Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/CreateCastParser.java @ 18754:59bf50cc5a32
Truffle-DSL: implemented @GenerateNodeFactory to enable generation of factories. Factory generation is now disabled by default.
author | Christian Humer <christian.humer@gmail.com> |
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date | Mon, 29 Dec 2014 23:38:25 +0100 |
parents | 0370880ac9ce |
children | 62c43fcf5be2 |
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/* * Copyright (c) 2012, 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 com.oracle.truffle.api.dsl.*; import com.oracle.truffle.dsl.processor.*; import com.oracle.truffle.dsl.processor.java.*; import com.oracle.truffle.dsl.processor.model.*; public class CreateCastParser extends NodeMethodParser<CreateCastData> { public CreateCastParser(ProcessorContext context, NodeData operation) { super(context, operation); } @Override public Class<? extends Annotation> getAnnotationType() { return CreateCast.class; } @Override public MethodSpec createSpecification(ExecutableElement method, AnnotationMirror mirror) { List<String> childNames = ElementUtils.getAnnotationValueList(String.class, mirror, "value"); NodeChildData foundChild = null; for (String childName : childNames) { foundChild = getNode().findChild(childName); if (foundChild != null) { break; } } TypeMirror baseType = getContext().getTruffleTypes().getNode(); if (foundChild != null) { baseType = foundChild.getOriginalType(); } MethodSpec spec = new MethodSpec(new InheritsParameterSpec("child", baseType)); addDefaultFieldMethodSpec(spec); ParameterSpec childSpec = new ParameterSpec("castedChild", baseType); childSpec.setSignature(true); spec.addRequired(childSpec); return spec; } @Override public CreateCastData create(TemplateMethod method, boolean invalid) { AnnotationMirror mirror = method.getMarkerAnnotation(); List<String> childNames = ElementUtils.getAnnotationValueList(String.class, mirror, "value"); CreateCastData cast = new CreateCastData(method, childNames); AnnotationValue value = ElementUtils.getAnnotationValue(mirror, "value"); TypeMirror type = null; if (childNames == null || childNames.isEmpty()) { cast.addError(value, "No value specified but required."); return cast; } for (String childName : childNames) { NodeChildData child = getNode().findChild(childName); if (child == null) { // error cast.addError(value, "Specified child '%s' not found.", childName); continue; } if (type == null) { type = child.getNodeType(); } else if (!ElementUtils.typeEquals(type, child.getNodeType())) { cast.addError(value, "All child nodes for a cast must have the same node type."); continue; } } return cast; } private static class InheritsParameterSpec extends ParameterSpec { public InheritsParameterSpec(String name, TypeMirror... allowedTypes) { super(name, Arrays.asList(allowedTypes), null); } @Override public boolean matches(TypeMirror actualType) { boolean found = false; for (TypeMirror specType : getAllowedTypes()) { if (ElementUtils.isAssignable(actualType, specType)) { found = true; break; } } return found; } } }