/*
* 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.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.TypeElement;
import javax.lang.model.type.ArrayType;
import javax.lang.model.type.DeclaredType;
import javax.lang.model.type.TypeMirror;
import javax.lang.model.type.WildcardType;
import javax.lang.model.util.Types;
import com.oracle.truffle.api.frame.Frame;
import com.oracle.truffle.api.frame.MaterializedFrame;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.dsl.processor.java.ElementUtils;
import com.oracle.truffle.dsl.processor.java.model.CodeTypeMirror;
import com.oracle.truffle.dsl.processor.model.Template;
/**
* THIS IS NOT PUBLIC API.
*/
public class ProcessorContext {
private final ProcessingEnvironment environment;
private final Map<String, Template> models = new HashMap<>();
private final ProcessCallback callback;
private final Log log;
private final TruffleTypes truffleTypes;
ProcessorContext(ProcessingEnvironment env, ProcessCallback callback) {
this.environment = env;
this.callback = callback;
this.log = new Log(environment);
this.truffleTypes = new TruffleTypes(this);
}
public TruffleTypes getTruffleTypes() {
return truffleTypes;
}
public Log getLog() {
return log;
}
public ProcessingEnvironment getEnvironment() {
return environment;
}
public boolean containsTemplate(TypeElement element) {
return models.containsKey(ElementUtils.getQualifiedName(element));
}
public void registerTemplate(TypeElement element, Template model) {
models.put(ElementUtils.getQualifiedName(element), model);
}
public Template getTemplate(TypeMirror templateTypeMirror, boolean invokeCallback) {
String qualifiedName = ElementUtils.getQualifiedName(templateTypeMirror);
Template model = models.get(qualifiedName);
if (model == null && invokeCallback) {
callback.callback(ElementUtils.fromTypeMirror(templateTypeMirror));
model = models.get(qualifiedName);
}
return model;
}
public DeclaredType getDeclaredType(Class<?> element) {
return (DeclaredType) ElementUtils.getType(environment, element);
}
public boolean isType(TypeMirror type, Class<?> clazz) {
return ElementUtils.typeEquals(type, getType(clazz));
}
public TypeMirror getType(Class<?> element) {
return ElementUtils.getType(environment, element);
}
public interface ProcessCallback {
void callback(TypeElement template);
}
public TypeMirror reloadTypeElement(TypeElement type) {
return getType(type.getQualifiedName().toString());
}
private TypeMirror getType(String className) {
TypeElement element = environment.getElementUtils().getTypeElement(className);
if (element != null) {
return element.asType();
}
return null;
}
public TypeMirror reloadType(TypeMirror type) {
if (type instanceof CodeTypeMirror) {
return type;
} else if (type.getKind().isPrimitive()) {
return type;
}
Types types = getEnvironment().getTypeUtils();
switch (type.getKind()) {
case ARRAY:
return types.getArrayType(reloadType(((ArrayType) type).getComponentType()));
case WILDCARD:
return types.getWildcardType(((WildcardType) type).getExtendsBound(), ((WildcardType) type).getSuperBound());
case DECLARED:
return reloadTypeElement((TypeElement) (((DeclaredType) type).asElement()));
}
return type;
}
private static final ThreadLocal<ProcessorContext> instance = new ThreadLocal<>();
public static void setThreadLocalInstance(ProcessorContext context) {
instance.set(context);
}
public static ProcessorContext getInstance() {
return instance.get();
}
public List<TypeMirror> getFrameTypes() {
return Arrays.asList(getType(VirtualFrame.class), getType(MaterializedFrame.class), getType(Frame.class));
}
}