.kotlin.kotlin-compiler.1.3.11.source-code.FunctionsFromAnyGenerator.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
* that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.backend.common
import org.jetbrains.kotlin.builtins.KotlinBuiltIns
import org.jetbrains.kotlin.descriptors.ClassDescriptor
import org.jetbrains.kotlin.descriptors.FunctionDescriptor
import org.jetbrains.kotlin.descriptors.PropertyDescriptor
import org.jetbrains.kotlin.descriptors.ValueParameterDescriptor
import org.jetbrains.kotlin.psi.KtClass
import org.jetbrains.kotlin.psi.KtClassOrObject
import org.jetbrains.kotlin.psi.KtParameter
import org.jetbrains.kotlin.resolve.BindingContext
import org.jetbrains.kotlin.resolve.BindingContextUtils
abstract class FunctionsFromAnyGenerator(protected val declaration: KtClassOrObject, protected val bindingContext: BindingContext) {
protected val classDescriptor: ClassDescriptor = BindingContextUtils.getNotNull(bindingContext, BindingContext.CLASS, declaration)
open fun generate() {
val properties = primaryConstructorProperties
if (properties.isNotEmpty()) {
generateToStringIfNeeded(properties)
generateHashCodeIfNeeded(properties)
generateEqualsIfNeeded(properties)
}
}
protected abstract fun generateToStringMethod(function: FunctionDescriptor, properties: List)
protected abstract fun generateHashCodeMethod(function: FunctionDescriptor, properties: List)
protected abstract fun generateEqualsMethod(function: FunctionDescriptor, properties: List)
private fun generateToStringIfNeeded(properties: List) {
val function = CodegenUtil.getMemberToGenerate(
classDescriptor, "toString",
KotlinBuiltIns::isString, List::isEmpty
) ?: return
generateToStringMethod(function, properties)
}
private fun generateHashCodeIfNeeded(properties: List) {
val function = CodegenUtil.getMemberToGenerate(
classDescriptor, "hashCode",
KotlinBuiltIns::isInt, List::isEmpty
) ?: return
generateHashCodeMethod(function, properties)
}
private fun generateEqualsIfNeeded(properties: List) {
val function = CodegenUtil.getMemberToGenerate(
classDescriptor, "equals",
KotlinBuiltIns::isBoolean
) { parameters ->
parameters.size == 1 && KotlinBuiltIns.isNullableAny(parameters.first().type)
} ?: return
generateEqualsMethod(function, properties)
}
protected val primaryConstructorProperties: List
get() = primaryConstructorParameters
.filter { it.hasValOrVar() }
.map { bindingContext.get(BindingContext.PRIMARY_CONSTRUCTOR_PARAMETER, it)!! }
protected val primaryConstructorParameters: List
get() = (declaration as? KtClass)?.primaryConstructorParameters.orEmpty()
}