From 39515e4e32f18e281b9d01fc53b8a822b908efe0 Mon Sep 17 00:00:00 2001
From: nub31 <oliverlhs@outlook.com>
Date: Mon, 27 Jan 2025 16:53:08 +0100
Subject: [PATCH] Support for parentheses in binary expressions

---
 Nub.Lang/Nub.Lang/Input/program.nub |  3 +--
 Nub.Lang/Nub.Lang/Parsing/Parser.cs | 17 ++++++++++++-----
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/Nub.Lang/Nub.Lang/Input/program.nub b/Nub.Lang/Nub.Lang/Input/program.nub
index a28281a..eaaf715 100644
--- a/Nub.Lang/Nub.Lang/Input/program.nub
+++ b/Nub.Lang/Nub.Lang/Input/program.nub
@@ -1,4 +1,3 @@
 func main() {
-    let x = "test" == "test";
-    syscall(60, x);
+    syscall(60, 5 + 3 * 5);
 }
\ No newline at end of file
diff --git a/Nub.Lang/Nub.Lang/Parsing/Parser.cs b/Nub.Lang/Nub.Lang/Parsing/Parser.cs
index 2315a9d..1cafe69 100644
--- a/Nub.Lang/Nub.Lang/Parsing/Parser.cs
+++ b/Nub.Lang/Nub.Lang/Parsing/Parser.cs
@@ -237,12 +237,19 @@ public class Parser
     private ExpressionNode ParsePrimaryExpression()
     {
         var token = ExpectToken();
-        return token switch
+        switch (token)
         {
-            LiteralToken literal => new LiteralNode(literal.Value, literal.Type),
-            IdentifierToken identifier => ParseExpressionIdentifier(identifier),
-            _ => throw new Exception($"Unexpected token type {token.GetType().Name}")
-        };
+            case LiteralToken literal:
+                return new LiteralNode(literal.Value, literal.Type);
+            case IdentifierToken identifier:
+                return ParseExpressionIdentifier(identifier);
+            case SymbolToken { Symbol: Symbol.OpenParen }:
+                var expression = ParseExpression();
+                ExpectSymbol(Symbol.CloseParen);
+                return expression;
+            default: 
+                throw new Exception($"Unexpected token type {token.GetType().Name}");
+        }
     }
 
     private ExpressionNode ParseExpressionIdentifier(IdentifierToken identifier)