room/compiler/src/main/kotlin/androidx/room/solver/types/BoxedBooleanToBoxedIntConverter.kt

/*
 * Copyright (C) 2016 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.types

import androidx.room.ext.L
import androidx.room.compiler.processing.XProcessingEnv
import androidx.room.solver.CodeGenScope

/**
 * int to boolean adapter.
 */
object BoxedBooleanToBoxedIntConverter {
    fun create(processingEnvironment: XProcessingEnv): List<TypeConverter> {
        val tBoolean = processingEnvironment.requireType("java.lang.Boolean")
        val tInt = processingEnvironment.requireType("java.lang.Integer")
        return listOf(
                object : TypeConverter(tBoolean, tInt) {
                    override fun convert(
                        inputVarName: String,
                        outputVarName: String,
                        scope: CodeGenScope
                    ) {
                        scope.builder().addStatement("$L = $L == null ? null : ($L ? 1 : 0)",
                                outputVarName, inputVarName, inputVarName)
                    }
                },
                object : TypeConverter(tInt, tBoolean) {
                    override fun convert(
                        inputVarName: String,
                        outputVarName: String,
                        scope: CodeGenScope
                    ) {
                        scope.builder().addStatement("$L = $L == null ? null : $L != 0",
                                outputVarName, inputVarName, inputVarName)
                    }
                }
        )
    }
}