245 lines
8.5 KiB
Java
245 lines
8.5 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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/**
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*
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* This class represent a parameter configuration. There are multiple TypeInfos
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* in case of multityped parameters.
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*
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* @author elias_naur <elias_naur@users.sourceforge.net>
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* @version $Revision$ $Id$
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*/
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import org.lwjgl.PointerBuffer;
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import org.lwjgl.util.generator.opengl.GLvoid;
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import java.lang.annotation.Annotation;
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import java.nio.*;
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import java.util.*;
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import javax.lang.model.element.AnnotationMirror;
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import javax.lang.model.element.ExecutableElement;
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import javax.lang.model.element.VariableElement;
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import javax.lang.model.type.TypeKind;
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import javax.lang.model.type.TypeMirror;
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public final class TypeInfo {
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public static final String UNSIGNED_PARAMETER_NAME = "unsigned";
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private final Signedness signedness;
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private final Class type;
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private final String auto_type;
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private TypeInfo(Class type, Signedness signedness, String auto_type) {
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this.type = type;
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this.signedness = signedness;
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this.auto_type = auto_type;
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}
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public Class getType() {
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return type;
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}
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public Signedness getSignedness() {
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return signedness;
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}
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public String getAutoType() {
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if ( auto_type == null ) {
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throw new RuntimeException("No auto type assigned");
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}
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return auto_type;
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}
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private static Class getTypeFromPrimitiveKind(TypeKind kind) {
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Class type;
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switch ( kind ) {
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case LONG:
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type = long.class;
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break;
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case INT:
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type = int.class;
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break;
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case FLOAT:
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type = float.class;
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break;
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case DOUBLE:
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type = double.class;
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break;
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case SHORT:
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type = short.class;
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break;
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case BYTE:
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type = byte.class;
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break;
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case BOOLEAN:
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type = boolean.class;
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break;
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default:
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throw new RuntimeException(kind + " is not allowed");
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}
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return type;
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}
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private static Class getBufferTypeFromPrimitiveKind(TypeKind kind, AnnotationMirror annotation) {
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Class type;
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switch ( kind ) {
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case INT:
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type = IntBuffer.class;
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break;
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case FLOAT:
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type = FloatBuffer.class;
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break;
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case DOUBLE:
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type = DoubleBuffer.class;
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break;
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case SHORT:
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type = ShortBuffer.class;
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break;
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case LONG:
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if ( annotation.getAnnotationType().asElement().getAnnotation(PointerType.class) != null ) {
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type = PointerBuffer.class;
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} else {
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type = LongBuffer.class;
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}
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break;
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case BYTE: /* fall through */
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case BOOLEAN:
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type = ByteBuffer.class;
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break;
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default:
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throw new RuntimeException(kind + " is not allowed");
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}
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return type;
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}
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private static TypeInfo getDefaultTypeInfo(TypeMirror t) {
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Class java_type = Utils.getJavaType(t);
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return new TypeInfo(java_type, Signedness.NONE, null);
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}
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public static Map<VariableElement, TypeInfo> getDefaultTypeInfoMap(ExecutableElement method) {
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Map<VariableElement, TypeInfo> map = new HashMap<VariableElement, TypeInfo>();
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for ( VariableElement param : method.getParameters() ) {
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TypeInfo type_info = getDefaultTypeInfo(param.asType());
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map.put(param, type_info);
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}
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return map;
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}
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private static Collection<TypeInfo> getTypeInfos(TypeMap type_map, VariableElement param) {
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List<? extends AnnotationMirror> annotations = Utils.getSortedAnnotations(param.getAnnotationMirrors());
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GLvoid void_annotation = param.getAnnotation(GLvoid.class);
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Map<Class, TypeInfo> types = new HashMap<Class, TypeInfo>();
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Collection<TypeInfo> multityped_result = new ArrayList<TypeInfo>();
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boolean add_default_type = true;
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for ( AnnotationMirror annotation : annotations ) {
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NativeType native_type_annotation = NativeTypeTranslator.getAnnotation(annotation, NativeType.class);
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if ( native_type_annotation != null ) {
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Class<? extends Annotation> annotation_type = NativeTypeTranslator.getClassFromType(annotation.getAnnotationType());
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Signedness signedness = type_map.getSignednessFromType(annotation_type);
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Class inverse_type = type_map.getInverseType(annotation_type);
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String auto_type = type_map.getAutoTypeFromAnnotation(annotation);
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if ( inverse_type != null ) {
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if ( types.containsKey(inverse_type) ) {
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TypeInfo inverse_type_info = types.get(inverse_type);
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String inverse_auto_type = inverse_type_info.getAutoType();
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auto_type = signedness == Signedness.UNSIGNED ? auto_type + " : " + inverse_auto_type : inverse_auto_type + " : " + auto_type;
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auto_type = UNSIGNED_PARAMETER_NAME + " ? " + auto_type;
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signedness = Signedness.BOTH;
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types.remove(inverse_type);
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multityped_result.remove(inverse_type_info);
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}
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}
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Class type;
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TypeKind kind;
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kind = void_annotation == null ? type_map.getPrimitiveTypeFromNativeType(annotation_type) : void_annotation.value();
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if ( Utils.getNIOBufferType(param.asType()) != null ) {
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type = getBufferTypeFromPrimitiveKind(kind, annotation);
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} else {
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type = getTypeFromPrimitiveKind(kind);
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}
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TypeInfo type_info = new TypeInfo(type, signedness, auto_type);
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types.put(annotation_type, type_info);
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multityped_result.add(type_info);
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add_default_type = false;
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}
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}
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if ( add_default_type ) {
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TypeInfo default_type_info = getDefaultTypeInfo(param.asType());
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Collection<TypeInfo> result = new ArrayList<TypeInfo>();
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result.add(default_type_info);
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return result;
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} else {
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return multityped_result;
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}
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}
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private static Map<VariableElement, Collection<TypeInfo>> getTypeInfoMap(TypeMap type_map, ExecutableElement method) {
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Map<VariableElement, Collection<TypeInfo>> map = new HashMap<VariableElement, Collection<TypeInfo>>();
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for ( VariableElement param : method.getParameters() ) {
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Collection<TypeInfo> types = getTypeInfos(type_map, param);
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map.put(param, types);
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}
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return map;
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}
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public static Collection<Map<VariableElement, TypeInfo>> getTypeInfoCrossProduct(TypeMap type_map, ExecutableElement method) {
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List<? extends VariableElement> parameter_collection = method.getParameters();
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Collection<Map<VariableElement, TypeInfo>> cross_product = new ArrayList<Map<VariableElement, TypeInfo>>();
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getCrossProductRecursive(0, parameter_collection, getTypeInfoMap(type_map, method),
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new HashMap<VariableElement, TypeInfo>(), cross_product);
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return cross_product;
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}
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private static void getCrossProductRecursive(int index, List<? extends VariableElement> parameters, Map<VariableElement, Collection<TypeInfo>> typeinfos_map, Map<VariableElement, TypeInfo> current_instance, Collection<Map<VariableElement, TypeInfo>> cross_product) {
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if ( index == parameters.size() ) {
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/**
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* the last parameter is treated as multi-type only
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*/
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cross_product.add(current_instance);
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return;
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}
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VariableElement param = parameters.get(index);
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Collection<TypeInfo> typeinfos = typeinfos_map.get(param);
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if ( typeinfos != null ) {
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for ( TypeInfo typeinfo : typeinfos ) {
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Map<VariableElement, TypeInfo> instance = new HashMap<VariableElement, TypeInfo>(current_instance);
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instance.put(param, typeinfo);
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getCrossProductRecursive(index + 1, parameters, typeinfos_map, instance, cross_product);
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}
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}
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}
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}
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