--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/ImportGuardsTest.java	Thu Aug 14 16:49:18 2014 +0200
@@ -0,0 +1,168 @@
+/*
+ * Copyright (c) 2012, 2013, 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.api.dsl.test;
+
+import static com.oracle.truffle.api.dsl.test.TestHelper.*;
+
+import org.junit.*;
+
+import com.oracle.truffle.api.dsl.*;
+import com.oracle.truffle.api.dsl.test.ImportGuardsTestFactory.ImportGuards6Factory;
+import com.oracle.truffle.api.dsl.test.TypeSystemTest.ValueNode;
+
+public class ImportGuardsTest {
+
+    @ImportGuards(Imports0.class)
+    @NodeChild("a")
+    static class ImportGuards0 extends ValueNode {
+
+        @Specialization(guards = "staticGuard")
+        int f0(int a) {
+            return a;
+        }
+    }
+
+    @NodeChild("a")
+    @ImportGuards(Imports0.class)
+    static class ImportGuards1 extends ValueNode {
+
+        @ExpectError("No compatible guard with method name 'nonStaticGuard' found. Please note that all signature types of the method guard must be declared in the type system.")
+        @Specialization(guards = "nonStaticGuard")
+        int f1(int a) {
+            return a;
+        }
+
+        @ExpectError("No compatible guard with method name 'protectedGuard' found. Please note that all signature types of the method guard must be declared in the type system.")
+        @Specialization(guards = "protectedGuard")
+        int f2(int a) {
+            return a;
+        }
+
+        @ExpectError("No compatible guard with method name 'packageGuard' found. Please note that all signature types of the method guard must be declared in the type system.")
+        @Specialization(guards = "packageGuard")
+        int f3(int a) {
+            return a;
+        }
+
+        @ExpectError("No compatible guard with method name 'privateGuard' found. Please note that all signature types of the method guard must be declared in the type system.")
+        @Specialization(guards = "privateGuard")
+        int f4(int a) {
+            return a;
+        }
+    }
+
+    public static class Imports0 {
+        public static boolean staticGuard(int a) {
+            return a == 0;
+        }
+
+        public boolean nonStaticGuard(int a) {
+            return a == 0;
+        }
+
+        protected static boolean protectedGuard(int a) {
+            return a == 0;
+        }
+
+        static boolean packageGuard(int a) {
+            return a == 0;
+        }
+
+        @SuppressWarnings("unused")
+        private static boolean privateGuard(int a) {
+            return a == 0;
+        }
+
+    }
+
+    @ExpectError("The specified import guard class 'com.oracle.truffle.api.dsl.test.ImportGuardsTest.Imports1' must be public.")
+    @NodeChild("a")
+    @ImportGuards(Imports1.class)
+    static class ImportGuards2 extends ValueNode {
+
+        int do1(int a) {
+            return a;
+        }
+    }
+
+    static class Imports1 {
+
+    }
+
+    @ExpectError("The specified import guard class 'com.oracle.truffle.api.dsl.test.ImportGuardsTest.Imports2' must be public.")
+    @NodeChild("a")
+    @ImportGuards(Imports2.class)
+    static class ImportGuards3 extends ValueNode {
+
+        int do1(int a) {
+            return a;
+        }
+    }
+
+    @ExpectError("The specified import guard class 'boolean' is not a declared type.")
+    @NodeChild("a")
+    @ImportGuards(boolean.class)
+    static class ImportGuards4 extends ValueNode {
+
+        int do1(int a) {
+            return a;
+        }
+    }
+
+    private static class Imports2 {
+
+    }
+
+    @ExpectError("At least import guard classes must be specified.")
+    @NodeChild("a")
+    @ImportGuards({})
+    static class ImportGuards5 extends ValueNode {
+
+        int do1(int a) {
+            return a;
+        }
+    }
+
+    @Test
+    public void testImportGuards6() {
+        // should use the guar declared in the node instead of the imported one.
+        assertRuns(ImportGuards6Factory.getInstance(), //
+                        array(1, 1), //
+                        array(1, 1));
+    }
+
+    @ImportGuards(Imports0.class)
+    @NodeChild("a")
+    static class ImportGuards6 extends ValueNode {
+
+        static boolean staticGuard(int a) {
+            return a == 1;
+        }
+
+        @Specialization(guards = "staticGuard")
+        int f0(int a) {
+            return a;
+        }
+    }
+
+}