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@excalidraw/math

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Excalidraw math functions

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/// <reference types="react" /> export type Mutable<T> = { -readonly [P in keyof T]: T[P]; }; export type ValueOf<T> = T[keyof T]; export type Merge<M, N> = Omit<M, keyof N> & N; /** utility type to assert that the second type is a subtype of the first type. * Returns the subtype. */ export type SubtypeOf<Supertype, Subtype extends Supertype> = Subtype; export type ResolutionType<T extends (...args: any) => any> = T extends (...args: any) => Promise<infer R> ? R : any; export type MarkOptional<T, K extends keyof T> = Omit<T, K> & Partial<Pick<T, K>>; export type MarkRequired<T, RK extends keyof T> = Exclude<T, RK> & Required<Pick<T, RK>>; export type MarkNonNullable<T, K extends keyof T> = { [P in K]-?: P extends K ? NonNullable<T[P]> : T[P]; } & { [P in keyof T]: T[P]; }; export type NonOptional<T> = Exclude<T, undefined>; export type SignatureType<T> = T extends (...args: infer R) => any ? R : never; export type CallableType<T extends (...args: any[]) => any> = (...args: SignatureType<T>) => ReturnType<T>; export type ForwardRef<T, P = any> = Parameters<CallableType<React.ForwardRefRenderFunction<T, P>>>[1]; export type ExtractSetType<T extends Set<any>> = T extends Set<infer U> ? U : never; export type SameType<T, U> = T extends U ? (U extends T ? true : false) : false; export type Assert<T extends true> = T; export type NestedKeyOf<T, K = keyof T> = K extends keyof T & (string | number) ? `${K}` | (T[K] extends object ? `${K}.${NestedKeyOf<T[K]>}` : never) : never; export type SetLike<T> = Set<T> | T[]; export type ReadonlySetLike<T> = ReadonlySet<T> | readonly T[]; export type MakeBrand<T extends string> = { [K in `~brand~${T}`]: T; }; /** Maybe just promise or already fulfilled one! */ export type MaybePromise<T> = T | Promise<T>; export type AllPossibleKeys<T> = T extends any ? keyof T : never; /** Strip all the methods or functions from a type */ export type DTO<T> = { [K in keyof T as T[K] extends Function ? never : K]: T[K]; }; export type MapEntry<M extends Map<any, any>> = M extends Map<infer K, infer V> ? [K, V] : never;