From 7b9e11ad89549f08e1c750fc46bff0a03f059d95 Mon Sep 17 00:00:00 2001
From: William Chargin <wchargin@gmail.com>
Date: Wed, 30 Dec 2015 16:43:57 -0800
Subject: [PATCH] Make arrow-functions one-liners

Summary:
This fixes the indentation for expression arrow functions
that are continued on multiple lines.
This does not affect the `FunctionBody` variant of arrow functions,
which were already correct due to the opening brace.

Resolves pangloss/vim-javascript#332.

Test Plan:
Type
```javascript
const myNiftyArrowFunction = (foo, bar) =>
    foo + bar;
myNiftyArrowFunction(1, 2);
```
and note that it's indented correctly as you type.
Then run `gg=G` and make sure that it stays indented correctly.

Note also that the indentation of
```javascript
const myFunctionBodiedArrowFunction = (foo, bar) => {
    doAThing();
    return foo + bar;
};
myFunctionBodiedArrowFunction(1, 2);
```
is still correct.
---
 indent/javascript.vim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/indent/javascript.vim b/indent/javascript.vim
index 0f526db9..6ce1db8f 100644
--- a/indent/javascript.vim
+++ b/indent/javascript.vim
@@ -55,7 +55,7 @@ let s:continuation_regex = '\%([\\*+/.:]\|\%(<%\)\@<![=-]\|\W[|&?]\|||\|&&\|[^=]
 " TODO: this needs to deal with if ...: and so on
 let s:msl_regex = s:continuation_regex.'|'.s:expr_case
 
-let s:one_line_scope_regex = '\<\%(if\|else\|for\|while\)\>[^{;]*' . s:line_term
+let s:one_line_scope_regex = '\%(\<\%(if\|else\|for\|while\)\>\|=>\)[^{;]*' . s:line_term
 
 " Regex that defines blocks.
 let s:block_regex = '\%([{[]\)\s*\%(|\%([*@]\=\h\w*,\=\s*\)\%(,\s*[*@]\=\h\w*\)*|\)\=' . s:line_term