From 80df0f9425e8b64b8a3fcca308cb784d02d52f62 Mon Sep 17 00:00:00 2001
From: Marcin Chrzanowski <marcin.j.chrzanowski@gmail.com>
Date: Sat, 15 Jul 2017 23:04:50 -0400
Subject: Implement the unary 'd' operation

---
 src/parser.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/parser.js b/src/parser.js
index fc9add3..3437f1a 100644
--- a/src/parser.js
+++ b/src/parser.js
@@ -33,7 +33,13 @@ newSymbol('(', function(parser) {
 
 newSymbol(')')
 
-newSymbol('d', null, 30, (left, parser) => {
+newSymbol('d', (parser) => {
+  return {
+    type: 'd',
+    left: { type: 'constant', value: 1 },
+    right: parser.expression(29)
+  }
+}, 30, (left, parser) => {
   return {
     type: 'd',
     left: left,
-- 
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