Refactoring: move SamConversionResolverImpl to core module

2019-11-18 17:01:53 +03:00
parent cd5c1b96bb
commit 0fdebdfeba
13 changed files with 15 additions and 13 deletions
@@ -1,88 +0,0 @@
-/*
- * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package org.jetbrains.kotlin.load.kotlin.sam
-
-import org.jetbrains.kotlin.builtins.createFunctionType
-import org.jetbrains.kotlin.descriptors.*
-import org.jetbrains.kotlin.descriptors.annotations.Annotations.Companion.EMPTY
-import org.jetbrains.kotlin.name.Name
-import org.jetbrains.kotlin.name.SpecialNames
-import org.jetbrains.kotlin.resolve.DescriptorUtils
-import org.jetbrains.kotlin.resolve.sam.SamConversionResolver
-import org.jetbrains.kotlin.resolve.descriptorUtil.builtIns
-import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameSafe
-import org.jetbrains.kotlin.storage.StorageManager
-import org.jetbrains.kotlin.types.KotlinType
-import org.jetbrains.kotlin.types.SimpleType
-import java.util.*
-
-class SamConversionResolverImpl(
-        storageManager: StorageManager,
-        private val samWithReceiverResolvers: Iterable<SamWithReceiverResolver>
-): SamConversionResolver {
-    private val functionTypesForSamInterfaces = storageManager.createCacheWithNullableValues<ClassDescriptor, SimpleType>()
-
-    override fun resolveFunctionTypeIfSamInterface(classDescriptor: ClassDescriptor): SimpleType? {
-        return functionTypesForSamInterfaces.computeIfAbsent(classDescriptor) {
-            val abstractMethod = getSingleAbstractMethodOrNull(classDescriptor) ?: return@computeIfAbsent null
-            val shouldConvertFirstParameterToDescriptor = samWithReceiverResolvers.any { it.shouldConvertFirstSamParameterToReceiver(abstractMethod) }
-            getFunctionTypeForAbstractMethod(abstractMethod, shouldConvertFirstParameterToDescriptor)
-        }
-    }
-}
-
-fun getSingleAbstractMethodOrNull(klass: ClassDescriptor): FunctionDescriptor? {
-    // NB: this check MUST BE at start. Please do not touch until following to-do is resolved
-    // Otherwise android data binding can cause resolve re-entrance
-    // For details see KT-18687, KT-16149
-    // TODO: prevent resolve re-entrance on architecture level, or (alternatively) ask data binding owners not to do it
-    if (klass.fqNameSafe.asString().endsWith(".databinding.DataBindingComponent")) return null
-
-    if (klass.isDefinitelyNotSamInterface) return null
-
-    val abstractMember = getAbstractMembers(klass).singleOrNull() ?: return null
-
-    return if (abstractMember is SimpleFunctionDescriptor && abstractMember.typeParameters.isEmpty())
-        abstractMember
-    else
-        null
-}
-
-@Suppress("UNCHECKED_CAST")
-fun getAbstractMembers(classDescriptor: ClassDescriptor): List<CallableMemberDescriptor> {
-    return DescriptorUtils
-        .getAllDescriptors(classDescriptor.unsubstitutedMemberScope)
-        .filter { it is CallableMemberDescriptor && it.modality == Modality.ABSTRACT } as List<CallableMemberDescriptor>
-}
-
-fun getFunctionTypeForAbstractMethod(
-    function: FunctionDescriptor,
-    shouldConvertFirstParameterToDescriptor: Boolean
-): SimpleType {
-    val returnType = function.returnType ?: error("function is not initialized: $function")
-    val valueParameters = function.valueParameters
-
-    val parameterTypes = ArrayList<KotlinType>(valueParameters.size)
-    val parameterNames = ArrayList<Name>(valueParameters.size)
-
-    var startIndex = 0
-    var receiverType: KotlinType? = null
-    if (shouldConvertFirstParameterToDescriptor && function.valueParameters.isNotEmpty()) {
-        receiverType = valueParameters[0].type
-        startIndex = 1
-    }
-
-    for (i in startIndex until valueParameters.size) {
-        val parameter = valueParameters[i]
-        parameterTypes.add(parameter.type)
-        parameterNames.add(if (function.hasSynthesizedParameterNames()) SpecialNames.NO_NAME_PROVIDED else parameter.name)
-    }
-
-    return createFunctionType(
-        function.builtIns, EMPTY, receiverType, parameterTypes,
-        parameterNames, returnType, function.isSuspend
-    )
-}
@@ -1,12 +0,0 @@
-/*
- * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package org.jetbrains.kotlin.load.kotlin.sam
-
-import org.jetbrains.kotlin.descriptors.FunctionDescriptor
-
-interface SamWithReceiverResolver {
-    fun shouldConvertFirstSamParameterToReceiver(function: FunctionDescriptor): Boolean
-}