480526 - Wrong access to Components.interfaces.nsIMIMEService

Status: RESOLVED FIXED

(Developer Documentation Graveyard :: General, defect)

Description

[fnevgeny]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.6) Gecko/2009011912 Firefox/3.0.6
Build Identifier: 

On the above page, in one example one sees

var mimeService = Components.classes["@mozilla.org/mime;1"]  
          .createInstance(Components.interfaces.nsIMIMEService);

instead of .getService. Interestingly, using the .createInstance() interface works too - till the garbage collector puts his hands on the mimeService var... Then FF randomly crashes ;-(

Reproducible: Always




The MDC entry for nsIMIMEService is missing....

Comment 1

[fnevgeny]

Also, here: https://developer.mozilla.org/pl/XMLHttpRequest

Comment 2

[timeless]

it's a wiki, supposedly you can change them w/o filing bugs :).

Comment 3

[fnevgeny]

The "Edit page" button is disabled....

Comment 4

[Nickolay_Ponomarev]

You need to create an account first (the "Register" link). All you need is an e-mail address.

Comment 5

[fnevgeny]

Done. Yet: shouldn't an attempt to createInstance() where getService() is supposed to be called generate an error?

Comment 6

[Nickolay_Ponomarev]

That's a valid question that I don't remember seeing a good answer to, but it shouldn't be asked in a bug. Marking this bug FIXED (thanks for fixing up the docs!), please ask the question in http://groups.google.com/group/mozilla.dev.platform/topics?pli=1