Support method chaining #78
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mizdra
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Mar 22, 2024
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| class DefineTypeFactory< | ||
| Type extends Record<string, unknown>, | ||
| TransientFields extends Record<string, unknown>, | ||
| > extends Function { | ||
| _defaultTransientFields: TransientFields; | ||
| constructor(defaultTransientFields: TransientFields) { | ||
| super(); | ||
| this._defaultTransientFields = defaultTransientFields; | ||
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| // ref: https://gist.github.com/arccoza/50fe61c8430fc97a463bf6b8960776ce | ||
| // eslint-disable-next-line no-constructor-return | ||
| return new Proxy(this, { | ||
| // eslint-disable-next-line @typescript-eslint/no-explicit-any | ||
| apply: (target, _thisArg, [options]: [any]) => target._apply(options), | ||
| }); | ||
| } | ||
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| _apply< | ||
| _DefaultFieldsResolver extends FieldsResolver<Type & TransientFields>, | ||
| _Traits extends Traits<Type, TransientFields> = Traits<Type, TransientFields>, | ||
| >( | ||
| options: TypeFactoryDefineOptions<Type, TransientFields, _DefaultFieldsResolver, _Traits>, | ||
| ): TypeFactoryInterface<Type, TransientFields, _DefaultFieldsResolver, _Traits> { | ||
| return defineTypeFactoryInternal<Type, TransientFields, _DefaultFieldsResolver, _Traits>( | ||
| Object.keys(this._defaultTransientFields), | ||
| { | ||
| ...options, | ||
| defaultFields: { ...this._defaultTransientFields, ...options.defaultFields }, | ||
| }, | ||
| ); | ||
| } | ||
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| withTransientFields<NewTransientFields extends Record<string, unknown>>( | ||
| defaultTransientFields: NewTransientFields, | ||
| ): DefineTypeFactoryInterface<Type, Merge<TransientFields, NewTransientFields>> { | ||
| // eslint-disable-next-line @typescript-eslint/no-explicit-any | ||
| return new DefineTypeFactory({ ...this._defaultTransientFields, ...defaultTransientFields }) as any; | ||
| } | ||
| } | ||
| export const defineTypeFactory = new DefineTypeFactory({}) as unknown as DefineTypeFactoryInterfaceRequired<{}, {}>; |
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This is meta programming :)
mizdra
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Type: Change
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This is miscellaneous improvements for #75.