,9 @@ fails:String#[] with Range always taints resulting strings when self is tainted
 fails:String#[] with Range returns subclass instances
 fails:String#[] with Range calls to_int on range arguments
 fails:String#[] with Range works with Range subclasses
-fails:String#[] with Regexp returns the matching portion of self
-fails:String#[] with Regexp returns nil if there is no match
 fails:String#[] with Regexp always taints resulting strings when self or regexp is tainted
 fails:String#[] with Regexp returns an untrusted string if the regexp is untrusted
 fails:String#[] with Regexp returns subclass instances
-fails:String#[] with Regexp sets $~ to MatchData when there is a match and nil when there's none
 fails:String#[] with Regexp, index returns the capture for the given index
 fails:String#[] with Regexp, index always taints resulting strings when self or regexp is tainted
 fails:String#[] with Regexp, index returns an untrusted string if the regexp is untrusted

diff --git a/truffle/src/main/java/org/jruby/truffle/nodes/core/StringNodes.java b/truffle/src/main/java/org/jruby/truffle/nodes/core/StringNodes.java
@@ -313,6 +313,19 @@ public Object slice(RubyString string, int start, int length) {
             }
         }
 
+        @Specialization
+        public Object slice(RubyString string, RubyRegexp regexp, UndefinedPlaceholder capture) {
+            notDesignedForCompilation();
+
+            final Object matchData = regexp.matchCommon(string.getBytes(), false, false);
+
+            if (matchData == getContext().getCoreLibrary().getNilObject()) {
+                return matchData;
+            }
+
+            return ((RubyMatchData) matchData).getValues()[0];
+        }
+
     }
 
     @CoreMethod(names = "[]=", required = 2, lowerFixnumParameters = 0)