org.jetbrains.kotlin.fir.resolve.providers.impl.FirQualifierResolverImpl.kt Maven / Gradle / Ivy
/*
* 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.fir.resolve.providers.impl
import org.jetbrains.kotlin.fir.FirSession
import org.jetbrains.kotlin.fir.NoMutableState
import org.jetbrains.kotlin.fir.resolve.FirQualifierResolver
import org.jetbrains.kotlin.fir.resolve.firSymbolProvider
import org.jetbrains.kotlin.fir.symbols.impl.FirClassifierSymbol
import org.jetbrains.kotlin.fir.types.FirQualifierPart
import org.jetbrains.kotlin.name.ClassId
import org.jetbrains.kotlin.name.FqName
@NoMutableState
class FirQualifierResolverImpl(val session: FirSession) : FirQualifierResolver() {
override fun resolveSymbolWithPrefix(parts: List, prefix: ClassId): FirClassifierSymbol<*>? {
val symbolProvider = session.firSymbolProvider
val fqName = ClassId(
prefix.packageFqName,
parts.drop(1).fold(prefix.relativeClassName) { result, suffix -> result.child(suffix.name) },
false
)
return symbolProvider.getClassLikeSymbolByFqName(fqName)
}
override fun resolveSymbol(parts: List): FirClassifierSymbol<*>? {
val firProvider = session.firSymbolProvider
if (parts.isNotEmpty()) {
val lastPart = mutableListOf()
val firstPart = parts.toMutableList()
while (firstPart.isNotEmpty()) {
lastPart.add(0, firstPart.last())
firstPart.removeAt(firstPart.lastIndex)
val fqName = ClassId(firstPart.toFqName(), lastPart.toFqName(), false)
val foundSymbol = firProvider.getClassLikeSymbolByFqName(fqName)
if (foundSymbol != null) {
return foundSymbol
}
}
}
return null
}
private fun List.toFqName() = fold(FqName.ROOT) { a, b -> a.child(b.name) }
}