Mercurial > hg > graal-jvmci-8
view graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/TemplateMethodParser.java @ 18758:3912400fc33a
Truffle-DSL: remove type system singleton
author | Christian Humer <christian.humer@gmail.com> |
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date | Mon, 29 Dec 2014 23:38:42 +0100 |
parents | 2db61eddcb97 |
children | 62c43fcf5be2 |
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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.parser; import java.lang.annotation.*; import java.util.*; import javax.lang.model.element.*; import javax.lang.model.type.*; import javax.lang.model.util.*; import com.oracle.truffle.dsl.processor.*; import com.oracle.truffle.dsl.processor.java.*; import com.oracle.truffle.dsl.processor.model.*; public abstract class TemplateMethodParser<T extends Template, E extends TemplateMethod> { protected final T template; private final ProcessorContext context; private final MethodSpecParser parser; private boolean parseNullOnError; public TemplateMethodParser(ProcessorContext context, T template) { this.template = template; this.context = context; this.parser = new MethodSpecParser(template); } public void setParseNullOnError(boolean parseNullOnError) { this.parseNullOnError = parseNullOnError; } public boolean isParseNullOnError() { return parseNullOnError; } public MethodSpecParser getParser() { return parser; } public ProcessorContext getContext() { return context; } public TypeSystemData getTypeSystem() { return template.getTypeSystem(); } public abstract MethodSpec createSpecification(ExecutableElement method, AnnotationMirror mirror); public abstract E create(TemplateMethod method, boolean invalid); public abstract boolean isParsable(ExecutableElement method); public Class<? extends Annotation> getAnnotationType() { return null; } public final List<E> parse(List<? extends Element> elements) { List<ExecutableElement> methods = new ArrayList<>(); methods.addAll(ElementFilter.methodsIn(elements)); List<E> parsedMethods = new ArrayList<>(); boolean valid = true; int naturalOrder = 0; for (ExecutableElement method : methods) { if (!isParsable(method)) { continue; } Class<? extends Annotation> annotationType = getAnnotationType(); AnnotationMirror mirror = null; if (annotationType != null) { mirror = ElementUtils.findAnnotationMirror(getContext().getEnvironment(), method, annotationType); } E parsedMethod = parse(naturalOrder, method, mirror); if (method.getModifiers().contains(Modifier.PRIVATE) && parser.isEmitErrors()) { parsedMethod.addError("Method annotated with @%s must not be private.", getAnnotationType().getSimpleName()); parsedMethods.add(parsedMethod); valid = false; continue; } if (parsedMethod != null) { parsedMethods.add(parsedMethod); } else { valid = false; } naturalOrder++; } Collections.sort(parsedMethods); if (!valid && isParseNullOnError()) { return null; } return parsedMethods; } private E parse(int naturalOrder, ExecutableElement method, AnnotationMirror annotation) { MethodSpec methodSpecification = createSpecification(method, annotation); if (methodSpecification == null) { return null; } TemplateMethod templateMethod = parser.parse(methodSpecification, method, annotation, naturalOrder); if (templateMethod != null) { return create(templateMethod, templateMethod.hasErrors()); } return null; } public final E create(String id, int naturalOrder, ExecutableElement methodMetadata, AnnotationMirror mirror, TypeMirror returnType, List<TypeMirror> parameterTypes) { TemplateMethod method = parser.parseImpl(createSpecification(methodMetadata, mirror), naturalOrder, id, methodMetadata, mirror, returnType, parameterTypes); if (method != null) { return create(method, method.hasErrors()); } return null; } }