Mercurial > hg > graal-compiler
view graal/com.oracle.graal.nodeinfo.processor/src/com/oracle/graal/nodeinfo/processor/GraphNodeProcessor.java @ 21463:b1072d72fa2e
Lower checkcast arraycopy idiom after frame state assignment and convert arraycopy lowering into snippets
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
---|---|
date | Thu, 21 May 2015 22:20:41 -0700 |
parents | 4514065de564 |
children | 05183a084a08 |
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/* * Copyright (c) 2014, 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 com.oracle.graal.nodeinfo.processor; import static java.util.Collections.*; import java.io.*; import java.util.*; import java.util.stream.*; import javax.annotation.processing.*; import javax.lang.model.*; import javax.lang.model.element.*; import javax.lang.model.util.*; import javax.tools.Diagnostic.Kind; import com.oracle.graal.nodeinfo.*; @SupportedSourceVersion(SourceVersion.RELEASE_8) @SupportedAnnotationTypes({"com.oracle.graal.nodeinfo.NodeInfo"}) public class GraphNodeProcessor extends AbstractProcessor { @Override public SourceVersion getSupportedSourceVersion() { return SourceVersion.latest(); } /** * Node class currently being processed. */ private Element scope; public static boolean isEnclosedIn(Element e, Element scopeElement) { List<Element> elementHierarchy = getElementHierarchy(e); return elementHierarchy.contains(scopeElement); } void errorMessage(Element element, String format, Object... args) { message(Kind.ERROR, element, format, args); } void message(Kind kind, Element element, String format, Object... args) { if (scope != null && !isEnclosedIn(element, scope)) { // See https://bugs.eclipse.org/bugs/show_bug.cgi?id=428357#c1 List<Element> elementHierarchy = getElementHierarchy(element); reverse(elementHierarchy); String loc = elementHierarchy.stream().filter(e -> e.getKind() != ElementKind.PACKAGE).map(Object::toString).collect(Collectors.joining(".")); processingEnv.getMessager().printMessage(kind, String.format(loc + ": " + format, args), scope); } else { processingEnv.getMessager().printMessage(kind, String.format(format, args), element); } } private static List<Element> getElementHierarchy(Element e) { List<Element> elements = new ArrayList<>(); elements.add(e); Element enclosing = e.getEnclosingElement(); while (enclosing != null && enclosing.getKind() != ElementKind.PACKAGE) { elements.add(enclosing); enclosing = enclosing.getEnclosingElement(); } if (enclosing != null) { elements.add(enclosing); } return elements; } /** * Bugs in an annotation processor can cause silent failure so try to report any exception * throws as errors. */ private void reportException(Kind kind, Element element, Throwable t) { StringWriter buf = new StringWriter(); t.printStackTrace(new PrintWriter(buf)); buf.toString(); message(kind, element, "Exception thrown during processing: %s", buf.toString()); } ProcessingEnvironment getProcessingEnv() { return processingEnv; } boolean isNodeType(Element element) { if (element.getKind() != ElementKind.CLASS) { return false; } TypeElement type = (TypeElement) element; Types types = processingEnv.getTypeUtils(); while (type != null) { if (type.toString().equals("com.oracle.graal.graph.Node")) { return true; } type = (TypeElement) types.asElement(type.getSuperclass()); } return false; } @Override public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { if (roundEnv.processingOver()) { return false; } GraphNodeVerifier verifier = new GraphNodeVerifier(this); for (Element element : roundEnv.getElementsAnnotatedWith(NodeInfo.class)) { scope = element; try { if (!isNodeType(element)) { errorMessage(element, "%s can only be applied to Node subclasses", NodeInfo.class.getSimpleName()); continue; } NodeInfo nodeInfo = element.getAnnotation(NodeInfo.class); if (nodeInfo == null) { errorMessage(element, "Cannot get %s annotation from annotated element", NodeInfo.class.getSimpleName()); continue; } TypeElement typeElement = (TypeElement) element; Set<Modifier> modifiers = typeElement.getModifiers(); if (!modifiers.contains(Modifier.FINAL) && !modifiers.contains(Modifier.ABSTRACT)) { // TODO(thomaswue): Reenable this check. // errorMessage(element, "%s annotated class must be either final or abstract", // NodeInfo.class.getSimpleName()); // continue; } boolean found = false; for (Element e : typeElement.getEnclosedElements()) { if (e.getKind() == ElementKind.FIELD) { if (e.getSimpleName().toString().equals("TYPE")) { found = true; break; } } } if (!found) { errorMessage(element, "%s annotated class must have a field named TYPE", NodeInfo.class.getSimpleName()); } if (!typeElement.equals(verifier.Node) && !modifiers.contains(Modifier.ABSTRACT)) { verifier.verify(typeElement); } } catch (ElementException ee) { errorMessage(ee.element, ee.getMessage()); } catch (Throwable t) { reportException(isBug367599(t) ? Kind.NOTE : Kind.ERROR, element, t); } finally { scope = null; } } return false; } /** * Determines if a given exception is (most likely) caused by <a * href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=367599">Bug 367599</a>. */ public static boolean isBug367599(Throwable t) { if (t instanceof FilerException) { for (StackTraceElement ste : t.getStackTrace()) { if (ste.toString().contains("org.eclipse.jdt.internal.apt.pluggable.core.filer.IdeFilerImpl.create")) { // See: https://bugs.eclipse.org/bugs/show_bug.cgi?id=367599 return true; } } } if (t.getCause() != null) { return isBug367599(t.getCause()); } return false; } }