| /* |
| * Copyright (c) 2017, 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.phases.verify; |
| |
| import java.lang.reflect.MalformedParametersException; |
| import java.lang.reflect.Method; |
| |
| import org.graalvm.compiler.graph.Node; |
| import org.graalvm.compiler.graph.spi.CanonicalizerTool; |
| 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.MetaAccessProvider; |
| import jdk.vm.ci.meta.ResolvedJavaMethod; |
| import jdk.vm.ci.meta.ResolvedJavaType; |
| |
| /** |
| * {@link Node#getOptions()} is unsafe for use during canonicalization so try to verify that it |
| * isn't used when a {@link CanonicalizerTool} is available in the arguments. This is slightly more |
| * general but since there are several canonical methods with varying signatures this covers more |
| * cases. |
| */ |
| public class VerifyGetOptionsUsage extends VerifyPhase<PhaseContext> { |
| static Method lookupMethod(Class<?> klass, String name) { |
| for (Method m : klass.getDeclaredMethods()) { |
| if (m.getName().equals(name)) { |
| return m; |
| } |
| } |
| throw new InternalError(); |
| } |
| |
| @Override |
| protected boolean verify(StructuredGraph graph, PhaseContext context) { |
| MetaAccessProvider metaAccess = context.getMetaAccess(); |
| ResolvedJavaType canonicalizerToolClass = metaAccess.lookupJavaType(CanonicalizerTool.class); |
| boolean hasTool = false; |
| try { |
| for (ResolvedJavaMethod.Parameter parameter : graph.method().getParameters()) { |
| if (parameter.getType().getName().equals(canonicalizerToolClass.getName())) { |
| hasTool = true; |
| break; |
| } |
| } |
| } catch (MalformedParametersException e) { |
| // Lambdas sometimes have malformed parameters so ignore this. |
| } |
| if (hasTool) { |
| ResolvedJavaMethod getOptionsMethod = metaAccess.lookupJavaMethod(lookupMethod(Node.class, "getOptions")); |
| for (MethodCallTargetNode t : graph.getNodes(MethodCallTargetNode.TYPE)) { |
| ResolvedJavaMethod callee = t.targetMethod(); |
| if (callee.equals(getOptionsMethod)) { |
| if (hasTool) { |
| throw new VerificationError("Must use CanonicalizerTool.getOptions() instead of Node.getOptions() in method '%s' of class '%s'.", |
| graph.method().getName(), graph.method().getDeclaringClass().getName()); |
| } |
| } |
| } |
| } |
| |
| return true; |
| } |
| |
| } |