@thi.ng/pointfree/ops.d.ts

Pointfree functional composition / Forth style stack execution engine

import type { Fn, Fn2 } from "@thi.ng/api";
import type { StackContext } from "./api.js";
/**
 * Higher order word. Replaces TOS of d-stack with result of given op.
 *
 * Stack effect: `( x -- y )`
 *
 * @param op -
 */
export declare const defOp1: (op: Fn<any, any>) => (ctx: StackContext) => StackContext;
/**
 * Higher order word. Takes 2 values from d-stack and writes back result
 * from given op. The arg order is (TOS, TOS-1)
 *
 * Stack effect: `( a b -- c )`
 *
 * @param op -
 */
export declare const defOp2: (op: Fn2<any, any, any>) => (ctx: StackContext) => StackContext;
/**
 * Similar to {@link map2}, but for array operators. Either `a` or `b` can be a
 * non-array value, but not both. Creates new array of result values.
 * The result will have the same length as the shortest arg (if `a` and
 * `b` have different lengths).
 *
 * - `( a b -- a )`, if `a` is an array
 * - `( a b -- b )`, if `a` is not an array
 *
 * @param f -
 */
export declare const defOp2v: (f: Fn2<any, any, any>) => (ctx: StackContext) => StackContext;
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