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Normative: remove IsCallable check in GetKeysIterator #101

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Jul 18, 2023
Merged

Normative: remove IsCallable check in GetKeysIterator #101

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6ac7731
Normative: remove IsCallable check in GetKeysIterator
bakkot Jul 18, 2023
6bfd889
Editorial: replace GetKeysIterator with GetIteratorFromMethod
bakkot Jul 18, 2023
b06b9f6
Meta: bump dependencies
bakkot Jul 18, 2023
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44 changes: 22 additions & 22 deletions package-lock.json
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4 changes: 2 additions & 2 deletions package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -9,8 +9,8 @@
"format": "emu-format --write 'spec/*.html'"
},
"devDependencies": {
"@tc39/ecma262-biblio": "^2.1.2407",
"ecmarkup": "^15.0.0"
"@tc39/ecma262-biblio": "2.1.2599",
"ecmarkup": "^17.0.2"
},
"version": "1.0.0",
"repository": {
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29 changes: 6 additions & 23 deletions spec/index.html
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Expand Up @@ -14,7 +14,7 @@ <h1>Set.prototype.union ( _other_ )</h1>
1. Let _O_ be the *this* value.
1. Perform ? RequireInternalSlot(_O_, [[SetData]]).
1. Let _otherRec_ be ? GetSetRecord(_other_).
1. Let _keysIter_ be ? GetKeysIterator(_otherRec_).
1. Let _keysIter_ be ? GetIteratorFromMethod(_otherRec_.[[Set]], _otherRec_.[[Keys]]).
1. Let _resultSetData_ be a copy of _O_.[[SetData]].
1. Let _next_ be *true*.
1. Repeat, while _next_ is not *false*,
Expand Down Expand Up @@ -54,7 +54,7 @@ <h1>Set.prototype.intersection ( _other_ )</h1>
1. NOTE: The number of elements in _O_.[[SetData]] may have increased during execution of _otherRec_.[[Has]].
1. Set _thisSize_ to the number of elements of _O_.[[SetData]].
1. Else,
1. Let _keysIter_ be ? GetKeysIterator(_otherRec_).
1. Let _keysIter_ be ? GetIteratorFromMethod(_otherRec_.[[Set]], _otherRec_.[[Keys]]).
1. Let _next_ be *true*.
1. Repeat, while _next_ is not *false*,
1. Set _next_ to ? IteratorStep(_keysIter_).
Expand Down Expand Up @@ -91,7 +91,7 @@ <h1>Set.prototype.difference ( _other_ )</h1>
1. If _inOther_ is *true*, then
1. Set _resultSetData_[_index_] to ~empty~.
1. Else,
1. Let _keysIter_ be ? GetKeysIterator(_otherRec_).
1. Let _keysIter_ be ? GetIteratorFromMethod(_otherRec_.[[Set]], _otherRec_.[[Keys]]).
1. Let _next_ be *true*.
1. Repeat, while _next_ is not *false*,
1. Set _next_ to ? IteratorStep(_keysIter_).
Expand All @@ -113,7 +113,7 @@ <h1>Set.prototype.symmetricDifference ( _other_ )</h1>
1. Let _O_ be the *this* value.
1. Perform ? RequireInternalSlot(_O_, [[SetData]]).
1. Let _otherRec_ be ? GetSetRecord(_other_).
1. Let _keysIter_ be ? GetKeysIterator(_otherRec_).
1. Let _keysIter_ be ? GetIteratorFromMethod(_otherRec_.[[Set]], _otherRec_.[[Keys]]).
1. Let _resultSetData_ be a copy of _O_.[[SetData]].
1. Let _next_ be *true*.
1. Repeat, while _next_ is not *false*,
Expand Down Expand Up @@ -162,7 +162,7 @@ <h1>Set.prototype.isSupersetOf ( _other_ )</h1>
1. Let _otherRec_ be ? GetSetRecord(_other_).
1. Let _thisSize_ be the number of elements in _O_.[[SetData]].
1. If _thisSize_ &lt; _otherRec_.[[Size]], return *false*.
1. Let _keysIter_ be ? GetKeysIterator(_otherRec_).
1. Let _keysIter_ be ? GetIteratorFromMethod(_otherRec_.[[Set]], _otherRec_.[[Keys]]).
1. Let _next_ be *true*.
1. Repeat, while _next_ is not *false*,
1. Set _next_ to ? IteratorStep(_keysIter_).
Expand Down Expand Up @@ -194,7 +194,7 @@ <h1>Set.prototype.isDisjointFrom ( _other_ )</h1>
1. NOTE: The number of elements in _O_.[[SetData]] may have increased during execution of _otherRec_.[[Has]].
1. Set _thisSize_ to the number of elements of _O_.[[SetData]].
1. Else,
1. Let _keysIter_ be ? GetKeysIterator(_otherRec_).
1. Let _keysIter_ be ? GetIteratorFromMethod(_otherRec_.[[Set]], _otherRec_.[[Keys]]).
1. Let _next_ be *true*.
1. Repeat, while _next_ is not *false*,
1. Set _next_ to ? IteratorStep(_keysIter_).
Expand Down Expand Up @@ -296,23 +296,6 @@ <h1>
</emu-alg>
</emu-clause>

<emu-clause id="sec-getkeysiterator" type="abstract operation">
<h1>
GetKeysIterator (
_setRec_: a Set Record,
): either a normal completion containing an Iterator Record or a throw completion
</h1>
<dl class="header">
</dl>
<emu-alg>
1. Let _keysIter_ be ? Call(_setRec_.[[Keys]], _setRec_.[[Set]]).
1. If _keysIter_ is not an Object, throw a *TypeError* exception.
1. Let _nextMethod_ be ? Get(_keysIter_, *"next"*).
1. If IsCallable(_nextMethod_) is *false*, throw a *TypeError* exception.
1. Return a new Iterator Record { [[Iterator]]: _keysIter_, [[NextMethod]]: _nextMethod_, [[Done]]: *false* }.
</emu-alg>
</emu-clause>

<emu-clause id="sec-setdatahas" type="abstract operation">
<h1>
SetDataHas (
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