src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/VerifyCallerSensitiveMethods.java
changeset 52910 583fd71c47d6
child 54084 84f10bbf993f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/VerifyCallerSensitiveMethods.java	Sat Dec 08 00:56:10 2018 -0800
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2013, 2018, 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.core.test;
+
+import static org.graalvm.compiler.serviceprovider.GraalServices.Java8OrEarlier;
+
+import java.lang.annotation.Annotation;
+
+import org.graalvm.compiler.nodes.Invoke;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.nodes.java.MethodCallTargetNode;
+import org.graalvm.compiler.phases.VerifyPhase;
+import org.graalvm.compiler.phases.tiers.PhaseContext;
+
+import jdk.vm.ci.meta.ResolvedJavaMethod;
+import jdk.vm.ci.meta.ResolvedJavaType;
+
+/**
+ * Verifies a method is annotated with CallerSensitive iff it calls Reflection#getCallerClass().
+ */
+public class VerifyCallerSensitiveMethods extends VerifyPhase<PhaseContext> {
+
+    Class<? extends Annotation> callerSensitiveClass;
+    Class<?> reflectionClass;
+
+    @Override
+    public boolean checkContract() {
+        return false;
+    }
+
+    @SuppressWarnings("unchecked")
+    public VerifyCallerSensitiveMethods() {
+        try {
+            ClassLoader classLoader = ClassLoader.getSystemClassLoader();
+            if (Java8OrEarlier) {
+                reflectionClass = classLoader.loadClass("sun.reflect.Reflection");
+                callerSensitiveClass = (Class<? extends Annotation>) classLoader.loadClass("sun.reflect.ConstantPool");
+            } else {
+                reflectionClass = classLoader.loadClass("jdk.internal.reflect.Reflection");
+                callerSensitiveClass = (Class<? extends Annotation>) classLoader.loadClass("jdk.internal.reflect.ConstantPool");
+            }
+        } catch (ClassNotFoundException e) {
+            throw new AssertionError(e);
+        }
+    }
+
+    @Override
+    protected boolean verify(StructuredGraph graph, PhaseContext context) {
+        Invoke invoke = callsReflectionGetCallerClass(graph, context);
+        Annotation annotation = graph.method().getAnnotation(callerSensitiveClass);
+        if (invoke != null) {
+            if (annotation == null) {
+                StackTraceElement e = graph.method().asStackTraceElement(invoke.bci());
+                throw new VerificationError(String.format("%s: method that calls Reflection.getCallerClass() must be annotated with @CallerSensitive", e));
+            }
+
+        } else if (annotation != null) {
+            throw new VerificationError(String.format("%s: method annotated with @CallerSensitive does not call Reflection.getCallerClass()", graph.method().format("%H.%n(%p)")));
+        }
+        return true;
+    }
+
+    private Invoke callsReflectionGetCallerClass(StructuredGraph graph, PhaseContext context) {
+        ResolvedJavaType reflectionType = context.getMetaAccess().lookupJavaType(reflectionClass);
+        for (MethodCallTargetNode t : graph.getNodes(MethodCallTargetNode.TYPE)) {
+            ResolvedJavaMethod callee = t.targetMethod();
+            if (callee.getDeclaringClass().equals(reflectionType)) {
+                if (callee.getName().equals("getCallerClass")) {
+                    return t.invoke();
+                }
+            }
+        }
+        return null;
+    }
+}