@types/babel-types

What is @types/babel-types?

@types/babel-types provides TypeScript type definitions for the Babel Types library, which is used to manipulate, traverse, and generate AST (Abstract Syntax Tree) nodes. This package is essential for developers working with Babel in a TypeScript environment, as it ensures type safety and better development experience.

What are @types/babel-types's main functionalities?

Creating AST Nodes

This feature allows you to create various AST nodes. In this example, an identifier node named 'myVar' is created.

const t = require('@babel/types');
const identifier = t.identifier('myVar');
console.log(identifier);

Traversing AST Nodes

This feature allows you to traverse through AST nodes. In this example, the type of each node in the AST is logged.

const traverse = require('@babel/traverse').default;
const ast = { /* some AST */ };
traverse(ast, {
  enter(path) {
    console.log(path.node.type);
  }
});

Manipulating AST Nodes

This feature allows you to manipulate AST nodes. In this example, all identifier nodes with the name 'oldName' are renamed to 'newName'.

const t = require('@babel/types');
const traverse = require('@babel/traverse').default;
const ast = { /* some AST */ };
traverse(ast, {
  Identifier(path) {
    if (path.node.name === 'oldName') {
      path.node.name = 'newName';
    }
  }
});

Other packages similar to @types/babel-types

@types/estree

@types/estree provides TypeScript type definitions for the ESTree specification, which is a standard for representing JavaScript programs as an AST. It is similar to @types/babel-types but focuses on the ESTree format.

typescript

The TypeScript compiler itself provides functionalities to work with TypeScript AST. It includes a comprehensive set of APIs for creating, traversing, and manipulating AST nodes, similar to @types/babel-types but specifically for TypeScript.

esprima

Esprima is a high-performance, standard-compliant ECMAScript parser that provides an AST for JavaScript code. While it does not provide TypeScript type definitions, it offers similar functionalities for parsing and working with JavaScript AST.

README

Installation

npm install --save @types/babel-types

Summary

This package contains type definitions for babel-types (https://github.com/babel/babel/tree/master/packages/babel-types).

Details

Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/babel-types.

Additional Details

• Last updated: Tue, 06 Jul 2021 18:05:39 GMT
• Dependencies: none
• Global values: none

Credits

These definitions were written by Troy Gerwien, Sam Baxter, Marvin Hagemeister, Boris Cherny, and ExE Boss.