Subj : Re: [SpiderMonkey] JS_DefineObject returns null after moving to newest sources
To   : Brendan Eich <brendan@meer.net>
From : ggadwa@voyager.net (Brian Barnes)
Date : Sat Jul 19 2003 07:00 pm

On Saturday, July 19, 2003, at 12:16 PM, Brendan Eich wrote:

> Can you do me a favor and show me the stack backtrace when 
> scripts_resolve_object is called indirectly from your (doomed to fail, 
> with the new version of the engine) call to JS_DefineProperty?

Sure Brendan.

I didn't catch what was going on either because my resolve returned 
JS_FALSE, to cancel the addition.  This was causing me problems 
elsewhere, so it was mysterious until I tracked it down.  Or, i.e., I 
didn't check for JS_DefineProperty to return null :)  Oops.

Hopefully this is enough.  I forced the scripts_resolve_object to throw 
an error, so I could get the backtrace.

Thread 0 Crashed:
  #0   0x00044104 in scripts_resolve_object
  #1   0x000440f8 in scripts_resolve_object
  #2   0x00057e84 in FindConstructor
  #3   0x000551a8 in GetClassPrototype
  #4   0x000523a8 in js_NewObject
  #5   0x00049568 in JS_DefineObject
  #6   0x00044908 in js_add_event_object
  #7   0x0004396c in scripts_add
  #8   0x00006dec in game_start
  #9   0x0000b764 in main
  #10  0x00004088 in _start (crt.c:267)
  #11  0x00003f08 in start


[>] Brian

.