Add a stub for StaticJsonDocument

src/ArduinoJson/Polyfills/attributes.hpp

@@ -9,16 +9,32 @@
 #  define FORCE_INLINE  // __forceinline causes C4714 when returning std::string
 #  define NO_INLINE __declspec(noinline)
 
+#  ifndef ARDUINOJSON_DEPRECATED
+#    define ARDUINOJSON_DEPRECATED(msg) __declspec(deprecated(msg))
+#  endif
+
 #elif defined(__GNUC__)  // GCC or Clang
 
 #  define FORCE_INLINE __attribute__((always_inline))
 #  define NO_INLINE __attribute__((noinline))
 
+#  ifndef ARDUINOJSON_DEPRECATED
+#    if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
+#      define ARDUINOJSON_DEPRECATED(msg) __attribute__((deprecated(msg)))
+#    else
+#      define ARDUINOJSON_DEPRECATED(msg) __attribute__((deprecated))
+#    endif
+#  endif
+
 #else  // Other compilers
 
 #  define FORCE_INLINE
 #  define NO_INLINE
 
+#  ifndef ARDUINOJSON_DEPRECATED
+#    define ARDUINOJSON_DEPRECATED(msg)
+#  endif
+
 #endif
 
 #if defined(__has_attribute)

src/ArduinoJson/compatibility.hpp

@@ -4,6 +4,8 @@
 //
 // clang-format off
 
+#include <ArduinoJson/Namespace.hpp>
+
 #ifdef __GNUC__
 
 #define ARDUINOJSON_PRAGMA(x) _Pragma(#x)
@@ -23,3 +25,21 @@
 #define ARDUINOJSON_NAMESPACE _Pragma ("GCC warning \"ARDUINOJSON_NAMESPACE is deprecated, use ArduinoJson instead\"") ArduinoJson
 
 #endif
+
+// clang-format on
+
+ARDUINOJSON_BEGIN_PUBLIC_NAMESPACE
+
+// DEPRECATED: use JsonDocument instead
+template <size_t N>
+class ARDUINOJSON_DEPRECATED("use JsonDocument instead") StaticJsonDocument
+    : public JsonDocument {
+ public:
+  using JsonDocument::JsonDocument;
+
+  size_t capacity() const {
+    return N;
+  }
+};
+
+ARDUINOJSON_END_PUBLIC_NAMESPACE