org.jetbrains.kotlin.codegen.syntheticAccessorUtil.kt Maven / Gradle / Ivy

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/*
 * Copyright 2010-2015 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.codegen

import org.jetbrains.kotlin.descriptors.*
import org.jetbrains.kotlin.resolve.DescriptorUtils

enum class AccessorKind(val suffix: String) {
    NORMAL("p"),
    IN_CLASS_COMPANION("cp"),
    FIELD_FROM_LOCAL("lp"),
    LATEINIT_INTRINSIC("li"),
    JVM_DEFAULT_COMPATIBILITY("jd")
}

private fun CallableMemberDescriptor.getJvmName() =
    DescriptorUtils.getJvmName(this) ?: name.asString()

fun getAccessorNameSuffix(
    descriptor: CallableMemberDescriptor, superCallDescriptor: ClassDescriptor?, accessorKind: AccessorKind
): String {
    if (accessorKind == AccessorKind.JVM_DEFAULT_COMPATIBILITY)
        return descriptor.getJvmName() + "$" + AccessorKind.JVM_DEFAULT_COMPATIBILITY.suffix

    val suffix = when (descriptor) {
        is ConstructorDescriptor ->
            return "will be ignored"
        is SimpleFunctionDescriptor ->
            descriptor.getJvmName()
        is PropertyDescriptor ->
            descriptor.getJvmName() + "$" + accessorKind.suffix
        else ->
            throw UnsupportedOperationException("Do not know how to create accessor for descriptor $descriptor")
    }
    return if (superCallDescriptor == null) suffix else "$suffix\$s${superCallDescriptor.syntheticAccessorToSuperSuffix()}"
}

fun ClassDescriptor.syntheticAccessorToSuperSuffix(): String =
    // TODO: change this to `fqNameUnsafe.asString().replace(".", "_")` as soon as we're ready to break compatibility with pre-KT-21178 code
    name.asString().hashCode().toString()