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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [TreatNullAs=NullString] should be renamed to [TreatNullAs=EmptyString] to match Web IDL"
href="https://bugs.webkit.org/show_bug.cgi?id=154654">154654</a>
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<th>Summary</th>
<td>[TreatNullAs=NullString] should be renamed to [TreatNullAs=EmptyString] to match Web IDL
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<th>Classification</th>
<td>Unclassified
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<th>Product</th>
<td>WebKit
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<th>Version</th>
<td>WebKit Nightly Build
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<th>Hardware</th>
<td>Unspecified
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<th>URL</th>
<td>http://heycam.github.io/webidl/#TreatNullAs
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<th>OS</th>
<td>Unspecified
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>Bindings
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>cdumez@apple.com
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<th>CC</th>
<td>darin@apple.com, sam@webkit.org
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<pre>[TreatNullAs=NullString] should be renamed to [TreatNullAs=EmptyString] to match Web IDL:
<a href="http://heycam.github.io/webidl/#TreatNullAs">http://heycam.github.io/webidl/#TreatNullAs</a>
The current WebKit behavior is the same as the IDL one [1], only the naming differs. We should align.
Note that [TreatNullAs=EmptyString] is a standard WebIDL extended attribute and is used in specifications. WebKit normally uses it in cases where the specification has it. However, WebKit also uses [TreatNullAs=NullString, TreatUndefined=NullString] for attributes / parameters that should actually be nullable. This is because support for nullable in our bindings generator is currently weak / incomplete. We should eventually use nullable (e.g. DOMString? value) [2] instead of [TreatNullAs=NullString, TreatUndefined=NullString] for those cases but this is a separate issue. Note that [TreatUndefined=XXX] is no longer part of Web IDL and should be dropped entirely once we better support nullable.
[1] <a href="http://heycam.github.io/webidl/#es-DOMString">http://heycam.github.io/webidl/#es-DOMString</a>
[2] <a href="http://heycam.github.io/webidl/#idl-nullable-type">http://heycam.github.io/webidl/#idl-nullable-type</a></pre>
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