Add stubs for JSON_ARRAY_SIZE, JSON_OBJECT_SIZE, and JSON_STRING_SIZE

extras/tests/Deprecated/CMakeLists.txt

@@ -4,7 +4,7 @@
 
 if(CMAKE_CXX_COMPILER_ID MATCHES "(GNU|Clang)")
 	add_compile_options(
-		-Wno-deprecated-declarations
+		-w
 	)
 endif()
 
@@ -20,6 +20,7 @@ add_executable(DeprecatedTests
 	createNestedObject.cpp
 	BasicJsonDocument.cpp
 	DynamicJsonDocument.cpp
+	macros.cpp
 	memoryUsage.cpp
 	shallowCopy.cpp
 	StaticJsonDocument.cpp

extras/tests/Deprecated/macros.cpp

@@ -0,0 +1,18 @@
+// ArduinoJson - https://arduinojson.org
+// Copyright © 2014-2023, Benoit BLANCHON
+// MIT License
+
+#include <ArduinoJson.h>
+#include <catch.hpp>
+
+TEST_CASE("JSON_ARRAY_SIZE") {
+  REQUIRE(JSON_ARRAY_SIZE(10) == ArduinoJson::detail::sizeofArray(10));
+}
+
+TEST_CASE("JSON_OBJECT_SIZE") {
+  REQUIRE(JSON_OBJECT_SIZE(10) == ArduinoJson::detail::sizeofObject(10));
+}
+
+TEST_CASE("JSON_STRING_SIZE") {
+  REQUIRE(JSON_STRING_SIZE(10) == ArduinoJson::detail::sizeofString(10));
+}

src/ArduinoJson/compatibility.hpp

@@ -24,6 +24,26 @@
 
 #define ARDUINOJSON_NAMESPACE _Pragma ("GCC warning \"ARDUINOJSON_NAMESPACE is deprecated, use ArduinoJson instead\"") ArduinoJson
 
+// DEPRECATED: you don't need to compute the size anymore
+#define JSON_ARRAY_SIZE(N) _Pragma ("GCC warning \"JSON_ARRAY_SIZE is deprecated, you don't need to compute the size anymore\"") (ArduinoJson::detail::sizeofArray(N))
+
+// DEPRECATED: you don't need to compute the size anymore
+#define JSON_OBJECT_SIZE(N) _Pragma ("GCC warning \"JSON_OBJECT_SIZE is deprecated, you don't need to compute the size anymore\"") (ArduinoJson::detail::sizeofObject(N))
+
+// DEPRECATED: you don't need to compute the size anymore
+#define JSON_STRING_SIZE(N) _Pragma ("GCC warning \"JSON_STRING_SIZE is deprecated, you don't need to compute the size anymore\"") (ArduinoJson::detail::sizeofString(N))
+
+#else
+
+// DEPRECATED: you don't need to compute the size anymore
+#define JSON_ARRAY_SIZE(N) (ArduinoJson::detail::sizeofArray(N))
+
+// DEPRECATED: you don't need to compute the size anymore
+#define JSON_OBJECT_SIZE(N) (ArduinoJson::detail::sizeofObject(N))
+
+// DEPRECATED: you don't need to compute the size anymore
+#define JSON_STRING_SIZE(N) (ArduinoJson::detail::sizeofString(N))
+
 #endif
 
 // clang-format on