JavacMethodParameter.kt
/*
* Copyright (C) 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.XExecutableParameterElement
import androidx.room.compiler.processing.XMemberContainer
import androidx.room.compiler.processing.javac.kotlin.KmTypeContainer
import androidx.room.compiler.processing.javac.kotlin.KmValueParameterContainer
import androidx.room.compiler.processing.util.sanitizeAsJavaParameterName
import javax.lang.model.element.VariableElement
internal class JavacMethodParameter(
env: JavacProcessingEnv,
override val enclosingElement: JavacExecutableElement,
element: VariableElement,
kotlinMetadataFactory: () -> KmValueParameterContainer?,
val argIndex: Int
) : JavacVariableElement(env, element), XExecutableParameterElement {
override fun isContinuationParam() =
enclosingElement is JavacMethodElement &&
enclosingElement.isSuspendFunction() &&
enclosingElement.parameters.last() == this
override fun isReceiverParam() =
enclosingElement is JavacMethodElement &&
enclosingElement.isExtensionFunction() &&
enclosingElement.parameters.first() == this
override fun isVarArgs() =
kotlinMetadata?.isVarArgs() ?: (enclosingElement.isVarArgs() &&
enclosingElement.parameters.last() == this)
override fun isKotlinPropertyParam() =
enclosingElement is JavacMethodElement &&
enclosingElement.isKotlinPropertyMethod()
override val kotlinMetadata by lazy { kotlinMetadataFactory() }
override val name: String by lazy {
if (isReceiverParam() && enclosingElement.isAbstract()) {
// Receiver parameter names for abstract methods are not reliable across different
// versions of KAPT so we just build the name ourselves to match KSP.
// https://youtrack.jetbrains.com/issue/KT-18048/kapt-drops-method-parameter-names
"\$this\$${enclosingElement.name}"
} else {
(kotlinMetadata?.name ?: element.simpleName.toString()).let {
if (it == "<set-?>") {
"p$argIndex"
} else {
it
}
}
}
}
override val jvmName: String by lazy {
name.sanitizeAsJavaParameterName(argIndex)
}
override val kotlinType: KmTypeContainer?
get() = kotlinMetadata?.type
override val hasDefaultValue: Boolean
get() = kotlinMetadata?.hasDefault() ?: false
override val fallbackLocationText: String
get() = if (
enclosingElement is JavacMethodElement &&
enclosingElement.isSuspendFunction() &&
this === enclosingElement.parameters.last()
) {
"return type of ${enclosingElement.fallbackLocationText}"
} else {
"$name in ${enclosingElement.fallbackLocationText}"
}
override val closestMemberContainer: XMemberContainer by lazy {
enclosingElement.enclosingElement
}
}