@import must be at beginning

fixes faceyspacey#72
http://stackoverflow.com/a/14676665/1458162

Author: sokra

ExtractedModule.js

@@ -16,6 +16,11 @@ function ExtractedModule(identifier, originalModule, source, sourceMap, addtitio
 }
 module.exports = ExtractedModule;
 
+ExtractedModule.prototype.getOrder = function() {
+	// http://stackoverflow.com/a/14676665/1458162
+	return /^@import url/.test(this._source) ? 0 : 1;
+};
+
 ExtractedModule.prototype.addChunk = function(chunk) {
 	var idx = this.chunks.indexOf(chunk);
 	if(idx < 0)

index.js

@@ -82,6 +82,10 @@ function isInvalidOrder(a, b) {
 }
 
 function getOrder(a, b) {
+	var aOrder = a.getOrder();
+	var bOrder = b.getOrder();
+	if(aOrder < bOrder) return -1;
+	if(aOrder > bOrder) return 1;
 	var aIndex = a.getOriginalModule().index2;
 	var bIndex = b.getOriginalModule().index2;
 	if(aIndex < bIndex) return -1;