refactor: SyntaxError class

Author: alexander-akait

lib/CssLoaderError.js

@@ -0,0 +1,23 @@
+const formatCodeFrame = require("babel-code-frame");
+
+class SyntaxError extends Error {
+  constructor(err) {
+    super(err);
+
+    this.name = this.constructor.name;
+    this.message = err.reason ? err.reason : err.message;
+
+    if (err.line && err.column) {
+      this.message += " (" + err.line + ":" + err.column + ")";
+
+      if (err.source) {
+        this.message +=
+          "\n\n" + formatCodeFrame(err.source, err.line, err.column) + "\n";
+      }
+    }
+
+    Error.captureStackTrace(this, this.constructor);
+  }
+}
+
+module.exports = SyntaxError;

lib/SyntaxError.js

@@ -6,7 +6,7 @@ const loaderUtils = require("loader-utils");
 const postcss = require("postcss");
 const plugin = require("./plugin");
 const getImportPrefix = require("./getImportPrefix");
-const CssLoaderError = require("./CssLoaderError");
+const SyntaxError = require("./SyntaxError");
 
 module.exports = function(content, map) {
   const options = loaderUtils.getOptions(this) || {};
@@ -188,17 +188,6 @@ module.exports = function(content, map) {
     .catch(err => {
       // Todo if (err.file) this.addDependency(err.file)
 
-      cb(
-        err.name === "CssSyntaxError"
-          ? new CssLoaderError(
-              "Syntax Error",
-              err.reason,
-              err.line != null && err.column != null
-                ? { line: err.line, column: err.column }
-                : null,
-              err.input.source
-            )
-          : err
-      );
+      cb(err.name === "CssSyntaxError" ? new SyntaxError(err) : err);
     });
 };