org.jetbrains.kotlin.resolve.VisibilityUtil.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.resolve

import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor
import org.jetbrains.kotlin.descriptors.DescriptorVisibilities

fun findMemberWithMaxVisibility(descriptors: Collection): CallableMemberDescriptor {
    assert(descriptors.isNotEmpty())

    var descriptor: CallableMemberDescriptor? = null
    for (candidate in descriptors) {
        if (descriptor == null) {
            descriptor = candidate
            continue
        }

        val result = DescriptorVisibilities.compare(descriptor.visibility, candidate.visibility)
        if (result != null && result < 0) {
            descriptor = candidate
        }
    }
    return descriptor!!
}