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//package org.bridj.util;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
/**
* Default implementation of {@link java.lang.reflect.ParameterizedType}
*
* @author Olivier
*/
public class DefaultParameterizedType implements ParameterizedType {
private final Type[] actualTypeArguments;
private final Type ownerType;
private final Type rawType;
public DefaultParameterizedType(Type ownerType, Type rawType,
Type[] actualTypeArguments) {
this.ownerType = ownerType;
this.actualTypeArguments = actualTypeArguments;
this.rawType = rawType;
}
public DefaultParameterizedType(Type rawType, Type... actualTypeArguments) {
this(null, rawType, actualTypeArguments);
}
public static Type paramType(Type rawType, Type... actualTypeArguments) {
return new DefaultParameterizedType(rawType, actualTypeArguments);
}
@Override
public Type[] getActualTypeArguments() {
return actualTypeArguments.clone();
}
@Override
public java.lang.reflect.Type getOwnerType() {
return ownerType;
}
@Override
public java.lang.reflect.Type getRawType() {
return rawType;
}
@Override
public int hashCode() {
int h = getRawType().hashCode();
if (getOwnerType() != null)
h ^= getOwnerType().hashCode();
for (int i = 0, n = actualTypeArguments.length; i < n; i++)
h ^= actualTypeArguments[i].hashCode();
return h;
}
static boolean eq(Object a, Object b) {
if ((a == null) != (b == null))
return false;
if (a != null && !a.equals(b))
return false;
return true;
}
@Override
public boolean equals(Object o) {
if (o == null || !(o instanceof DefaultParameterizedType))
return false;
DefaultParameterizedType t = (DefaultParameterizedType) o;
if (!eq(getRawType(), t.getRawType()))
return false;
if (!eq(getOwnerType(), t.getOwnerType()))
return false;
Object[] tp = t.actualTypeArguments;
if (actualTypeArguments.length != tp.length)
return false;
for (int i = 0, n = actualTypeArguments.length; i < n; i++)
if (!eq(actualTypeArguments[i], tp[i]))
return false;
return true;
}
}