From c7504ddfe8bbdf0a123658ad7e2844fdb0f4da81 Mon Sep 17 00:00:00 2001
From: alpha <alpha@kejadlen.dev>
Date: Mon, 15 Aug 2022 23:19:49 +0000
Subject: [PATCH] 10.1.1

FossilOrigin-Name: c0a4d7dadf87d80ec3d0b6ef67e74d6c49d3ff2efa3179acf0ed90599b476efd
---
 ruby/lib/lox/parser.rb | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/ruby/lib/lox/parser.rb b/ruby/lib/lox/parser.rb
index c6e8e24..1e14e53 100644
--- a/ruby/lib/lox/parser.rb
+++ b/ruby/lib/lox/parser.rb
@@ -16,6 +16,8 @@ module Lox
         statements << declaration
       end
       statements
+    rescue ParseError
+      synchronize!
     end
 
     private
@@ -24,8 +26,6 @@ module Lox
       return var_declaration if match?(:VAR)
 
       statement
-    rescue ParseError
-      synchronize!
     end
 
     def var_declaration
@@ -240,6 +240,8 @@ module Lox
       args = []
       if !check?(:RIGHT_PAREN)
         loop do
+          raise ParseError.new(peek,  "Can't have more than 255 arguments.") if args.size >= 255
+
           args << expression
           break unless match?(:COMMA)
         end