diff --git a/lib/util/edit.ts b/lib/util/edit.ts
index ad26a30..a2fd7e5 100644
--- a/lib/util/edit.ts
+++ b/lib/util/edit.ts
@@ -12,7 +12,12 @@ import { MemoryFileService } from './MemoryFileService.js';
 import { findFileUsage } from './findFileUsage.js';
 import { parseFile } from './parseFile.js';
 import { Output } from './Output.js';
-import * as Export from './export.js';
+import {
+  WholeExportDeclarationWithFile,
+  isWholeExportDeclarationWithFile,
+  isNamedExport,
+  isWholeExportDeclaration,
+} from './export.js';
 
 const transform = (
   source: string,
@@ -93,7 +98,7 @@ const createLanguageService = ({
   projectRoot: string;
   fileService: FileService;
 }) => {
-  return ts.createLanguageService({
+  const languageService = ts.createLanguageService({
     getCompilationSettings() {
       return options;
     },
@@ -119,6 +124,8 @@ const createLanguageService = ({
       return fileService.get(name);
     },
   });
+
+  return languageService;
 };
 
 const updateExportDeclaration = (code: string, unused: string[]) => {
@@ -183,21 +190,41 @@ const getSpecifierPosition = (exportDeclaration: string) => {
 /**
  * Retrieves the names of the exports from a whole export declaration.
  * For each whole export declaration, it will recursively get the names of the exports from the file it points to.
- *
- * No need to memoize this function because `parseFile` already memoizes the file parsing.
  */
 const deeplyGetExportNames = ({
   item,
   files,
   fileNames,
   options,
-  filesAlreadyVisited = new Set<string>(),
 }: {
-  item: Export.WholeExportDeclaration.FileFound;
+  item: WholeExportDeclarationWithFile;
+  files: Map<string, string>;
+  fileNames: Set<string>;
+  options: ts.CompilerOptions;
+}): string[] => {
+  const filesAlreadyVisited = new Set<string>();
+
+  return innerDeeplyGetExportNames({
+    item,
+    files,
+    fileNames,
+    options,
+    filesAlreadyVisited,
+  });
+};
+
+const innerDeeplyGetExportNames = ({
+  item,
+  files,
+  fileNames,
+  options,
+  filesAlreadyVisited,
+}: {
+  item: WholeExportDeclarationWithFile;
   files: Map<string, string>;
   fileNames: Set<string>;
   options: ts.CompilerOptions;
-  filesAlreadyVisited?: Set<string>;
+  filesAlreadyVisited: Set<string>;
 }): string[] => {
   if (filesAlreadyVisited.has(item.file)) {
     return [];
@@ -212,12 +239,10 @@ const deeplyGetExportNames = ({
 
   const deepExportNames = parsed.exports
     .filter(
-      (v) =>
-        Export.isWholeExportDeclaration(v) &&
-        Export.WholeExportDeclaration.isFileFound(v),
+      (v) => isWholeExportDeclaration(v) && isWholeExportDeclarationWithFile(v),
     )
     .flatMap((v) =>
-      deeplyGetExportNames({
+      innerDeeplyGetExportNames({
         item: v,
         files,
         fileNames,
@@ -227,7 +252,7 @@ const deeplyGetExportNames = ({
     );
 
   return parsed.exports
-    .filter(Export.isNamedExport)
+    .filter(isNamedExport)
     .flatMap((v) => v.name)
     .concat(deepExportNames);
 };
@@ -475,7 +500,7 @@ const processFile = ({
             break;
           }
           case 'whole': {
-            if (!Export.WholeExportDeclaration.isFileFound(item)) {
+            if (!isWholeExportDeclarationWithFile(item)) {
               // whole export is directed towards a file that is not in the project
               break;
             }
@@ -583,11 +608,13 @@ export {};\n`,
   }
 
   if (changes.length === 0) {
-    return {
+    const result = {
       operation: 'edit' as const,
       content: files.get(targetFile) || '',
       removedExports: logs,
     };
+
+    return result;
   }
 
   let content = applyTextChanges(files.get(targetFile) || '', changes);
diff --git a/lib/util/export.ts b/lib/util/export.ts
index 1cb5b73..f1d3253 100644
--- a/lib/util/export.ts
+++ b/lib/util/export.ts
@@ -1,10 +1,181 @@
 import ts from 'typescript';
 
-import { NamedExport } from './export/namedExport.js';
-import { WholeExportDeclaration } from './export/wholeExportDeclaration.js';
+export type ClassDeclaration = {
+  kind: ts.SyntaxKind.ClassDeclaration;
+  name: string;
+  change: {
+    code: string;
+    isUnnamedDefaultExport?: boolean;
+    span: {
+      start: number;
+      length: number;
+    };
+  };
+  skip: boolean;
+  start: number;
+};
 
-export * as NamedExport from './export/namedExport.js';
-export * as WholeExportDeclaration from './export/wholeExportDeclaration.js';
+export type EnumDeclaration = {
+  kind: ts.SyntaxKind.EnumDeclaration;
+  name: string;
+  change: {
+    code: string;
+    span: {
+      start: number;
+      length: number;
+    };
+  };
+  skip: boolean;
+  start: number;
+};
+
+export type ExportAssignment = {
+  kind: ts.SyntaxKind.ExportAssignment;
+  name: 'default';
+  change: {
+    code: string;
+    span: {
+      start: number;
+      length: number;
+    };
+  };
+  skip: boolean;
+  start: number;
+};
+
+export type FunctionDeclaration = {
+  kind: ts.SyntaxKind.FunctionDeclaration;
+  name: string;
+  change: {
+    code: string;
+    isUnnamedDefaultExport?: boolean;
+    span: {
+      start: number;
+      length: number;
+    };
+  };
+  skip: boolean;
+  start: number;
+};
+
+export type InterfaceDeclaration = {
+  kind: ts.SyntaxKind.InterfaceDeclaration;
+  name: string;
+  change: {
+    code: string;
+    span: {
+      start: number;
+      length: number;
+    };
+  };
+  skip: boolean;
+  start: number;
+};
+
+export type NameExportDeclaration = {
+  kind: ts.SyntaxKind.ExportDeclaration;
+  type: 'named';
+  name: string[];
+  skip: boolean;
+  change: {
+    code: string;
+    span: {
+      start: number;
+      length: number;
+    };
+  };
+  start: number;
+};
+
+export type NamespaceExportDeclaration = {
+  kind: ts.SyntaxKind.ExportDeclaration;
+  type: 'namespace';
+  name: string;
+  start: number;
+  change: {
+    code: string;
+    span: {
+      start: number;
+      length: number;
+    };
+  };
+};
+
+export type TypeAliasDeclaration = {
+  kind: ts.SyntaxKind.TypeAliasDeclaration;
+  name: string;
+  change: {
+    code: string;
+    span: {
+      start: number;
+      length: number;
+    };
+  };
+  skip: boolean;
+  start: number;
+};
+
+export type VariableStatement = {
+  kind: ts.SyntaxKind.VariableStatement;
+  name: string[];
+  change: {
+    code: string;
+    span: {
+      start: number;
+      length: number;
+    };
+  };
+  skip: boolean;
+  start: number;
+};
+
+export type NamedExport =
+  | ClassDeclaration
+  | EnumDeclaration
+  | ExportAssignment
+  | FunctionDeclaration
+  | InterfaceDeclaration
+  | NameExportDeclaration
+  | NamespaceExportDeclaration
+  | TypeAliasDeclaration
+  | VariableStatement;
+
+type WholeExportDeclarationBase = {
+  kind: ts.SyntaxKind.ExportDeclaration;
+  type: 'whole';
+  specifier: string;
+  start: number;
+  change: {
+    code: string;
+    span: {
+      start: number;
+      length: number;
+    };
+  };
+};
+
+/**
+ * Whole export when the file is found within the destFiles
+ */
+export type WholeExportDeclarationWithFile = WholeExportDeclarationBase & {
+  file: string;
+};
+
+/**
+ * Whole export when the file is not found within the destFiles, i.e. the file is not part of the project
+ */
+export type WholeExportDeclarationWithoutFile = WholeExportDeclarationBase & {
+  file: null;
+};
+
+export type WholeExportDeclaration =
+  | WholeExportDeclarationWithFile
+  | WholeExportDeclarationWithoutFile;
+
+export const isWholeExportDeclarationWithFile = (
+  exportDeclaration: WholeExportDeclaration,
+): exportDeclaration is WholeExportDeclarationWithFile =>
+  exportDeclaration.file !== null;
 
 export type Export = NamedExport | WholeExportDeclaration;
 
diff --git a/lib/util/export/namedExport.ts b/lib/util/export/namedExport.ts
deleted file mode 100644
index 356447c..0000000
--- a/lib/util/export/namedExport.ts
+++ /dev/null
@@ -1,141 +0,0 @@
-import ts from 'typescript';
-
-export type ClassDeclaration = {
-  kind: ts.SyntaxKind.ClassDeclaration;
-  name: string;
-  change: {
-    code: string;
-    isUnnamedDefaultExport?: boolean;
-    span: {
-      start: number;
-      length: number;
-    };
-  };
-  skip: boolean;
-  start: number;
-};
-
-export type EnumDeclaration = {
-  kind: ts.SyntaxKind.EnumDeclaration;
-  name: string;
-  change: {
-    code: string;
-    span: {
-      start: number;
-      length: number;
-    };
-  };
-  skip: boolean;
-  start: number;
-};
-
-export type ExportAssignment = {
-  kind: ts.SyntaxKind.ExportAssignment;
-  name: 'default';
-  change: {
-    code: string;
-    span: {
-      start: number;
-      length: number;
-    };
-  };
-  skip: boolean;
-  start: number;
-};
-
-export type FunctionDeclaration = {
-  kind: ts.SyntaxKind.FunctionDeclaration;
-  name: string;
-  change: {
-    code: string;
-    isUnnamedDefaultExport?: boolean;
-    span: {
-      start: number;
-      length: number;
-    };
-  };
-  skip: boolean;
-  start: number;
-};
-
-export type InterfaceDeclaration = {
-  kind: ts.SyntaxKind.InterfaceDeclaration;
-  name: string;
-  change: {
-    code: string;
-    span: {
-      start: number;
-      length: number;
-    };
-  };
-  skip: boolean;
-  start: number;
-};
-
-export type NameExportDeclaration = {
-  kind: ts.SyntaxKind.ExportDeclaration;
-  type: 'named';
-  name: string[];
-  skip: boolean;
-  change: {
-    code: string;
-    span: {
-      start: number;
-      length: number;
-    };
-  };
-  start: number;
-};
-
-export type NamespaceExportDeclaration = {
-  kind: ts.SyntaxKind.ExportDeclaration;
-  type: 'namespace';
-  name: string;
-  start: number;
-  change: {
-    code: string;
-    span: {
-      start: number;
-      length: number;
-    };
-  };
-};
-
-export type TypeAliasDeclaration = {
-  kind: ts.SyntaxKind.TypeAliasDeclaration;
-  name: string;
-  change: {
-    code: string;
-    span: {
-      start: number;
-      length: number;
-    };
-  };
-  skip: boolean;
-  start: number;
-};
-
-export type VariableStatement = {
-  kind: ts.SyntaxKind.VariableStatement;
-  name: string[];
-  change: {
-    code: string;
-    span: {
-      start: number;
-      length: number;
-    };
-  };
-  skip: boolean;
-  start: number;
-};
-
-export type NamedExport =
-  | ClassDeclaration
-  | EnumDeclaration
-  | ExportAssignment
-  | FunctionDeclaration
-  | InterfaceDeclaration
-  | NameExportDeclaration
-  | NamespaceExportDeclaration
-  | TypeAliasDeclaration
-  | VariableStatement;
diff --git a/lib/util/export/wholeExportDeclaration.ts b/lib/util/export/wholeExportDeclaration.ts
deleted file mode 100644
index 13794f2..0000000
--- a/lib/util/export/wholeExportDeclaration.ts
+++ /dev/null
@@ -1,43 +0,0 @@
-import ts from 'typescript';
-
-/**
- * Whole export when the file is found within the destFiles
- */
-export type FileFound = {
-  kind: ts.SyntaxKind.ExportDeclaration;
-  type: 'whole';
-  file: string;
-  specifier: string;
-  start: number;
-  change: {
-    code: string;
-    span: {
-      start: number;
-      length: number;
-    };
-  };
-};
-
-/**
- * Whole export when the file is not found within the destFiles, i.e. the file is not part of the project
- */
-export type FileNotFound = {
-  kind: ts.SyntaxKind.ExportDeclaration;
-  type: 'whole';
-  file: null;
-  specifier: string;
-  start: number;
-  change: {
-    code: string;
-    span: {
-      start: number;
-      length: number;
-    };
-  };
-};
-
-export type WholeExportDeclaration = FileFound | FileNotFound;
-
-export const isFileFound = (
-  exportDeclaration: WholeExportDeclaration,
-): exportDeclaration is FileFound => exportDeclaration.file !== null;