From 411f97c6c7085e739d756fffaf3c215f859f1280 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Lichtenth=C3=A4ler?=
 <andre.lichtenthaeler@gmail.com>
Date: Sun, 7 Aug 2022 16:54:17 +0200
Subject: [PATCH] refactor: implicitly return `Parser` instances (#165)

#164
---
 src/combinators/optional.ts | 5 ++---
 src/parsers/failure.ts      | 5 ++---
 src/parsers/lazy.ts         | 5 ++---
 3 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/src/combinators/optional.ts b/src/combinators/optional.ts
index f20c4cf..ab0cf99 100644
--- a/src/combinators/optional.ts
+++ b/src/combinators/optional.ts
@@ -7,8 +7,8 @@ import { updateParserResult } from "../ParserState";
  * @returns
  * @see https://rudus.pages.dev/docs/api/combinators/optional
  */
-export const optional = (parser: Parser): Parser => {
-  return new Parser(currentState => {
+export const optional = (parser: Parser): Parser =>
+  new Parser(currentState => {
     // Try to transform the current state with the given parser.
     const nextState = parser.transformState(currentState);
 
@@ -18,4 +18,3 @@ export const optional = (parser: Parser): Parser => {
     // If the given parser can match return the transformed state.
     return nextState;
   });
-};
diff --git a/src/parsers/failure.ts b/src/parsers/failure.ts
index 4548eda..e43f55c 100644
--- a/src/parsers/failure.ts
+++ b/src/parsers/failure.ts
@@ -6,9 +6,8 @@ import { updateParserError } from "../ParserState";
  * @param errorMessage
  * @returns
  */
-export const failure = (errorMessage: string) => {
-  return new Parser(state => {
+export const failure = (errorMessage: string) =>
+  new Parser(state => {
     if (state.isError) return state;
     return updateParserError(state, errorMessage);
   });
-};
diff --git a/src/parsers/lazy.ts b/src/parsers/lazy.ts
index ab3191f..f92ae40 100644
--- a/src/parsers/lazy.ts
+++ b/src/parsers/lazy.ts
@@ -6,8 +6,7 @@ import { Parser } from "../Parser";
  * @returns
  * @see https://rudus.pages.dev/docs/api/parsers/lazy
  */
-export const lazy = (parserThunk: () => Parser): Parser => {
-  return new Parser(state => {
+export const lazy = (parserThunk: () => Parser): Parser =>
+  new Parser(state => {
     return parserThunk().transformState(state);
   });
-};