Update flatbuffers: 2.0.8 ==> 24.3.25

3rdparty/README.md

@@ -62,7 +62,7 @@
 
 ## flatbuffers
 - [![Upstream](https://img.shields.io/github/v/release/google/flatbuffers?label=Upstream)](https://github.com/google/flatbuffers)
-- Version: 2.0.8
+- Version: 24.3.25
 - License: Apache-2.0
 
 ## {fmt}

3rdparty/flatbuffers/array.h

@@ -17,6 +17,9 @@
 #ifndef FLATBUFFERS_ARRAY_H_
 #define FLATBUFFERS_ARRAY_H_
 
+#include <cstdint>
+#include <memory>
+
 #include "flatbuffers/base.h"
 #include "flatbuffers/stl_emulation.h"
 #include "flatbuffers/vector.h"
@@ -35,7 +38,7 @@ template<typename T, uint16_t length> class Array {
  public:
   typedef uint16_t size_type;
   typedef typename IndirectHelper<IndirectHelperType>::return_type return_type;
-  typedef VectorIterator<T, return_type> const_iterator;
+  typedef VectorConstIterator<T, return_type, uoffset_t> const_iterator;
   typedef VectorReverseIterator<const_iterator> const_reverse_iterator;
 
   // If T is a LE-scalar or a struct (!scalar_tag::value).
@@ -156,11 +159,13 @@ template<typename T, uint16_t length> class Array {
 
 // Specialization for Array[struct] with access using Offset<void> pointer.
 // This specialization used by idl_gen_text.cpp.
-template<typename T, uint16_t length> class Array<Offset<T>, length> {
+template<typename T, uint16_t length, template<typename> class OffsetT>
+class Array<OffsetT<T>, length> {
   static_assert(flatbuffers::is_same<T, void>::value, "unexpected type T");
 
  public:
   typedef const void *return_type;
+  typedef uint16_t size_type;
 
   const uint8_t *Data() const { return data_; }
 
@@ -238,6 +243,14 @@ const Array<E, length> &CastToArrayOfEnum(const T (&arr)[length]) {
   return *reinterpret_cast<const Array<E, length> *>(arr);
 }
 
+template<typename T, uint16_t length>
+bool operator==(const Array<T, length> &lhs,
+                const Array<T, length> &rhs) noexcept {
+  return std::addressof(lhs) == std::addressof(rhs) ||
+         (lhs.size() == rhs.size() &&
+          std::memcmp(lhs.Data(), rhs.Data(), rhs.size() * sizeof(T)) == 0);
+}
+
 }  // namespace flatbuffers
 
 #endif  // FLATBUFFERS_ARRAY_H_

3rdparty/flatbuffers/base.h

@@ -32,7 +32,7 @@
 #include <cstdlib>
 #include <cstring>
 
-#if defined(ARDUINO) && !defined(ARDUINOSTL_M_H)
+#if defined(ARDUINO) && !defined(ARDUINOSTL_M_H) && defined(__AVR__)
   #include <utility.h>
 #else
   #include <utility>
@@ -43,6 +43,7 @@
 #include <vector>
 #include <set>
 #include <algorithm>
+#include <limits>
 #include <iterator>
 #include <memory>
 
@@ -138,9 +139,9 @@
   #endif
 #endif // !defined(FLATBUFFERS_LITTLEENDIAN)
 
-#define FLATBUFFERS_VERSION_MAJOR 2
-#define FLATBUFFERS_VERSION_MINOR 0
-#define FLATBUFFERS_VERSION_REVISION 8
+#define FLATBUFFERS_VERSION_MAJOR 24
+#define FLATBUFFERS_VERSION_MINOR 3
+#define FLATBUFFERS_VERSION_REVISION 25
 #define FLATBUFFERS_STRING_EXPAND(X) #X
 #define FLATBUFFERS_STRING(X) FLATBUFFERS_STRING_EXPAND(X)
 namespace flatbuffers {
@@ -154,7 +155,7 @@ namespace flatbuffers {
   #define FLATBUFFERS_FINAL_CLASS final
   #define FLATBUFFERS_OVERRIDE override
   #define FLATBUFFERS_EXPLICIT_CPP11 explicit
-  #define FLATBUFFERS_VTABLE_UNDERLYING_TYPE : flatbuffers::voffset_t
+  #define FLATBUFFERS_VTABLE_UNDERLYING_TYPE : ::flatbuffers::voffset_t
 #else
   #define FLATBUFFERS_FINAL_CLASS
   #define FLATBUFFERS_OVERRIDE
@@ -233,12 +234,17 @@ namespace flatbuffers {
       }
       #define FLATBUFFERS_HAS_STRING_VIEW 1
     // Check for absl::string_view
-    #elif __has_include("absl/strings/string_view.h")
-      #include "absl/strings/string_view.h"
-      namespace flatbuffers {
-        typedef absl::string_view string_view;
-      }
-      #define FLATBUFFERS_HAS_STRING_VIEW 1
+    #elif __has_include("absl/strings/string_view.h") && \
+          __has_include("absl/base/config.h") && \
+          (__cplusplus >= 201411)
+      #include "absl/base/config.h"
+      #if !defined(ABSL_USES_STD_STRING_VIEW)
+        #include "absl/strings/string_view.h"
+        namespace flatbuffers {
+          typedef absl::string_view string_view;
+        }
+        #define FLATBUFFERS_HAS_STRING_VIEW 1
+      #endif
     #endif
   #endif // __has_include
 #endif // !FLATBUFFERS_HAS_STRING_VIEW
@@ -273,20 +279,22 @@ namespace flatbuffers {
 #endif  // !FLATBUFFERS_LOCALE_INDEPENDENT
 
 // Suppress Undefined Behavior Sanitizer (recoverable only). Usage:
-// - __suppress_ubsan__("undefined")
-// - __suppress_ubsan__("signed-integer-overflow")
+// - FLATBUFFERS_SUPPRESS_UBSAN("undefined")
+// - FLATBUFFERS_SUPPRESS_UBSAN("signed-integer-overflow")
 #if defined(__clang__) && (__clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >=7))
-  #define __suppress_ubsan__(type) __attribute__((no_sanitize(type)))
+  #define FLATBUFFERS_SUPPRESS_UBSAN(type) __attribute__((no_sanitize(type)))
 #elif defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 409)
-  #define __suppress_ubsan__(type) __attribute__((no_sanitize_undefined))
+  #define FLATBUFFERS_SUPPRESS_UBSAN(type) __attribute__((no_sanitize_undefined))
 #else
-  #define __suppress_ubsan__(type)
+  #define FLATBUFFERS_SUPPRESS_UBSAN(type)
 #endif
 
-// This is constexpr function used for checking compile-time constants.
-// Avoid `#pragma warning(disable: 4127) // C4127: expression is constant`.
-template<typename T> FLATBUFFERS_CONSTEXPR inline bool IsConstTrue(T t) {
-  return !!t;
+namespace flatbuffers {
+  // This is constexpr function used for checking compile-time constants.
+  // Avoid `#pragma warning(disable: 4127) // C4127: expression is constant`.
+  template<typename T> FLATBUFFERS_CONSTEXPR inline bool IsConstTrue(T t) {
+    return !!t;
+  }
 }
 
 // Enable C++ attribute [[]] if std:c++17 or higher.
@@ -318,9 +326,11 @@ namespace flatbuffers {
 // Also, using a consistent offset type maintains compatibility of serialized
 // offset values between 32bit and 64bit systems.
 typedef uint32_t uoffset_t;
+typedef uint64_t uoffset64_t;
 
 // Signed offsets for references that can go in both directions.
 typedef int32_t soffset_t;
+typedef int64_t soffset64_t;
 
 // Offset/index used in v-tables, can be changed to uint8_t in
 // format forks to save a bit of space if desired.
@@ -329,7 +339,8 @@ typedef uint16_t voffset_t;
 typedef uintmax_t largest_scalar_t;
 
 // In 32bits, this evaluates to 2GB - 1
-#define FLATBUFFERS_MAX_BUFFER_SIZE ((1ULL << (sizeof(::flatbuffers::soffset_t) * 8 - 1)) - 1)
+#define FLATBUFFERS_MAX_BUFFER_SIZE std::numeric_limits<::flatbuffers::soffset_t>::max()
+#define FLATBUFFERS_MAX_64_BUFFER_SIZE std::numeric_limits<::flatbuffers::soffset64_t>::max()
 
 // The minimum size buffer that can be a valid flatbuffer.
 // Includes the offset to the root table (uoffset_t), the offset to the vtable
@@ -352,7 +363,6 @@ inline bool VerifyAlignmentRequirements(size_t align, size_t min_align = 1) {
 }
 
 #if defined(_MSC_VER)
-  #pragma warning(disable: 4351) // C4351: new behavior: elements of array ... will be default initialized
   #pragma warning(push)
   #pragma warning(disable: 4127) // C4127: conditional expression is constant
 #endif
@@ -413,7 +423,7 @@ template<typename T> T EndianScalar(T t) {
 
 template<typename T>
 // UBSAN: C++ aliasing type rules, see std::bit_cast<> for details.
-__suppress_ubsan__("alignment")
+FLATBUFFERS_SUPPRESS_UBSAN("alignment")
 T ReadScalar(const void *p) {
   return EndianScalar(*reinterpret_cast<const T *>(p));
 }
@@ -427,13 +437,13 @@ T ReadScalar(const void *p) {
 
 template<typename T>
 // UBSAN: C++ aliasing type rules, see std::bit_cast<> for details.
-__suppress_ubsan__("alignment")
+FLATBUFFERS_SUPPRESS_UBSAN("alignment")
 void WriteScalar(void *p, T t) {
   *reinterpret_cast<T *>(p) = EndianScalar(t);
 }
 
 template<typename T> struct Offset;
-template<typename T> __suppress_ubsan__("alignment") void WriteScalar(void *p, Offset<T> t) {
+template<typename T> FLATBUFFERS_SUPPRESS_UBSAN("alignment") void WriteScalar(void *p, Offset<T> t) {
   *reinterpret_cast<uoffset_t *>(p) = EndianScalar(t.o);
 }
 
@@ -444,7 +454,7 @@ template<typename T> __suppress_ubsan__("alignment") void WriteScalar(void *p, O
 // Computes how many bytes you'd have to pad to be able to write an
 // "scalar_size" scalar if the buffer had grown to "buf_size" (downwards in
 // memory).
-__suppress_ubsan__("unsigned-integer-overflow")
+FLATBUFFERS_SUPPRESS_UBSAN("unsigned-integer-overflow")
 inline size_t PaddingBytes(size_t buf_size, size_t scalar_size) {
   return ((~buf_size) + 1) & (scalar_size - 1);
 }

3rdparty/flatbuffers/buffer.h

@@ -17,20 +17,41 @@
 #ifndef FLATBUFFERS_BUFFER_H_
 #define FLATBUFFERS_BUFFER_H_
 
+#include <algorithm>
+
 #include "flatbuffers/base.h"
 
 namespace flatbuffers {
 
 // Wrapper for uoffset_t to allow safe template specialization.
 // Value is allowed to be 0 to indicate a null object (see e.g. AddOffset).
-template<typename T> struct Offset {
-  uoffset_t o;
+template<typename T = void> struct Offset {
+  // The type of offset to use.
+  typedef uoffset_t offset_type;
+
+  offset_type o;
   Offset() : o(0) {}
-  Offset(uoffset_t _o) : o(_o) {}
-  Offset<void> Union() const { return Offset<void>(o); }
+  Offset(const offset_type _o) : o(_o) {}
+  Offset<> Union() const { return o; }
   bool IsNull() const { return !o; }
 };
 
+// Wrapper for uoffset64_t Offsets.
+template<typename T = void> struct Offset64 {
+  // The type of offset to use.
+  typedef uoffset64_t offset_type;
+
+  offset_type o;
+  Offset64() : o(0) {}
+  Offset64(const offset_type offset) : o(offset) {}
+  Offset64<> Union() const { return o; }
+  bool IsNull() const { return !o; }
+};
+
+// Litmus check for ensuring the Offsets are the expected size.
+static_assert(sizeof(Offset<>) == 4, "Offset has wrong size");
+static_assert(sizeof(Offset64<>) == 8, "Offset64 has wrong size");
+
 inline void EndianCheck() {
   int endiantest = 1;
   // If this fails, see FLATBUFFERS_LITTLEENDIAN above.
@@ -73,25 +94,59 @@ template<typename T> struct IndirectHelper {
   typedef T return_type;
   typedef T mutable_return_type;
   static const size_t element_stride = sizeof(T);
-  static return_type Read(const uint8_t *p, uoffset_t i) {
+
+  static return_type Read(const uint8_t *p, const size_t i) {
     return EndianScalar((reinterpret_cast<const T *>(p))[i]);
   }
+  static mutable_return_type Read(uint8_t *p, const size_t i) {
+    return reinterpret_cast<mutable_return_type>(
+        Read(const_cast<const uint8_t *>(p), i));
+  }
 };
-template<typename T> struct IndirectHelper<Offset<T>> {
+
+// For vector of Offsets.
+template<typename T, template<typename> class OffsetT>
+struct IndirectHelper<OffsetT<T>> {
   typedef const T *return_type;
   typedef T *mutable_return_type;
-  static const size_t element_stride = sizeof(uoffset_t);
-  static return_type Read(const uint8_t *p, uoffset_t i) {
-    p += i * sizeof(uoffset_t);
-    return reinterpret_cast<return_type>(p + ReadScalar<uoffset_t>(p));
+  typedef typename OffsetT<T>::offset_type offset_type;
+  static const offset_type element_stride = sizeof(offset_type);
+
+  static return_type Read(const uint8_t *const p, const offset_type i) {
+    // Offsets are relative to themselves, so first update the pointer to
+    // point to the offset location.
+    const uint8_t *const offset_location = p + i * element_stride;
+
+    // Then read the scalar value of the offset (which may be 32 or 64-bits) and
+    // then determine the relative location from the offset location.
+    return reinterpret_cast<return_type>(
+        offset_location + ReadScalar<offset_type>(offset_location));
+  }
+  static mutable_return_type Read(uint8_t *const p, const offset_type i) {
+    // Offsets are relative to themselves, so first update the pointer to
+    // point to the offset location.
+    uint8_t *const offset_location = p + i * element_stride;
+
+    // Then read the scalar value of the offset (which may be 32 or 64-bits) and
+    // then determine the relative location from the offset location.
+    return reinterpret_cast<mutable_return_type>(
+        offset_location + ReadScalar<offset_type>(offset_location));
   }
 };
+
+// For vector of structs.
 template<typename T> struct IndirectHelper<const T *> {
   typedef const T *return_type;
   typedef T *mutable_return_type;
   static const size_t element_stride = sizeof(T);
-  static return_type Read(const uint8_t *p, uoffset_t i) {
-    return reinterpret_cast<const T *>(p + i * sizeof(T));
+
+  static return_type Read(const uint8_t *const p, const size_t i) {
+    // Structs are stored inline, relative to the first struct pointer.
+    return reinterpret_cast<return_type>(p + i * element_stride);
+  }
+  static mutable_return_type Read(uint8_t *const p, const size_t i) {
+    // Structs are stored inline, relative to the first struct pointer.
+    return reinterpret_cast<mutable_return_type>(p + i * element_stride);
   }
 };
 
@@ -118,25 +173,27 @@ inline bool BufferHasIdentifier(const void *buf, const char *identifier,
 /// @cond FLATBUFFERS_INTERNAL
 // Helpers to get a typed pointer to the root object contained in the buffer.
 template<typename T> T *GetMutableRoot(void *buf) {
+  if (!buf) return nullptr;
   EndianCheck();
   return reinterpret_cast<T *>(
       reinterpret_cast<uint8_t *>(buf) +
       EndianScalar(*reinterpret_cast<uoffset_t *>(buf)));
 }
 
-template<typename T> T *GetMutableSizePrefixedRoot(void *buf) {
-  return GetMutableRoot<T>(reinterpret_cast<uint8_t *>(buf) +
-                           sizeof(uoffset_t));
+template<typename T, typename SizeT = uoffset_t>
+T *GetMutableSizePrefixedRoot(void *buf) {
+  return GetMutableRoot<T>(reinterpret_cast<uint8_t *>(buf) + sizeof(SizeT));
 }
 
 template<typename T> const T *GetRoot(const void *buf) {
   return GetMutableRoot<T>(const_cast<void *>(buf));
 }
 
-template<typename T> const T *GetSizePrefixedRoot(const void *buf) {
-  return GetRoot<T>(reinterpret_cast<const uint8_t *>(buf) + sizeof(uoffset_t));
+template<typename T, typename SizeT = uoffset_t>
+const T *GetSizePrefixedRoot(const void *buf) {
+  return GetRoot<T>(reinterpret_cast<const uint8_t *>(buf) + sizeof(SizeT));
 }
 
 }  // namespace flatbuffers
 
-#endif  // FLATBUFFERS_BUFFER_H_
+#endif  // FLATBUFFERS_BUFFER_H_

3rdparty/flatbuffers/detached_buffer.h

@@ -45,7 +45,7 @@ class DetachedBuffer {
         cur_(cur),
         size_(sz) {}
 
-  DetachedBuffer(DetachedBuffer &&other)
+  DetachedBuffer(DetachedBuffer &&other) noexcept
       : allocator_(other.allocator_),
         own_allocator_(other.own_allocator_),
         buf_(other.buf_),
@@ -55,7 +55,7 @@ class DetachedBuffer {
     other.reset();
   }
 
-  DetachedBuffer &operator=(DetachedBuffer &&other) {
+  DetachedBuffer &operator=(DetachedBuffer &&other) noexcept {
     if (this == &other) return *this;
 
     destroy();