XPropertySpec.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.compiler.codegen
import androidx.room.compiler.codegen.java.JavaPropertySpec
import androidx.room.compiler.codegen.java.NONNULL_ANNOTATION
import androidx.room.compiler.codegen.java.NULLABLE_ANNOTATION
import androidx.room.compiler.codegen.java.toJavaVisibilityModifier
import androidx.room.compiler.codegen.kotlin.KotlinPropertySpec
import androidx.room.compiler.codegen.kotlin.toKotlinVisibilityModifier
import androidx.room.compiler.processing.XNullability
import com.squareup.javapoet.FieldSpec
import com.squareup.kotlinpoet.PropertySpec
import javax.lang.model.element.Modifier
interface XPropertySpec : TargetLanguage {
val name: String
interface Builder : TargetLanguage {
fun addAnnotation(annotation: XAnnotationSpec): Builder
fun initializer(initExpr: XCodeBlock): Builder
fun build(): XPropertySpec
}
companion object {
fun builder(
language: CodeLanguage,
name: String,
typeName: XTypeName,
visibility: VisibilityModifier,
isMutable: Boolean = false,
): Builder {
return when (language) {
CodeLanguage.JAVA -> JavaPropertySpec.Builder(
name,
FieldSpec.builder(typeName.java, name).apply {
val visibilityModifier = visibility.toJavaVisibilityModifier()
// TODO(b/247242374) Add nullability annotations for non-private fields
if (visibilityModifier != Modifier.PRIVATE) {
if (typeName.nullability == XNullability.NULLABLE) {
addAnnotation(NULLABLE_ANNOTATION)
} else if (typeName.nullability == XNullability.NONNULL) {
addAnnotation(NONNULL_ANNOTATION)
}
}
addModifiers(visibilityModifier)
if (!isMutable) {
addModifiers(Modifier.FINAL)
}
}
)
CodeLanguage.KOTLIN -> KotlinPropertySpec.Builder(
name,
PropertySpec.builder(name, typeName.kotlin).apply {
mutable(isMutable)
addModifiers(visibility.toKotlinVisibilityModifier())
}
)
}
}
fun XPropertySpec.Builder.apply(
javaFieldBuilder: com.squareup.javapoet.FieldSpec.Builder.() -> Unit,
kotlinPropertyBuilder: com.squareup.kotlinpoet.PropertySpec.Builder.() -> Unit,
): XPropertySpec.Builder = apply {
when (language) {
CodeLanguage.JAVA -> {
check(this is JavaPropertySpec.Builder)
this.actual.javaFieldBuilder()
}
CodeLanguage.KOTLIN -> {
check(this is KotlinPropertySpec.Builder)
this.actual.kotlinPropertyBuilder()
}
}
}
}
}