--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/truffle/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/TypeSystemMethodParser.java	Wed Jun 17 10:58:08 2015 +0200
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2012, 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.parser;
+
+import javax.lang.model.element.*;
+import javax.lang.model.type.*;
+
+import com.oracle.truffle.dsl.processor.*;
+import com.oracle.truffle.dsl.processor.java.*;
+import com.oracle.truffle.dsl.processor.model.*;
+
+abstract class TypeSystemMethodParser<E extends TemplateMethod> extends TemplateMethodParser<TypeSystemData, E> {
+
+    public TypeSystemMethodParser(ProcessorContext context, TypeSystemData typeSystem) {
+        super(context, typeSystem);
+    }
+
+    @Override
+    public final boolean isParsable(ExecutableElement method) {
+        return ElementUtils.findAnnotationMirror(getContext().getEnvironment(), method, getAnnotationType()) != null;
+    }
+
+    protected final TypeMirror resolveCastOrCheck(TemplateMethod method) {
+        Class<?> annotationType = getAnnotationType();
+        TypeMirror targetTypeMirror = ElementUtils.getAnnotationValue(TypeMirror.class, method.getMessageAnnotation(), "value");
+        if (!method.getMethod().getModifiers().contains(Modifier.PUBLIC) || !method.getMethod().getModifiers().contains(Modifier.STATIC)) {
+            method.addError("@%s annotated method %s must be public and static.", annotationType.getSimpleName(), method.getMethodName());
+        }
+        return targetTypeMirror;
+    }
+
+}