From 37fe5d5f81ca5739ab8af979b1bc32859a272ab8 Mon Sep 17 00:00:00 2001
From: Zack Buhman <zack@buhman.org>
Date: Wed, 23 Aug 2023 20:41:23 +0000
Subject: [PATCH] parser: add error hint for `x = 1`

I've accidentally attempted this multiple times myself during testing.
---
 parser.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/parser.cpp b/parser.cpp
index 7eef07b..568c2fa 100644
--- a/parser.cpp
+++ b/parser.cpp
@@ -615,7 +615,11 @@ std::optional<stmt_t *> parser_t::statement()
     else
       throw error(peek(), "expected eol or eof after instruction");
   } else {
-    throw error(peek(), "expected statement");
+    auto exc = error(peek(), "expected statement");
+    advance();
+    if (check(equal) || check(_equ))
+      std::cerr << "hint: it is not legal to assign a value to a keyword" << std::endl;
+    throw exc;
   }
 }