--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/core/SymbolNodes.java	Tue Jan 07 18:53:04 2014 +0100
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
+ * code is released under a tri EPL/GPL/LGPL license. You can use it,
+ * redistribute it and/or modify it under the terms of the:
+ *
+ * Eclipse Public License version 1.0
+ * GNU General Public License version 2
+ * GNU Lesser General Public License version 2.1
+ */
+package com.oracle.truffle.ruby.nodes.core;
+
+import com.oracle.truffle.api.*;
+import com.oracle.truffle.api.dsl.*;
+import com.oracle.truffle.ruby.runtime.*;
+import com.oracle.truffle.ruby.runtime.core.*;
+
+@CoreClass(name = "Symbol")
+public abstract class SymbolNodes {
+
+    @CoreMethod(names = {"==", "==="}, minArgs = 1, maxArgs = 1)
+    public abstract static class EqualNode extends CoreMethodNode {
+
+        public EqualNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public EqualNode(EqualNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public boolean equal(@SuppressWarnings("unused") RubyString a, @SuppressWarnings("unused") NilPlaceholder b) {
+            return false;
+        }
+
+        @Specialization
+        public boolean equal(RubySymbol a, RubySymbol b) {
+            return a.toString().equals(b.toString());
+        }
+
+        @Specialization
+        public boolean equal(RubySymbol a, RubyString b) {
+            return a.toString().equals(b.toString());
+        }
+
+        @Specialization
+        public boolean equal(RubySymbol a, int b) {
+            return a.toString().equals(Integer.toString(b));
+        }
+
+    }
+
+    @CoreMethod(names = "empty?", maxArgs = 0)
+    public abstract static class EmptyNode extends CoreMethodNode {
+
+        public EmptyNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public EmptyNode(EmptyNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public boolean empty(RubySymbol symbol) {
+            return symbol.toString().isEmpty();
+        }
+
+    }
+
+    @CoreMethod(names = "to_proc", maxArgs = 0)
+    public abstract static class ToProcNode extends CoreMethodNode {
+
+        public ToProcNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public ToProcNode(ToProcNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public RubyProc toProc(RubySymbol symbol) {
+            // TODO(CS): this should be doing all kinds of caching
+            return symbol.toProc();
+        }
+    }
+
+    @CoreMethod(names = "to_sym", maxArgs = 0)
+    public abstract static class ToSymNode extends CoreMethodNode {
+
+        public ToSymNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public ToSymNode(ToSymNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public RubySymbol toSym(RubySymbol symbol) {
+            return symbol;
+        }
+
+    }
+
+}