src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/graphbuilderconf/GeneratedInvocationPlugin.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/graphbuilderconf/GeneratedInvocationPlugin.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2015, 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 org.graalvm.compiler.nodes.graphbuilderconf;
+
+import java.lang.reflect.Method;
+
+import org.graalvm.compiler.debug.GraalError;
+import org.graalvm.compiler.nodes.ValueNode;
+
+import jdk.vm.ci.meta.MetaAccessProvider;
+import jdk.vm.ci.meta.ResolvedJavaMethod;
+import jdk.vm.ci.meta.ResolvedJavaType;
+
+public abstract class GeneratedInvocationPlugin implements InvocationPlugin {
+
+ @Override
+ public abstract boolean execute(GraphBuilderContext b, ResolvedJavaMethod targetMethod, InvocationPlugin.Receiver receiver, ValueNode[] args);
+
+ @Override
+ public StackTraceElement getApplySourceLocation(MetaAccessProvider metaAccess) {
+ Class<?> c = getClass();
+ for (Method m : c.getDeclaredMethods()) {
+ if (m.getName().equals("execute")) {
+ return metaAccess.lookupJavaMethod(m).asStackTraceElement(0);
+ }
+ }
+ throw new GraalError("could not find method named \"execute\" in " + c.getName());
+ }
+
+ protected boolean checkInjectedArgument(GraphBuilderContext b, ValueNode arg, ResolvedJavaMethod foldAnnotatedMethod) {
+ if (arg.isNullConstant()) {
+ return true;
+ }
+
+ MetaAccessProvider metaAccess = b.getMetaAccess();
+ ResolvedJavaMethod executeMethod = metaAccess.lookupJavaMethod(getExecuteMethod());
+ ResolvedJavaType thisClass = metaAccess.lookupJavaType(getClass());
+ ResolvedJavaMethod thisExecuteMethod = thisClass.resolveConcreteMethod(executeMethod, thisClass);
+ if (b.getMethod().equals(thisExecuteMethod)) {
+ // The "execute" method of this plugin is itself being compiled. In (only) this context,
+ // the injected argument of the call to the @Fold annotated method will be non-null.
+ return true;
+ }
+ throw new AssertionError("must pass null to injected argument of " + foldAnnotatedMethod.format("%H.%n(%p)") + ", not " + arg);
+ }
+
+ private static Method getExecuteMethod() {
+ try {
+ return GeneratedInvocationPlugin.class.getMethod("execute", GraphBuilderContext.class, ResolvedJavaMethod.class, InvocationPlugin.Receiver.class, ValueNode[].class);
+ } catch (NoSuchMethodException | SecurityException e) {
+ throw new GraalError(e);
+ }
+ }
+}