@mpxjs/webpack-plugin/lib/wxss/Warning.js

mpx compile core

module.exports = class Warning extends Error {
  constructor (warning) {
    super(warning)

    const { text, line, column } = warning

    this.name = 'Warning'

    // Based on https://github.com/postcss/postcss/blob/master/lib/warning.es6#L74
    // We don't need `plugin` properties.
    this.message = `${this.name}\n\n`

    if (typeof line !== 'undefined') {
      this.message += `(${line}:${column}) `
    }

    this.message += `${text}`

    // We don't need stack https://github.com/postcss/postcss/blob/master/docs/guidelines/runner.md#31-dont-show-js-stack-for-csssyntaxerror
    this.stack = false
  }
}