org.jetbrains.kotlin.load.java.sam.SamConversionResolverImpl.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2017 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.load.java.sam
import org.jetbrains.kotlin.load.java.components.SamConversionResolver
import org.jetbrains.kotlin.load.java.descriptors.JavaClassDescriptor
import org.jetbrains.kotlin.storage.StorageManager
import org.jetbrains.kotlin.types.SimpleType
class SamConversionResolverImpl(val storageManager: StorageManager, val samWithReceiverResolver: SamWithReceiverResolver): SamConversionResolver {
private val functionTypesForSamInterfaces = storageManager.createCacheWithNullableValues()
override fun resolveFunctionTypeIfSamInterface(classDescriptor: JavaClassDescriptor): SimpleType? {
return functionTypesForSamInterfaces.computeIfAbsent(classDescriptor) {
val abstractMethod = SingleAbstractMethodUtils.getSingleAbstractMethodOrNull(classDescriptor) ?: return@computeIfAbsent null
val shouldConvertFirstParameterToDescriptor = samWithReceiverResolver.shouldConvertFirstSamParameterToReceiver(abstractMethod)
SingleAbstractMethodUtils.getFunctionTypeForAbstractMethod(abstractMethod, shouldConvertFirstParameterToDescriptor)
}
}
}