org.jetbrains.kotlin.ir.util.DeepCopyTypeRemapper.kt Maven / Gradle / Ivy

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/*
 * Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
 * 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.ir.util

import org.jetbrains.kotlin.ir.declarations.IrTypeParametersContainer
import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
import org.jetbrains.kotlin.ir.types.*
import org.jetbrains.kotlin.ir.types.impl.IrSimpleTypeImpl
import org.jetbrains.kotlin.ir.types.impl.IrTypeAbbreviationImpl
import org.jetbrains.kotlin.ir.types.impl.makeTypeProjection

class DeepCopyTypeRemapper(
    private val symbolRemapper: SymbolRemapper
) : TypeRemapper {

    lateinit var deepCopy: DeepCopyIrTreeWithSymbols

    override fun enterScope(irTypeParametersContainer: IrTypeParametersContainer) {
        // TODO
    }

    override fun leaveScope() {
        // TODO
    }

    override fun remapType(type: IrType): IrType =
        if (type !is IrSimpleType)
            type
        else
            IrSimpleTypeImpl(
                null,
                symbolRemapper.getReferencedClassifier(type.classifier),
                type.hasQuestionMark,
                type.arguments.map { remapTypeArgument(it) },
                type.annotations.map { it.transform(deepCopy, null) as IrConstructorCall },
                type.abbreviation?.remapTypeAbbreviation()
            )

    private fun remapTypeArgument(typeArgument: IrTypeArgument): IrTypeArgument =
        if (typeArgument is IrTypeProjection)
            makeTypeProjection(this.remapType(typeArgument.type), typeArgument.variance)
        else
            typeArgument

    private fun IrTypeAbbreviation.remapTypeAbbreviation() =
        IrTypeAbbreviationImpl(
            symbolRemapper.getReferencedTypeAlias(typeAlias),
            hasQuestionMark,
            arguments.map { remapTypeArgument(it) },
            annotations
        )
}