net.bytebuddy.dynamic.TargetType Maven / Gradle / Ivy
/*
* Copyright 2014 - Present Rafael Winterhalter
*
* 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 net.bytebuddy.dynamic;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import net.bytebuddy.description.type.TypeDescription;
/**
* This type is used as a place holder for creating methods or fields that refer to the type that currently subject
* of creation within a {@link net.bytebuddy.dynamic.DynamicType.Builder}.
*/
public final class TargetType {
/**
* A description of the {@link net.bytebuddy.dynamic.TargetType}.
*/
public static final TypeDescription DESCRIPTION = TypeDescription.ForLoadedType.of(TargetType.class);
/**
* Resolves the given type description to the supplied target type if it represents the {@link TargetType} placeholder.
* Array types are resolved to their component type and rebuilt as an array of the actual target type, if necessary.
*
* @param typeDescription The type description that might represent the {@link TargetType} placeholder.
* @param targetType The actual target type.
* @return A description of the resolved type.
*/
@SuppressFBWarnings(value = "NP_NULL_ON_SOME_PATH_FROM_RETURN_VALUE", justification = "Assuming component type for array type.")
public static TypeDescription resolve(TypeDescription typeDescription, TypeDescription targetType) {
int arity = 0;
TypeDescription componentType = typeDescription;
while (componentType.isArray()) {
componentType = componentType.getComponentType();
arity++;
}
return componentType.represents(TargetType.class)
? TypeDescription.ArrayProjection.of(targetType, arity)
: typeDescription;
}
/**
* An unusable constructor to avoid instance creation.
*/
private TargetType() {
throw new UnsupportedOperationException("This class only serves as a marker type and should not be instantiated");
}
}