39 lines
1.1 KiB
Swift
39 lines
1.1 KiB
Swift
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// ===----------------------------------------------------------------------===
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//
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// This source file is part of the DiscogsService open source project
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//
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// Copyright (c) 2025 Röck+Cöde VoF. and the DiscogsService project authors
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// Licensed under Apache license v2.0
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//
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// See LICENSE for license information
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// See CONTRIBUTORS for the list of DiscogsService project authors
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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// ===----------------------------------------------------------------------===
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/// A validation rule type that checks whether an input is empty or not.
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struct NotEmptyValidationRule: InputValidationRule {
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// MARK: Functions
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func validate(_ input: String?) throws -> Bool {
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guard let input else {
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return false
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}
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guard !input.isEmpty else {
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throw InputValidationError.inputIsEmpty
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}
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return true
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}
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}
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// MARK: - Constants
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extension InputValidationRule where Self == NotEmptyValidationRule {
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/// A validation rule that checks whether an input is empty or not.
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static var notEmpty: Self { .init() }
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}
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