[Truffle] Initial implementation of Regexp.{quote,escape}.

core/src/main/java/org/jruby/truffle/nodes/core/RegexpNodes.java

@@ -25,8 +25,11 @@
 import org.jruby.truffle.runtime.core.RubyNilClass;
 import org.jruby.truffle.runtime.core.RubyRegexp;
 import org.jruby.truffle.runtime.core.RubyString;
+import org.jruby.truffle.runtime.core.RubySymbol;
 import org.jruby.util.ByteList;
 
+import static org.jruby.util.StringSupport.CR_7BIT;
+
 @CoreClass(name = "Regexp")
 public abstract class RegexpNodes {
 
@@ -342,6 +345,35 @@ public int options(RubyRegexp regexp) {
 
     }
 
+    @CoreMethod(names = { "quote", "escape" }, needsSelf = false, onSingleton = true, required = 1)
+    public abstract static class QuoteNode extends CoreMethodNode {
+
+        public QuoteNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public QuoteNode(QuoteNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public RubyString quote(RubyString raw) {
+            notDesignedForCompilation();
+
+            boolean isAsciiOnly = raw.getByteList().getEncoding().isAsciiCompatible() && raw.scanForCodeRange() == CR_7BIT;
+
+            return getContext().makeString(org.jruby.RubyRegexp.quote19(raw.getBytes(), isAsciiOnly));
+        }
+
+        @Specialization
+        public RubyString quote(RubySymbol raw) {
+            notDesignedForCompilation();
+
+            return quote(raw.toRubyString());
+        }
+
+    }
+
     @CoreMethod(names = "source")
     public abstract static class SourceNode extends CoreMethodNode {
 

spec/truffle/tags/core/regexp/quote_tags.txt

@@ -1,5 +1,3 @@
-fails:Regexp.quote escapes any characters with special meaning in a regular expression
-fails:Regexp.quote works with symbols
 fails:Regexp.quote sets the encoding of the result to US-ASCII if there are only US-ASCII characters present in the input String
 fails:Regexp.quote sets the encoding of the result to the encoding of the String if any non-US-ASCII characters are present in an input String with valid encoding
 fails:Regexp.quote sets the encoding of the result to ASCII-8BIT if any non-US-ASCII characters are present in an input String with invalid encoding