- From: <bugzilla@jessica.w3.org>
- Date: Wed, 10 Dec 2014 22:50:53 +0000
- To: public-html-media@w3.org
https://www.w3.org/Bugs/Public/show_bug.cgi?id=27559
Bug ID: 27559
Summary: Clarify TrackDefaultList ctor for shallow vs deep copy
of trackDefaults parameter
Product: HTML WG
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P2
Component: Media Source Extensions
Assignee: adrianba@microsoft.com
Reporter: wolenetz@google.com
QA Contact: public-html-bugzilla@w3.org
CC: mike@w3.org, public-html-media@w3.org
TrackDefaultList constructor takes a sequence<TrackDefault> parameter named
trackDefaults.
After enforcing uniqueness of <type,byteStreamTrackID> within trackDefaults,
the spec says to:
"2. Store a copy of trackDefaults in this new object so the values can be
returned by the accessor methods."
The spec is unclear whether a shallow or deep copy of the TrackDefault objects
within trackDefaults is required.
Since TrackDefault exposes no mutator methods, a shallow copy should suffice
(it would not allow apps to violate the <type,byteStreamTrackID> uniqueness
constraint previously enforced in the TrackDefaultList ctor.)
The type of copy is app-visible, hence this bug to clarify the spec.
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Received on Wednesday, 10 December 2014 22:50:55 UTC