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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [ES6] "super" and "this" should be lexically bound inside an arrow function and should live in a JSLexicalEnvironment"
href="https://bugs.webkit.org/show_bug.cgi?id=149338#c81">Comment # 81</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [ES6] "super" and "this" should be lexically bound inside an arrow function and should live in a JSLexicalEnvironment"
href="https://bugs.webkit.org/show_bug.cgi?id=149338">bug 149338</a>
from <span class="vcard"><a class="email" href="mailto:sbarati@apple.com" title="Saam Barati <sbarati@apple.com>"> <span class="fn">Saam Barati</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=149338#c80">comment #80</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=149338#c79">comment #79</a>)
> > (In reply to <a href="show_bug.cgi?id=149338#c78">comment #78</a>)
> > > What happens when we call super once we've exited the constructor function?
> > > Is there anything in the spec on this? Does is mutate "this"?
> > >
> > > Like:
> > > ```
> > > class C extends B {
> > > constructor() {
> > > this.weird = () => super();
> > > super();
> > > }
> > > foo() {
> > > this.weird();
> > > }
> > > }
> > >
> > > (new C).foo();
> > > ```
> >
> > I've not checked this case, but I'm sure that we can't run super() twice in
> > constructor, second call should lead to RuntimeException. See tred on
> > es6-discuss <a href="https://esdiscuss.org/topic/duplicate-super-call-behaviour">https://esdiscuss.org/topic/duplicate-super-call-behaviour</a>.
> > But this behavior is not related to the arrow function.
> Interesting. We currently don't throw on a second call to super().
> That's bad, we should file a bug.</span >
I created this bug for this problem:
<a class="bz_bug_link
bz_status_NEW "
title="NEW - calling super() a second time in a constructor should throw"
href="show_bug.cgi?id=151113">https://bugs.webkit.org/show_bug.cgi?id=151113</a></pre>
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