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Add abort reason to AbortSignal #1027

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merged 20 commits into from
Nov 8, 2021
Merged

Add abort reason to AbortSignal #1027

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e18e130
add abort reason to AbortSignal and Controller
nidhijaju Oct 18, 2021
9fd1583
address comments
nidhijaju Oct 19, 2021
74a1f2f
pass reason to signal abort
nidhijaju Oct 20, 2021
6a10478
add reason to static abort & fix description
nidhijaju Oct 21, 2021
e2d5792
make small fixes
nidhijaju Oct 21, 2021
8fbd339
remove undefined & combine reason assignment steps
nidhijaju Oct 21, 2021
a213031
Apply suggestions from code review
nidhijaju Oct 21, 2021
0eaaf51
add <var>
nidhijaju Oct 21, 2021
03f41be
address comments
nidhijaju Oct 26, 2021
a10677a
add name to acknowledgements
nidhijaju Oct 26, 2021
239e094
remove empty line in AbortSignal interface
nidhijaju Oct 26, 2021
c6297b8
move signal.reason below aborted
nidhijaju Oct 26, 2021
fa2dd31
add abort reason assertion to signal abort
nidhijaju Oct 28, 2021
98dcce7
remove aborted flag
nidhijaju Oct 28, 2021
a321593
remove assert
nidhijaju Oct 28, 2021
e469279
add aborted predicate
nidhijaju Oct 29, 2021
c102cd8
use predicate in more places
nidhijaju Oct 29, 2021
dbbfeb6
fix reason var
nidhijaju Oct 29, 2021
330c5d7
also update the "how to use" section
annevk Oct 29, 2021
723f5e8
nits
annevk Oct 30, 2021
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21 changes: 16 additions & 5 deletions dom.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -1729,7 +1729,7 @@ interface AbortController {

[SameObject] readonly attribute AbortSignal signal;

undefined abort();
undefined abort(optional any reason = null);
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};
</pre>

Expand All @@ -1741,8 +1741,9 @@ interface AbortController {
<dt><code><var>controller</var> . <a attribute for=AbortController>signal</a></code>
<dd>Returns the {{AbortSignal}} object associated with this object.

<dt><code><var>controller</var> . <a method for=AbortController lt=abort()>abort</a>()</code>
<dd>Invoking this method will set this object's {{AbortSignal}}'s [=AbortSignal/aborted flag=] and
<dt><code><var>controller</var> . <a method for=AbortController lt=abort()>abort</a>(reason)</code>
<dd>Invoking this method will set this object's {{AbortSignal}}'s [=AbortSignal/aborted flag=],
store the <var>reason</var> in this object's {{AbortSignal}}'s [=AbortSignal/abort reason=], and
signal to any observers that the associated activity is to be aborted.
</dl>

Expand All @@ -1762,8 +1763,10 @@ constructor steps are:
<p>The <dfn attribute for=AbortController><code>signal</code></dfn> getter steps are to return
<a>this</a>'s <a for=AbortController>signal</a>.

<p>The <dfn method for=AbortController><code>abort()</code></dfn> method steps are to
<a for=AbortSignal>signal abort</a> on <a>this</a>'s <a for=AbortController>signal</a>.
<p>The <dfn method for=AbortController><code>abort(reason)</code></dfn> method steps are to
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<a for=AbortSignal>signal abort</a> on <a>this</a>'s <a for=AbortController>signal</a>, with
the provided <var>reason</var>. If a <var>reason</var> is not passed, create a new "{{AbortError!!exception}}"
{{DOMException}}.
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<h3 id=interface-AbortSignal>Interface {{AbortSignal}}</h3>
Expand All @@ -1775,6 +1778,8 @@ interface AbortSignal : EventTarget {

readonly attribute boolean aborted;

readonly attribute any reason;
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attribute EventHandler onabort;
};</pre>

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Expand All @@ -1790,6 +1795,9 @@ interface AbortSignal : EventTarget {
<p>An {{AbortSignal}} object has an associated <dfn export for=AbortSignal>aborted flag</dfn>. It is
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FYI, this broke the builds of specs that use the aborted flag. No objections to the change; we just need to keep looking for better ways to do this sort of migration.

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Let's continue to discuss in #1030.

unset unless specified otherwise.

<p>An {{AbortSignal}} object has an associated <dfn export for=AbortSignal>abort reason</dfn>, which is an
argument given to {{AbortController}}'s {{AbortController/abort()}}, or undefined.
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<p>An {{AbortSignal}} object has associated <dfn for=AbortSignal>abort algorithms</dfn>, which is a
<a for=/>set</a> of algorithms which are to be executed when its [=AbortSignal/aborted flag=] is
set. Unless specified otherwise, its value is the empty set.
Expand Down Expand Up @@ -1826,6 +1834,9 @@ service worker.
<p>The <dfn attribute for=AbortSignal>aborted</dfn> getter steps are to return true if <a>this</a>'s
[=AbortSignal/aborted flag=] is set; otherwise false.

<p>The <dfn attribute for=AbortSignal>reason</dfn> getter steps are to return <a>this</a>'s
<a for=AbortSignal>abort reason</a>.

<p>The <dfn attribute for=AbortSignal><code>onabort</code></dfn> attribute is an
<a>event handler IDL attribute</a> for the <dfn export for=AbortSignal><code>onabort</code></dfn>
<a>event handler</a>, whose <a>event handler event type</a> is
Expand Down