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view graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/template/TemplateParser.java @ 7291:a748e4d44694
Truffle API to specify type-specalized Node classes; annotation processor for automatic code generation of the type-specialized Node classes during the build process
author | Christian Humer <christian.humer@gmail.com> |
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date | Fri, 21 Dec 2012 10:44:31 -0800 |
parents | |
children | 6343a09b2ec1 |
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/* * Copyright (c) 2012, 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.truffle.codegen.processor.template; import java.util.*; import javax.lang.model.element.*; import javax.lang.model.util.*; import com.oracle.truffle.codegen.processor.*; import com.oracle.truffle.codegen.processor.api.element.*; import com.oracle.truffle.codegen.processor.ext.*; public abstract class TemplateParser<M extends Template> extends AbstractParser<M> { private final ExtensionParser extensionParser; public TemplateParser(ProcessorContext c) { super(c); extensionParser = new ExtensionParser(c); } public ExtensionParser getExtensionParser() { return extensionParser; } protected boolean verifyExclusiveMethodAnnotation(TypeElement type, Class<?> ... annotationTypes) { boolean valid = true; List<ExecutableElement> methods = ElementFilter.methodsIn(type.getEnclosedElements()); for (ExecutableElement method : methods) { List<AnnotationMirror> foundAnnotations = new ArrayList<>(); for (int i = 0; i < annotationTypes.length; i++) { Class<?> annotationType = annotationTypes[i]; AnnotationMirror mirror = Utils.findAnnotationMirror(context.getEnvironment(), method, annotationType); if (mirror != null) { foundAnnotations.add(mirror); } } if (foundAnnotations.size() > 1) { List<String> annotationNames = new ArrayList<>(); for (AnnotationMirror mirror : foundAnnotations) { annotationNames.add("@" + Utils.getSimpleName(mirror.getAnnotationType())); } for (AnnotationMirror mirror : foundAnnotations) { context.getLog().error(method, mirror, "Non exclusive usage of annotations %s.", annotationNames); } valid = false; } } return valid; } protected boolean verifyTemplateType(TypeElement template, AnnotationMirror annotation) { // annotation type on class path!? boolean valid = true; TypeElement annotationTypeElement = processingEnv.getElementUtils().getTypeElement(getAnnotationType().getCanonicalName()); if (annotationTypeElement == null) { log.error(template, annotation, "Required class " + getAnnotationType().getName() + " is not on the classpath."); valid = false; } if (template.getModifiers().contains(Modifier.PRIVATE)) { log.error(template, annotation, "The annotated class must have at least package protected visibility."); valid = false; } if (template.getModifiers().contains(Modifier.FINAL)) { log.error(template, annotation, "The annotated class must not be final."); valid = false; } return valid; } protected <E extends TemplateMethod> List<E> parseMethods(Template template, TemplateMethodParser<E> parser) { TypeElement type = template.getTemplateType(); List<ExecutableElement> methods = new ArrayList<>(); methods.addAll(ElementFilter.methodsIn(type.getEnclosedElements())); if (template.getExtensionElements() != null) { for (WritableElement e : template.getExtensionElements()) { if (e instanceof ExecutableElement) { methods.add((ExecutableElement) e); } } } List<E> parsedMethods = new ArrayList<>(); boolean valid = true; for (ExecutableElement method : methods) { AnnotationMirror mirror = Utils.findAnnotationMirror(processingEnv, method, parser.getAnnotationType()); if (mirror != null) { if (method.getModifiers().contains(Modifier.PRIVATE)) { log.error(method, "Methods annotated with @%s must not be private.", parser.getAnnotationType().getSimpleName()); valid = false; continue; } E parsedMethod = parser.parse(method, mirror, template); if (parsedMethod != null) { parsedMethods.add(parsedMethod); } else { valid = false; } } } if (!valid) { return null; } return parsedMethods; } }