From d6240a4b184cac1fbf61ab35f9f3813efb780d31 Mon Sep 17 00:00:00 2001
From: NanoTech
Date: Tue, 6 Dec 2016 09:10:15 +0000
Subject: Initial commit

---
 src/grammar_util.rs | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 src/grammar_util.rs

(limited to 'src/grammar_util.rs')

diff --git a/src/grammar_util.rs b/src/grammar_util.rs
new file mode 100644
index 0000000..cbd1e59
--- /dev/null
+++ b/src/grammar_util.rs
@@ -0,0 +1,8 @@
+use core::Expr;
+
+pub type BoxExpr = Box<Expr<(), ()>>;
+pub type ExprOpFn = fn(BoxExpr, BoxExpr) -> Expr<(), ()>;
+
+pub fn bx<T>(x: T) -> Box<T> {
+    Box::new(x)
+}
-- 
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