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es-api-check

v0.1.5

Published

Check if js files contains unsupport api useage.

Downloads

21

Readme

es-api-check

es语法检测,由于少部分浏览器对于api支持存在特异性问题,如oppo浏览器 Symbol.iteratorArray.fromArray.fill 的支持问题。babel 等编译工具不会对这些 api 调用进行处理,同时还有可能在编译后出现这些代码。工具会对这些 api 进行检测,并且排除 "symbol" === typeof Symbol.iterator 这类不回报错的语法。

Installation

通过 yarn 安装:

yarn add es-api-check

Usage

目前提供两个 api ,分别是检查错误,和打印错误。

import {esCheck, printError} from "es-api-check";

const code = `a[Symbol.iterator]`;
const customCheck = {
  memberExpression: [{
    object: "Array",
    property: "from"
  }]
};
const errors = esCheck(code, customCheck);
// -> erros: {}
const print = printError(errors);

Interface

esCheck(code, [customCheck])用于检查代码的api是否含有不支持代码,参数code为字符串类型,为需要被检测的代码。第二个参数为可选,作为自定义的检查规则。返回值是一个错误描述数组。

错误描述包含以下几个内容:

  • nodeLocation: 描述错误节点的位置,包含colrow两个属性,分别代表错误出现的列和行。

    • row: 代码行数,number类型。
    • col: 代码列数。
  • errorSentence: 为错误所在语句的代码。

printError(errors)用于打印错误,返回字符串。传入参数errorsesCheck执行所得。

Default check list

目前的默认过滤规则有以下:

Array

  • Array.fill
  • Array.from

Symbol

  • Symbol.iterator