feat: throw exception if bridge is not found correctly

This commit is contained in:
zaaarf 2023-04-12 00:53:36 +02:00
parent 524818a378
commit abd9954ed3
No known key found for this signature in database
GPG key ID: 82240E075E31FA4C
2 changed files with 26 additions and 1 deletions

View file

@ -330,6 +330,31 @@ public class ASTUtils {
);
}
/**
* Tries to find the "synthetic bridge" generated by the compiler for a certain overridden
* method. A "bridge" only exists in cases where type erasure is involved (i.e. when the
* method being overridden uses a generic parameter that is not preserved in the overriding
* method).
* @param context the {@link TypeElement} representing the parent class
* @param method an {@link ExecutableElement} stub representing the overloading method
* @param env the {@link ProcessingEnvironment} to perform the operation in
* @return the "bridge"
* @throws TargetNotFoundException if the method in question was not overriding anything, or
* if the method it was overriding does not require a bridge
* @since 0.5.2
*/
public static ExecutableElement findSyntheticBridge(
TypeElement context, ExecutableElement method, ProcessingEnvironment env) throws TargetNotFoundException {
ExecutableElement overridding = findOverloadedMethod(context, method, env);
if(descriptorFromExecutableElement(overridding, env).equals(descriptorFromExecutableElement(method, env)))
throw new TargetNotFoundException(
"bridge method for",
overridding.getSimpleName().toString(),
context.getQualifiedName().toString()
);
else return overridding;
}
/**
* Utility method for finding out what type of proxy a field is.
* It will fail if the return type is not a known type of proxy.

View file

@ -78,7 +78,7 @@ public class MethodContainer {
ExecutableElement tmp = (ExecutableElement) findMember(
parent, name, descriptor, descriptor != null && strict,false, env
);
this.elem = bridge ? findOverloadedMethod((TypeElement) this.parent.elem, tmp, env) : tmp;
this.elem = bridge ? findSyntheticBridge((TypeElement) this.parent.elem, tmp, env) : tmp;
this.name = this.elem.getSimpleName().toString();
this.descriptor = descriptorFromExecutableElement(this.elem, env);
}