From e5273d33d05196ca215db4b1c4e207328fa5df08 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Sat, 3 Feb 2018 12:05:25 +0300
Subject: G: const item

---
 src/parser/event_parser/grammar/items/consts.rs | 21 ++++++++++++++++
 src/parser/event_parser/grammar/items/mod.rs    | 33 ++++++++++++++-----------
 2 files changed, 40 insertions(+), 14 deletions(-)
 create mode 100644 src/parser/event_parser/grammar/items/consts.rs

(limited to 'src/parser/event_parser')

diff --git a/src/parser/event_parser/grammar/items/consts.rs b/src/parser/event_parser/grammar/items/consts.rs
new file mode 100644
index 000000000..c9881d681
--- /dev/null
+++ b/src/parser/event_parser/grammar/items/consts.rs
@@ -0,0 +1,21 @@
+use super::*;
+
+pub(super) fn static_item(p: &mut Parser) {
+    const_or_static(p, STATIC_KW)
+}
+
+pub(super) fn const_item(p: &mut Parser) {
+    const_or_static(p, CONST_KW)
+}
+
+fn const_or_static(p: &mut Parser, kw: SyntaxKind) {
+    assert!(p.at(kw));
+    p.bump();
+    p.eat(MUT_KW); // TODO: validator to forbid const mut
+    p.expect(IDENT);
+    p.expect(COLON);
+    types::type_ref(p);
+    p.expect(EQ);
+    expressions::expr(p);
+    p.expect(SEMI);
+}
diff --git a/src/parser/event_parser/grammar/items/mod.rs b/src/parser/event_parser/grammar/items/mod.rs
index 9930de347..8ccf8f90f 100644
--- a/src/parser/event_parser/grammar/items/mod.rs
+++ b/src/parser/event_parser/grammar/items/mod.rs
@@ -2,6 +2,7 @@ use super::*;
 
 mod structs;
 mod use_item;
+mod consts;
 
 pub(super) fn mod_contents(p: &mut Parser, stop_on_r_curly: bool) {
     attributes::inner_attributes(p);
@@ -47,9 +48,26 @@ fn item(p: &mut Parser) {
             }
         }
         STATIC_KW => {
-            static_item(p);
+            consts::static_item(p);
             STATIC_ITEM
         }
+        CONST_KW => match p.nth(1) {
+            FN_KW => {
+                p.bump();
+                fn_item(p);
+                FN_ITEM
+            }
+            UNSAFE_KW if p.nth(2) == FN_KW => {
+                p.bump();
+                p.bump();
+                fn_item(p);
+                FN_ITEM
+            }
+            _ => {
+                consts::const_item(p);
+                CONST_ITEM
+            }
+        },
         MOD_KW => {
             mod_item(p);
             MOD_ITEM
@@ -101,19 +119,6 @@ fn extern_block(p: &mut Parser) {
     p.bump();
     p.expect(R_CURLY);
 }
-
-fn static_item(p: &mut Parser) {
-    assert!(p.at(STATIC_KW));
-    p.bump();
-    p.eat(MUT_KW);
-    p.expect(IDENT);
-    p.expect(COLON);
-    types::type_ref(p);
-    p.expect(EQ);
-    expressions::expr(p);
-    p.expect(SEMI);
-}
-
 fn mod_item(p: &mut Parser) {
     assert!(p.at(MOD_KW));
     p.bump();
-- 
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