Mercurial > hg > graal-compiler
diff 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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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/template/TemplateParser.java Fri Dec 21 10:44:31 2012 -0800 @@ -0,0 +1,133 @@ +/* + * 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; + } + + +}