CoroutineUpsertMethodBinder.kt

/*
 * 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.binder

import androidx.room.compiler.codegen.XCodeBlock
import androidx.room.compiler.codegen.XMemberName.Companion.packageMember
import androidx.room.compiler.codegen.XPropertySpec
import androidx.room.compiler.codegen.box
import androidx.room.compiler.processing.XType
import androidx.room.ext.InvokeWithLambdaParameter
import androidx.room.ext.LambdaSpec
import androidx.room.ext.RoomTypeNames
import androidx.room.ext.SQLiteDriverTypeNames
import androidx.room.solver.CodeGenScope
import androidx.room.solver.shortcut.result.InsertOrUpsertMethodAdapter
import androidx.room.vo.ShortcutQueryParameter

/**
 * Binder for suspending upsert methods.
 */
class CoroutineUpsertMethodBinder(
    val typeArg: XType,
    adapter: InsertOrUpsertMethodAdapter?,
    private val continuationParamName: String
) : InsertOrUpsertMethodBinder(adapter) {

    override fun convertAndReturn(
        parameters: List<ShortcutQueryParameter>,
        adapters: Map<String, Pair<XPropertySpec, Any>>,
        dbProperty: XPropertySpec,
        scope: CodeGenScope
    ) {
        if (adapter == null) {
            return
        }
        val connectionVar = scope.getTmpVar("_connection")
        val performBlock = InvokeWithLambdaParameter(
            scope = scope,
            functionName = RoomTypeNames.DB_UTIL.packageMember("performSuspending"),
            argFormat = listOf("%N", "%L", "%L"),
            args = listOf(dbProperty, /* isReadOnly = */ false, /* inTransaction = */ true),
            continuationParamName = continuationParamName,
            lambdaSpec = object : LambdaSpec(
                parameterTypeName = SQLiteDriverTypeNames.CONNECTION,
                parameterName = connectionVar,
                returnTypeName = adapter.returnType.asTypeName().box(),
                javaLambdaSyntaxAvailable = scope.javaLambdaSyntaxAvailable
            ) {
                override fun XCodeBlock.Builder.body(scope: CodeGenScope) {
                    adapter.generateMethodBody(
                        scope = scope,
                        parameters = parameters,
                        adapters = adapters,
                        connectionVar = connectionVar
                    )
                }
            }
        )
        scope.builder.add("return %L", performBlock)
    }

    override fun convertAndReturnCompat(
        parameters: List<ShortcutQueryParameter>,
        adapters: Map<String, Pair<XPropertySpec, Any>>,
        dbProperty: XPropertySpec,
        scope: CodeGenScope
    ) {
        error("Wrong convertAndReturn invoked")
    }

    override fun isMigratedToDriver(): Boolean = true
}