From a97cce184ccf178dc34a0f0489c9df6f3ba4ee5c Mon Sep 17 00:00:00 2001
From: greg <greg.shuflin@protonmail.com>
Date: Fri, 24 Jul 2015 02:08:55 -0700
Subject: [PATCH] Empty program is valid too

---
 src/parser.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/parser.rs b/src/parser.rs
index 8d985c1..3825989 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -52,6 +52,10 @@ pub fn parse(input: Vec<Token>) -> ParseResult {
 
     let mut tokens: Tokens = input.iter().peekable();
 
+    if let Some(&&EOF) = tokens.peek() {
+        return ParseResult::Ok(AST::Statements(vec!()));
+    }
+
     match statements(&mut tokens) {
         ok@ParseResult::Ok(_) => {
             expect!(EOF, &mut tokens);