/*
* Copyright (c) 2016, 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.interop;
import java.io.IOException;
import java.io.Writer;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.Modifier;
import javax.lang.model.element.TypeElement;
import javax.lang.model.type.MirroredTypeException;
import javax.lang.model.type.TypeKind;
import javax.lang.model.type.TypeMirror;
import com.oracle.truffle.api.interop.Message;
import com.oracle.truffle.api.interop.MessageResolution;
import com.oracle.truffle.dsl.processor.java.ElementUtils;
final class Utils {
static String getReceiverTypeFullClassName(MessageResolution message) {
String receiverTypeFullClassName;
try {
message.receiverType().getName();
throw new AssertionError();
} catch (MirroredTypeException mte) {
// This exception is always thrown: use the mirrors to inspect the class
receiverTypeFullClassName = ElementUtils.getQualifiedName(mte.getTypeMirror());
}
return receiverTypeFullClassName;
}
static Object getMessage(ProcessingEnvironment processingEnv, String messageName) {
Object currentMessage = null;
try {
currentMessage = Message.valueOf(messageName);
} catch (IllegalArgumentException ex) {
TypeElement typeElement = processingEnv.getElementUtils().getTypeElement(messageName);
TypeElement messageElement = processingEnv.getElementUtils().getTypeElement(Message.class.getName());
if (typeElement != null && processingEnv.getTypeUtils().isAssignable(typeElement.asType(), messageElement.asType())) {
currentMessage = messageName;
}
}
return currentMessage;
}
static TypeMirror getTypeMirror(ProcessingEnvironment env, Class<?> clazz) {
String name = clazz.getName();
TypeElement elem = env.getElementUtils().getTypeElement(name);
return elem.asType();
}
static boolean isObjectArray(TypeMirror actualType) {
return actualType.getKind() == TypeKind.ARRAY && ElementUtils.getQualifiedName(actualType).equals("java.lang.Object");
}
static String getFullResolveClassName(TypeElement innerClass) {
return ElementUtils.getPackageName(innerClass) + "." + getSimpleResolveClassName(innerClass);
}
static String getSimpleResolveClassName(TypeElement innerClass) {
return ElementUtils.getSimpleName(innerClass) + "Sub";
}
static void appendFactoryGeneratedFor(Writer w, String ident, String generatedFor, String generatedBy) throws IOException {
w.append(ident).append("\n");
w.append(ident).append("/**\n");
w.append(ident).append(" * This foreign access factory is generated by {@link ").append(generatedBy).append("}.\n");
w.append(ident).append(" * You are supposed to use it for the receiver object {@link ").append(generatedFor).append("}.\n");
w.append(ident).append(" */\n");
}
static void appendMessagesGeneratedByInformation(Writer w, String ident, String generatedFor, String generatedBy) throws IOException {
w.append(ident).append("\n");
w.append(ident).append("/**\n");
w.append(ident).append(" * This message resolution is generated by {@link ").append(generatedBy).append("}\n");
w.append(ident).append(" * It is used by the foreign access factory {@link ").append(generatedFor).append("}\n");
w.append(ident).append(" */\n");
}
static void appendVisibilityModifier(Writer w, TypeElement element) throws IOException {
if (element.getModifiers().contains(Modifier.PUBLIC)) {
w.append("public ");
} else if (element.getModifiers().contains(Modifier.PROTECTED)) {
w.append("protected ");
} else if (element.getModifiers().contains(Modifier.PRIVATE)) {
// there is a check that the class is not private
throw new IllegalStateException();
}
}
}