refactor: use string_view for RPC named argument values

Minimize copying RPC named argument values when calling .substr() by
using std::string_view instead of std::string.

1 files changed, 2 insertions, 3 deletions

diff --git a/src/univalue/include/univalue.h b/src/univalue/include/univalue.h
index 16853260b8..d501c3fb69 100644
--- a/src/univalue/include/univalue.h
+++ b/src/univalue/include/univalue.h
@@ -12,6 +12,7 @@
 #include <map>
 #include <stdexcept>
 #include <string>
+#include <string_view>
 #include <type_traits>
 #include <vector>
 
@@ -95,9 +96,7 @@ public:
 
     bool read(const char *raw, size_t len);
     bool read(const char *raw) { return read(raw, strlen(raw)); }
-    bool read(const std::string& rawStr) {
-        return read(rawStr.data(), rawStr.size());
-    }
+    bool read(std::string_view raw) { return read(raw.data(), raw.size()); }
 
 private:
     UniValue::VType typ;