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[Bug 16312] New: use of undocumented 'switch' convention for rule formulation is ambiguous

From: <bugzilla@jessica.w3.org>
Date: Sun, 11 Mar 2012 05:18:26 +0000
To: public-webapps@w3.org
Message-ID: <bug-16312-2927@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=16312

           Summary: use of undocumented 'switch' convention for rule
                    formulation is ambiguous
           Product: WebAppsWG
           Version: unspecified
          Platform: All
               URL: http://dvcs.w3.org/hg/xhr/raw-file/8d4e9ccfdbd4/Overvi
                    ew.html#infrastructure-for-the-send()-method
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XHR
        AssignedTo: annevk@opera.com
        ReportedBy: glenn@skynav.com
         QAContact: public-webapps-bugzilla@w3.org
                CC: mike@w3.org, public-webapps@w3.org


some, but not all of the rule formulations in XHR are based on an undocumented
'switch' convention, that, without further explanation, allows ambiguous
interpretation:

for example, in 4.7.7 appears the following:

↪ Once the whole response entity body has been received
↪ If there is no response entity body and the state is LOADING
↪ If there is no response entity body and the synchronous flag is set

        Switch to the DONE state.

if I rephrase this as:

↪ If A
↪ If B
↪ If C

        Then X

then which of the following is meant by the above convention?

#1

If A && B && C then X then break from switch

#2

If A && B && C then X then fall through to next rule

#3

If A || B || C then X then break from switch

#4

If A || B || C then X then fall through to next rule

any of these are possible interpretations given the lack of an explanation of
this convention

[i note that this convention also appears in HTML5 drafts and is also not
documented there either]

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Received on Sunday, 11 March 2012 05:18:29 GMT

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