From 4b9f1a2e392f67a6205c31294b66e0a54618024a Mon Sep 17 00:00:00 2001
From: Alexey Orlenko <eaglexrlnk@gmail.com>
Date: Wed, 22 Aug 2018 15:19:21 +0300
Subject: [PATCH] feat(rules): omit arrow function parens unless they are
 necessary

Remove `requireForBlockBody` option of `arrow-body-style` rule.

BREAKING CHANGE: previously, only arrow functions consisting of a single
expression were allowed to omit parentheses around the parameter list
(and required to, if there's only one parameter in the list).  After
this change, the parens are only allowed when they are required
syntactically.

Before:

```js
const f = x => x;

const g = (x, y) => x + y;

const h = (x) => {
  console.log(x);
};

const i = (x, f) => {
  f(x);
};
```

After:

```js
// Not affected
const f = x => x;

// Not affected
const g = (x, y) => x + y;

// AFFECTED
const h = x => {
  console.log(x);
};

// Not affected
const i = (x, f) => {
  f(x);
};
```

This rule is fixable via `eslint --fix`.

Refs: https://github.com/metarhia/Metarhia/issues/22
---
 rules/ecmascript-6.js | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/rules/ecmascript-6.js b/rules/ecmascript-6.js
index ee32bba..03ac5cd 100644
--- a/rules/ecmascript-6.js
+++ b/rules/ecmascript-6.js
@@ -12,9 +12,6 @@ module.exports = {
     'arrow-parens': [
       'error',
       'as-needed',
-      {
-        requireForBlockBody: true,
-      },
     ],
     'arrow-spacing': [
       'error',