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[Bug 21295] overload resolution: are DOMString and sequence<T> distinguishable now?

From: <bugzilla@jessica.w3.org>
Date: Fri, 15 Mar 2013 01:13:40 +0000
To: public-script-coord@w3.org
Message-ID: <bug-21295-3890-hkIue0EYcP@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=21295

Boris Zbarsky <bzbarsky@mit.edu> changed:

           What    |Removed                     |Added
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                 CC|                            |bzbarsky@mit.edu

--- Comment #1 from Boris Zbarsky <bzbarsky@mit.edu> ---
DOMString and sequence are distinguishable, yes.

As for how you decide which overload is being called, that's described at
http://dev.w3.org/2006/webapi/WebIDL/#dfn-overload-resolution-algorithm

In this case, step 13 is reached with i == 0.  The substeps of step 13 are
followed, you skip step 7 because V is not an object, and then step 8 treats it
as a DOMString.

That's assuming what's passed in is a primitive string.  If a JS String object
is passed in, it will in fact be treated as a sequence the way the spec is
currently written, as far as I can tell.  That might be worth fixing....

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