313
edits
Exceptions: Difference between revisions
note about qi change
(note about qi change) |
|||
| Line 65: | Line 65: | ||
=== Special Case Error: XPCOM Infrastructure === | === Special Case Error: XPCOM Infrastructure === | ||
<code>QueryInterface</code> | <code>QueryInterface</code> has been redesigned so that it never throws an exception. It returns a null pointer on failure, and callers must check for it if there is a possibility of failure. (Many <code>QueryInterface</code> calls are guaranteed to succeed.) (Note: the redesign hasn't been checked in to trunk yet.) | ||
<code>GetService</code> may be handled the same way. (TBD) | <code>GetService</code> may be handled the same way. (TBD) | ||
<code>CreateInstance</code> might also generate OOMs only, although other failure modes are possible. (TBD) | <code>CreateInstance</code> might also generate OOMs only, although other failure modes are possible. (TBD) | ||
=== XPConnect === | === XPConnect === | ||