Is contextual checking possible here? I do a lot of this: if( foo.bar == null ) ...
which of course can generate "WARNING: reference to undefined property 'bar'". Well duh, that's why I'm checking. On the other hand, once or twice I've been save by warnings from: var x = foo.bar + baz; I suspect that if the warnings are optional, I'll just get in the habit of using a lot of the first example. In turn, this means that when I decide to use the optional warnings to track down and instance of the second example I'll drown in a flood of red herrings. This is where a little bit of contextual smarts would be nice. If that's even reasonably possible... On May 7, 2006, at 7:47 PM, P T Withington wrote: > Looks good, but what is 'hasAttribute'? Do you mean hasOwnProperty? > (Or 'in', but we don't permit 'in'). > > The idiom we use for testing the existence of a property without > getting a warning is this['prop'] -- the debugger does not warn on > that. > > But perhaps we should be working on ERROR's first, not WARNING's. It > is not an error in Javascript to reference a non-existent property, > we only have a warning to help people debug. Maybe I should make > that warning optional. > > On 2006-05-07, at 17:56 EDT, Benjamin Shine wrote: > >> >> Tucker, I have risen to approximately 1% of your challenge. If >> these fixes are in the right vein, I'll keep going. >> >> Change 42100 by [EMAIL PROTECTED] on 2006/05/07 14:49:36 >> *pending* >> >> Summary: Eliminating a few warnings in LaszloCanvas.as >> instantiation. >> >> New Features: >> >> Bugs Fixed: >> >> Technical Reviewer: ptw (pending) >> QA Reviewer: frisco (pending) >> Doc Reviewer: (pending) >> >> Documentation: >> >> Release Notes: >> >> Details: >> This change eliminates the following runtime errors and >> warnings, when I run http://localhost:8087/lps-legals/test/lztest/ >> lztest-simple.lzx?debug=true >> 07 May 2006 14:21:26 (127.0.0.1 2) INFO >> responders.ResponderEVAL – CLIENT_LOG ERROR: views/LaszloCanvas.as: >> 256: undefined object does not have a property ‘sendEvent’ >> 07 May 2006 14:21:26 (127.0.0.1 1) INFO >> responders.ResponderEVAL – CLIENT_LOG WARNING: views/ >> LaszloCanvas.as:256: reference to undefined property >> ‘onpercentcreated’ >> 07 May 2006 14:21:26 (127.0.0.1 3) INFO >> responders.ResponderEVAL – CLIENT_LOG WARNING: views/ >> LaszloCanvas.as:258: reference to undefined property ‘initdelay’ >> 07 May 2006 14:21:26 (127.0.0.1 4) INFO >> responders.ResponderEVAL – CLIENT_LOG WARNING: views/ >> LaszloCanvas.as:308: reference to undefined property ’LZlateinit’ >> >> Tests: >> >> Affected files ... >> >> ... //depot/lps-legals/WEB-INF/lps/lfc/core/LzNode.as#7 edit >> ... //depot/lps-legals/WEB-INF/lps/lfc/views/LaszloCanvas.as#5 edit >> ... //depot/lps-legals/lps/utils/lztestmanager.lzx#2 edit >> >> >> <changeset-42100.zip> >> >> benjamin shine >> software engineer >> [EMAIL PROTECTED] >> >> >> > > > _______________________________________________ > Laszlo-dev mailing list > [email protected] > http://www.openlaszlo.org/mailman/listinfo/laszlo-dev _______________________________________________ Laszlo-dev mailing list [email protected] http://www.openlaszlo.org/mailman/listinfo/laszlo-dev
