From 511751e6118fdcabd8445d16cc2cfe670fe61ef8 Mon Sep 17 00:00:00 2001
From: Jon Coppeard <jcoppeard@mozilla.com>
Date: Tue, 26 Nov 2013 10:23:32 +0000
Subject: [PATCH] Bug 930427 - Improve debugger weakmap assertions r=billm

---
 js/src/vm/Debugger.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/js/src/vm/Debugger.h b/js/src/vm/Debugger.h
index 336d4100706..dc4c0f62224 100644
--- a/js/src/vm/Debugger.h
+++ b/js/src/vm/Debugger.h
@@ -78,6 +78,7 @@ class DebuggerWeakMap : private WeakMap<Key, Value, DefaultHasher<Key> >
     template<typename KeyInput, typename ValueInput>
     bool relookupOrAdd(AddPtr &p, const KeyInput &k, const ValueInput &v) {
         JS_ASSERT(v->compartment() == Base::compartment);
+        JS_ASSERT(!p.found());
         if (!incZoneCount(k->zone()))
             return false;
         bool ok = Base::relookupOrAdd(p, k, v);
@@ -87,6 +88,7 @@ class DebuggerWeakMap : private WeakMap<Key, Value, DefaultHasher<Key> >
     }
 
     void remove(const Lookup &l) {
+        JS_ASSERT(Base::has(l));
         Base::remove(l);
         decZoneCount(l->zone());
     }