From 66501b6211c742c8f0244ecc127a77253c746640 Mon Sep 17 00:00:00 2001
From: Dan Robertson <dan@dlrobertson.com>
Date: Thu, 29 Nov 2018 01:41:15 +0000
Subject: [PATCH] Add existential as a keyword

Highlight existential if followed by a typedef.
---
 syntax/rust.vim | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/syntax/rust.vim b/syntax/rust.vim
index 7780610c..63841c9a 100644
--- a/syntax/rust.vim
+++ b/syntax/rust.vim
@@ -21,6 +21,8 @@ syn keyword   rustStructure struct enum nextgroup=rustIdentifier skipwhite skipe
 syn keyword   rustUnion union nextgroup=rustIdentifier skipwhite skipempty contained
 syn match rustUnionContextual /\<union\_s\+\%([^[:cntrl:][:space:][:punct:][:digit:]]\|_\)\%([^[:cntrl:][:punct:][:space:]]\|_\)*/ transparent contains=rustUnion
 syn keyword   rustOperator    as
+syn keyword   rustExistential existential nextgroup=rustTypedef skipwhite skipempty contained
+syn match rustExistentialCtxt /\<existential\_s\+type/ transparent contains=rustExistential,rustTypedef
 
 syn match     rustAssert      "\<assert\(\w\)*!" contained
 syn match     rustPanic       "\<panic\(\w\)*!" contained
@@ -281,6 +283,7 @@ hi def link rustNumber        Number
 hi def link rustBoolean       Boolean
 hi def link rustEnum          rustType
 hi def link rustEnumVariant   rustConstant
+hi def link rustExistential   Keyword
 hi def link rustConstant      Constant
 hi def link rustSelf          Constant
 hi def link rustFloat         Float