From 7b9a324ebfa06cac1e9b95c6724de4f4c2e51c90 Mon Sep 17 00:00:00 2001
From: Olof-Joachim Frahm <olof@macrolet.net>
Date: Sat, 15 Jun 2013 11:25:41 +0200
Subject: [PATCH] Check for odd number of keyword arguments.

---
 src/compiler.lisp |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/compiler.lisp b/src/compiler.lisp
index 39234c1..eace27d 100644
--- a/src/compiler.lisp
+++ b/src/compiler.lisp
@@ -368,8 +368,11 @@
                (mapconcat #'parse-keyword keyword-arguments))))
      ;; Check for unknown keywords
      (when keyword-arguments
-       (code "for (i=" (+ n-required-arguments n-optional-arguments)
-             "; i<nargs; i+=2){" *newline*
+       (code "var start = " (+ n-required-arguments n-optional-arguments) ";" *newline*
+             "if ((nargs - start) % 2 == 1){" *newline*
+             (indent "throw 'Odd number of keyword arguments';" *newline*)
+             "}" *newline*
+             "for (i = start; i<nargs; i+=2){" *newline*
              (indent "if ("
                      (join (mapcar (lambda (x)
                                      (concat "arguments[i+2] !== " (ls-compile (caar x))))
-- 
1.7.10.4