refactor: Use declarations style for functions.

src/storage/conversion/ConversionUtil.ts

@@ -18,8 +18,8 @@ import { NotImplementedHttpError } from '../../util/errors/NotImplementedHttpErr
  *
  * @returns The weighted and filtered list of matching types.
  */
-export const matchingMediaTypes = (preferredTypes: ValuePreferences = {}, availableTypes: ValuePreferences = {}):
-string[] => {
+export function matchingMediaTypes(preferredTypes: ValuePreferences = {}, availableTypes: ValuePreferences = {}):
+string[] {
   // No preference means anything is acceptable
   const preferred = { ...preferredTypes };
   if (Object.keys(preferredTypes).length === 0) {
@@ -53,7 +53,7 @@ string[] => {
     .filter(([ , weight ]): boolean => weight !== 0)
     .sort(([ , weightA ], [ , weightB ]): number => weightB - weightA)
     .map(([ type ]): string => type);
-};
+}
 
 /**
  * Checks if the given two media types/ranges match each other.
@@ -63,7 +63,7 @@ string[] => {
  *
  * @returns True if the media type patterns can match each other.
  */
-export const matchesMediaType = (mediaA: string, mediaB: string): boolean => {
+export function matchesMediaType(mediaA: string, mediaB: string): boolean {
   if (mediaA === mediaB) {
     return true;
   }
@@ -80,7 +80,7 @@ export const matchesMediaType = (mediaA: string, mediaB: string): boolean => {
     return true;
   }
   return subTypeA === subTypeB;
-};
+}
 
 /**
  * Determines whether the given conversion request is supported,
@@ -94,10 +94,10 @@ export const matchesMediaType = (mediaA: string, mediaB: string): boolean => {
  * @param convertorIn - Media types that can be parsed by the converter.
  * @param convertorOut - Media types that can be produced by the converter.
  */
-export const supportsMediaTypeConversion = (
+export function supportsMediaTypeConversion(
   inputType = 'unknown', outputTypes: ValuePreferences = {},
   convertorIn: ValuePreferences = {}, convertorOut: ValuePreferences = {},
-): void => {
+): void {
   if (!Object.keys(convertorIn).some((type): boolean => matchesMediaType(inputType, type)) ||
      matchingMediaTypes(outputTypes, convertorOut).length === 0) {
     throw new NotImplementedHttpError(
@@ -105,4 +105,4 @@ export const supportsMediaTypeConversion = (
       }, only from ${Object.keys(convertorIn)} to ${Object.keys(convertorOut)}.`,
     );
   }
-};
+}

src/storage/mapping/MapperUtil.ts

@@ -14,8 +14,9 @@ const logger = getLoggerFor('MapperUtil');
  *
  * @returns Absolute path of the file.
  */
-export const getAbsolutePath = (rootFilepath: string, path: string, identifier = ''): string =>
-  joinFilePath(rootFilepath, path, identifier);
+export function getAbsolutePath(rootFilepath: string, path: string, identifier = ''): string {
+  return joinFilePath(rootFilepath, path, identifier);
+}
 
 /**
  * Strips the baseRequestURI from the identifier and checks if the stripped base URI matches the store's one.
@@ -27,13 +28,13 @@ export const getAbsolutePath = (rootFilepath: string, path: string, identifier =
  *
  * @returns A string representing the relative path.
  */
-export const getRelativePath = (baseRequestURI: string, identifier: ResourceIdentifier): string => {
+export function getRelativePath(baseRequestURI: string, identifier: ResourceIdentifier): string {
   if (!identifier.path.startsWith(baseRequestURI)) {
     logger.warn(`The URL ${identifier.path} is outside of the scope ${baseRequestURI}`);
     throw new NotFoundHttpError();
   }
   return decodeUriPathComponents(identifier.path.slice(baseRequestURI.length));
-};
+}
 
 /**
  * Check if the given relative path is valid.
@@ -44,7 +45,7 @@ export const getRelativePath = (baseRequestURI: string, identifier: ResourceIden
  * @param path - A relative path, as generated by {@link getRelativePath}.
  * @param identifier - A resource identifier.
  */
-export const validateRelativePath = (path: string, identifier: ResourceIdentifier): void => {
+export function validateRelativePath(path: string, identifier: ResourceIdentifier): void {
   if (!path.startsWith('/')) {
     logger.warn(`URL ${identifier.path} needs a / after the base`);
     throw new BadRequestHttpError('URL needs a / after the base');
@@ -54,4 +55,4 @@ export const validateRelativePath = (path: string, identifier: ResourceIdentifie
     logger.warn(`Disallowed /.. segment in URL ${identifier.path}.`);
     throw new BadRequestHttpError('Disallowed /.. segment in URL');
   }
-};
+}