diff --git a/src/compiler/preprocess/replace_in_code.js b/src/compiler/preprocess/replace_in_code.js
index c7221ccf08..c5f65f4afd 100644
--- a/src/compiler/preprocess/replace_in_code.js
+++ b/src/compiler/preprocess/replace_in_code.js
@@ -7,12 +7,12 @@ import { MappedCode } from '../utils/mapped_code';
  * @returns {Source}
  */
 export function slice_source(code_slice, offset, { file_basename, filename, get_location }) {
-    return {
-        source: code_slice,
-        get_location: (index) => get_location(index + offset),
-        file_basename,
-        filename
-    };
+	return {
+		source: code_slice,
+		get_location: (index) => get_location(index + offset),
+		file_basename,
+		filename
+	};
 }
 
 /**
@@ -21,20 +21,21 @@ export function slice_source(code_slice, offset, { file_basename, filename, get_
  * @param {string} source
  */
 function calculate_replacements(re, get_replacement, source) {
-
- /**
-  * @type {Array<Promise<Replacement>>}
- */
-    const replacements = [];
-    source.replace(re, (...match) => {
-        replacements.push(get_replacement(...match).then((replacement) => {
-            const matched_string = match[0];
-            const offset = match[match.length - 2];
-            return { offset, length: matched_string.length, replacement };
-        }));
-        return '';
-    });
-    return Promise.all(replacements);
+	/**
+	 * @type {Array<Promise<Replacement>>}
+	 */
+	const replacements = [];
+	source.replace(re, (...match) => {
+		replacements.push(
+			get_replacement(...match).then((replacement) => {
+				const matched_string = match[0];
+				const offset = match[match.length - 2];
+				return { offset, length: matched_string.length, replacement };
+			})
+		);
+		return '';
+	});
+	return Promise.all(replacements);
 }
 
 /**
@@ -43,15 +44,19 @@ function calculate_replacements(re, get_replacement, source) {
  * @returns {MappedCode}
  */
 function perform_replacements(replacements, source) {
-    const out = new MappedCode();
-    let last_end = 0;
-    for (const { offset, length, replacement } of replacements) {
-        const unchanged_prefix = MappedCode.from_source(slice_source(source.source.slice(last_end, offset), last_end, source));
-        out.concat(unchanged_prefix).concat(replacement);
-        last_end = offset + length;
-    }
-    const unchanged_suffix = MappedCode.from_source(slice_source(source.source.slice(last_end), last_end, source));
-    return out.concat(unchanged_suffix);
+	const out = new MappedCode();
+	let last_end = 0;
+	for (const { offset, length, replacement } of replacements) {
+		const unchanged_prefix = MappedCode.from_source(
+			slice_source(source.source.slice(last_end, offset), last_end, source)
+		);
+		out.concat(unchanged_prefix).concat(replacement);
+		last_end = offset + length;
+	}
+	const unchanged_suffix = MappedCode.from_source(
+		slice_source(source.source.slice(last_end), last_end, source)
+	);
+	return out.concat(unchanged_suffix);
 }
 
 /**
@@ -61,15 +66,12 @@ function perform_replacements(replacements, source) {
  * @returns {Promise<MappedCode>}
  */
 export async function replace_in_code(regex, get_replacement, location) {
-    const replacements = await calculate_replacements(regex, get_replacement, location.source);
-    return perform_replacements(replacements, location);
+	const replacements = await calculate_replacements(regex, get_replacement, location.source);
+	return perform_replacements(replacements, location);
 }
 
-
-
-
 /** @typedef {Object} Replacement
  * @property {number} offset
  * @property {number} length
- * @property {MappedCode} replacement 
- */
\ No newline at end of file
+ * @property {MappedCode} replacement
+ */