From ea6bde3305a5fda89bc42e159225b04604533d47 Mon Sep 17 00:00:00 2001
From: nitrix <me@nitrix.one>
Date: Mon, 11 Nov 2019 16:22:43 +0100
Subject: [PATCH] enforce parantheses around the conditional expression of an
 if statement

---
 src/main/antlr4/de/hsrm/compiler/Klang/Klang.g4 | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/antlr4/de/hsrm/compiler/Klang/Klang.g4 b/src/main/antlr4/de/hsrm/compiler/Klang/Klang.g4
index 43fdc79..6127283 100644
--- a/src/main/antlr4/de/hsrm/compiler/Klang/Klang.g4
+++ b/src/main/antlr4/de/hsrm/compiler/Klang/Klang.g4
@@ -22,7 +22,7 @@ print
   ;
 
 if_statement
-  : IF expression braced_block (ELSE braced_block)?
+  : IF OPAR expression CPAR braced_block (ELSE braced_block)?
   ;  
 
 expression
@@ -44,6 +44,8 @@ ELSE: 'else';
 SCOL: ';';
 OBRK: '{';
 CBRK: '}';
+OPAR: '(';
+CPAR: ')';
 
 MULT: '*';
 ADD: '+';