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remove unused file

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syuilo 2024-06-21 13:18:19 +09:00
parent bf33382082
commit 811ffbf3a4
2 changed files with 0 additions and 48 deletions
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25
packages/backend/src/misc/prelude/maybe.ts
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@ -1,25 +0,0 @@
/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
export interface IMaybe<T> {
isJust(): this is IJust<T>;
}
export interface IJust<T> extends IMaybe<T> {
get(): T;
}
export function just<T>(value: T): IJust<T> {
return {
isJust: () => true,
get: () => value,
};
}
export function nothing<T>(): IMaybe<T> {
return {
isJust: () => false,
};
}

23
packages/backend/test/prelude/maybe.ts
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@ -1,23 +0,0 @@
/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import * as assert from 'assert';
import { just, nothing } from '../../src/misc/prelude/maybe.js';
describe('just', () => {
test('has a value', () => {
assert.deepStrictEqual(just(3).isJust(), true);
});
test('has the inverse called get', () => {
assert.deepStrictEqual(just(3).get(), 3);
});
});
describe('nothing', () => {
test('has no value', () => {
assert.deepStrictEqual(nothing().isJust(), false);
});
});