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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.
*
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package com.oracle.truffle.dsl.processor.parser;
import java.util.Arrays;
import java.util.Collection;
import javax.lang.model.element.AnnotationMirror;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.type.TypeMirror;
import com.oracle.truffle.dsl.processor.ProcessorContext;
import com.oracle.truffle.dsl.processor.java.ElementUtils;
import com.oracle.truffle.dsl.processor.model.MethodSpec;
import com.oracle.truffle.dsl.processor.model.NodeData;
import com.oracle.truffle.dsl.processor.model.NodeExecutionData;
import com.oracle.truffle.dsl.processor.model.NodeFieldData;
import com.oracle.truffle.dsl.processor.model.ParameterSpec;
import com.oracle.truffle.dsl.processor.model.TemplateMethod;
public abstract class NodeMethodParser<E extends TemplateMethod> extends TemplateMethodParser<NodeData, E> {
public NodeMethodParser(ProcessorContext context, NodeData node) {
super(context, node);
}
public NodeData getNode() {
return template;
}
protected ParameterSpec createValueParameterSpec(NodeExecutionData execution) {
ParameterSpec spec = new ParameterSpec(execution.getName(), getPossibleParameterTypes(execution));
spec.setExecution(execution);
return spec;
}
protected Collection<TypeMirror> getPossibleParameterTypes(NodeExecutionData execution) {
return getNode().getGenericTypes(execution);
}
protected ParameterSpec createReturnParameterSpec() {
ParameterSpec returnValue = new ParameterSpec("returnValue", getPossibleReturnTypes());
returnValue.setExecution(getNode().getThisExecution());
return returnValue;
}
protected Collection<TypeMirror> getPossibleReturnTypes() {
return Arrays.asList(getNode().getGenericType(getNode().getThisExecution()));
}
@Override
public boolean isParsable(ExecutableElement method) {
if (getAnnotationType() != null) {
return ElementUtils.findAnnotationMirror(getContext().getEnvironment(), method, getAnnotationType()) != null;
}
return true;
}
@SuppressWarnings("unused")
protected final MethodSpec createDefaultMethodSpec(ExecutableElement method, AnnotationMirror mirror, boolean shortCircuitsEnabled, String shortCircuitName) {
MethodSpec methodSpec = new MethodSpec(createReturnParameterSpec());
addDefaultFrame(methodSpec);
addDefaultFieldMethodSpec(methodSpec);
addDefaultChildren(shortCircuitsEnabled, shortCircuitName, methodSpec);
return methodSpec;
}
private void addDefaultChildren(boolean shortCircuitsEnabled, String breakName, MethodSpec spec) {
if (getNode().getChildren() == null) {
// children are null when parsing executable types
return;
}
for (NodeExecutionData execution : getNode().getChildExecutions()) {
if (breakName != null && execution.getIndexedName().equals(breakName)) {
break;
}
if (execution.isShortCircuit() && shortCircuitsEnabled) {
spec.addRequired(new ParameterSpec(shortCircuitValueName(execution.getName()), getContext().getType(boolean.class)));
}
spec.addRequired(createValueParameterSpec(execution));
}
}
protected void addDefaultFrame(MethodSpec methodSpec) {
if (getNode().supportsFrame()) {
methodSpec.addOptional(new ParameterSpec("frame", getNode().getFrameType()));
}
}
protected void addDefaultFieldMethodSpec(MethodSpec methodSpec) {
for (NodeFieldData field : getNode().getFields()) {
if (field.getGetter() == null) {
ParameterSpec spec = new ParameterSpec(field.getName(), field.getType());
spec.setLocal(true);
methodSpec.addOptional(spec);
}
}
}
private static String shortCircuitValueName(String valueName) {
return "has" + ElementUtils.firstLetterUpperCase(valueName);
}
}