Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/AnnotationProcessor.java @ 16764:f9fff060dc41
Truffle-DSL: fixed behaviour of insertBefore to be more intuitive.
author | Christian Humer <christian.humer@gmail.com> |
---|---|
date | Mon, 11 Aug 2014 16:37:40 +0200 |
parents | 23415229349b |
children | 45c8f64978d6 |
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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.dsl.processor; import java.io.*; import java.util.*; import javax.annotation.processing.*; import javax.lang.model.element.*; import javax.lang.model.type.*; import javax.tools.*; import com.oracle.truffle.dsl.processor.generator.*; import com.oracle.truffle.dsl.processor.java.*; import com.oracle.truffle.dsl.processor.java.compiler.*; import com.oracle.truffle.dsl.processor.java.model.*; import com.oracle.truffle.dsl.processor.java.transform.*; import com.oracle.truffle.dsl.processor.model.*; import com.oracle.truffle.dsl.processor.parser.*; /** * THIS IS NOT PUBLIC API. */ class AnnotationProcessor<M extends Template> { private final AbstractParser<M> parser; private final AbstractCompilationUnitFactory<M> factory; private final Set<String> processedElements = new HashSet<>(); public AnnotationProcessor(AbstractParser<M> parser, AbstractCompilationUnitFactory<M> factory) { this.parser = parser; this.factory = factory; } public AbstractParser<M> getParser() { return parser; } @SuppressWarnings({"unchecked"}) public void process(Element element, boolean callback) { // since it is not guaranteed to be called only once by the compiler // we check for already processed elements to avoid errors when writing files. if (!callback && element instanceof TypeElement) { String qualifiedName = ElementUtils.getQualifiedName((TypeElement) element); if (processedElements.contains(qualifiedName)) { return; } processedElements.add(qualifiedName); } ProcessorContext context = ProcessorContext.getInstance(); TypeElement type = (TypeElement) element; M model = (M) context.getTemplate(type.asType(), false); boolean firstRun = !context.containsTemplate(type); if (firstRun || !callback) { context.registerTemplate(type, null); model = parser.parse(element); context.registerTemplate(type, model); if (model != null) { CodeCompilationUnit unit = factory.process(null, model); unit.setGeneratorAnnotationMirror(model.getTemplateTypeAnnotation()); unit.setGeneratorElement(model.getTemplateType()); DeclaredType overrideType = (DeclaredType) context.getType(Override.class); DeclaredType unusedType = (DeclaredType) context.getType(SuppressWarnings.class); unit.accept(new GenerateOverrideVisitor(overrideType), null); unit.accept(new FixWarningsVisitor(context, unusedType, overrideType), null); if (!callback) { unit.accept(new CodeWriter(context.getEnvironment(), element), null); } } } } private static class CodeWriter extends AbstractCodeWriter { private final Element originalElement; private final ProcessingEnvironment env; public CodeWriter(ProcessingEnvironment env, Element originalElement) { this.env = env; this.originalElement = originalElement; } @Override protected Writer createWriter(CodeTypeElement clazz) throws IOException { JavaFileObject jfo = env.getFiler().createSourceFile(clazz.getQualifiedName(), originalElement); return new BufferedWriter(jfo.openWriter()); } @Override protected void writeHeader() { if (env == null) { return; } String comment = CompilerFactory.getCompiler(originalElement).getHeaderComment(env, originalElement); if (comment != null) { writeLn(comment); } } } }