[execution.syn] Reorder entries to match subclause order

Fixes NB US 201-322 (C++26 CD).

Author: jensmaurer

source/exec.tex

@@ -484,14 +484,6 @@
   template<class T>
     using @\libglobal{env_of_t}@ = decltype(get_env(declval<T>()));
 
-  // \ref{exec.prop}, class template \tcode{prop}
-  template<class QueryTag, class ValueType>
-    struct prop;
-
-  // \ref{exec.env}, class template \tcode{env}
-  template<@\exposconcept{queryable}@... Envs>
-    struct env;
-
   // \ref{exec.domain.default}, execution domains
   struct default_domain;
 
@@ -594,6 +586,14 @@
     constexpr decltype(auto) apply_sender(
       Domain dom, Tag, Sndr&& sndr, Args&&... args) noexcept(@\seebelow@);
 
+  // \ref{exec.getcomplsigs}, get completion signatures
+  template<class Sndr, class... Env>
+    consteval auto get_completion_signatures() -> @\exposconcept{valid-completion-signatures}@ auto;
+
+  template<class Sndr, class... Env>
+      requires @\libconcept{sender_in}@<Sndr, Env...>
+    using completion_signatures_of_t = decltype(get_completion_signatures<Sndr, Env...>());
+
   // \ref{exec.connect}, the connect sender algorithm
   struct @\libglobal{connect_t}@;
   inline constexpr connect_t @\libglobal{connect}@{};
@@ -664,6 +664,21 @@
   inline constexpr stopped_as_error_t @\libglobal{stopped_as_error}@{};
   inline constexpr associate_t @\libglobal{associate}@{};
   inline constexpr spawn_future_t @\libglobal{spawn_future}@{};
+}
+
+namespace std::this_thread {
+  // \ref{exec.consumers}, consumers
+  struct @\libglobal{sync_wait_t}@ { @\unspec@ };
+  struct @\libglobal{sync_wait_with_variant_t}@ { @\unspec@ };
+
+  inline constexpr sync_wait_t @\libglobal{sync_wait}@{};
+  inline constexpr sync_wait_with_variant_t @\libglobal{sync_wait_with_variant}@{};
+}
+
+namespace std::execution {
+  // \ref{exec.consumers}, consumers
+  struct @\libglobal{spawn_t}@ { @\unspec@ };
+  inline constexpr spawn_t spawn{};
 
   // \ref{exec.cmplsig}, completion signatures
   template<class Fn>
@@ -677,31 +692,16 @@
 
   struct dependent_sender_error : exception {};
 
-  // \ref{exec.getcomplsigs}, get completion signatures
-  template<class Sndr, class... Env>
-    consteval auto get_completion_signatures() -> @\exposconcept{valid-completion-signatures}@ auto;
+  // \ref{exec.prop}, class template \tcode{prop}
+  template<class QueryTag, class ValueType>
+    struct prop;
 
-  template<class Sndr, class... Env>
-      requires @\libconcept{sender_in}@<Sndr, Env...>
-    using completion_signatures_of_t = decltype(get_completion_signatures<Sndr, Env...>());
+  // \ref{exec.env}, class template \tcode{env}
+  template<@\exposconcept{queryable}@... Envs>
+    struct env;
 
   // \ref{exec.run.loop}, run_loop
   class run_loop;
-}
-
-namespace std::this_thread {
-  // \ref{exec.consumers}, consumers
-  struct @\libglobal{sync_wait_t}@ { @\unspec@ };
-  struct @\libglobal{sync_wait_with_variant_t}@ { @\unspec@ };
-
-  inline constexpr sync_wait_t @\libglobal{sync_wait}@{};
-  inline constexpr sync_wait_with_variant_t @\libglobal{sync_wait_with_variant}@{};
-}
-
-namespace std::execution {
-  // \ref{exec.consumers}, consumers
-  struct @\libglobal{spawn_t}@ { @\unspec@ };
-  inline constexpr spawn_t spawn{};
 
   // \ref{exec.as.awaitable}, coroutine utility \tcode{as_awaitable}
   struct @\libglobal{as_awaitable_t}@ { @\unspec@ };
@@ -711,33 +711,6 @@
   template<@\exposconcept{class-type}@ Promise>
     struct with_awaitable_senders;
 
-  // \ref{exec.scope.concepts}, scope concepts
-  template<class Token>
-    concept @\libconcept{scope_token}@ = @\seebelow@;
-
-  // \ref{exec.scope.simple.counting}, simple counting scope
-  class simple_counting_scope;
-
-  // \ref{exec.scope.counting}, counting scope
-  class counting_scope;
-}
-
-namespace std::execution {
-  // \ref{exec.par.scheduler}, parallel scheduler
-  class @\libglobal{parallel_scheduler}@;
-  parallel_scheduler get_parallel_scheduler();
-}
-
-// \ref{exec.sysctxrepl}, namespace \tcode{system_context_replaceability}
-namespace std::execution::@\libglobal{system_context_replaceability}@ {
-  struct receiver_proxy;
-  struct bulk_item_receiver_proxy;
-  struct parallel_scheduler_backend;
-
-  shared_ptr<parallel_scheduler_backend> query_parallel_scheduler_backend();
-}
-
-namespace std::execution {
   // \ref{exec.affine.on}, coroutine utility \tcode{affine_on}
   struct @\libglobal{affine_on_t}@ { @\unspec@ };
   inline constexpr affine_on_t @\libglobal{affine_on}@{};
@@ -767,6 +740,29 @@
   // \ref{exec.task}, class template \tcode{task}
   template<class T, class Environment>
     class @\libglobal{task}@;
+
+  // \ref{exec.scope.concepts}, scope concepts
+  template<class Token>
+    concept @\libconcept{scope_token}@ = @\seebelow@;
+
+  // \ref{exec.scope.simple.counting}, simple counting scope
+  class simple_counting_scope;
+
+  // \ref{exec.scope.counting}, counting scope
+  class counting_scope;
+
+  // \ref{exec.par.scheduler}, parallel scheduler
+  class @\libglobal{parallel_scheduler}@;
+  parallel_scheduler get_parallel_scheduler();
+
+  // \ref{exec.sysctxrepl}, namespace \tcode{system_context_replaceability}
+  namespace @\libglobal{system_context_replaceability}@ {
+    struct receiver_proxy;
+    struct bulk_item_receiver_proxy;
+    struct parallel_scheduler_backend;
+
+    shared_ptr<parallel_scheduler_backend> query_parallel_scheduler_backend();
+  }
 }
 \end{codeblock}