org.jetbrains.kotlin.codegen.SamCodegenUtil Maven / Gradle / Ivy
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* 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 org.jetbrains.kotlin.codegen;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor;
import org.jetbrains.kotlin.descriptors.FunctionDescriptor;
import org.jetbrains.kotlin.load.java.descriptors.SamAdapterDescriptor;
import org.jetbrains.kotlin.synthetic.SamAdapterExtensionFunctionDescriptor;
public class SamCodegenUtil {
@Nullable
public static FunctionDescriptor getOriginalIfSamAdapter(@NotNull FunctionDescriptor fun) {
FunctionDescriptor original = fun.getOriginal();
if (original instanceof SamAdapterDescriptor) {
return ((SamAdapterDescriptor) original).getOriginForSam();
}
if (original instanceof SamAdapterExtensionFunctionDescriptor) {
return ((SamAdapterExtensionFunctionDescriptor) original).getSourceFunction();
}
if (original.getKind() == CallableMemberDescriptor.Kind.FAKE_OVERRIDE) {
for (FunctionDescriptor overridden : original.getOverriddenDescriptors()) {
FunctionDescriptor originalIfSamAdapter = getOriginalIfSamAdapter(overridden);
if (originalIfSamAdapter != null) {
return originalIfSamAdapter;
}
}
}
return null;
}
public static T resolveSamAdapter(@NotNull T descriptor) {
FunctionDescriptor original = getOriginalIfSamAdapter(descriptor);
return original != null ? (T) original : descriptor;
}
private SamCodegenUtil() {
}
}