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feat: throw exception if bridge is not found correctly
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524818a378
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2 changed files with 26 additions and 1 deletions
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@ -330,6 +330,31 @@ public class ASTUtils {
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);
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}
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/**
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* Tries to find the "synthetic bridge" generated by the compiler for a certain overridden
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* method. A "bridge" only exists in cases where type erasure is involved (i.e. when the
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* method being overridden uses a generic parameter that is not preserved in the overriding
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* method).
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* @param context the {@link TypeElement} representing the parent class
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* @param method an {@link ExecutableElement} stub representing the overloading method
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* @param env the {@link ProcessingEnvironment} to perform the operation in
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* @return the "bridge"
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* @throws TargetNotFoundException if the method in question was not overriding anything, or
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* if the method it was overriding does not require a bridge
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* @since 0.5.2
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*/
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public static ExecutableElement findSyntheticBridge(
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TypeElement context, ExecutableElement method, ProcessingEnvironment env) throws TargetNotFoundException {
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ExecutableElement overridding = findOverloadedMethod(context, method, env);
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if(descriptorFromExecutableElement(overridding, env).equals(descriptorFromExecutableElement(method, env)))
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throw new TargetNotFoundException(
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"bridge method for",
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overridding.getSimpleName().toString(),
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context.getQualifiedName().toString()
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);
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else return overridding;
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}
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/**
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* Utility method for finding out what type of proxy a field is.
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* It will fail if the return type is not a known type of proxy.
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@ -78,7 +78,7 @@ public class MethodContainer {
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ExecutableElement tmp = (ExecutableElement) findMember(
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parent, name, descriptor, descriptor != null && strict,false, env
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);
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this.elem = bridge ? findOverloadedMethod((TypeElement) this.parent.elem, tmp, env) : tmp;
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this.elem = bridge ? findSyntheticBridge((TypeElement) this.parent.elem, tmp, env) : tmp;
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this.name = this.elem.getSimpleName().toString();
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this.descriptor = descriptorFromExecutableElement(this.elem, env);
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}
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