135 lines
3.9 KiB
Java
135 lines
3.9 KiB
Java
/*
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* Copyright (c) 2002-2008 LWJGL Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.lwjgl.util.generator;
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import org.lwjgl.PointerBuffer;
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import java.nio.Buffer;
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import javax.lang.model.type.ArrayType;
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import javax.lang.model.type.DeclaredType;
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import javax.lang.model.type.NoType;
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import javax.lang.model.type.PrimitiveType;
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import javax.lang.model.util.SimpleTypeVisitor6;
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/**
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* A TypeVisitor that translates TypeMirrors to JNI
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* type strings.
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*
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* @author elias_naur <elias_naur@users.sourceforge.net>
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* @version $Revision$
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* $Id$
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*/
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public final class JNITypeTranslator extends SimpleTypeVisitor6<Void, Void> {
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private final StringBuilder signature = new StringBuilder();
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private boolean objectReturn;
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public String getSignature() {
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return signature.toString();
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}
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public String getReturnSignature() {
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return objectReturn ? "jobject" : signature.toString();
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}
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@Override
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public Void visitArray(ArrayType t, Void o) {
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final String className = t.getComponentType().toString();
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if ( "java.lang.CharSequence".equals(className) )
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signature.append("jlong");
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else if ( "java.nio.ByteBuffer".equals(className) )
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signature.append("jobjectArray");
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else if ( "org.lwjgl.opencl.CLMem".equals(className) )
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signature.append("jobjectArray");
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else
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throw new RuntimeException(t + " is not allowed");
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return DEFAULT_VALUE;
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}
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private void visitClassType(DeclaredType t) {
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final Class<?> type = Utils.getJavaType(t);
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if ( Buffer.class.isAssignableFrom(type) || PointerBuffer.class.isAssignableFrom(type) ) {
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signature.append("jlong");
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objectReturn = true;
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} else
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signature.append("jobject");
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}
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@Override
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public Void visitDeclared(DeclaredType t, Void o) {
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if ( t.asElement().getKind().isClass() )
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visitClassType(t);
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return DEFAULT_VALUE;
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}
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@Override
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public Void visitPrimitive(PrimitiveType t, Void o) {
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String type;
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switch ( t.getKind() ) {
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case LONG:
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type = "jlong";
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break;
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case INT:
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type = "jint";
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break;
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case FLOAT:
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type = "jfloat";
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break;
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case SHORT:
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type = "jshort";
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break;
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case BYTE:
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type = "jbyte";
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break;
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case DOUBLE:
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type = "jdouble";
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break;
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case BOOLEAN:
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type = "jboolean";
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break;
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default:
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throw new RuntimeException(t + " is not allowed");
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}
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signature.append(type);
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return DEFAULT_VALUE;
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}
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@Override
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public Void visitNoType(NoType t, Void o) {
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signature.append(t.toString());
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return DEFAULT_VALUE;
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}
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}
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