refactor: follow capy's context-based renames

doc/modules/ROOT/pages/2.guide/2n.extending.adoc

@@ -27,7 +27,7 @@ struct MyRequestBody
 {
     std::optional<std::string>   content_type()   const;
     std::optional<std::uint64_t> content_length() const;
-    capy::io_task<>              write(http::any_buffer_sink& sink) const;
+    capy::task<capy::results<>>  write(http::any_buffer_sink& sink) const;
 };
 ----
 
@@ -62,7 +62,7 @@ auto [ec, r] = co_await client.post("https://example.com/post")
 To read a response into a value with cpp:request_builder::as<T>[as<T>] or
 cpp:request_builder::try_as<T>[try_as<T>], provide a `tag_invoke` overload
 taking cpp:body_to_tag<T>[] and the cpp:response[]. It returns a
-`capy::io_task<T>` that reads the body and converts it:
+`capy::task<capy::results<T>>` that reads the body and converts it:
 
 [source,cpp]
 ----
@@ -94,7 +94,7 @@ declares the extra parameter after the cpp:response[]:
 
 [source,cpp]
 ----
-capy::io_task<std::filesystem::path>
+capy::task<capy::results<std::filesystem::path>>
 tag_invoke(
     burl::body_to_tag<std::filesystem::path>,
     burl::response& resp,

doc/modules/ROOT/pages/testing.adoc

@@ -79,7 +79,7 @@ for the client to speak HTTP over:
 ----
 burl::client::config cfg;
 cfg.connect_handler =
-    [](urls::url_view) -> capy::io_task<capy::any_stream>
+    [](urls::url_view) -> capy::task<capy::results<capy::any_stream>>
     {
         auto [a, b] = capy::test::make_stream_pair();
         // drive b from the test as the "server"; hand a to the client

example/nlohmann_json.cpp

@@ -49,7 +49,7 @@ tag_invoke(burl::body_from_tag<nlohmann::json>, const nlohmann::json& value)
             return text_.size();
         }
 
-        capy::io_task<>
+        capy::task<capy::results<>>
         write(http::any_buffer_sink& sink) const
         {
             auto [ec, n] = co_await sink.write_eof(capy::make_buffer(text_));
@@ -61,7 +61,7 @@ tag_invoke(burl::body_from_tag<nlohmann::json>, const nlohmann::json& value)
 // end::body_from[]
 
 // tag::body_to[]
-capy::io_task<nlohmann::json>
+capy::task<capy::results<nlohmann::json>>
 tag_invoke(burl::body_to_tag<nlohmann::json>, burl::response& resp)
 {
     // Try the parser's in-place buffer first; it is allocation-free

include/boost/burl/any_request_body.hpp

@@ -13,7 +13,8 @@
 #include <boost/burl/detail/config.hpp>
 #include <boost/burl/request_body.hpp>
 
-#include <boost/capy/io_task.hpp>
+#include <boost/capy/results.hpp>
+#include <boost/capy/task.hpp>
 #include <boost/http/io/any_buffer_sink.hpp>
 
 #include <cstdint>
@@ -58,7 +59,7 @@ class any_request_body
         virtual std::optional<std::uint64_t>
         content_length() const = 0;
 
-        virtual capy::io_task<>
+        virtual capy::task<capy::results<>>
         write(http::any_buffer_sink& sink) const = 0;
     };
 
@@ -84,7 +85,7 @@ class any_request_body
             return body.content_length();
         }
 
-        capy::io_task<>
+        capy::task<capy::results<>>
         write(http::any_buffer_sink& sink) const override
         {
             return body.write(sink);
@@ -214,7 +215,7 @@ class any_request_body
 
         @return An awaitable yielding `(error_code)`.
     */
-    capy::io_task<>
+    capy::task<capy::results<>>
     write(http::any_buffer_sink& sink) const
     {
         return impl_->write(sink);

include/boost/burl/client.hpp

@@ -19,7 +19,8 @@
 
 #include <boost/capy/ex/executor_ref.hpp>
 #include <boost/capy/io/any_stream.hpp>
-#include <boost/capy/io_task.hpp>
+#include <boost/capy/results.hpp>
+#include <boost/capy/task.hpp>
 #include <boost/corosio/endpoint.hpp>
 #include <boost/corosio/tls_context.hpp>
 #include <boost/url/url.hpp>
@@ -298,7 +299,8 @@ class client
             @par Example
             @code
             cfg.connect_handler =
-                [](urls::url_view) -> capy::io_task<capy::any_stream>
+                [](urls::url_view)
+                    -> capy::task<capy::results<capy::any_stream>>
                 {
                     auto [a, b] = capy::test::make_stream_pair();
                     // drive b from the test; hand a to the client
@@ -307,7 +309,7 @@ class client
             @endcode
         */
         std::function<
-            capy::io_task<capy::any_stream>(urls::url_view url)>
+            capy::task<capy::results<capy::any_stream>>(urls::url_view url)>
                 connect_handler;
     };
 
@@ -581,12 +583,12 @@ class client
         @see @ref request_builder::send.
     */
     BOOST_BURL_DECL
-    capy::io_task<response>
+    capy::task<capy::results<response>>
     execute(burl::request request);
 
 private:
     BOOST_BURL_DECL
-    capy::io_task<response>
+    capy::task<capy::results<response>>
     execute_impl(
         burl::request request,
         std::optional<config::clock::time_point> deadline);

include/boost/burl/conversion.hpp

@@ -59,7 +59,7 @@ struct body_from_tag
     object of type `T`. They have the form:
 
     @code
-    capy::io_task<T>
+    capy::task<capy::results<T>>
     tag_invoke(body_to_tag<T>, response& resp, Args... args);
     @endcode
 
@@ -70,7 +70,7 @@ struct body_from_tag
     @par Example
     Adding support for a user-defined type:
     @code
-    capy::io_task<my_type>
+    capy::task<capy::results<my_type>>
     tag_invoke(burl::body_to_tag<my_type>, burl::response& resp)
     {
         auto [ec, sv] = co_await resp.try_as_view();

include/boost/burl/detail/connection_pool.hpp

@@ -14,7 +14,8 @@
 #include <boost/burl/test/fwd.hpp>
 #include <boost/capy/buffers.hpp>
 #include <boost/capy/detail/buffer_array.hpp>
-#include <boost/capy/io_task.hpp>
+#include <boost/capy/results.hpp>
+#include <boost/capy/task.hpp>
 
 #include <chrono>
 #include <cstddef>
@@ -40,14 +41,14 @@ class connection
 
 public:
     template<capy::MutableBufferSequence MB>
-    capy::io_task<std::size_t>
+    capy::task<capy::results<std::size_t>>
     read_some(MB buffers)
     {
         return read_some_impl(buffers);
     }
 
     template<capy::ConstBufferSequence CB>
-    capy::io_task<std::size_t>
+    capy::task<capy::results<std::size_t>>
     write_some(CB buffers)
     {
         return write_some_impl(buffers);
@@ -62,22 +63,22 @@ class connection
     virtual bool
     is_open() const noexcept = 0;
 
-    // virtual capy::io_task<>
+    // virtual capy::task<capy::results<>>
     // shutdown() = 0;
 
     virtual ~connection() = default;
 
 private:
-    capy::io_task<std::size_t>
+    capy::task<capy::results<std::size_t>>
     read_some_impl(capy::detail::mutable_buffer_array<8>);
 
-    capy::io_task<std::size_t>
+    capy::task<capy::results<std::size_t>>
     write_some_impl(capy::detail::const_buffer_array<8>);
 
-    virtual capy::io_task<std::size_t>
+    virtual capy::task<capy::results<std::size_t>>
     do_read_some(std::span<capy::mutable_buffer const> buffers) = 0;
 
-    virtual capy::io_task<std::size_t>
+    virtual capy::task<capy::results<std::size_t>>
     do_write_some(std::span<capy::const_buffer const> buffers) = 0;
 };
 
@@ -94,14 +95,14 @@ class pooled_connection
     pooled_connection() = default;
 
     template<capy::MutableBufferSequence MB>
-    capy::io_task<std::size_t>
+    capy::task<capy::results<std::size_t>>
     read_some(MB buffers)
     {
         return conn_->read_some(std::move(buffers));
     }
 
     template<capy::ConstBufferSequence CB>
-    capy::io_task<std::size_t>
+    capy::task<capy::results<std::size_t>>
     write_some(CB buffers)
     {
         return conn_->write_some(std::move(buffers));

include/boost/burl/file.hpp

@@ -15,7 +15,8 @@
 #include <boost/burl/detail/config.hpp>
 #include <boost/burl/response.hpp>
 
-#include <boost/capy/io_task.hpp>
+#include <boost/capy/results.hpp>
+#include <boost/capy/task.hpp>
 #include <boost/corosio/file_base.hpp>
 
 #include <filesystem>
@@ -78,7 +79,7 @@ tag_invoke(body_from_tag<std::filesystem::path>, std::filesystem::path path);
     `(error_code,std::filesystem::path)`.
 */
 BOOST_BURL_DECL
-capy::io_task<std::filesystem::path>
+capy::task<capy::results<std::filesystem::path>>
 tag_invoke(
     body_to_tag<std::filesystem::path>,
     response& resp,

include/boost/burl/json.hpp

@@ -15,7 +15,8 @@
 #include <boost/burl/detail/config.hpp>
 #include <boost/burl/response.hpp>
 
-#include <boost/capy/io_task.hpp>
+#include <boost/capy/results.hpp>
+#include <boost/capy/task.hpp>
 #include <boost/json/value.hpp>
 
 namespace boost
@@ -64,7 +65,7 @@ tag_invoke(body_from_tag<json::value>, json::value value);
     `(error_code,json::value)`.
 */
 BOOST_BURL_DECL
-capy::io_task<json::value>
+capy::task<capy::results<json::value>>
 tag_invoke(body_to_tag<json::value>, response& resp);
 
 /** Create a request body from a JSON object.
@@ -110,7 +111,7 @@ tag_invoke(body_from_tag<json::object>, json::object value);
     `(error_code,json::object)`.
 */
 BOOST_BURL_DECL
-capy::io_task<json::object>
+capy::task<capy::results<json::object>>
 tag_invoke(body_to_tag<json::object>, response& resp);
 
 /** Create a request body from a JSON array.
@@ -156,7 +157,7 @@ tag_invoke(body_from_tag<json::array>, json::array value);
     `(error_code,json::array)`.
 */
 BOOST_BURL_DECL
-capy::io_task<json::array>
+capy::task<capy::results<json::array>>
 tag_invoke(body_to_tag<json::array>, response& resp);
 
 /** Create a request body from a JSON string.
@@ -202,7 +203,7 @@ tag_invoke(body_from_tag<json::string>, json::string value);
     `(error_code,json::string)`.
 */
 BOOST_BURL_DECL
-capy::io_task<json::string>
+capy::task<capy::results<json::string>>
 tag_invoke(body_to_tag<json::string>, response& resp);
 
 } // namespace burl