From a44abe5e7300976e331c21bca8315e5134784be7 Mon Sep 17 00:00:00 2001
From: me <me@alloca.space>
Date: Sat, 10 Jan 2026 16:56:51 +0200
Subject: [PATCH] move parse open parens out of parse_function

---
 first-interpreter/src/parse.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/first-interpreter/src/parse.c b/first-interpreter/src/parse.c
index b8f46d8..152a281 100644
--- a/first-interpreter/src/parse.c
+++ b/first-interpreter/src/parse.c
@@ -43,7 +43,6 @@ char* parse_identifier(TokenArray tokens, unsigned* tokens_index) {
 
 Expr parse_expr(TokenArray tokens, unsigned* tokens_index);
 Expr parse_function(TokenArray tokens, unsigned* tokens_index, char* name) {
-    parse_token(tokens, tokens_index, OPENPAREN);
     Expr* exprs = (Expr*)malloc((tokens.length - *tokens_index) * sizeof(Expr));
     unsigned expr_index = 0;
     while (*tokens_index < tokens.length && tokens.tokens[*tokens_index].tag != CLOSEPAREN) {
@@ -79,7 +78,7 @@ Expr parse_expr(TokenArray tokens, unsigned* tokens_index) {
             };
         }
         case IDENTIFIER: {
-            if (*tokens_index < tokens.length && tokens.tokens[*tokens_index].tag == OPENPAREN) {
+            if (maybe_parse_token(tokens, tokens_index, OPENPAREN)) {
                 return parse_function(tokens, tokens_index, token.data.identifier);
             } else {
                 return (Expr) {
@@ -132,8 +131,8 @@ Stmt parse_stmt(TokenArray tokens, unsigned* tokens_index) {
         };
     }
 	// Expression
-	else {
-        Expr expr = parse_function(tokens, tokens_index, identifier);
+	else if (maybe_parse_token(tokens, tokens_index, OPENPAREN)) {
+		Expr expr = parse_function(tokens, tokens_index, identifier);
 
         return (Stmt) {
             .tag = EXPR,
@@ -142,6 +141,11 @@ Stmt parse_stmt(TokenArray tokens, unsigned* tokens_index) {
             },
         };
     }
+	// Error
+	else {
+        fprintf(stderr, "Parse error: Unexpected token. Expected '(' or '='");
+		exit(1);
+	}
 }
 
 StmtArray parse_block(TokenArray tokens, unsigned* tokens_index) {