From d94124e3b4a4380ad23c1a317fd3943664b7182a Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Sun, 4 Feb 2018 13:53:47 +0300
Subject: Somewhat more san directory structure

---
 src/parser/grammar/expressions.rs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 src/parser/grammar/expressions.rs

(limited to 'src/parser/grammar/expressions.rs')

diff --git a/src/parser/grammar/expressions.rs b/src/parser/grammar/expressions.rs
new file mode 100644
index 000000000..8caaf3553
--- /dev/null
+++ b/src/parser/grammar/expressions.rs
@@ -0,0 +1,20 @@
+use super::*;
+
+pub(super) fn literal(p: &mut Parser) -> bool {
+    match p.current() {
+        TRUE_KW | FALSE_KW | INT_NUMBER | FLOAT_NUMBER | BYTE | CHAR | STRING | RAW_STRING
+        | BYTE_STRING | RAW_BYTE_STRING => {
+            let lit = p.start();
+            p.bump();
+            lit.complete(p, LITERAL);
+            true
+        }
+        _ => false,
+    }
+}
+
+pub(super) fn expr(p: &mut Parser) {
+    if !literal(p) {
+        p.error().message("expected expression").emit();
+    }
+}
-- 
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