Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/node/CreateCastParser.java @ 16755:bd28da642eea
Truffle-DSL: Several new features implemented:
Implementation of a new code generation layout which shares code between generated nodes.
Declaration order of specializations is now used as specialization order.
Specializations do no longer perform fallthrough on respecialization, they now always respecialize from the first specialization.
Implemented support for contains relations between specializations.
Improved reachability error messages.
Preliminary support for @Implies.
author | Christian Humer <christian.humer@gmail.com> |
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date | Mon, 11 Aug 2014 15:53:05 +0200 |
parents | b466199f19e1 |
children |
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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.node; 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.template.*; 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 = Utils.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 = Utils.getAnnotationValueList(String.class, mirror, "value"); CreateCastData cast = new CreateCastData(method, childNames); AnnotationValue value = Utils.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 (!Utils.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)); } @Override public boolean matches(TypeMirror actualType) { boolean found = false; for (TypeMirror specType : getAllowedTypes()) { if (Utils.isAssignable(actualType, specType)) { found = true; break; } } return found; } } }