enforce parantheses around the conditional expression of an if statement

2019-11-11 16:22:43 +01:00
parent 0021e4da60
commit ea6bde3305
1 changed files with 3 additions and 1 deletions
--- 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: '+';