org.jetbrains.kotlin.backend.common.DeepCopyIrTreeWithDeclarations.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2017 JetBrains s.r.o.
*
* 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 org.jetbrains.kotlin.backend.common
import org.jetbrains.kotlin.descriptors.VariableDescriptor
import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
import org.jetbrains.kotlin.ir.IrElement
import org.jetbrains.kotlin.ir.declarations.IrVariable
import org.jetbrains.kotlin.ir.descriptors.WrappedVariableDescriptor
import org.jetbrains.kotlin.ir.expressions.IrLoop
import org.jetbrains.kotlin.ir.util.DeepCopyIrTreeWithSymbols
import org.jetbrains.kotlin.ir.util.DeepCopySymbolRemapper
import org.jetbrains.kotlin.ir.util.DeepCopyTypeRemapper
import org.jetbrains.kotlin.ir.util.DescriptorsRemapper
import org.jetbrains.kotlin.ir.visitors.acceptVoid
@Suppress("UNCHECKED_CAST")
@OptIn(ObsoleteDescriptorBasedAPI::class)
fun T.deepCopyWithVariables(): T {
val descriptorsRemapper = object : DescriptorsRemapper {
override fun remapDeclaredVariable(descriptor: VariableDescriptor) = WrappedVariableDescriptor()
}
val symbolsRemapper = DeepCopySymbolRemapper(descriptorsRemapper)
acceptVoid(symbolsRemapper)
val typesRemapper = DeepCopyTypeRemapper(symbolsRemapper)
return this.transform(
object : DeepCopyIrTreeWithSymbols(symbolsRemapper, typesRemapper) {
override fun getNonTransformedLoop(irLoop: IrLoop): IrLoop {
return irLoop
}
override fun visitVariable(declaration: IrVariable): IrVariable {
val variable = super.visitVariable(declaration)
variable.descriptor.let { if (it is WrappedVariableDescriptor) it.bind(variable) }
return variable
}
},
null
) as T
}