From 429e989b695fca2811151e83afea55aacf2b25c7 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Wed, 17 Sep 2025 14:40:32 -0500
Subject: [PATCH] [core] Make StringRef convertToJson inline to save 250+ bytes
 flash (#10751)

---
 esphome/core/string_ref.cpp | 12 ------------
 esphome/core/string_ref.h   |  2 +-
 2 files changed, 1 insertion(+), 13 deletions(-)
 delete mode 100644 esphome/core/string_ref.cpp

diff --git a/esphome/core/string_ref.cpp b/esphome/core/string_ref.cpp
deleted file mode 100644
index ce1e33cbb7..0000000000
--- a/esphome/core/string_ref.cpp
+++ /dev/null
@@ -1,12 +0,0 @@
-#include "string_ref.h"
-
-namespace esphome {
-
-#ifdef USE_JSON
-
-// NOLINTNEXTLINE(readability-identifier-naming)
-void convertToJson(const StringRef &src, JsonVariant dst) { dst.set(src.c_str()); }
-
-#endif  // USE_JSON
-
-}  // namespace esphome
diff --git a/esphome/core/string_ref.h b/esphome/core/string_ref.h
index c4320107e3..efaa17181d 100644
--- a/esphome/core/string_ref.h
+++ b/esphome/core/string_ref.h
@@ -130,7 +130,7 @@ inline std::string operator+(const StringRef &lhs, const char *rhs) {
 
 #ifdef USE_JSON
 // NOLINTNEXTLINE(readability-identifier-naming)
-void convertToJson(const StringRef &src, JsonVariant dst);
+inline void convertToJson(const StringRef &src, JsonVariant dst) { dst.set(src.c_str()); }
 #endif  // USE_JSON
 
 }  // namespace esphome