README.md

Code contract for Deno

Tiny code contract programming utility for Deno.

Usage

Use codeContract function to bind the contract.

import { codeContract } from "./code-contracts.ts";

const func = (lhs: number, rhs: number) => (lhs + rhs);
const contracted = codeContract(func, {
  pre: (lhs: number, rhs: number) => 0 < lhs && 0 < rhs,
  post: (result: number) => (result < 100),
});
contracted(10, 20); // OK
contracted(99, 1); // NG(throw Error)

functions

codeContract

Return contracted function.

• fn - target function
• contract - contract functions container
  • pre - pre condition function
  • post - post condition function
  • invariant - invariant condition function

disableContractCheck

Disable contract check.

enableContractCheck

Enable contract check.

CHANGELOG

CHANGELOG

License

MIT