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• IrClassifierEqualityChecker.kt

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org.jetbrains.kotlin.ir.symbols.IrClassifierEqualityChecker.kt Maven / Gradle / Ivy

/*
 * Copyright 2010-2019 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.symbols

interface IrClassifierEqualityChecker {
    fun areEqual(left: IrClassifierSymbol, right: IrClassifierSymbol): Boolean

    fun getHashCode(symbol: IrClassifierSymbol): Int
}

object FqNameEqualityChecker : IrClassifierEqualityChecker {
    override fun areEqual(left: IrClassifierSymbol, right: IrClassifierSymbol): Boolean =
        left === right ||
                left.signature != null && left.signature == right.signature

    override fun getHashCode(symbol: IrClassifierSymbol): Int =
        symbol.signature?.hashCode() ?: symbol.hashCode()
}