seafox: A blazing fast 100% spec compliant, self-hosted javascript parser written in Typescript

栏目: IT技术 · 发布时间: 4年前

内容简介:A blazing fast 100% spec compliant, self-hosted javascript parser written in Typescript.Seafox generatesThe

Seafox

A blazing fast 100% spec compliant, self-hosted javascript parser written in Typescript.

Features

  • Conforms to the standard ECMAScript® 2020 (ECMA-262 10th Edition) language specification
  • Support for additional ECMAScript features for Web Browsers
  • Optionally track syntactic node locations
  • Emits an ESTree-compatible abstract syntax tree.
  • No backtracking
  • Low memory usage
  • Very well tested (~32 000 unit tests with full code coverage)
  • Lightweight - ~84 KB minified

Installation

npm install seafox --save-dev

API

Seafox generates AST according to ESTree AST format , and can be used to perform syntactic analysis (parsing) of a JavaScript program, and with ES2015 and later a JavaScript program can be either a script or a module .

The parse method exposed by Seafox takes an optional options object which allows you to specify whether to parse in script mode (the default) or in module mode.

This is the available options:

{
  // Allow parsing using Module as the goal symbol
  module?: boolean;

  // The flag to enable start and end offsets and line/column location information to each node
  loc: false;

  // Disable web compatibility
  disableWebCompat: false;

  // The flag to attach raw property to each literal and identifier node
  raw: false;

  // Enabled directives
  directives: false;

  // The flag to allow return in the global scope
  globalReturn: false;

  // The flag to enable implied strict mode
  impliedStrict: false;

// Enable non-standard parenthesized expression node
  preserveParens: false;
}

Example usage:

import { parseScript, parseModule, parse } from './seafox';

parseScript('({x: [y] = 0} = 1)');

parseModule('({x: [y] = 0} = 1)', { directives: true, raw: true });

parse('({x: [y] = 0} = 1)', { module: true });

parse('({x: [y] = 0} = 1)');

以上就是本文的全部内容,希望本文的内容对大家的学习或者工作能带来一定的帮助,也希望大家多多支持 码农网

查看所有标签

猜你喜欢:

本站部分资源来源于网络,本站转载出于传递更多信息之目的,版权归原作者或者来源机构所有,如转载稿涉及版权问题,请联系我们

赛博空间的奥德赛

赛博空间的奥德赛

(荷兰)约斯·德·穆尔 (Jos de Mul) / 麦永雄 / 广西师范大学出版社 / 2007-2 / 38.00元

本书揭示了数码信息时代的电子传媒与赛博空间为人类历史的发展提供的新的可能性。本书第一部分“通向未来的高速公路”,涉及无线想象、政治技术和极权主义在赛博空间的消解等题旨;第二部分“赛博空间的想象” ,讨论空间文学探索简史、电影和文化的数码化;第三部分”可能的世界” ,关涉世界观的信息化、数码复制时代的世界、数码此在等层面;第四、五部分探讨主页时代的身份、虚拟人类学、虚拟多神论、赛博空间的进化、超人文......一起来看看 《赛博空间的奥德赛》 这本书的介绍吧!

RGB HSV 转换
RGB HSV 转换

RGB HSV 互转工具

HEX CMYK 转换工具
HEX CMYK 转换工具

HEX CMYK 互转工具