From 53c94e3ad8782b2ab51bea1aeb5687ec34f7a96d Mon Sep 17 00:00:00 2001
From: csmoe <csmoe@msn.com>
Date: Sun, 30 Dec 2018 21:51:40 +0800
Subject: parse minus before number literal

---
 crates/ra_syntax/src/grammar/patterns.rs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'crates/ra_syntax/src')

diff --git a/crates/ra_syntax/src/grammar/patterns.rs b/crates/ra_syntax/src/grammar/patterns.rs
index 64cdf0b1b..692ffbb8c 100644
--- a/crates/ra_syntax/src/grammar/patterns.rs
+++ b/crates/ra_syntax/src/grammar/patterns.rs
@@ -48,11 +48,16 @@ fn atom_pat(p: &mut Parser, recovery_set: TokenSet) -> Option<CompletedMarker> {
     // test literal_pattern
     // fn main() {
     //     match () {
+    //         -1 => (),
     //         92 => (),
     //         'c' => (),
     //         "hello" => (),
     //     }
     // }
+    if p.at(MINUS) && (p.nth(1) == INT_NUMBER || p.nth(1) == FLOAT_NUMBER) {
+        p.bump();
+    }
+
     if let Some(m) = expressions::literal(p) {
         return Some(m);
     }
-- 
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