Tyson NPM | npm.io

Tyson

A tool that generates a TypeScript file from your Jison grammar's semantic actions so the TypeScript compiler will check those semantic actions for errors.

Motivation

TypeScript does not examine .jison files, so any errors in your semantic action code will not be caught by the compiler. Tyson generates a TypeScript file containing your semantic action code, so TypeScript can check your semantic actions for errors.

Usage

Tyson provides both a CLI and a Node API.

CLI

npx tyson -- ./grammar.jison ./src/typedict.ts --out ./src/generated/semanticActions.generated.ts

For more information, please refer to the CLI docs.

Node API

npm install --save tyson

import { generateTypeScriptFile } from "tyson";

generateTypeScriptFile({
    pathToBnfGrammarFile: /* ... */,
    pathToTypeDictFile: /* ... */,
    pathToOutputFile: /* ... */,
});

For more information, please refer to the Node API docs.

Docs

All documentation is located in the docs directory.

We recommend that you start by reading the General docs. After that, if you want additional information about the CLI or Node API, you can refer to the CLI docs or Node API docs, respectively.