import type {If} from '../if.d.ts'; import type {IsAny} from '../is-any.d.ts'; import type {IsNever} from '../is-never.d.ts'; import type {Primitive} from '../primitive.d.ts'; /** Matches any primitive, `void`, `Date`, or `RegExp` value. */ export type BuiltIns = Primitive | void | Date | RegExp; /** Matches non-recursive types. */ export type NonRecursiveType = BuiltIns | Function | (new (...arguments_: any[]) => unknown); /** Returns a boolean for whether the two given types extends the base type. */ export type IsBothExtends = FirstType extends BaseType ? SecondType extends BaseType ? true : false : false; /** Test if the given function has multiple call signatures. Needed to handle the case of a single call signature with properties. Multiple call signatures cannot currently be supported due to a TypeScript limitation. @see https://github.com/microsoft/TypeScript/issues/29732 */ export type HasMultipleCallSignatures unknown> = T extends {(...arguments_: infer A): unknown; (...arguments_: infer B): unknown} ? B extends A ? A extends B ? false : true : true : false; /** Returns a boolean for whether the given `boolean` is not `false`. */ export type IsNotFalse = [T] extends [false] ? false : true; /** Returns a boolean for whether the given type is primitive value or primitive type. @example ``` IsPrimitive<'string'> //=> true IsPrimitive //=> true IsPrimitive //=> false ``` */ export type IsPrimitive = [T] extends [Primitive] ? true : false; /** Returns a boolean for whether A is false. @example ``` Not; //=> false Not; //=> true ``` */ export type Not = A extends true ? false : A extends false ? true : never; /** An if-else-like type that resolves depending on whether the given type is `any` or `never`. @example ``` // When `T` is a NOT `any` or `never` (like `string`) => Returns `IfNotAnyOrNever` branch type A = IfNotAnyOrNever; //=> 'VALID' // When `T` is `any` => Returns `IfAny` branch type B = IfNotAnyOrNever; //=> 'IS_ANY' // When `T` is `never` => Returns `IfNever` branch type C = IfNotAnyOrNever; //=> 'IS_NEVER' ``` */ export type IfNotAnyOrNever = If, IfAny, If, IfNever, IfNotAnyOrNever>>; /** Returns a boolean for whether the given type is `any` or `never`. This type can be better to use than {@link IfNotAnyOrNever `IfNotAnyOrNever`} in recursive types because it does not evaluate any branches. @example ``` // When `T` is a NOT `any` or `never` (like `string`) => Returns `false` type A = IsAnyOrNever; //=> false // When `T` is `any` => Returns `true` type B = IsAnyOrNever; //=> true // When `T` is `never` => Returns `true` type C = IsAnyOrNever; //=> true ``` */ export type IsAnyOrNever = IsNotFalse | IsNever>; /** Indicates the value of `exactOptionalPropertyTypes` compiler option. */ export type IsExactOptionalPropertyTypesEnabled = [(string | undefined)?] extends [string?] ? false : true; export {};