plugins/kotlin/uast/uast-kotlin-base/src/org/jetbrains/uast/kotlin/declarations/AbstractKotlinUClass.kt


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// Copyright 2000-2021 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.

package org.jetbrains.uast.kotlin

import org.jetbrains.annotations.ApiStatus
import org.jetbrains.kotlin.asJava.classes.KtLightClass
import org.jetbrains.kotlin.psi.KtClassOrObject
import org.jetbrains.kotlin.psi.KtDelegatedSuperTypeEntry
import org.jetbrains.kotlin.psi.KtModifierListOwner
import org.jetbrains.uast.*
import org.jetbrains.uast.internal.acceptList
import org.jetbrains.uast.visitor.UastVisitor

@ApiStatus.Internal
abstract class AbstractKotlinUClass(
    givenParent: UElement?
) : KotlinAbstractUElement(givenParent), UClass, UAnchorOwner {

    override val uastDeclarations by lz {
        mutableListOf<UDeclaration>().apply {
            addAll(fields)
            addAll(initializers)
            addAll(methods)
            addAll(innerClasses)
        }
    }

    protected open val ktClass: KtClassOrObject?
        get() = (psi as? KtLightClass)?.kotlinOrigin

    override val uastSuperTypes: List<UTypeReferenceExpression>
        get() = ktClass?.superTypeListEntries.orEmpty().mapNotNull { it.typeReference }.map {
            KotlinUTypeReferenceExpression(it, this)
        }

    private val delegateExpressions: List<UExpression> by lz {
        ktClass?.superTypeListEntries.orEmpty()
            .filterIsInstance<KtDelegatedSuperTypeEntry>()
            .map { KotlinSupertypeDelegationUExpression(it, this) }
    }

    override fun accept(visitor: UastVisitor) {
        if (visitor.visitClass(this)) return
        delegateExpressions.acceptList(visitor)
        uAnnotations.acceptList(visitor)
        uastDeclarations.acceptList(visitor)
        visitor.afterVisitClass(this)
    }

    override val uAnnotations: List<UAnnotation> by lz {
        (sourcePsi as? KtModifierListOwner)?.annotationEntries.orEmpty().map {
            baseResolveProviderService.baseKotlinConverter.convertAnnotation(it, this)
        }
    }

    override fun equals(other: Any?) = other is AbstractKotlinUClass && psi == other.psi
    override fun hashCode() = psi.hashCode()
}