A Swift property wrapper which stores the previous value

IKEDA Sho

Last update: Feb 22, 2022

Related tags

Utility swift-with-previous

Overview

swift-with-previous

A Swift property wrapper which stores the previous value. The previous value can be get by the projected value $propertyName.

import XCTest
import WithPrevious

final class WithPreviousTests: XCTestCase {
    @WithPrevious var value = 0

    func testWithPreviousWrapper() {
        XCTAssertEqual(value, 0)
        XCTAssertNil($value)

        value = 10

        XCTAssertEqual(value, 10)
        XCTAssertEqual($value, 0)
    }
}

License

MIT license. See LICENSE for details.

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Releases(1.0.0)

1.0.0(Sep 7, 2021)
Initial release

Source code(tar.gz)
Source code(zip)

Owner

IKEDA Sho

GitHub

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