82 lines
3.1 KiB
TypeScript
82 lines
3.1 KiB
TypeScript
// License for this File only:
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//
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// MIT License
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//
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// Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (https://sindresorhus.com)
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// Copyright (c) Vercel, Inc. (https://vercel.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
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// documentation files (the "Software"), to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
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// to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or substantial portions
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// of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
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// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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// CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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import { z } from 'zod';
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/**
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Create a type from an object with all keys and nested keys set to optional.
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The helper supports normal objects and Zod schemas (which are resolved automatically).
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It always recurses into arrays.
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Adopted from [type-fest](https://github.com/sindresorhus/type-fest/tree/main) PartialDeep.
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*/
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export type DeepPartial<T> = T extends
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| null
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| undefined
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| string
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| number
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| boolean
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| symbol
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| bigint
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| void
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| Date
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| RegExp
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| ((...arguments_: any[]) => unknown)
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| (new (...arguments_: any[]) => unknown)
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? T
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: T extends Map<infer KeyType, infer ValueType>
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? PartialMap<KeyType, ValueType>
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: T extends Set<infer ItemType>
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? PartialSet<ItemType>
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: T extends ReadonlyMap<infer KeyType, infer ValueType>
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? PartialReadonlyMap<KeyType, ValueType>
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: T extends ReadonlySet<infer ItemType>
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? PartialReadonlySet<ItemType>
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: T extends z.Schema<any>
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? DeepPartial<T['_type']>
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: T extends object
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? T extends ReadonlyArray<infer ItemType> // Test for arrays/tuples, per https://github.com/microsoft/TypeScript/issues/35156
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? ItemType[] extends T // Test for arrays (non-tuples) specifically
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? readonly ItemType[] extends T // Differentiate readonly and mutable arrays
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? ReadonlyArray<DeepPartial<ItemType | undefined>>
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: Array<DeepPartial<ItemType | undefined>>
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: PartialObject<T> // Tuples behave properly
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: PartialObject<T>
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: unknown;
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type PartialMap<KeyType, ValueType> = {} & Map<
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DeepPartial<KeyType>,
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DeepPartial<ValueType>
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>;
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type PartialSet<T> = {} & Set<DeepPartial<T>>;
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type PartialReadonlyMap<KeyType, ValueType> = {} & ReadonlyMap<
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DeepPartial<KeyType>,
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DeepPartial<ValueType>
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>;
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type PartialReadonlySet<T> = {} & ReadonlySet<DeepPartial<T>>;
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type PartialObject<ObjectType extends object> = {
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[KeyType in keyof ObjectType]?: DeepPartial<ObjectType[KeyType]>;
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};
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