"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.getFunctionRing = exports.getTupleRing = exports.negate = exports.tuple = void 0; /** * The `Ring` class is for types that support addition, multiplication, and subtraction operations. * * Instances must satisfy the following law in addition to the `Semiring` laws: * * - Additive inverse: `a - a <-> (zero - a) + a <-> zero` * * Adapted from https://github.com/purescript/purescript-prelude/blob/master/src/Data/Ring.purs * * @since 2.0.0 */ var function_1 = require("./function"); // ------------------------------------------------------------------------------------- // combinators // ------------------------------------------------------------------------------------- /** * Given a tuple of `Ring`s returns a `Ring` for the tuple * * @example * import { tuple } from 'fp-ts/Ring' * import * as N from 'fp-ts/number' * * const R = tuple(N.Field, N.Field, N.Field) * assert.deepStrictEqual(R.add([1, 2, 3], [4, 5, 6]), [5, 7, 9]) * assert.deepStrictEqual(R.mul([1, 2, 3], [4, 5, 6]), [4, 10, 18]) * assert.deepStrictEqual(R.one, [1, 1, 1]) * assert.deepStrictEqual(R.sub([1, 2, 3], [4, 5, 6]), [-3, -3, -3]) * assert.deepStrictEqual(R.zero, [0, 0, 0]) * * @since 2.10.0 */ var tuple = function () { var rings = []; for (var _i = 0; _i < arguments.length; _i++) { rings[_i] = arguments[_i]; } return ({ add: function (x, y) { return rings.map(function (R, i) { return R.add(x[i], y[i]); }); }, zero: rings.map(function (R) { return R.zero; }), mul: function (x, y) { return rings.map(function (R, i) { return R.mul(x[i], y[i]); }); }, one: rings.map(function (R) { return R.one; }), sub: function (x, y) { return rings.map(function (R, i) { return R.sub(x[i], y[i]); }); } }); }; exports.tuple = tuple; // ------------------------------------------------------------------------------------- // utils // ------------------------------------------------------------------------------------- /** * `negate x` can be used as a shorthand for `zero - x` * * @since 2.0.0 */ var negate = function (R) { return function (a) { return R.sub(R.zero, a); }; }; exports.negate = negate; // ------------------------------------------------------------------------------------- // deprecated // ------------------------------------------------------------------------------------- /** * Use [`tuple`](#tuple) instead. * * @category zone of death * @since 2.0.0 * @deprecated */ exports.getTupleRing = exports.tuple; /** * Use [`getRing`](./function.ts.html#getring) instead. * * @category zone of death * @since 2.0.0 * @deprecated */ exports.getFunctionRing = function_1.getRing;