1 /* 2 * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 package org.graalvm.compiler.core.test; 26 27 import java.lang.reflect.MalformedParametersException; 28 import java.lang.reflect.Method; 29 30 import org.graalvm.compiler.graph.Node; 31 import org.graalvm.compiler.graph.spi.CanonicalizerTool; 32 import org.graalvm.compiler.nodes.StructuredGraph; 33 import org.graalvm.compiler.nodes.java.MethodCallTargetNode; 34 import org.graalvm.compiler.nodes.spi.CoreProviders; 35 import org.graalvm.compiler.phases.VerifyPhase; 36 37 import jdk.vm.ci.meta.MetaAccessProvider; 38 import jdk.vm.ci.meta.ResolvedJavaMethod; 39 import jdk.vm.ci.meta.ResolvedJavaMethod.Parameter; 40 import jdk.vm.ci.meta.ResolvedJavaType; 41 42 /** 43 * {@link Node#getOptions()} is unsafe for use during canonicalization so try to verify that it 44 * isn't used when a {@link CanonicalizerTool} is available in the arguments. This is slightly more 45 * general but since there are several canonical methods with varying signatures this covers more 46 * cases. 47 */ 48 public class VerifyGetOptionsUsage extends VerifyPhase<CoreProviders> { 49 static Method lookupMethod(Class<?> klass, String name) { 50 for (Method m : klass.getDeclaredMethods()) { 51 if (m.getName().equals(name)) { 52 return m; 53 } 54 } 55 throw new InternalError(); 56 } 57 58 @Override 59 protected void verify(StructuredGraph graph, CoreProviders context) { 60 MetaAccessProvider metaAccess = context.getMetaAccess(); 61 ResolvedJavaType canonicalizerToolClass = metaAccess.lookupJavaType(CanonicalizerTool.class); 62 boolean hasTool = false; 63 ResolvedJavaMethod method = graph.method(); 64 try { 65 Parameter[] parameters = method.getParameters(); 66 if (parameters != null) { 67 for (ResolvedJavaMethod.Parameter parameter : parameters) { 68 if (parameter.getType().getName().equals(canonicalizerToolClass.getName())) { 69 hasTool = true; 70 break; 71 } 72 } 73 } 74 } catch (MalformedParametersException e) { 75 // Lambdas sometimes have malformed parameters so ignore this. 76 } 77 if (hasTool) { 78 ResolvedJavaMethod getOptionsMethod = metaAccess.lookupJavaMethod(lookupMethod(Node.class, "getOptions")); 79 for (MethodCallTargetNode t : graph.getNodes(MethodCallTargetNode.TYPE)) { 80 ResolvedJavaMethod callee = t.targetMethod(); 81 if (callee.equals(getOptionsMethod)) { 82 if (hasTool) { 83 throw new VerificationError("Must use CanonicalizerTool.getOptions() instead of Node.getOptions() in method '%s' of class '%s'.", 84 method.getName(), method.getDeclaringClass().getName()); 85 } 86 } 87 } 88 } 89 } 90 91 }