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[exec.get.compl.sched] Rename completion-tag to completion-fn-tag and reorder text. #8818

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tkoeppe merged 1 commit into from
Mar 27, 2026
+19 −15
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[exec.get.compl.sched] Rename completion-tag to completion-fn-tag and reorder text. #8818

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34 changes: 19 additions & 15 deletions source/exec.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -1030,34 +1030,38 @@
\rSec2[exec.get.compl.sched]{\tcode{execution::get_completion_scheduler}}

\pnum
\tcode{get_completion_scheduler<\exposid{completion-tag>}} obtains
The name \tcode{get_completion_scheduler} denotes a query object template.

\pnum
Let \exposid{completion-fn} be a completion function\iref{exec.async.ops};
let \exposid{completion-fn-tag} be
the associated completion tag of \exposid{completion-fn};
let \tcode{args} be a pack of subexpressions; and
let \tcode{sndr} be a subexpression
such that \tcode{\libconcept{sender}<decltype((sndr))>} is \tcode{true} and
\tcode{get_completion_scheduler<\exposid{completion-fn-tag}>(get_env(sndr))}
is well-formed and denotes a scheduler \tcode{sch}.

\pnum
\tcode{get_completion_scheduler<\exposid{completion-fn-tag>}} obtains
the completion scheduler associated with a completion tag
from a sender's attributes.

\pnum
The name \tcode{get_completion_scheduler} denotes a query object template.
For a subexpression \tcode{q},
the expression \tcode{get_completion_scheduler<\exposid{completion-tag}>(q)}
is ill-formed if \exposid{completion-tag} is not one of
the expression \tcode{get_completion_scheduler<\exposid{completion-fn-tag}>(q)}
is ill-formed if \exposid{completion-fn-tag} is not one of
\tcode{set_value_t}, \tcode{set_error_t}, or \tcode{set_stopped_t}.
Otherwise, \tcode{get_completion_scheduler<\exposid{completion-tag}>(q)}
Otherwise, \tcode{get_completion_scheduler<\exposid{completion-fn-tag}>(q)}
is expression-equivalent to
\begin{codeblock}
@\exposid{MANDATE-NOTHROW}@(@\exposid{AS-CONST}@(q).query(get_completion_scheduler<@\exposid{completion-tag}@>))
@\exposid{MANDATE-NOTHROW}@(@\exposid{AS-CONST}@(q).query(get_completion_scheduler<@\exposid{completion-fn-tag}@>))
\end{codeblock}
\mandates
If the expression above is well-formed,
its type satisfies \libconcept{scheduler}.

\pnum
Let \exposid{completion-fn} be a completion function\iref{exec.async.ops};
let \exposid{completion-tag} be
the associated completion tag of \exposid{completion-fn};
let \tcode{args} be a pack of subexpressions; and
let \tcode{sndr} be a subexpression
such that \tcode{\libconcept{sender}<decltype((sndr))>} is \tcode{true} and
\tcode{get_completion_scheduler<\exposid{completion-tag}>(get_env(sndr))}
is well-formed and denotes a scheduler \tcode{sch}.
If an asynchronous operation
created by connecting \tcode{sndr} with a receiver \tcode{rcvr}
causes the evaluation of \tcode{\exposid{completion-fn}(rcvr, args...)},
Expand All @@ -1067,7 +1071,7 @@

\pnum
The expression
\tcode{forwarding_query(get_completion_scheduler<\exposid{completion-tag}>)}
\tcode{forwarding_query(get_completion_scheduler<\exposid{completion-fn-tag}>)}
is a core constant expression and has value \tcode{true}.

\rSec2[exec.get.await.adapt]{\tcode{execution::get_await_completion_adaptor}}
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