39 lines
1.4 KiB
Kotlin
39 lines
1.4 KiB
Kotlin
/*
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* Copyright 2025 Sergey S. Chernov real.sergeych@gmail.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package net.sergeych.lyng
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enum class Visibility {
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Public, Private, Protected;//, Internal
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val isPublic by lazy { this == Public }
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@Suppress("unused")
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val isProtected by lazy { this == Protected }
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}
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/** MI-aware visibility check: whether [caller] can access a member declared in [decl] with [visibility]. */
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fun canAccessMember(visibility: Visibility, decl: net.sergeych.lyng.obj.ObjClass?, caller: net.sergeych.lyng.obj.ObjClass?): Boolean {
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return when (visibility) {
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Visibility.Public -> true
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Visibility.Private -> (decl != null && caller === decl)
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Visibility.Protected -> when {
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decl == null -> false
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caller == null -> false
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caller === decl -> true
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else -> (caller.allParentsSet.contains(decl))
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}
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}
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} |