Integrate Input#document

Author: romainmenke

lib/parse.js

@@ -8,9 +8,13 @@ const { parseJs } = require('./parseJs');
 module.exports = function parse(css, opts) {
 	let inputCode = typeof css === 'string' ? css : css.toString();
 
+	let options = opts ?? {};
+
+	options.document = inputCode;
+
 	let document = new postcss.Document({
 		source: {
-			input: new postcss.Input(inputCode, opts),
+			input: new postcss.Input(inputCode, options),
 			start: { offset: 0, line: 1, column: 1 },
 		},
 	});
@@ -27,7 +31,7 @@ module.exports = function parse(css, opts) {
 		/** @type {postcss.Root} */
 		let parsedNode;
 
-		let input = new postcss.Input(node.css, opts);
+		let input = new postcss.Input(node.css, options);
 
 		let interpolationsRanges = node.interpolationRanges.map((range) => {
 			return {