org.jetbrains.kotlin.analysis.decompiler.psi.text.DecompiledText.kt Maven / Gradle / Ivy

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Kotlin Compiler

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/*
 * Copyright 2010-2021 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.analysis.decompiler.psi.text

import com.intellij.openapi.util.TextRange
import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
import org.jetbrains.kotlin.utils.keysToMap

data class DecompiledText(val text: String, val index: DecompiledTextIndex)

interface DecompiledTextIndexer {
    fun indexDescriptor(descriptor: DeclarationDescriptor): Collection
}

// In-memory HashMap-based index of decompiled text
// allows navigation features
class DecompiledTextIndex(private val indexers: Collection>) {
    private val indexerToMap: Map, MutableMap> = indexers.keysToMap { hashMapOf() }

    fun addToIndex(descriptor: DeclarationDescriptor, textRange: TextRange) {
        indexers.forEach { mapper ->
            val correspondingMap = indexerToMap.getValue(mapper)
            mapper.indexDescriptor(descriptor).forEach { key ->
                correspondingMap[key] = textRange
            }
        }
    }

    fun  getRange(mapper: DecompiledTextIndexer, key: T): TextRange? = indexerToMap[mapper]?.get(key)

    companion object {
        val Empty = DecompiledTextIndex(listOf())
    }
}