KspProcessingEnv.kt
/*
* Copyright 2020 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.processing.ksp
import androidx.room.compiler.processing.XArrayType
import androidx.room.compiler.processing.XDeclaredType
import androidx.room.compiler.processing.XMessager
import androidx.room.compiler.processing.XProcessingEnv
import androidx.room.compiler.processing.XType
import androidx.room.compiler.processing.XTypeElement
import androidx.room.compiler.processing.javac.XTypeElementStore
import org.jetbrains.kotlin.ksp.processing.CodeGenerator
import org.jetbrains.kotlin.ksp.processing.KSPLogger
import org.jetbrains.kotlin.ksp.processing.Resolver
import org.jetbrains.kotlin.ksp.symbol.KSClassDeclaration
import org.jetbrains.kotlin.ksp.symbol.KSType
import org.jetbrains.kotlin.ksp.symbol.KSTypeReference
import org.jetbrains.kotlin.ksp.symbol.Variance
import javax.annotation.processing.Filer
internal class KspProcessingEnv(
override val options: Map<String, String>,
private val codeGenerator: CodeGenerator,
private val logger: KSPLogger,
val resolver: Resolver
) : XProcessingEnv {
private val typeElementStore =
XTypeElementStore { qName ->
resolver.getClassDeclarationByName(
resolver.getKSNameFromString(qName)
)?.let {
KspTypeElement(
env = this,
declaration = it
)
}
}
override val messager: XMessager
get() = TODO("Not yet implemented")
override val filer: Filer
get() = TODO("Not yet implemented")
val commonTypes = CommonTypes(resolver)
override fun findTypeElement(qName: String): XTypeElement? {
return typeElementStore[qName]
}
override fun findType(qName: String): XType? {
return resolver.findClass(qName)?.let {
wrap(it.asStarProjectedType())
}
}
override fun findGeneratedAnnotation(): XTypeElement? {
TODO("Not yet implemented")
}
override fun getDeclaredType(type: XTypeElement, vararg types: XType): XDeclaredType {
TODO("Not yet implemented")
}
override fun getArrayType(type: XType): XArrayType {
check(type is KspType)
val arrayType = resolver.requireClass(KOTLIN_ARRAY_Q_NAME)
val ksType = arrayType.asType(
listOf(resolver.getTypeArgument(
type.ksType.createTypeReference(),
Variance.INVARIANT
))
)
return KspArrayType(
env = this,
ksType = ksType
)
}
fun wrap(ksType: KSType): KspType {
return if (ksType.declaration.qualifiedName?.asString() == KOTLIN_ARRAY_Q_NAME) {
KspArrayType(
env = this,
ksType = ksType
)
} else {
KspType(
env = this,
ksType = ksType
)
}
}
fun wrap(ksTypeReference: KSTypeReference): KspType {
return wrap(ksTypeReference.requireType())
}
fun wrapClassDeclaration(declaration: KSClassDeclaration): KspTypeElement {
return KspTypeElement(
env = this,
declaration = declaration
)
}
class CommonTypes(resolver: Resolver) {
val nullableInt by lazy {
resolver.builtIns.intType.makeNullable()
}
val nullableLong by lazy {
resolver.builtIns.longType.makeNullable()
}
val nullableByte by lazy {
resolver.builtIns.byteType.makeNullable()
}
}
companion object {
private const val KOTLIN_ARRAY_Q_NAME = "kotlin.Array"
}
}