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authorTaras Madan <tarasmadan@google.com>2024-05-08 12:18:24 +0200
committerTaras Madan <tarasmadan@google.com>2024-05-08 12:15:43 +0000
commit9d9141efac942fc87ed529a9f5c68ef96eb6d707 (patch)
treeb2d10d52cac73d44dd3cd85e5283630342ab5ec9 /vendor/flatbuffers/array.h
parent9473be88c063129babde23303d74596fabcc6332 (diff)
executor: move flatbuffers from vendor to executor
Diffstat (limited to 'vendor/flatbuffers/array.h')
-rw-r--r--vendor/flatbuffers/array.h243
1 files changed, 0 insertions, 243 deletions
diff --git a/vendor/flatbuffers/array.h b/vendor/flatbuffers/array.h
deleted file mode 100644
index d4b73fc9e..000000000
--- a/vendor/flatbuffers/array.h
+++ /dev/null
@@ -1,243 +0,0 @@
-/*
- * Copyright 2021 Google Inc. All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef FLATBUFFERS_ARRAY_H_
-#define FLATBUFFERS_ARRAY_H_
-
-#include "flatbuffers/base.h"
-#include "flatbuffers/stl_emulation.h"
-#include "flatbuffers/vector.h"
-
-namespace flatbuffers {
-
-// This is used as a helper type for accessing arrays.
-template<typename T, uint16_t length> class Array {
- // Array<T> can carry only POD data types (scalars or structs).
- typedef typename flatbuffers::bool_constant<flatbuffers::is_scalar<T>::value>
- scalar_tag;
- typedef
- typename flatbuffers::conditional<scalar_tag::value, T, const T *>::type
- IndirectHelperType;
-
- public:
- typedef uint16_t size_type;
- typedef typename IndirectHelper<IndirectHelperType>::return_type return_type;
- typedef VectorIterator<T, return_type> const_iterator;
- typedef VectorReverseIterator<const_iterator> const_reverse_iterator;
-
- // If T is a LE-scalar or a struct (!scalar_tag::value).
- static FLATBUFFERS_CONSTEXPR bool is_span_observable =
- (scalar_tag::value && (FLATBUFFERS_LITTLEENDIAN || sizeof(T) == 1)) ||
- !scalar_tag::value;
-
- FLATBUFFERS_CONSTEXPR uint16_t size() const { return length; }
-
- return_type Get(uoffset_t i) const {
- FLATBUFFERS_ASSERT(i < size());
- return IndirectHelper<IndirectHelperType>::Read(Data(), i);
- }
-
- return_type operator[](uoffset_t i) const { return Get(i); }
-
- // If this is a Vector of enums, T will be its storage type, not the enum
- // type. This function makes it convenient to retrieve value with enum
- // type E.
- template<typename E> E GetEnum(uoffset_t i) const {
- return static_cast<E>(Get(i));
- }
-
- const_iterator begin() const { return const_iterator(Data(), 0); }
- const_iterator end() const { return const_iterator(Data(), size()); }
-
- const_reverse_iterator rbegin() const {
- return const_reverse_iterator(end());
- }
- const_reverse_iterator rend() const {
- return const_reverse_iterator(begin());
- }
-
- const_iterator cbegin() const { return begin(); }
- const_iterator cend() const { return end(); }
-
- const_reverse_iterator crbegin() const { return rbegin(); }
- const_reverse_iterator crend() const { return rend(); }
-
- // Get a mutable pointer to elements inside this array.
- // This method used to mutate arrays of structs followed by a @p Mutate
- // operation. For primitive types use @p Mutate directly.
- // @warning Assignments and reads to/from the dereferenced pointer are not
- // automatically converted to the correct endianness.
- typename flatbuffers::conditional<scalar_tag::value, void, T *>::type
- GetMutablePointer(uoffset_t i) const {
- FLATBUFFERS_ASSERT(i < size());
- return const_cast<T *>(&data()[i]);
- }
-
- // Change elements if you have a non-const pointer to this object.
- void Mutate(uoffset_t i, const T &val) { MutateImpl(scalar_tag(), i, val); }
-
- // The raw data in little endian format. Use with care.
- const uint8_t *Data() const { return data_; }
-
- uint8_t *Data() { return data_; }
-
- // Similarly, but typed, much like std::vector::data
- const T *data() const { return reinterpret_cast<const T *>(Data()); }
- T *data() { return reinterpret_cast<T *>(Data()); }
-
- // Copy data from a span with endian conversion.
- // If this Array and the span overlap, the behavior is undefined.
- void CopyFromSpan(flatbuffers::span<const T, length> src) {
- const auto p1 = reinterpret_cast<const uint8_t *>(src.data());
- const auto p2 = Data();
- FLATBUFFERS_ASSERT(!(p1 >= p2 && p1 < (p2 + length)) &&
- !(p2 >= p1 && p2 < (p1 + length)));
- (void)p1;
- (void)p2;
- CopyFromSpanImpl(flatbuffers::bool_constant<is_span_observable>(), src);
- }
-
- protected:
- void MutateImpl(flatbuffers::true_type, uoffset_t i, const T &val) {
- FLATBUFFERS_ASSERT(i < size());
- WriteScalar(data() + i, val);
- }
-
- void MutateImpl(flatbuffers::false_type, uoffset_t i, const T &val) {
- *(GetMutablePointer(i)) = val;
- }
-
- void CopyFromSpanImpl(flatbuffers::true_type,
- flatbuffers::span<const T, length> src) {
- // Use std::memcpy() instead of std::copy() to avoid performance degradation
- // due to aliasing if T is char or unsigned char.
- // The size is known at compile time, so memcpy would be inlined.
- std::memcpy(data(), src.data(), length * sizeof(T));
- }
-
- // Copy data from flatbuffers::span with endian conversion.
- void CopyFromSpanImpl(flatbuffers::false_type,
- flatbuffers::span<const T, length> src) {
- for (size_type k = 0; k < length; k++) { Mutate(k, src[k]); }
- }
-
- // This class is only used to access pre-existing data. Don't ever
- // try to construct these manually.
- // 'constexpr' allows us to use 'size()' at compile time.
- // @note Must not use 'FLATBUFFERS_CONSTEXPR' here, as const is not allowed on
- // a constructor.
-#if defined(__cpp_constexpr)
- constexpr Array();
-#else
- Array();
-#endif
-
- uint8_t data_[length * sizeof(T)];
-
- private:
- // This class is a pointer. Copying will therefore create an invalid object.
- // Private and unimplemented copy constructor.
- Array(const Array &);
- Array &operator=(const 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> {
- static_assert(flatbuffers::is_same<T, void>::value, "unexpected type T");
-
- public:
- typedef const void *return_type;
-
- const uint8_t *Data() const { return data_; }
-
- // Make idl_gen_text.cpp::PrintContainer happy.
- return_type operator[](uoffset_t) const {
- FLATBUFFERS_ASSERT(false);
- return nullptr;
- }
-
- private:
- // This class is only used to access pre-existing data.
- Array();
- Array(const Array &);
- Array &operator=(const Array &);
-
- uint8_t data_[1];
-};
-
-template<class U, uint16_t N>
-FLATBUFFERS_CONSTEXPR_CPP11 flatbuffers::span<U, N> make_span(Array<U, N> &arr)
- FLATBUFFERS_NOEXCEPT {
- static_assert(
- Array<U, N>::is_span_observable,
- "wrong type U, only plain struct, LE-scalar, or byte types are allowed");
- return span<U, N>(arr.data(), N);
-}
-
-template<class U, uint16_t N>
-FLATBUFFERS_CONSTEXPR_CPP11 flatbuffers::span<const U, N> make_span(
- const Array<U, N> &arr) FLATBUFFERS_NOEXCEPT {
- static_assert(
- Array<U, N>::is_span_observable,
- "wrong type U, only plain struct, LE-scalar, or byte types are allowed");
- return span<const U, N>(arr.data(), N);
-}
-
-template<class U, uint16_t N>
-FLATBUFFERS_CONSTEXPR_CPP11 flatbuffers::span<uint8_t, sizeof(U) * N>
-make_bytes_span(Array<U, N> &arr) FLATBUFFERS_NOEXCEPT {
- static_assert(Array<U, N>::is_span_observable,
- "internal error, Array<T> might hold only scalars or structs");
- return span<uint8_t, sizeof(U) * N>(arr.Data(), sizeof(U) * N);
-}
-
-template<class U, uint16_t N>
-FLATBUFFERS_CONSTEXPR_CPP11 flatbuffers::span<const uint8_t, sizeof(U) * N>
-make_bytes_span(const Array<U, N> &arr) FLATBUFFERS_NOEXCEPT {
- static_assert(Array<U, N>::is_span_observable,
- "internal error, Array<T> might hold only scalars or structs");
- return span<const uint8_t, sizeof(U) * N>(arr.Data(), sizeof(U) * N);
-}
-
-// Cast a raw T[length] to a raw flatbuffers::Array<T, length>
-// without endian conversion. Use with care.
-// TODO: move these Cast-methods to `internal` namespace.
-template<typename T, uint16_t length>
-Array<T, length> &CastToArray(T (&arr)[length]) {
- return *reinterpret_cast<Array<T, length> *>(arr);
-}
-
-template<typename T, uint16_t length>
-const Array<T, length> &CastToArray(const T (&arr)[length]) {
- return *reinterpret_cast<const Array<T, length> *>(arr);
-}
-
-template<typename E, typename T, uint16_t length>
-Array<E, length> &CastToArrayOfEnum(T (&arr)[length]) {
- static_assert(sizeof(E) == sizeof(T), "invalid enum type E");
- return *reinterpret_cast<Array<E, length> *>(arr);
-}
-
-template<typename E, typename T, uint16_t length>
-const Array<E, length> &CastToArrayOfEnum(const T (&arr)[length]) {
- static_assert(sizeof(E) == sizeof(T), "invalid enum type E");
- return *reinterpret_cast<const Array<E, length> *>(arr);
-}
-
-} // namespace flatbuffers
-
-#endif // FLATBUFFERS_ARRAY_H_