JavacConstructorElement.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.javac
import androidx.room.compiler.processing.XConstructorElement
import androidx.room.compiler.processing.XConstructorType
import androidx.room.compiler.processing.XType
import androidx.room.compiler.processing.XTypeParameterElement
import androidx.room.compiler.processing.javac.kotlin.KmConstructorContainer
import com.google.auto.common.MoreTypes
import javax.lang.model.element.ElementKind
import javax.lang.model.element.ExecutableElement
internal class JavacConstructorElement(
env: JavacProcessingEnv,
element: ExecutableElement
) : JavacExecutableElement(env, element),
XConstructorElement {
init {
check(element.kind == ElementKind.CONSTRUCTOR) {
"Constructor element is constructed with invalid type: $element"
}
}
override fun isSyntheticConstructorForJvmOverloads() = false
override val name: String
get() = "<init>"
override val typeParameters: List<XTypeParameterElement> by lazy {
element.typeParameters.map {
// Type parameters are not allowed in Kotlin sources, so if type parameters exist they
// must have come from Java sources. Thus, there's no kotlin metadata so just use null.
JavacTypeParameterElement(env, this, it, null)
}
}
override val parameters: List<JavacMethodParameter> by lazy {
element.parameters.mapIndexed { index, variable ->
JavacMethodParameter(
env = env,
enclosingElement = this,
element = variable,
kotlinMetadataFactory = { kotlinMetadata?.parameters?.getOrNull(index) },
argIndex = index
)
}
}
override val executableType: XConstructorType by lazy {
JavacConstructorType(
env = env,
element = this,
executableType = MoreTypes.asExecutable(element.asType())
)
}
override fun asMemberOf(other: XType): XConstructorType {
return if (other !is JavacDeclaredType || enclosingElement.type.isSameType(other)) {
executableType
} else {
val asMemberOf = env.typeUtils.asMemberOf(other.typeMirror, element)
JavacConstructorType(
env = env,
element = this,
executableType = MoreTypes.asExecutable(asMemberOf)
)
}
}
override val kotlinMetadata: KmConstructorContainer? by lazy {
(enclosingElement as? JavacTypeElement)?.kotlinMetadata
?.getConstructorMetadata(element)
}
}