refactor: Convert boost::beast::string_view to std::string_view (#6306)

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include/xrpl/beast/rfc2616.h

@@ -11,6 +11,7 @@
 #include <cstddef>
 #include <iterator>
 #include <string>
+#include <string_view>
 #include <vector>
 
 namespace beast::rfc2616 {
@@ -186,7 +187,7 @@ splitCommas(FwdIt first, FwdIt last)
 
 template <class Result = std::vector<std::string>>
 Result
-splitCommas(boost::beast::string_view const& s)
+splitCommas(std::string_view s)
 {
     return splitCommas(s.begin(), s.end());
 }

include/xrpl/config/BasicConfig.h

@@ -2,7 +2,6 @@
 
 #include <xrpl/basics/contract.h>
 
-#include <boost/beast/core/string.hpp>
 #include <boost/lexical_cast.hpp>
 
 #include <algorithm>

include/xrpl/json/Output.h

@@ -1,20 +1,19 @@
 #pragma once
 
-#include <boost/beast/core/string.hpp>
-
 #include <functional>
 #include <string>
+#include <string_view>
 
 namespace json {
 
 class Value;
 
-using Output = std::function<void(boost::beast::string_view const&)>;
+using Output = std::function<void(std::string_view)>;
 
 inline Output
 stringOutput(std::string& s)
 {
-    return [&](boost::beast::string_view const& b) { s.append(b.data(), b.size()); };
+    return [&](std::string_view b) { s.append(b.data(), b.size()); };
 }
 
 /**

include/xrpl/server/detail/BaseWSPeer.h

@@ -25,6 +25,7 @@
 #include <iterator>
 #include <list>
 #include <memory>
+#include <string_view>
 #include <utility>
 #include <vector>
 
@@ -62,8 +63,7 @@ private:
     bool pingActive_ = false;
     boost::beast::websocket::ping_data payload_;
     error_code ec_;
-    std::function<void(boost::beast::websocket::frame_type, boost::beast::string_view)>
-        controlCallback_;
+    std::function<void(boost::beast::websocket::frame_type, std::string_view)> controlCallback_;
 
 public:
     template <class Body, class Headers>
@@ -151,7 +151,7 @@ protected:
     onPing(error_code const& ec);
 
     void
-    onPingPong(boost::beast::websocket::frame_type kind, boost::beast::string_view payload);
+    onPingPong(boost::beast::websocket::frame_type kind, std::string_view payload);
 
     void
     onTimer(error_code ec);
@@ -189,9 +189,9 @@ BaseWSPeer<Handler, Impl>::run()
     impl().ws_.set_option(port().pmdOptions);
     // Must manage the control callback memory outside of the `control_callback`
     // function
-    controlCallback_ = [this](
-                           boost::beast::websocket::frame_type kind,
-                           boost::beast::string_view payload) { onPingPong(kind, payload); };
+    controlCallback_ = [this](boost::beast::websocket::frame_type kind, std::string_view payload) {
+        onPingPong(kind, payload);
+    };
     impl().ws_.control_callback(controlCallback_);
     startTimer();
     closeOnTimer_ = true;
@@ -430,11 +430,11 @@ template <class Handler, class Impl>
 void
 BaseWSPeer<Handler, Impl>::onPingPong(
     boost::beast::websocket::frame_type kind,
-    boost::beast::string_view payload)
+    std::string_view payload)
 {
     if (kind == boost::beast::websocket::frame_type::pong)
     {
-        boost::beast::string_view const p(payload_.begin());
+        std::string_view const p(payload_.begin(), payload_.size());
         if (payload == p)
         {
             closeOnTimer_ = false;

src/libxrpl/json/Writer.cpp

@@ -9,6 +9,7 @@
 #include <set>  // IWYU pragma: keep
 #include <stack>
 #include <string>
+#include <string_view>
 #include <utility>
 #include <vector>
 
@@ -87,14 +88,14 @@ public:
     }
 
     void
-    output(boost::beast::string_view const& bytes)
+    output(std::string_view bytes)
     {
         markStarted();
         output_(bytes);
     }
 
     void
-    stringOutput(boost::beast::string_view const& bytes)
+    stringOutput(std::string_view bytes)
     {
         markStarted();
         std::size_t position = 0, writtenUntil = 0;

src/xrpld/overlay/detail/ProtocolVersion.cpp

@@ -16,6 +16,7 @@
 #include <optional>
 #include <ranges>
 #include <string>
+#include <string_view>
 #include <vector>
 
 namespace xrpl {
@@ -52,7 +53,7 @@ to_string(ProtocolVersion const& p)
 }
 
 std::vector<ProtocolVersion>
-parseProtocolVersions(boost::beast::string_view const& value)
+parseProtocolVersions(std::string_view value)
 {
     static boost::regex const kRE(
         "^"                        // start of line
@@ -119,7 +120,7 @@ negotiateProtocolVersion(std::vector<ProtocolVersion> const& versions)
 }
 
 std::optional<ProtocolVersion>
-negotiateProtocolVersion(boost::beast::string_view const& versions)
+negotiateProtocolVersion(std::string_view versions)
 {
     auto const them = parseProtocolVersions(versions);
 

src/xrpld/overlay/detail/ProtocolVersion.h

@@ -1,10 +1,9 @@
 #pragma once
 
-#include <boost/beast/core/string.hpp>
-
 #include <cstdint>
 #include <optional>
 #include <string>
+#include <string_view>
 #include <utility>
 #include <vector>
 
@@ -43,7 +42,7 @@ to_string(ProtocolVersion const& p);
  *       no duplicates and will be sorted in ascending protocol order.
  */
 std::vector<ProtocolVersion>
-parseProtocolVersions(boost::beast::string_view const& s);
+parseProtocolVersions(std::string_view s);
 
 /**
  * Given a list of supported protocol versions, choose the one we prefer.
@@ -55,7 +54,7 @@ negotiateProtocolVersion(std::vector<ProtocolVersion> const& versions);
  * Given a list of supported protocol versions, choose the one we prefer.
  */
 std::optional<ProtocolVersion>
-negotiateProtocolVersion(boost::beast::string_view const& versions);
+negotiateProtocolVersion(std::string_view versions);
 
 /**
  * The list of all the protocol versions we support.

src/xrpld/rpc/detail/ServerHandler.cpp

@@ -264,7 +264,7 @@ ServerHandler::onHandoff(
 static inline json::Output
 makeOutput(Session& session)
 {
-    return [&](boost::beast::string_view const& b) { session.write(b.data(), b.size()); };
+    return [&](std::string_view b) { session.write(b.data(), b.size()); };
 }
 
 static std::map<std::string, std::string>
@@ -564,11 +564,11 @@ ServerHandler::processSession(
         makeOutput(*session),
         coro,
         forwardedFor(session->request()),
-        [&] {
+        [&] -> std::string_view {
             auto const iter = session->request().find("X-User");
             if (iter != session->request().end())
                 return iter->value();
-            return boost::beast::string_view{};
+            return {};
         }());
 
     if (beast::rfc2616::isKeepAlive(session->request()))