hkt-toolbelt/digit-list/from-hex.d.ts

Functional and composable type utilities

import { Kind, Type, DigitList } from '..';
/**
 * `_$fromHex` is a type-level function that takes in a list of hex digits
 * `T`, and returns a list of decimal digits. The hex digits are represented
 * as individual digit lists between ["0"] and ["1", "5"].
 *
 * @template T - The list of hex digits.
 *
 * @example
 * ```ts
 * import { DigitList } from "hkt-toolbelt";
 *
 * type Result = DigitList._$fromHex<[["7"], ["1", "1"]]>; // ["1", "2", "3"]
 * ```
 */
export type _$fromHex<T extends DigitList.DigitList[], 
/**
 * The unit value of the current place. Multiplies by 16 on every iteration.
 */
PLACE_MUL extends DigitList.DigitList = ['1'], 
/**
 * The current sum of places that have been processed so far.
 */
SUM extends DigitList.DigitList = ['0'], 
/**
 * The next place value, multiplied by 16.
 */
NEXT_PLACE_MUL extends DigitList.DigitList = DigitList._$multiply<PLACE_MUL, [
    '1',
    '6'
]>> = T extends [
    ...infer Init extends DigitList.DigitList[],
    infer Last extends DigitList.DigitList
] ? _$fromHex<Init, NEXT_PLACE_MUL, DigitList._$add<SUM, DigitList._$multiply<PLACE_MUL, Last>>> : SUM;
/**
 * `_$fromHex` is a type-level function that takes in a list of hex digits
 * `T`, and returns a list of decimal digits. The hex digits are represented
 * as individual digit lists between ["0"] and ["1", "5"].
 *
 * @template T - The list of hex digits.
 *
 * @example
 * ```ts
 * import { DigitList } from "hkt-toolbelt";
 *
 * type Result = $<DigitList.FromHex, [["7"], ["1", "1"]]>; // ["1", "2", "3"]
 * ```
 */
export interface FromHex extends Kind.Kind {
    f(x: Type._$cast<this[Kind._], DigitList.DigitList[]>): _$fromHex<typeof x>;
}