--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/AbstractParser.java	Mon Jul 01 20:58:32 2013 +0200
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.truffle.dsl.processor;
+
+import java.lang.annotation.*;
+import java.util.*;
+
+import javax.annotation.processing.*;
+import javax.lang.model.element.*;
+import javax.tools.Diagnostic.Kind;
+
+import com.oracle.truffle.dsl.processor.template.*;
+
+/**
+ * THIS IS NOT PUBLIC API.
+ */
+public abstract class AbstractParser<M extends Template> {
+
+    protected final ProcessorContext context;
+    protected final ProcessingEnvironment processingEnv;
+    protected RoundEnvironment roundEnv;
+
+    protected final Log log;
+
+    public AbstractParser(ProcessorContext c) {
+        this.context = c;
+        this.processingEnv = c.getEnvironment();
+        this.log = c.getLog();
+    }
+
+    public final M parse(RoundEnvironment env, Element element) {
+        this.roundEnv = env;
+        M model = null;
+        try {
+            AnnotationMirror mirror = null;
+            if (getAnnotationType() != null) {
+                mirror = Utils.findAnnotationMirror(processingEnv, element.getAnnotationMirrors(), getAnnotationType());
+            }
+
+            if (!context.getTruffleTypes().verify(context, element, mirror)) {
+                return null;
+            }
+            model = parse(element, mirror);
+            if (model == null) {
+                return null;
+            }
+
+            model.emitMessages((TypeElement) element, log);
+            return filterErrorElements(model);
+        } catch (CompileErrorException e) {
+            log.message(Kind.WARNING, element, null, null, "The truffle processor could not parse class due to error: %s", e.getMessage());
+            return null;
+        } finally {
+            this.roundEnv = null;
+        }
+    }
+
+    protected M filterErrorElements(M model) {
+        return model.hasErrors() ? null : model;
+    }
+
+    protected abstract M parse(Element element, AnnotationMirror mirror);
+
+    public abstract Class<? extends Annotation> getAnnotationType();
+
+    public boolean isDelegateToRootDeclaredType() {
+        return false;
+    }
+
+    public List<Class<? extends Annotation>> getAllAnnotationTypes() {
+        List<Class<? extends Annotation>> list = new ArrayList<>();
+        if (getAnnotationType() != null) {
+            list.add(getAnnotationType());
+        }
+        list.addAll(getTypeDelegatedAnnotationTypes());
+        return list;
+    }
+
+    public List<Class<? extends Annotation>> getTypeDelegatedAnnotationTypes() {
+        return Collections.emptyList();
+    }
+
+}