export default class CssParseError extends Error { readonly reason: string; readonly filename?: string; readonly line: number; readonly column: number; readonly source: string; constructor( filename: string, msg: string, lineno: number, column: number, css: string, ) { super(`${filename}:${lineno}:${column}: ${msg}`); this.reason = msg; this.filename = filename; this.line = lineno; this.column = column; this.source = css; } }