59 lines
1.6 KiB
Swift
59 lines
1.6 KiB
Swift
// Copyright (c) 2018-2020 XMLCoder contributors
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//
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// This software is released under the MIT License.
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// https://opensource.org/licenses/MIT
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//
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// Created by Vincent Esche on 12/17/18.
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//
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struct IntBox: Equatable {
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typealias Unboxed = Int64
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let unboxed: Unboxed
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init<Integer: SignedInteger>(_ unboxed: Integer) {
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self.unboxed = Unboxed(unboxed)
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}
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init?(xmlString: String) {
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guard let unboxed = Unboxed(xmlString) else {
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return nil
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}
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self.init(unboxed)
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}
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func unbox<Integer: BinaryInteger>() -> Integer? {
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return Integer(exactly: unboxed)
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}
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}
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extension IntBox: Box {
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var isNull: Bool {
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return false
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}
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/// # Lexical representation
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/// Integer has a lexical representation consisting of a finite-length sequence of
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/// decimal digits with an optional leading sign. If the sign is omitted, `"+"` is assumed.
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/// For example: `-1`, `0`, `12678967543233`, `+100000`.
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///
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/// # Canonical representation
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/// The canonical representation for integer is defined by prohibiting certain
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/// options from the Lexical representation. Specifically, the preceding optional
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/// `"+"` sign is prohibited and leading zeroes are prohibited.
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///
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/// ---
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///
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/// [Schema definition](https://www.w3.org/TR/xmlschema-2/#integer)
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var xmlString: String? {
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return unboxed.description
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}
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}
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extension IntBox: SimpleBox {}
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extension IntBox: CustomStringConvertible {
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var description: String {
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return unboxed.description
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}
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}
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