Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/LanguageRegistrationProcessor.java @ 21468:99942eac9c6d
Introducing TruffleVM - a central place to invoke code in any registered TruffleLanguage.
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Fri, 22 May 2015 13:41:10 +0200 |
parents | |
children | bb51b9a142b3 |
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/* * Copyright (c) 2012, 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 com.oracle.truffle.dsl.processor; import com.oracle.truffle.api.TruffleLanguage.Registration; import java.io.IOException; import java.io.OutputStream; import java.util.Properties; import java.util.Set; import javax.annotation.processing.AbstractProcessor; import javax.annotation.processing.RoundEnvironment; import javax.annotation.processing.SupportedAnnotationTypes; import javax.lang.model.SourceVersion; import javax.lang.model.element.Element; import javax.lang.model.element.ElementKind; import javax.lang.model.element.Modifier; import javax.lang.model.element.TypeElement; import javax.tools.Diagnostic.Kind; import javax.tools.FileObject; import javax.tools.StandardLocation; @SupportedAnnotationTypes("com.oracle.truffle.api.*") public final class LanguageRegistrationProcessor extends AbstractProcessor { @Override public SourceVersion getSupportedSourceVersion() { return SourceVersion.latest(); } private void createProviderFile(TypeElement language, Registration annotation) { String filename = "META-INF/truffle/language"; try { FileObject file = processingEnv.getFiler().createResource(StandardLocation.CLASS_OUTPUT, "", filename, language); Properties p = new Properties(); String className = processingEnv.getElementUtils().getBinaryName(language).toString(); p.setProperty("name", annotation.name()); p.setProperty("className", className); String[] mimes = annotation.mimeType(); for (int i = 0; i < mimes.length; i++) { p.setProperty("mimeType." + i, mimes[i]); } try (OutputStream os = file.openOutputStream()) { p.store(os, "Generated by " + LanguageRegistrationProcessor.class.getName()); } } catch (IOException e) { processingEnv.getMessager().printMessage(Kind.ERROR, e.getMessage(), language); } } @Override public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { for (Element e : roundEnv.getElementsAnnotatedWith(Registration.class)) { Registration annotation = e.getAnnotation(Registration.class); if (annotation != null && e.getKind() == ElementKind.CLASS) { if (!e.getModifiers().contains(Modifier.PUBLIC)) { processingEnv.getMessager().printMessage(Kind.ERROR, "Registered language class must be public", e); } createProviderFile((TypeElement) e, annotation); } } return true; } }