From 63882f9856979a16dffea5174abc38100f44efaf Mon Sep 17 00:00:00 2001
From: Marshall Lochbaum <mwlochbaum@gmail.com>
Date: Mon, 23 Nov 2020 20:41:16 -0500
Subject: Tighten up subject assignment target checking

---
 src/c.bqn | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/c.bqn b/src/c.bqn
index 1b005f99..ecdf0da1 100644
--- a/src/c.bqn
+++ b/src/c.bqn
@@ -155,7 +155,7 @@ Parse ← {r‿vn‿i‿e←𝕨⋄nv←≠vn
   aid←(¯10⊸≤∧<⟜nv)𝕩-vi
   "Function or modifier assignment to a non-name"_err_(at⊏G) ¬(ar=0)∨at⊏aid
   aa←×g⊏ac←»+`gi⊏«⊸-(1+af+(ai∊ni)+2×(⊑bG)-˜ai⊏𝕩)⌾(at⊸⊏)0¨𝕩
-  "Assignment target must be a name or list of targets"_err_(G) (aid∨ps∨𝕩∊bB⊑⊸+1‿5)<aa∧0=er
+  "Assignment target must be a name or list of targets"_err_(G) ((𝕩=3+⊑bB)<(aid∧r≤0)∨ps∨𝕩 M bB)<aa∧0=er
   "Can't use result of function/modifier assignment without parentheses"_err_(G) (0<er)∧(0≤r)∧»⊸>aa
 
   ip←id⊏ac⋄d←ip M 2‿4
-- 
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