--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.ruby.runtime/src/com/oracle/truffle/ruby/runtime/debug/RubyLineProbe.java	Wed Jan 08 14:03:36 2014 -0800
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2013, 2014 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.runtime.debug;
+
+import com.oracle.truffle.api.source.*;
+import com.oracle.truffle.ruby.runtime.*;
+
+/**
+ * A Ruby probe situated at a Ruby "line".
+ */
+public abstract class RubyLineProbe extends RubyProbe {
+
+    protected final SourceLineLocation location;
+
+    /**
+     * Creates a probe that will cause a halt just before child execution starts; a {@code oneShot}
+     * probe will remove itself the first time it halts.
+     */
+    public RubyLineProbe(RubyContext context, SourceLineLocation location, boolean oneShot) {
+        super(context, oneShot);
+        this.location = location;
+    }
+
+    public SourceLineLocation getLineLocation() {
+        return location;
+    }
+
+}