/*
* Copyright (C) 2011 Wayne Meissner
*
* This file is part of the JNR project.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jnr.ffi.provider.jffi;
import jnr.ffi.NativeType;
import jnr.ffi.mapper.FromNativeConverter;
import jnr.ffi.mapper.ToNativeConverter;
import jnr.ffi.mapper.TypeMapper;
import jnr.ffi.util.EnumMapper;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import static jnr.ffi.provider.jffi.InvokerUtil.jffiType;
/**
*
*/
final class ClosureUtil {
private ClosureUtil() {
}
static ToNativeType getResultType(NativeRuntime runtime, Method m, TypeMapper typeMapper) {
Annotation[] annotations = m.getAnnotations();
ToNativeConverter converter = getToNativeConverter(m.getReturnType(), annotations, typeMapper);
Class javaClass = converter != null ? converter.nativeType() : m.getReturnType();
NativeType nativeType = InvokerUtil.getNativeType(runtime, javaClass, annotations);
return new ToNativeType(m.getReturnType(), nativeType, annotations, converter);
}
static FromNativeType getParameterType(NativeRuntime runtime, Method m, int idx, TypeMapper typeMapper) {
Annotation[] annotations = m.getParameterAnnotations()[idx];
Class declaredJavaClass = m.getParameterTypes()[idx];
FromNativeConverter converter = getFromNativeConverter(declaredJavaClass, annotations, typeMapper);
Class javaClass = converter != null ? converter.nativeType() : declaredJavaClass;
NativeType nativeType = InvokerUtil.getNativeType(runtime, javaClass, annotations);
return new FromNativeType(declaredJavaClass, nativeType, annotations, converter);
}
static com.kenai.jffi.Type getNativeResultType(NativeRuntime runtime, Method m, TypeMapper typeMapper) {
ToNativeConverter converter = getToNativeConverter(m.getReturnType(), m.getAnnotations(), typeMapper);
Class javaClass = converter != null ? converter.nativeType() : m.getReturnType();
return jffiType(InvokerUtil.getNativeType(runtime, m.getReturnType(), m.getAnnotations()));
}
static com.kenai.jffi.Type getNativeParameterType(NativeRuntime runtime, Method m, int idx, TypeMapper typeMapper) {
FromNativeConverter converter = getFromNativeConverter(m.getParameterTypes()[idx], m.getParameterAnnotations()[idx], typeMapper);
Class javaClass = converter != null ? converter.nativeType() : m.getReturnType();
return jffiType(InvokerUtil.getNativeType(runtime, m.getParameterTypes()[idx], m.getParameterAnnotations()[idx]));
}
@SuppressWarnings("unchecked")
static FromNativeConverter getFromNativeConverter(Class javaClass, Annotation[] annotations, TypeMapper typeMapper) {
FromNativeConverter conv = typeMapper.getFromNativeConverter(javaClass);
if (conv != null) {
return conv;
} else if (Enum.class.isAssignableFrom(javaClass)) {
return EnumMapper.getInstance(javaClass.asSubclass(Enum.class));
} else {
return null;
}
}
@SuppressWarnings("unchecked")
static ToNativeConverter getToNativeConverter(Class javaClass, Annotation[] annotations, TypeMapper typeMapper) {
ToNativeConverter conv = typeMapper.getToNativeConverter(javaClass);
if (conv != null) {
return conv;
} else if (Enum.class.isAssignableFrom(javaClass)) {
return EnumMapper.getInstance(javaClass.asSubclass(Enum.class));
} else {
return null;
}
}
}