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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Clang should raise a compile-error when co_await used in a catch-block"
href="https://bugs.llvm.org/show_bug.cgi?id=40978">40978</a>
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<th>Summary</th>
<td>Clang should raise a compile-error when co_await used in a catch-block
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++2a
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>lewissbaker@gmail.com
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<th>CC</th>
<td>blitzrakete@gmail.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre>The Coroutines TS N4775 [expr.await] paragraph 2 states:
<span class="quote">> An await-expression shall appear only in a potentially-evaluated expression
> within the compound-statement of a function-body outside of a handler (Clause 18).</span >
However, current trunk version of clang does not emit a
compile-error/diagnostic when a co_await expression is used within a handler.
<a href="https://godbolt.org/z/24MgJZ">https://godbolt.org/z/24MgJZ</a>
Clang should be detecting use of co_await within a catch block and raising a
compile-error that indicates this is not allowed.</pre>
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