net.bytebuddy.dynamic.scaffold.inline.InliningImplementationMatcher 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.scaffold.inline;
import net.bytebuddy.build.HashCodeAndEqualsPlugin;
import net.bytebuddy.description.method.MethodDescription;
import net.bytebuddy.description.type.TypeDescription;
import net.bytebuddy.matcher.ElementMatcher;
import net.bytebuddy.matcher.ElementMatchers;
import net.bytebuddy.matcher.LatentMatcher;
import static net.bytebuddy.matcher.ElementMatchers.*;
/**
* A latent method matcher that identifies methods to instrument when redefining or rebasing a type.
*/
@HashCodeAndEqualsPlugin.Enhance
public class InliningImplementationMatcher implements LatentMatcher {
/**
* A method matcher that matches any ignored method.
*/
private final LatentMatcher ignoredMethods;
/**
* A method matcher that matches any predefined method.
*/
private final ElementMatcher predefinedMethodSignatures;
/**
* Creates a new inline implementation matcher.
*
* @param ignoredMethods A method matcher that matches any ignored method.
* @param predefinedMethodSignatures A method matcher that matches any predefined method.
*/
protected InliningImplementationMatcher(LatentMatcher ignoredMethods,
ElementMatcher predefinedMethodSignatures) {
this.ignoredMethods = ignoredMethods;
this.predefinedMethodSignatures = predefinedMethodSignatures;
}
/**
* Creates a matcher where only overridable or declared methods are matched unless those are ignored. Methods that
* are declared by the target type are only matched if they are not ignored. Declared methods that are not found on the
* target type are always matched.
*
* @param ignoredMethods A method matcher that matches any ignored method.
* @param originalType The original type of the instrumentation before adding any user methods.
* @return A latent method matcher that identifies any method to instrument for a rebasement or redefinition.
*/
protected static LatentMatcher of(LatentMatcher ignoredMethods, TypeDescription originalType) {
ElementMatcher.Junction predefinedMethodSignatures = none();
for (MethodDescription methodDescription : originalType.getDeclaredMethods()) {
ElementMatcher.Junction signature = methodDescription.isConstructor()
? isConstructor()
: ElementMatchers.named(methodDescription.getName());
signature = signature.and(returns(methodDescription.getReturnType().asErasure()));
signature = signature.and(takesArguments(methodDescription.getParameters().asTypeList().asErasures()));
predefinedMethodSignatures = predefinedMethodSignatures.or(signature);
}
return new InliningImplementationMatcher(ignoredMethods, predefinedMethodSignatures);
}
/**
* {@inheritDoc}
*/
public ElementMatcher resolve(TypeDescription typeDescription) {
return (ElementMatcher) not(ignoredMethods.resolve(typeDescription))
.and(isVirtual().and(not(isFinal())).or(isDeclaredBy(typeDescription)))
.or(isDeclaredBy(typeDescription).and(not(predefinedMethodSignatures)));
}
}