| /* |
| * 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.replacements.verifier; |
| |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.Comparator; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.function.Function; |
| |
| import javax.annotation.processing.ProcessingEnvironment; |
| import javax.lang.model.element.Element; |
| import javax.lang.model.element.ElementKind; |
| import javax.lang.model.element.PackageElement; |
| import javax.lang.model.element.TypeElement; |
| import javax.lang.model.element.VariableElement; |
| import javax.lang.model.type.ArrayType; |
| import javax.lang.model.type.DeclaredType; |
| import javax.lang.model.type.TypeMirror; |
| import javax.lang.model.type.TypeVariable; |
| import javax.lang.model.type.WildcardType; |
| import javax.tools.Diagnostic; |
| import javax.tools.JavaFileObject; |
| |
| public class PluginGenerator { |
| |
| private final Map<Element, List<GeneratedPlugin>> plugins; |
| |
| public PluginGenerator() { |
| this.plugins = new HashMap<>(); |
| } |
| |
| public void addPlugin(GeneratedPlugin plugin) { |
| Element topLevel = getTopLevelClass(plugin.intrinsicMethod); |
| List<GeneratedPlugin> list = plugins.get(topLevel); |
| if (list == null) { |
| list = new ArrayList<>(); |
| plugins.put(topLevel, list); |
| } |
| list.add(plugin); |
| } |
| |
| public void generateAll(ProcessingEnvironment env) { |
| for (Entry<Element, List<GeneratedPlugin>> entry : plugins.entrySet()) { |
| disambiguateNames(entry.getValue()); |
| createPluginFactory(env, entry.getKey(), entry.getValue()); |
| } |
| } |
| |
| private static Element getTopLevelClass(Element element) { |
| Element prev = element; |
| Element enclosing = element.getEnclosingElement(); |
| while (enclosing != null && enclosing.getKind() != ElementKind.PACKAGE) { |
| prev = enclosing; |
| enclosing = enclosing.getEnclosingElement(); |
| } |
| return prev; |
| } |
| |
| private static void disambiguateWith(List<GeneratedPlugin> plugins, Function<GeneratedPlugin, String> genName) { |
| plugins.sort(Comparator.comparing(GeneratedPlugin::getPluginName)); |
| |
| GeneratedPlugin current = plugins.get(0); |
| String currentName = current.getPluginName(); |
| |
| for (int i = 1; i < plugins.size(); i++) { |
| GeneratedPlugin next = plugins.get(i); |
| if (currentName.equals(next.getPluginName())) { |
| if (current != null) { |
| current.setPluginName(genName.apply(current)); |
| current = null; |
| } |
| next.setPluginName(genName.apply(next)); |
| } else { |
| current = next; |
| currentName = current.getPluginName(); |
| } |
| } |
| } |
| |
| private static void appendSimpleTypeName(StringBuilder ret, TypeMirror type) { |
| switch (type.getKind()) { |
| case DECLARED: |
| DeclaredType declared = (DeclaredType) type; |
| TypeElement element = (TypeElement) declared.asElement(); |
| ret.append(element.getSimpleName()); |
| break; |
| case TYPEVAR: |
| appendSimpleTypeName(ret, ((TypeVariable) type).getUpperBound()); |
| break; |
| case WILDCARD: |
| appendSimpleTypeName(ret, ((WildcardType) type).getExtendsBound()); |
| break; |
| case ARRAY: |
| appendSimpleTypeName(ret, ((ArrayType) type).getComponentType()); |
| ret.append("Array"); |
| break; |
| default: |
| ret.append(type); |
| } |
| } |
| |
| private static void disambiguateNames(List<GeneratedPlugin> plugins) { |
| // if we have more than one method with the same name, disambiguate with the argument types |
| disambiguateWith(plugins, plugin -> { |
| StringBuilder ret = new StringBuilder(plugin.getPluginName()); |
| for (VariableElement param : plugin.intrinsicMethod.getParameters()) { |
| ret.append('_'); |
| appendSimpleTypeName(ret, param.asType()); |
| } |
| return ret.toString(); |
| }); |
| |
| // since we're using simple names for argument types, we could still have a collision |
| disambiguateWith(plugins, new Function<GeneratedPlugin, String>() { |
| |
| private int idx = 0; |
| |
| @Override |
| public String apply(GeneratedPlugin plugin) { |
| return plugin.getPluginName() + "_" + (idx++); |
| } |
| }); |
| } |
| |
| private static void createPluginFactory(ProcessingEnvironment env, Element topLevelClass, List<GeneratedPlugin> plugins) { |
| PackageElement pkg = (PackageElement) topLevelClass.getEnclosingElement(); |
| |
| String genClassName = "PluginFactory_" + topLevelClass.getSimpleName(); |
| |
| try { |
| JavaFileObject factory = env.getFiler().createSourceFile(pkg.getQualifiedName() + "." + genClassName, topLevelClass); |
| try (PrintWriter out = new PrintWriter(factory.openWriter())) { |
| out.printf("// CheckStyle: stop header check\n"); |
| out.printf("// CheckStyle: stop line length check\n"); |
| out.printf("// GENERATED CONTENT - DO NOT EDIT\n"); |
| out.printf("// GENERATORS: %s, %s\n", VerifierAnnotationProcessor.class.getName(), PluginGenerator.class.getName()); |
| out.printf("package %s;\n", pkg.getQualifiedName()); |
| out.printf("\n"); |
| createImports(out, plugins); |
| out.printf("\n"); |
| out.printf("@ServiceProvider(NodeIntrinsicPluginFactory.class)\n"); |
| out.printf("public class %s implements NodeIntrinsicPluginFactory {\n", genClassName); |
| for (GeneratedPlugin plugin : plugins) { |
| out.printf("\n"); |
| plugin.generate(env, out); |
| } |
| out.printf("\n"); |
| createPluginFactoryMethod(out, plugins); |
| out.printf("}\n"); |
| } |
| } catch (IOException e) { |
| env.getMessager().printMessage(Diagnostic.Kind.ERROR, e.getMessage()); |
| } |
| } |
| |
| protected static void createImports(PrintWriter out, List<GeneratedPlugin> plugins) { |
| out.printf("import jdk.vm.ci.meta.ResolvedJavaMethod;\n"); |
| out.printf("import org.graalvm.compiler.serviceprovider.ServiceProvider;\n"); |
| out.printf("\n"); |
| out.printf("import org.graalvm.compiler.nodes.ValueNode;\n"); |
| out.printf("import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext;\n"); |
| out.printf("import org.graalvm.compiler.nodes.graphbuilderconf.GeneratedInvocationPlugin;\n"); |
| out.printf("import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin;\n"); |
| out.printf("import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins;\n"); |
| out.printf("import org.graalvm.compiler.nodes.graphbuilderconf.NodeIntrinsicPluginFactory;\n"); |
| |
| HashSet<String> extra = new HashSet<>(); |
| for (GeneratedPlugin plugin : plugins) { |
| plugin.extraImports(extra); |
| } |
| if (!extra.isEmpty()) { |
| out.printf("\n"); |
| for (String i : extra) { |
| out.printf("import %s;\n", i); |
| } |
| } |
| } |
| |
| private static void createPluginFactoryMethod(PrintWriter out, List<GeneratedPlugin> plugins) { |
| out.printf(" @Override\n"); |
| out.printf(" public void registerPlugins(InvocationPlugins plugins, InjectionProvider injection) {\n"); |
| for (GeneratedPlugin plugin : plugins) { |
| plugin.register(out); |
| } |
| out.printf(" }\n"); |
| } |
| } |