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/*
* Copyright 2010-2020 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.overrides
import org.jetbrains.kotlin.ir.declarations.*
import org.jetbrains.kotlin.ir.util.*
class FakeOverrideCopier(
private val symbolRemapper: SymbolRemapper,
private val typeRemapper: TypeRemapper,
private val symbolRenamer: SymbolRenamer,
private val makeExternal: Boolean = false,
) : DeepCopyIrTreeWithSymbols(symbolRemapper, typeRemapper, symbolRenamer) {
private fun T.transformFunctionChildren(declaration: T): T =
apply {
transformAnnotations(declaration)
copyTypeParametersFrom(declaration)
typeRemapper.withinScope(this) {
// This is the more correct way to produce dispatch receiver for a fake override,
// but some lowerings still expect the below behavior as produced by the current psi2ir.
/*
val superDispatchReceiver = declaration.dispatchReceiverParameter!!
val dispatchReceiverSymbol = IrValueParameterSymbolImpl(WrappedReceiverParameterDescriptor())
val dispatchReceiverType = destinationClass.defaultType
dispatchReceiverParameter = IrValueParameterImpl(
superDispatchReceiver.startOffset,
superDispatchReceiver.endOffset,
superDispatchReceiver.origin,
dispatchReceiverSymbol,
superDispatchReceiver.name,
superDispatchReceiver.index,
dispatchReceiverType,
null,
superDispatchReceiver.isCrossinline,
superDispatchReceiver.isNoinline
)
*/
// Should fake override's receiver be the current class is an open question.
dispatchReceiverParameter = declaration.dispatchReceiverParameter?.transform()
extensionReceiverParameter = declaration.extensionReceiverParameter?.transform()
returnType = typeRemapper.remapType(declaration.returnType)
this.valueParameters = declaration.valueParameters.transform()
}
}
override fun visitSimpleFunction(declaration: IrSimpleFunction): IrSimpleFunction =
declaration.factory.createFakeOverrideFunction(
declaration.startOffset, declaration.endOffset,
IrDeclarationOrigin.FAKE_OVERRIDE,
symbolRenamer.getFunctionName(declaration.symbol),
declaration.visibility,
declaration.modality,
declaration.returnType,
isInline = declaration.isInline,
isExternal = makeExternal,
isTailrec = declaration.isTailrec,
isSuspend = declaration.isSuspend,
isExpect = declaration.isExpect,
isOperator = declaration.isOperator,
isInfix = declaration.isInfix
).apply {
transformFunctionChildren(declaration)
}
override fun visitProperty(declaration: IrProperty): IrProperty =
declaration.factory.createFakeOverrideProperty(
declaration.startOffset, declaration.endOffset,
IrDeclarationOrigin.FAKE_OVERRIDE,
declaration.name,
declaration.visibility,
declaration.modality,
isVar = declaration.isVar,
isConst = declaration.isConst,
isLateinit = declaration.isLateinit,
isDelegated = declaration.isDelegated,
isExpect = declaration.isExpect,
isExternal = makeExternal
).apply {
transformAnnotations(declaration)
this.getter = declaration.getter?.transform()
this.setter = declaration.setter?.transform()
}
override fun visitValueParameter(declaration: IrValueParameter): IrValueParameter =
declaration.factory.createValueParameter(
declaration.startOffset, declaration.endOffset,
mapDeclarationOrigin(declaration.origin),
symbolRemapper.getDeclaredValueParameter(declaration.symbol),
symbolRenamer.getValueParameterName(declaration.symbol),
declaration.index,
declaration.type.remapType(),
declaration.varargElementType?.remapType(),
declaration.isCrossinline,
declaration.isNoinline,
declaration.isHidden,
declaration.isAssignable
).apply {
transformAnnotations(declaration)
// Don't set the default value for fake overrides.
}
}
