kotlin.reflect.jvm.internal.impl.builtins.CompanionObjectMapping.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 kotlin.reflect.jvm.internal.impl.builtins

import kotlin.reflect.jvm.internal.impl.descriptors.ClassDescriptor
import kotlin.reflect.jvm.internal.impl.name.ClassId
import kotlin.reflect.jvm.internal.impl.resolve.DescriptorUtils
import kotlin.reflect.jvm.internal.impl.resolve.descriptorUtil.classId
import java.util.*

object CompanionObjectMapping {
    private val classIds =
            (PrimitiveType.NUMBER_TYPES.map(KotlinBuiltIns::getPrimitiveFqName) +
             KotlinBuiltIns.FQ_NAMES.string.toSafe() +
             KotlinBuiltIns.FQ_NAMES._enum.toSafe()).mapTo(linkedSetOf(), ClassId::topLevel)

    fun allClassesWithIntrinsicCompanions(): Set =
            Collections.unmodifiableSet(classIds)

    fun isMappedIntrinsicCompanionObject(classDescriptor: ClassDescriptor): Boolean =
            DescriptorUtils.isCompanionObject(classDescriptor) && classDescriptor.classId?.outerClassId in classIds
}