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      <div class="chatlog__message-aside"><img class="chatlog__avatar" src="https://cdn.discordapp.com/avatars/375129448900591616/515e8a82d7bf15378bf69f2b8a1a03f7.png?size=512" alt="Avatar" loading="lazy"></div>
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        <div class="chatlog__header"><span class="chatlog__author" title="yniw" data-user-id="375129448900591616">niw</span> <a href="/channels/306995750418513920?category=main&amp;channel=swift-2&amp;message_id=853848214813278248"><span class="chatlog__timestamp" title="Monday, June 14, 2021 4:07 AM"></span></a><a href="#chatlog__message-container-853847973922603028">6/14/2021 4:07 AM</a></div>
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              <div class="chatlog__markdown-quote-content">``` @MainActor func a() async { } func f() { let s = DispatchSemaphore(value: 0) async { await a() s.signal() } s.wait() } f() ```</div>
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        <div class="chatlog__short-timestamp" title="Monday, June 14, 2021 4:07 AM">4:07 AM</div>
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        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve">これかー。</span></div>
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        <div class="chatlog__short-timestamp" title="Monday, June 14, 2021 4:07 AM">4:07 AM</div>
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        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve">けっこう厳しいな、これ。libdispatch多用してる既存の世界でつかったら摩訶不思議なdeadlock起きそう。main threadならまだわかるけど。</span> <span class="chatlog__edited-timestamp" title="Monday, June 14, 2021 4:08 AM">(edited)</span></div>
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