| /* |
| * Copyright 2022 The Android Open Source Project |
| * |
| * 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 androidx.room.solver.shortcut.binderprovider |
| |
| import androidx.room.compiler.processing.XRawType |
| import androidx.room.compiler.processing.XType |
| import androidx.room.processor.Context |
| import androidx.room.solver.RxType |
| import androidx.room.solver.shortcut.binder.CallableUpsertMethodBinder |
| import androidx.room.solver.shortcut.binder.InsertOrUpsertMethodBinder |
| import androidx.room.vo.ShortcutQueryParameter |
| |
| /** |
| * Provider for Rx Callable binders. |
| */ |
| open class RxCallableUpsertMethodBinderProvider internal constructor( |
| val context: Context, |
| private val rxType: RxType |
| ) : InsertOrUpsertMethodBinderProvider { |
| |
| /** |
| * [Single] and [Maybe] are generics but [Completable] is not so each implementation of this |
| * class needs to define how to extract the type argument. |
| */ |
| open fun extractTypeArg(declared: XType): XType = declared.typeArguments.first() |
| |
| override fun matches(declared: XType): Boolean = |
| declared.typeArguments.size == 1 && matchesRxType(declared) |
| |
| private fun matchesRxType(declared: XType): Boolean { |
| return declared.rawType.asTypeName() == rxType.className |
| } |
| |
| override fun provide( |
| declared: XType, |
| params: List<ShortcutQueryParameter> |
| ): InsertOrUpsertMethodBinder { |
| val typeArg = extractTypeArg(declared) |
| val adapter = context.typeAdapterStore.findUpsertAdapter(typeArg, params) |
| return CallableUpsertMethodBinder.createUpsertBinder(typeArg, adapter) { callableImpl, _ -> |
| addStatement("return %T.fromCallable(%L)", rxType.className, callableImpl) |
| } |
| } |
| |
| companion object { |
| fun getAll(context: Context) = listOf( |
| RxSingleMaybeUpsertMethodBinderProvider(context, RxType.RX2_SINGLE), |
| RxSingleMaybeUpsertMethodBinderProvider(context, RxType.RX2_MAYBE), |
| RxCompletableUpsertMethodBinderProvider(context, RxType.RX2_COMPLETABLE), |
| RxSingleMaybeUpsertMethodBinderProvider(context, RxType.RX3_SINGLE), |
| RxSingleMaybeUpsertMethodBinderProvider(context, RxType.RX3_MAYBE), |
| RxCompletableUpsertMethodBinderProvider(context, RxType.RX3_COMPLETABLE) |
| ) |
| } |
| } |
| |
| private class RxCompletableUpsertMethodBinderProvider( |
| context: Context, |
| rxType: RxType |
| ) : RxCallableUpsertMethodBinderProvider(context, rxType) { |
| |
| private val completableType: XRawType? by lazy { |
| context.processingEnv.findType(rxType.className.canonicalName)?.rawType |
| } |
| |
| /** |
| * Since Completable is not a generic, the supported return type should be Void (nullable). |
| * Like this, the generated Callable.call method will return Void. |
| */ |
| override fun extractTypeArg(declared: XType): XType = |
| context.COMMON_TYPES.VOID.makeNullable() |
| |
| override fun matches(declared: XType): Boolean = isCompletable(declared) |
| |
| private fun isCompletable(declared: XType): Boolean { |
| if (completableType == null) { |
| return false |
| } |
| return declared.rawType.isAssignableFrom(completableType!!) |
| } |
| } |
| |
| private class RxSingleMaybeUpsertMethodBinderProvider( |
| context: Context, |
| rxType: RxType |
| ) : RxCallableUpsertMethodBinderProvider(context, rxType) { |
| |
| /** |
| * Since Maybe can have null values, the Callable returned must allow for null values. |
| */ |
| override fun extractTypeArg(declared: XType): XType = |
| declared.typeArguments.first().makeNullable() |
| } |