hunk.code_window:   expect(warning.endColumn).toBe(4)
   })
   it('gets range from word', () => {
     let root = parse('a b{}')
     let warning = new Warning('text', { node: root.first, word: 'b' })
     expect(warning.line).toBe(1)
     expect(warning.column).toBe(3)
  
hunk.labels: keep keep add keep keep keep keep keep
hunk.after_edit: it('gets range from node without end', () => {
     let root = parse('a{}')
     root.first!.source!.end = undefined
     let warning = new Warning('text', { node: root.first })
     expect(warning.line).toBe(1)
     expect(warning.column).toBe(1)
     expect(warning.endLine).toBe(1)
     expect(warning.endColumn).toBe(2)
   })
  
hunk.file_path: test/warning.test.ts
hunk.type: add
file: 'use strict'
  
  let pico = require('picocolors')
  
  let terminalHighlight = require('./terminal-highlight')
  
  class CssSyntaxError extends Error {
    constructor(message, line, column, source, file, plugin) {
      super(message)
      this.name = 'CssSyntaxError'
      this.reason = message
  
      if (file) {
        this.file = file
      }
      if (source) {
        this.source = source
      }
      if (plugin) {
        this.plugin = plugin
      }
      if (typeof line !== 'undefined' && typeof column !== 'undefined') {
        if (typeof line === 'number') {
          this.line = line
          this.column = column
        } else {
          this.line = line.line
          this.column = line.column
          this.endLine = column.line
          this.endColumn = column.column
        }
      }
  
      this.setMessage()
  
      if (Error.captureStackTrace) {
        Error.captureStackTrace(this, CssSyntaxError)
      }
    }
  
    setMessage() {
      this.message = this.plugin ? this.plugin + ': ' : ''
      this.message += this.file ? this.file : '<css input>'
      if (typeof this.line !== 'undefined') {
        this.message += ':' + this.line + ':' + this.column
      }
      this.message += ': ' + this.reason
    }
  
    showSourceCode(color) {
      if (!this.source) return ''
  
      let css = this.source
      if (color == null) color = pico.isColorSupported
      if (terminalHighlight) {
        if (color) css = terminalHighlight(css)
      }
  
      let lines = css.split(/\r?\n/)
      let start = Math.max(this.line - 3, 0)
      let end = Math.min(this.line + 2, lines.length)
  
      let maxWidth = String(end).length
  
      let mark, aside
      if (color) {
        let { bold, red, gray } = pico.createColors(true)
        mark = text => bold(red(text))
        aside = text => gray(text)
      } else {
        mark = aside = str => str
      }
  
      return lines
        .slice(start, end)
        .map((line, index) => {
          let number = start + 1 + index
          let gutter = ' ' + (' ' + number).slice(-maxWidth) + ' | '
          if (number === this.line) {
            let spacing =
              aside(gutter.replace(/\d/g, ' ')) +
              line.slice(0, this.column - 1).replace(/[^\t]/g, ' ')
            return mark('>') + aside(gutter) + line + '\n ' + spacing + mark('^')
          }
          return ' ' + aside(gutter) + line
        })
        .join('\n')
    }
  
    toString() {
      let code = this.showSourceCode()
      if (code) {
        code = '\n\n' + code + '\n'
      }
      return this.name + ': ' + this.message + code
    }
  }
  
  module.exports = CssSyntaxError
  CssSyntaxError.default = CssSyntaxError
  