mirror of https://github.com/axmolengine/axmol.git
Merge pull request #388 from adxeproject/fb-2.0
Update flatbuffers to v2.0.0
This commit is contained in:
halx99
GitHub
commit
505faa25e2
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@ -56,7 +56,7 @@
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## flatbuffers
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- Upstream: https://github.com/google/flatbuffers
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- Version: 1.12.0
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- Version: 2.0.0
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- License: Apache-2.0
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## FreeType
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@ -46,14 +46,17 @@
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#include <iterator>
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#include <memory>
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#if defined(__unix__) && !defined(FLATBUFFERS_LOCALE_INDEPENDENT)
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#include <unistd.h>
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#endif
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#ifdef _STLPORT_VERSION
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#define FLATBUFFERS_CPP98_STL
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#endif
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#ifndef FLATBUFFERS_CPP98_STL
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#include <functional>
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#endif
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#include "flatbuffers/stl_emulation.h"
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#ifdef __ANDROID__
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#include <android/api-level.h>
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#endif
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#if defined(__ICCARM__)
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#include <intrinsics.h>
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@ -139,8 +142,8 @@
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#endif
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#endif // !defined(FLATBUFFERS_LITTLEENDIAN)
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#define FLATBUFFERS_VERSION_MAJOR 1
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#define FLATBUFFERS_VERSION_MINOR 12
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#define FLATBUFFERS_VERSION_MAJOR 2
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#define FLATBUFFERS_VERSION_MINOR 0
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#define FLATBUFFERS_VERSION_REVISION 0
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#define FLATBUFFERS_STRING_EXPAND(X) #X
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#define FLATBUFFERS_STRING(X) FLATBUFFERS_STRING_EXPAND(X)
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@ -154,10 +157,12 @@ namespace flatbuffers {
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defined(__clang__)
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#define FLATBUFFERS_FINAL_CLASS final
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#define FLATBUFFERS_OVERRIDE override
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#define FLATBUFFERS_EXPLICIT_CPP11 explicit
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#define FLATBUFFERS_VTABLE_UNDERLYING_TYPE : flatbuffers::voffset_t
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#else
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#define FLATBUFFERS_FINAL_CLASS
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#define FLATBUFFERS_OVERRIDE
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#define FLATBUFFERS_EXPLICIT_CPP11
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#define FLATBUFFERS_VTABLE_UNDERLYING_TYPE
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#endif
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@ -165,13 +170,16 @@ namespace flatbuffers {
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(!defined(__GNUC__) || (__GNUC__ * 100 + __GNUC_MINOR__ >= 406)) || \
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(defined(__cpp_constexpr) && __cpp_constexpr >= 200704)
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#define FLATBUFFERS_CONSTEXPR constexpr
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#define FLATBUFFERS_CONSTEXPR_CPP11 constexpr
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#define FLATBUFFERS_CONSTEXPR_DEFINED
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#else
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#define FLATBUFFERS_CONSTEXPR const
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#define FLATBUFFERS_CONSTEXPR_CPP11
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#endif
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#if (defined(__cplusplus) && __cplusplus >= 201402L) || \
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(defined(__cpp_constexpr) && __cpp_constexpr >= 201304)
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#define FLATBUFFERS_CONSTEXPR_CPP14 FLATBUFFERS_CONSTEXPR
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#define FLATBUFFERS_CONSTEXPR_CPP14 FLATBUFFERS_CONSTEXPR_CPP11
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#else
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#define FLATBUFFERS_CONSTEXPR_CPP14
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#endif
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@ -189,9 +197,25 @@ namespace flatbuffers {
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#if (!defined(_MSC_VER) || _MSC_FULL_VER >= 180020827) && \
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(!defined(__GNUC__) || (__GNUC__ * 100 + __GNUC_MINOR__ >= 404)) || \
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defined(__clang__)
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#define FLATBUFFERS_DELETE_FUNC(func) func = delete;
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#define FLATBUFFERS_DELETE_FUNC(func) func = delete
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#else
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#define FLATBUFFERS_DELETE_FUNC(func) private: func;
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#define FLATBUFFERS_DELETE_FUNC(func) private: func
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#endif
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#if (!defined(_MSC_VER) || _MSC_VER >= 1900) && \
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(!defined(__GNUC__) || (__GNUC__ * 100 + __GNUC_MINOR__ >= 409)) || \
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defined(__clang__)
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#define FLATBUFFERS_DEFAULT_DECLARATION
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#endif
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// Check if we can use template aliases
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// Not possible if Microsoft Compiler before 2012
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// Possible is the language feature __cpp_alias_templates is defined well
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// Or possible if the C++ std is C+11 or newer
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#if (defined(_MSC_VER) && _MSC_VER > 1700 /* MSVC2012 */) \
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|| (defined(__cpp_alias_templates) && __cpp_alias_templates >= 200704) \
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|| (defined(__cplusplus) && __cplusplus >= 201103L)
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#define FLATBUFFERS_TEMPLATES_ALIASES
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#endif
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#ifndef FLATBUFFERS_HAS_STRING_VIEW
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@ -236,10 +260,8 @@ namespace flatbuffers {
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#ifndef FLATBUFFERS_LOCALE_INDEPENDENT
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// Enable locale independent functions {strtof_l, strtod_l,strtoll_l, strtoull_l}.
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// They are part of the POSIX-2008 but not part of the C/C++ standard.
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// GCC/Clang have definition (_XOPEN_SOURCE>=700) if POSIX-2008.
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#if ((defined(_MSC_VER) && _MSC_VER >= 1800) || \
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(defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE>=700)))
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(defined(_XOPEN_VERSION) && (_XOPEN_VERSION>=700)) && (!defined(__ANDROID_API__) || (defined(__ANDROID_API__) && (__ANDROID_API__>=21))))
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#define FLATBUFFERS_LOCALE_INDEPENDENT 1
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#else
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#define FLATBUFFERS_LOCALE_INDEPENDENT 0
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@ -308,7 +330,13 @@ typedef uintmax_t largest_scalar_t;
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// We support aligning the contents of buffers up to this size.
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#define FLATBUFFERS_MAX_ALIGNMENT 16
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inline bool VerifyAlignmentRequirements(size_t align, size_t min_align = 1) {
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return (min_align <= align) && (align <= (FLATBUFFERS_MAX_ALIGNMENT)) &&
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(align & (align - 1)) == 0; // must be power of 2
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}
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#if defined(_MSC_VER)
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#pragma warning(disable: 4351) // C4351: new behavior: elements of array ... will be default initialized
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#pragma warning(push)
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#pragma warning(disable: 4127) // C4127: conditional expression is constant
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#endif
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@ -374,6 +402,13 @@ T ReadScalar(const void *p) {
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return EndianScalar(*reinterpret_cast<const T *>(p));
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}
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// See https://github.com/google/flatbuffers/issues/5950
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#if (FLATBUFFERS_GCC >= 100000) && (FLATBUFFERS_GCC < 110000)
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wstringop-overflow"
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#endif
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template<typename T>
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// UBSAN: C++ aliasing type rules, see std::bit_cast<> for details.
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__supress_ubsan__("alignment")
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@ -386,6 +421,10 @@ template<typename T> __supress_ubsan__("alignment") void WriteScalar(void *p, Of
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*reinterpret_cast<uoffset_t *>(p) = EndianScalar(t.o);
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}
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#if (FLATBUFFERS_GCC >= 100000) && (FLATBUFFERS_GCC < 110000)
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#pragma GCC diagnostic pop
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#endif
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// Computes how many bytes you'd have to pad to be able to write an
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// "scalar_size" scalar if the buffer had grown to "buf_size" (downwards in
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// memory).
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@ -18,6 +18,11 @@
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#define FLATBUFFERS_H_
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#include "flatbuffers/base.h"
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#include "flatbuffers/stl_emulation.h"
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#ifndef FLATBUFFERS_CPP98_STL
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# include <functional>
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#endif
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#if defined(FLATBUFFERS_NAN_DEFAULTS)
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# include <cmath>
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@ -167,8 +172,12 @@ template<typename T, typename IT> struct VectorIterator {
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return (data_ - other.data_) / IndirectHelper<T>::element_stride;
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}
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// Note: return type is incompatible with the standard
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// `reference operator*()`.
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IT operator*() const { return IndirectHelper<T>::Read(data_, 0); }
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// Note: return type is incompatible with the standard
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// `pointer operator->()`.
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IT operator->() const { return IndirectHelper<T>::Read(data_, 0); }
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VectorIterator &operator++() {
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@ -222,12 +231,18 @@ struct VectorReverseIterator : public std::reverse_iterator<Iterator> {
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explicit VectorReverseIterator(Iterator iter)
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: std::reverse_iterator<Iterator>(iter) {}
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// Note: return type is incompatible with the standard
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// `reference operator*()`.
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typename Iterator::value_type operator*() const {
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return *(std::reverse_iterator<Iterator>::current);
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auto tmp = std::reverse_iterator<Iterator>::current;
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return *--tmp;
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}
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// Note: return type is incompatible with the standard
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// `pointer operator->()`.
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typename Iterator::value_type operator->() const {
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return *(std::reverse_iterator<Iterator>::current);
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auto tmp = std::reverse_iterator<Iterator>::current;
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return *--tmp;
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}
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};
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@ -252,6 +267,7 @@ template<typename T> class Vector {
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typedef typename IndirectHelper<T>::return_type return_type;
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typedef typename IndirectHelper<T>::mutable_return_type mutable_return_type;
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typedef return_type value_type;
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return_type Get(uoffset_t i) const {
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FLATBUFFERS_ASSERT(i < size());
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@ -289,14 +305,14 @@ template<typename T> class Vector {
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iterator end() { return iterator(Data(), size()); }
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const_iterator end() const { return const_iterator(Data(), size()); }
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reverse_iterator rbegin() { return reverse_iterator(end() - 1); }
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reverse_iterator rbegin() { return reverse_iterator(end()); }
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const_reverse_iterator rbegin() const {
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return const_reverse_iterator(end() - 1);
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return const_reverse_iterator(end());
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}
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reverse_iterator rend() { return reverse_iterator(begin() - 1); }
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reverse_iterator rend() { return reverse_iterator(begin()); }
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const_reverse_iterator rend() const {
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return const_reverse_iterator(begin() - 1);
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return const_reverse_iterator(begin());
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}
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const_iterator cbegin() const { return begin(); }
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@ -430,6 +446,7 @@ template<typename T, uint16_t length> class Array {
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IndirectHelperType;
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public:
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typedef uint16_t size_type;
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typedef typename IndirectHelper<IndirectHelperType>::return_type return_type;
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typedef VectorIterator<T, return_type> const_iterator;
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typedef VectorReverseIterator<const_iterator> const_reverse_iterator;
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@ -456,7 +473,9 @@ template<typename T, uint16_t length> class Array {
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const_reverse_iterator rbegin() const {
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return const_reverse_iterator(end());
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}
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const_reverse_iterator rend() const { return const_reverse_iterator(end()); }
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const_reverse_iterator rend() const {
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return const_reverse_iterator(begin());
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}
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const_iterator cbegin() const { return begin(); }
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const_iterator cend() const { return end(); }
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@ -487,6 +506,22 @@ template<typename T, uint16_t length> class Array {
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const T *data() const { return reinterpret_cast<const T *>(Data()); }
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T *data() { return reinterpret_cast<T *>(Data()); }
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// Copy data from a span with endian conversion.
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// If this Array and the span overlap, the behavior is undefined.
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void CopyFromSpan(flatbuffers::span<const T, length> src) {
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const auto p1 = reinterpret_cast<const uint8_t *>(src.data());
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const auto p2 = Data();
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FLATBUFFERS_ASSERT(!(p1 >= p2 && p1 < (p2 + length)) &&
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!(p2 >= p1 && p2 < (p1 + length)));
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(void)p1;
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(void)p2;
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CopyFromSpanImpl(
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flatbuffers::integral_constant < bool,
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!scalar_tag::value || sizeof(T) == 1 || FLATBUFFERS_LITTLEENDIAN > (),
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src);
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}
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protected:
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void MutateImpl(flatbuffers::integral_constant<bool, true>, uoffset_t i,
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const T &val) {
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@ -499,6 +534,20 @@ template<typename T, uint16_t length> class Array {
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*(GetMutablePointer(i)) = val;
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}
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void CopyFromSpanImpl(flatbuffers::integral_constant<bool, true>,
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flatbuffers::span<const T, length> src) {
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// Use std::memcpy() instead of std::copy() to avoid preformance degradation
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// due to aliasing if T is char or unsigned char.
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// The size is known at compile time, so memcpy would be inlined.
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std::memcpy(data(), src.data(), length * sizeof(T));
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}
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// Copy data from flatbuffers::span with endian conversion.
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void CopyFromSpanImpl(flatbuffers::integral_constant<bool, false>,
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flatbuffers::span<const T, length> src) {
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for (size_type k = 0; k < length; k++) { Mutate(k, src[k]); }
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}
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// This class is only used to access pre-existing data. Don't ever
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// try to construct these manually.
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// 'constexpr' allows us to use 'size()' at compile time.
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@ -544,6 +593,30 @@ template<typename T, uint16_t length> class Array<Offset<T>, length> {
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uint8_t data_[1];
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};
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// Cast a raw T[length] to a raw flatbuffers::Array<T, length>
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// without endian conversion. Use with care.
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template<typename T, uint16_t length>
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Array<T, length> &CastToArray(T (&arr)[length]) {
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return *reinterpret_cast<Array<T, length> *>(arr);
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}
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template<typename T, uint16_t length>
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const Array<T, length> &CastToArray(const T (&arr)[length]) {
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return *reinterpret_cast<const Array<T, length> *>(arr);
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}
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template<typename E, typename T, uint16_t length>
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Array<E, length> &CastToArrayOfEnum(T (&arr)[length]) {
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static_assert(sizeof(E) == sizeof(T), "invalid enum type E");
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return *reinterpret_cast<Array<E, length> *>(arr);
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}
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template<typename E, typename T, uint16_t length>
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const Array<E, length> &CastToArrayOfEnum(const T (&arr)[length]) {
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static_assert(sizeof(E) == sizeof(T), "invalid enum type E");
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return *reinterpret_cast<const Array<E, length> *>(arr);
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}
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// Lexicographically compare two strings (possibly containing nulls), and
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// return true if the first is less than the second.
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static inline bool StringLessThan(const char *a_data, uoffset_t a_size,
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@ -581,6 +654,14 @@ static inline const char *GetCstring(const String *str) {
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return str ? str->c_str() : "";
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}
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#ifdef FLATBUFFERS_HAS_STRING_VIEW
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// Convenience function to get string_view from a String returning an empty
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// string_view on null pointer.
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static inline flatbuffers::string_view GetStringView(const String *str) {
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return str ? str->string_view() : flatbuffers::string_view();
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}
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#endif // FLATBUFFERS_HAS_STRING_VIEW
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// Allocator interface. This is flatbuffers-specific and meant only for
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// `vector_downward` usage.
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class Allocator {
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@ -753,9 +834,9 @@ class DetachedBuffer {
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#if !defined(FLATBUFFERS_CPP98_STL)
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// clang-format on
|
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// These may change access mode, leave these at end of public section
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FLATBUFFERS_DELETE_FUNC(DetachedBuffer(const DetachedBuffer &other))
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FLATBUFFERS_DELETE_FUNC(DetachedBuffer(const DetachedBuffer &other));
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FLATBUFFERS_DELETE_FUNC(
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DetachedBuffer &operator=(const DetachedBuffer &other))
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DetachedBuffer &operator=(const DetachedBuffer &other));
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// clang-format off
|
||||
#endif // !defined(FLATBUFFERS_CPP98_STL)
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// clang-format on
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@ -920,7 +1001,7 @@ class vector_downward {
|
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Allocator *get_custom_allocator() { return allocator_; }
|
||||
|
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uoffset_t size() const {
|
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return static_cast<uoffset_t>(reserved_ - (cur_ - buf_));
|
||||
return static_cast<uoffset_t>(reserved_ - static_cast<size_t>(cur_ - buf_));
|
||||
}
|
||||
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||||
uoffset_t scratch_size() const {
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||||
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@ -998,8 +1079,8 @@ class vector_downward {
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|||
|
||||
private:
|
||||
// You shouldn't really be copying instances of this class.
|
||||
FLATBUFFERS_DELETE_FUNC(vector_downward(const vector_downward &))
|
||||
FLATBUFFERS_DELETE_FUNC(vector_downward &operator=(const vector_downward &))
|
||||
FLATBUFFERS_DELETE_FUNC(vector_downward(const vector_downward &));
|
||||
FLATBUFFERS_DELETE_FUNC(vector_downward &operator=(const vector_downward &));
|
||||
|
||||
Allocator *allocator_;
|
||||
bool own_allocator_;
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||||
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@ -1171,6 +1252,14 @@ class FlatBufferBuilder {
|
|||
return buf_.data();
|
||||
}
|
||||
|
||||
/// @brief Get the serialized buffer (after you call `Finish()`) as a span.
|
||||
/// @return Returns a constructed flatbuffers::span that is a view over the
|
||||
/// FlatBuffer data inside the buffer.
|
||||
flatbuffers::span<uint8_t> GetBufferSpan() const {
|
||||
Finished();
|
||||
return flatbuffers::span<uint8_t>(buf_.data(), buf_.size());
|
||||
}
|
||||
|
||||
/// @brief Get a pointer to an unfinished buffer.
|
||||
/// @return Returns a `uint8_t` pointer to the unfinished buffer.
|
||||
uint8_t *GetCurrentBufferPointer() const { return buf_.data(); }
|
||||
|
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@ -1211,7 +1300,7 @@ class FlatBufferBuilder {
|
|||
/// you call Finish()). You can use this information if you need to embed
|
||||
/// a FlatBuffer in some other buffer, such that you can later read it
|
||||
/// without first having to copy it into its own buffer.
|
||||
size_t GetBufferMinAlignment() {
|
||||
size_t GetBufferMinAlignment() const {
|
||||
Finished();
|
||||
return minalign_;
|
||||
}
|
||||
|
|
@ -1295,6 +1384,11 @@ class FlatBufferBuilder {
|
|||
TrackField(field, off);
|
||||
}
|
||||
|
||||
template<typename T> void AddElement(voffset_t field, T e) {
|
||||
auto off = PushElement(e);
|
||||
TrackField(field, off);
|
||||
}
|
||||
|
||||
template<typename T> void AddOffset(voffset_t field, Offset<T> off) {
|
||||
if (off.IsNull()) return; // Don't store.
|
||||
AddElement(field, ReferTo(off.o), static_cast<uoffset_t>(0));
|
||||
|
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@ -1530,6 +1624,16 @@ class FlatBufferBuilder {
|
|||
return off;
|
||||
}
|
||||
|
||||
#ifdef FLATBUFFERS_HAS_STRING_VIEW
|
||||
/// @brief Store a string in the buffer, which can contain any binary data.
|
||||
/// If a string with this exact contents has already been serialized before,
|
||||
/// instead simply returns the offset of the existing string.
|
||||
/// @param[in] str A const std::string_view to store in the buffer.
|
||||
/// @return Returns the offset in the buffer where the string starts
|
||||
Offset<String> CreateSharedString(const flatbuffers::string_view str) {
|
||||
return CreateSharedString(str.data(), str.size());
|
||||
}
|
||||
#else
|
||||
/// @brief Store a string in the buffer, which null-terminated.
|
||||
/// If a string with this exact contents has already been serialized before,
|
||||
/// instead simply returns the offset of the existing string.
|
||||
|
|
@ -1547,6 +1651,7 @@ class FlatBufferBuilder {
|
|||
Offset<String> CreateSharedString(const std::string &str) {
|
||||
return CreateSharedString(str.c_str(), str.length());
|
||||
}
|
||||
#endif
|
||||
|
||||
/// @brief Store a string in the buffer, which can contain any binary data.
|
||||
/// If a string with this exact contents has already been serialized before,
|
||||
|
|
@ -1577,11 +1682,13 @@ class FlatBufferBuilder {
|
|||
// This is useful when storing a nested_flatbuffer in a vector of bytes,
|
||||
// or when storing SIMD floats, etc.
|
||||
void ForceVectorAlignment(size_t len, size_t elemsize, size_t alignment) {
|
||||
FLATBUFFERS_ASSERT(VerifyAlignmentRequirements(alignment));
|
||||
PreAlign(len * elemsize, alignment);
|
||||
}
|
||||
|
||||
// Similar to ForceVectorAlignment but for String fields.
|
||||
void ForceStringAlignment(size_t len, size_t alignment) {
|
||||
FLATBUFFERS_ASSERT(VerifyAlignmentRequirements(alignment));
|
||||
PreAlign((len + 1) * sizeof(char), alignment);
|
||||
}
|
||||
|
||||
|
|
@ -1599,6 +1706,7 @@ class FlatBufferBuilder {
|
|||
// causing the wrong overload to be selected, remove it.
|
||||
AssertScalarT<T>();
|
||||
StartVector(len, sizeof(T));
|
||||
if (len == 0) { return Offset<Vector<T>>(EndVector(len)); }
|
||||
// clang-format off
|
||||
#if FLATBUFFERS_LITTLEENDIAN
|
||||
PushBytes(reinterpret_cast<const uint8_t *>(v), len * sizeof(T));
|
||||
|
|
@ -1704,6 +1812,25 @@ class FlatBufferBuilder {
|
|||
return Offset<Vector<const T *>>(EndVector(len));
|
||||
}
|
||||
|
||||
/// @brief Serialize an array of native structs into a FlatBuffer `vector`.
|
||||
/// @tparam T The data type of the struct array elements.
|
||||
/// @tparam S The data type of the native struct array elements.
|
||||
/// @param[in] v A pointer to the array of type `S` to serialize into the
|
||||
/// buffer as a `vector`.
|
||||
/// @param[in] len The number of elements to serialize.
|
||||
/// @param[in] pack_func Pointer to a function to convert the native struct
|
||||
/// to the FlatBuffer struct.
|
||||
/// @return Returns a typed `Offset` into the serialized data indicating
|
||||
/// where the vector is stored.
|
||||
template<typename T, typename S>
|
||||
Offset<Vector<const T *>> CreateVectorOfNativeStructs(
|
||||
const S *v, size_t len, T((*const pack_func)(const S &))) {
|
||||
FLATBUFFERS_ASSERT(pack_func);
|
||||
std::vector<T> vv(len);
|
||||
std::transform(v, v + len, vv.begin(), pack_func);
|
||||
return CreateVectorOfStructs<T>(data(vv), vv.size());
|
||||
}
|
||||
|
||||
/// @brief Serialize an array of native structs into a FlatBuffer `vector`.
|
||||
/// @tparam T The data type of the struct array elements.
|
||||
/// @tparam S The data type of the native struct array elements.
|
||||
|
|
@ -1716,9 +1843,7 @@ class FlatBufferBuilder {
|
|||
Offset<Vector<const T *>> CreateVectorOfNativeStructs(const S *v,
|
||||
size_t len) {
|
||||
extern T Pack(const S &);
|
||||
std::vector<T> vv(len);
|
||||
std::transform(v, v + len, vv.begin(), Pack);
|
||||
return CreateVectorOfStructs<T>(data(vv), vv.size());
|
||||
return CreateVectorOfNativeStructs(v, len, Pack);
|
||||
}
|
||||
|
||||
// clang-format off
|
||||
|
|
@ -1775,6 +1900,22 @@ class FlatBufferBuilder {
|
|||
return CreateVectorOfStructs(data(v), v.size());
|
||||
}
|
||||
|
||||
/// @brief Serialize a `std::vector` of native structs into a FlatBuffer
|
||||
/// `vector`.
|
||||
/// @tparam T The data type of the `std::vector` struct elements.
|
||||
/// @tparam S The data type of the `std::vector` native struct elements.
|
||||
/// @param[in] v A const reference to the `std::vector` of structs to
|
||||
/// serialize into the buffer as a `vector`.
|
||||
/// @param[in] pack_func Pointer to a function to convert the native struct
|
||||
/// to the FlatBuffer struct.
|
||||
/// @return Returns a typed `Offset` into the serialized data indicating
|
||||
/// where the vector is stored.
|
||||
template<typename T, typename S>
|
||||
Offset<Vector<const T *>> CreateVectorOfNativeStructs(
|
||||
const std::vector<S> &v, T((*const pack_func)(const S &))) {
|
||||
return CreateVectorOfNativeStructs<T, S>(data(v), v.size(), pack_func);
|
||||
}
|
||||
|
||||
/// @brief Serialize a `std::vector` of native structs into a FlatBuffer
|
||||
/// `vector`.
|
||||
/// @tparam T The data type of the `std::vector` struct elements.
|
||||
|
|
@ -1795,8 +1936,8 @@ class FlatBufferBuilder {
|
|||
return a.KeyCompareLessThan(&b);
|
||||
}
|
||||
|
||||
private:
|
||||
StructKeyComparator &operator=(const StructKeyComparator &);
|
||||
FLATBUFFERS_DELETE_FUNC(
|
||||
StructKeyComparator &operator=(const StructKeyComparator &));
|
||||
};
|
||||
/// @endcond
|
||||
|
||||
|
|
@ -1871,10 +2012,8 @@ class FlatBufferBuilder {
|
|||
vector_downward &buf_;
|
||||
|
||||
private:
|
||||
TableKeyComparator &operator=(const TableKeyComparator &other) {
|
||||
buf_ = other.buf_;
|
||||
return *this;
|
||||
}
|
||||
FLATBUFFERS_DELETE_FUNC(
|
||||
TableKeyComparator &operator=(const TableKeyComparator &other));
|
||||
};
|
||||
/// @endcond
|
||||
|
||||
|
|
@ -2269,8 +2408,8 @@ class Verifier FLATBUFFERS_FINAL_CLASS {
|
|||
|
||||
template<typename T>
|
||||
bool VerifyBufferFromStart(const char *identifier, size_t start) {
|
||||
if (identifier && (size_ < 2 * sizeof(flatbuffers::uoffset_t) ||
|
||||
!BufferHasIdentifier(buf_ + start, identifier))) {
|
||||
if (identifier && !Check((size_ >= 2 * sizeof(flatbuffers::uoffset_t) &&
|
||||
BufferHasIdentifier(buf_ + start, identifier)))) {
|
||||
return false;
|
||||
}
|
||||
|
||||
|
|
@ -2452,12 +2591,26 @@ class Table {
|
|||
return field_offset ? reinterpret_cast<P>(p) : nullptr;
|
||||
}
|
||||
|
||||
template<typename Raw, typename Face>
|
||||
flatbuffers::Optional<Face> GetOptional(voffset_t field) const {
|
||||
auto field_offset = GetOptionalFieldOffset(field);
|
||||
auto p = data_ + field_offset;
|
||||
return field_offset ? Optional<Face>(static_cast<Face>(ReadScalar<Raw>(p)))
|
||||
: Optional<Face>();
|
||||
}
|
||||
|
||||
template<typename T> bool SetField(voffset_t field, T val, T def) {
|
||||
auto field_offset = GetOptionalFieldOffset(field);
|
||||
if (!field_offset) return IsTheSameAs(val, def);
|
||||
WriteScalar(data_ + field_offset, val);
|
||||
return true;
|
||||
}
|
||||
template<typename T> bool SetField(voffset_t field, T val) {
|
||||
auto field_offset = GetOptionalFieldOffset(field);
|
||||
if (!field_offset) return false;
|
||||
WriteScalar(data_ + field_offset, val);
|
||||
return true;
|
||||
}
|
||||
|
||||
bool SetPointer(voffset_t field, const uint8_t *val) {
|
||||
auto field_offset = GetOptionalFieldOffset(field);
|
||||
|
|
@ -2525,6 +2678,17 @@ class Table {
|
|||
uint8_t data_[1];
|
||||
};
|
||||
|
||||
// This specialization allows avoiding warnings like:
|
||||
// MSVC C4800: type: forcing value to bool 'true' or 'false'.
|
||||
template<>
|
||||
inline flatbuffers::Optional<bool> Table::GetOptional<uint8_t, bool>(
|
||||
voffset_t field) const {
|
||||
auto field_offset = GetOptionalFieldOffset(field);
|
||||
auto p = data_ + field_offset;
|
||||
return field_offset ? Optional<bool>(ReadScalar<uint8_t>(p) != 0)
|
||||
: Optional<bool>();
|
||||
}
|
||||
|
||||
template<typename T>
|
||||
void FlatBufferBuilder::Required(Offset<T> table, voffset_t field) {
|
||||
auto table_ptr = reinterpret_cast<const Table *>(buf_.data_at(table.o));
|
||||
|
|
@ -2702,10 +2866,16 @@ inline const char * const *ElementaryTypeNames() {
|
|||
// clang-format on
|
||||
|
||||
// Basic type info cost just 16bits per field!
|
||||
// We're explicitly defining the signedness since the signedness of integer
|
||||
// bitfields is otherwise implementation-defined and causes warnings on older
|
||||
// GCC compilers.
|
||||
struct TypeCode {
|
||||
uint16_t base_type : 4; // ElementaryType
|
||||
uint16_t is_vector : 1;
|
||||
int16_t sequence_ref : 11; // Index into type_refs below, or -1 for none.
|
||||
// ElementaryType
|
||||
unsigned short base_type : 4;
|
||||
// Either vector (in table) or array (in struct)
|
||||
unsigned short is_repeating : 1;
|
||||
// Index into type_refs below, or -1 for none.
|
||||
signed short sequence_ref : 11;
|
||||
};
|
||||
|
||||
static_assert(sizeof(TypeCode) == 2, "TypeCode");
|
||||
|
|
@ -2720,6 +2890,7 @@ struct TypeTable {
|
|||
size_t num_elems; // of type_codes, values, names (but not type_refs).
|
||||
const TypeCode *type_codes; // num_elems count
|
||||
const TypeFunction *type_refs; // less than num_elems entries (see TypeCode).
|
||||
const int16_t *array_sizes; // less than num_elems entries (see TypeCode).
|
||||
const int64_t *values; // Only set for non-consecutive enum/union or structs.
|
||||
const char *const *names; // Only set if compiled with --reflect-names.
|
||||
};
|
||||
|
|
|
|||
|
|
@ -18,6 +18,7 @@
|
|||
#define FLATBUFFERS_STL_EMULATION_H_
|
||||
|
||||
// clang-format off
|
||||
#include "flatbuffers/base.h"
|
||||
|
||||
#include <string>
|
||||
#include <type_traits>
|
||||
|
|
@ -33,15 +34,34 @@
|
|||
#include <cctype>
|
||||
#endif // defined(FLATBUFFERS_CPP98_STL)
|
||||
|
||||
// Check if we can use template aliases
|
||||
// Not possible if Microsoft Compiler before 2012
|
||||
// Possible is the language feature __cpp_alias_templates is defined well
|
||||
// Or possible if the C++ std is C+11 or newer
|
||||
#if (defined(_MSC_VER) && _MSC_VER > 1700 /* MSVC2012 */) \
|
||||
|| (defined(__cpp_alias_templates) && __cpp_alias_templates >= 200704) \
|
||||
|| (defined(__cplusplus) && __cplusplus >= 201103L)
|
||||
#define FLATBUFFERS_TEMPLATES_ALIASES
|
||||
#endif
|
||||
// Detect C++17 compatible compiler.
|
||||
// __cplusplus >= 201703L - a compiler has support of 'static inline' variables.
|
||||
#if defined(FLATBUFFERS_USE_STD_OPTIONAL) \
|
||||
|| (defined(__cplusplus) && __cplusplus >= 201703L) \
|
||||
|| (defined(_MSVC_LANG) && (_MSVC_LANG >= 201703L))
|
||||
#include <optional>
|
||||
#ifndef FLATBUFFERS_USE_STD_OPTIONAL
|
||||
#define FLATBUFFERS_USE_STD_OPTIONAL
|
||||
#endif
|
||||
#endif // defined(FLATBUFFERS_USE_STD_OPTIONAL) ...
|
||||
|
||||
// The __cpp_lib_span is the predefined feature macro.
|
||||
#if defined(FLATBUFFERS_USE_STD_SPAN)
|
||||
#include <span>
|
||||
#elif defined(__cpp_lib_span) && defined(__has_include)
|
||||
#if __has_include(<span>)
|
||||
#include <span>
|
||||
#define FLATBUFFERS_USE_STD_SPAN
|
||||
#endif
|
||||
#else
|
||||
// Disable non-trivial ctors if FLATBUFFERS_SPAN_MINIMAL defined.
|
||||
#if !defined(FLATBUFFERS_TEMPLATES_ALIASES) || defined(FLATBUFFERS_CPP98_STL)
|
||||
#define FLATBUFFERS_SPAN_MINIMAL
|
||||
#else
|
||||
// Enable implicit construction of a span<T,N> from a std::array<T,N>.
|
||||
#include <array>
|
||||
#endif
|
||||
#endif // defined(FLATBUFFERS_USE_STD_SPAN)
|
||||
|
||||
// This header provides backwards compatibility for C++98 STLs like stlport.
|
||||
namespace flatbuffers {
|
||||
|
|
@ -144,6 +164,8 @@ inline void vector_emplace_back(std::vector<T> *vector, V &&data) {
|
|||
using conditional = std::conditional<B, T, F>;
|
||||
template<class T, T v>
|
||||
using integral_constant = std::integral_constant<T, v>;
|
||||
template <bool B>
|
||||
using bool_constant = integral_constant<bool, B>;
|
||||
#else
|
||||
// Map C++ TR1 templates defined by stlport.
|
||||
template <typename T> using is_scalar = std::tr1::is_scalar<T>;
|
||||
|
|
@ -167,6 +189,8 @@ inline void vector_emplace_back(std::vector<T> *vector, V &&data) {
|
|||
using conditional = std::tr1::conditional<B, T, F>;
|
||||
template<class T, T v>
|
||||
using integral_constant = std::tr1::integral_constant<T, v>;
|
||||
template <bool B>
|
||||
using bool_constant = integral_constant<bool, B>;
|
||||
#endif // !FLATBUFFERS_CPP98_STL
|
||||
#else
|
||||
// MSVC 2010 doesn't support C++11 aliases.
|
||||
|
|
@ -181,6 +205,8 @@ inline void vector_emplace_back(std::vector<T> *vector, V &&data) {
|
|||
struct conditional : public std::conditional<B, T, F> {};
|
||||
template<class T, T v>
|
||||
struct integral_constant : public std::integral_constant<T, v> {};
|
||||
template <bool B>
|
||||
struct bool_constant : public integral_constant<bool, B> {};
|
||||
#endif // defined(FLATBUFFERS_TEMPLATES_ALIASES)
|
||||
|
||||
#ifndef FLATBUFFERS_CPP98_STL
|
||||
|
|
@ -190,7 +216,7 @@ inline void vector_emplace_back(std::vector<T> *vector, V &&data) {
|
|||
// MSVC 2010 doesn't support C++11 aliases.
|
||||
// We're manually "aliasing" the class here as we want to bring unique_ptr
|
||||
// into the flatbuffers namespace. We have unique_ptr in the flatbuffers
|
||||
// namespace we have a completely independent implemenation (see below)
|
||||
// namespace we have a completely independent implementation (see below)
|
||||
// for C++98 STL implementations.
|
||||
template <class T> class unique_ptr : public std::unique_ptr<T> {
|
||||
public:
|
||||
|
|
@ -302,6 +328,346 @@ inline void vector_emplace_back(std::vector<T> *vector, V &&data) {
|
|||
|
||||
#endif // !FLATBUFFERS_CPP98_STL
|
||||
|
||||
#ifdef FLATBUFFERS_USE_STD_OPTIONAL
|
||||
template<class T>
|
||||
using Optional = std::optional<T>;
|
||||
using nullopt_t = std::nullopt_t;
|
||||
inline constexpr nullopt_t nullopt = std::nullopt;
|
||||
|
||||
#else
|
||||
// Limited implementation of Optional<T> type for a scalar T.
|
||||
// This implementation limited by trivial types compatible with
|
||||
// std::is_arithmetic<T> or std::is_enum<T> type traits.
|
||||
|
||||
// A tag to indicate an empty flatbuffers::optional<T>.
|
||||
struct nullopt_t {
|
||||
explicit FLATBUFFERS_CONSTEXPR_CPP11 nullopt_t(int) {}
|
||||
};
|
||||
|
||||
#if defined(FLATBUFFERS_CONSTEXPR_DEFINED)
|
||||
namespace internal {
|
||||
template <class> struct nullopt_holder {
|
||||
static constexpr nullopt_t instance_ = nullopt_t(0);
|
||||
};
|
||||
template<class Dummy>
|
||||
constexpr nullopt_t nullopt_holder<Dummy>::instance_;
|
||||
}
|
||||
static constexpr const nullopt_t &nullopt = internal::nullopt_holder<void>::instance_;
|
||||
|
||||
#else
|
||||
namespace internal {
|
||||
template <class> struct nullopt_holder {
|
||||
static const nullopt_t instance_;
|
||||
};
|
||||
template<class Dummy>
|
||||
const nullopt_t nullopt_holder<Dummy>::instance_ = nullopt_t(0);
|
||||
}
|
||||
static const nullopt_t &nullopt = internal::nullopt_holder<void>::instance_;
|
||||
|
||||
#endif
|
||||
|
||||
template<class T>
|
||||
class Optional FLATBUFFERS_FINAL_CLASS {
|
||||
// Non-scalar 'T' would extremely complicated Optional<T>.
|
||||
// Use is_scalar<T> checking because flatbuffers flatbuffers::is_arithmetic<T>
|
||||
// isn't implemented.
|
||||
static_assert(flatbuffers::is_scalar<T>::value, "unexpected type T");
|
||||
|
||||
public:
|
||||
~Optional() {}
|
||||
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 Optional() FLATBUFFERS_NOEXCEPT
|
||||
: value_(), has_value_(false) {}
|
||||
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 Optional(nullopt_t) FLATBUFFERS_NOEXCEPT
|
||||
: value_(), has_value_(false) {}
|
||||
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 Optional(T val) FLATBUFFERS_NOEXCEPT
|
||||
: value_(val), has_value_(true) {}
|
||||
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 Optional(const Optional &other) FLATBUFFERS_NOEXCEPT
|
||||
: value_(other.value_), has_value_(other.has_value_) {}
|
||||
|
||||
FLATBUFFERS_CONSTEXPR_CPP14 Optional &operator=(const Optional &other) FLATBUFFERS_NOEXCEPT {
|
||||
value_ = other.value_;
|
||||
has_value_ = other.has_value_;
|
||||
return *this;
|
||||
}
|
||||
|
||||
FLATBUFFERS_CONSTEXPR_CPP14 Optional &operator=(nullopt_t) FLATBUFFERS_NOEXCEPT {
|
||||
value_ = T();
|
||||
has_value_ = false;
|
||||
return *this;
|
||||
}
|
||||
|
||||
FLATBUFFERS_CONSTEXPR_CPP14 Optional &operator=(T val) FLATBUFFERS_NOEXCEPT {
|
||||
value_ = val;
|
||||
has_value_ = true;
|
||||
return *this;
|
||||
}
|
||||
|
||||
void reset() FLATBUFFERS_NOEXCEPT {
|
||||
*this = nullopt;
|
||||
}
|
||||
|
||||
void swap(Optional &other) FLATBUFFERS_NOEXCEPT {
|
||||
std::swap(value_, other.value_);
|
||||
std::swap(has_value_, other.has_value_);
|
||||
}
|
||||
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 FLATBUFFERS_EXPLICIT_CPP11 operator bool() const FLATBUFFERS_NOEXCEPT {
|
||||
return has_value_;
|
||||
}
|
||||
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 bool has_value() const FLATBUFFERS_NOEXCEPT {
|
||||
return has_value_;
|
||||
}
|
||||
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 const T& operator*() const FLATBUFFERS_NOEXCEPT {
|
||||
return value_;
|
||||
}
|
||||
|
||||
const T& value() const {
|
||||
FLATBUFFERS_ASSERT(has_value());
|
||||
return value_;
|
||||
}
|
||||
|
||||
T value_or(T default_value) const FLATBUFFERS_NOEXCEPT {
|
||||
return has_value() ? value_ : default_value;
|
||||
}
|
||||
|
||||
private:
|
||||
T value_;
|
||||
bool has_value_;
|
||||
};
|
||||
|
||||
template<class T>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 bool operator==(const Optional<T>& opt, nullopt_t) FLATBUFFERS_NOEXCEPT {
|
||||
return !opt;
|
||||
}
|
||||
template<class T>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 bool operator==(nullopt_t, const Optional<T>& opt) FLATBUFFERS_NOEXCEPT {
|
||||
return !opt;
|
||||
}
|
||||
|
||||
template<class T, class U>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 bool operator==(const Optional<T>& lhs, const U& rhs) FLATBUFFERS_NOEXCEPT {
|
||||
return static_cast<bool>(lhs) && (*lhs == rhs);
|
||||
}
|
||||
|
||||
template<class T, class U>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 bool operator==(const T& lhs, const Optional<U>& rhs) FLATBUFFERS_NOEXCEPT {
|
||||
return static_cast<bool>(rhs) && (lhs == *rhs);
|
||||
}
|
||||
|
||||
template<class T, class U>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 bool operator==(const Optional<T>& lhs, const Optional<U>& rhs) FLATBUFFERS_NOEXCEPT {
|
||||
return static_cast<bool>(lhs) != static_cast<bool>(rhs)
|
||||
? false
|
||||
: !static_cast<bool>(lhs) ? false : (*lhs == *rhs);
|
||||
}
|
||||
#endif // FLATBUFFERS_USE_STD_OPTIONAL
|
||||
|
||||
|
||||
// Very limited and naive partial implementation of C++20 std::span<T,Extent>.
|
||||
#if defined(FLATBUFFERS_USE_STD_SPAN)
|
||||
inline constexpr std::size_t dynamic_extent = std::dynamic_extent;
|
||||
template<class T, std::size_t Extent = std::dynamic_extent>
|
||||
using span = std::span<T, Extent>;
|
||||
|
||||
#else // !defined(FLATBUFFERS_USE_STD_SPAN)
|
||||
FLATBUFFERS_CONSTEXPR std::size_t dynamic_extent = static_cast<std::size_t>(-1);
|
||||
|
||||
// Exclude this code if MSVC2010 or non-STL Android is active.
|
||||
// The non-STL Android doesn't have `std::is_convertible` required for SFINAE.
|
||||
#if !defined(FLATBUFFERS_SPAN_MINIMAL)
|
||||
namespace internal {
|
||||
// This is SFINAE helper class for checking of a common condition:
|
||||
// > This overload only participates in overload resolution
|
||||
// > Check whether a pointer to an array of U can be converted
|
||||
// > to a pointer to an array of E.
|
||||
// This helper is used for checking of 'U -> const U'.
|
||||
template<class E, std::size_t Extent, class U, std::size_t N>
|
||||
struct is_span_convertable {
|
||||
using type =
|
||||
typename std::conditional<std::is_convertible<U (*)[], E (*)[]>::value
|
||||
&& (Extent == dynamic_extent || N == Extent),
|
||||
int, void>::type;
|
||||
};
|
||||
|
||||
} // namespace internal
|
||||
#endif // !defined(FLATBUFFERS_SPAN_MINIMAL)
|
||||
|
||||
// T - element type; must be a complete type that is not an abstract
|
||||
// class type.
|
||||
// Extent - the number of elements in the sequence, or dynamic.
|
||||
template<class T, std::size_t Extent = dynamic_extent>
|
||||
class span FLATBUFFERS_FINAL_CLASS {
|
||||
public:
|
||||
typedef T element_type;
|
||||
typedef T& reference;
|
||||
typedef const T& const_reference;
|
||||
typedef T* pointer;
|
||||
typedef const T* const_pointer;
|
||||
typedef std::size_t size_type;
|
||||
|
||||
static FLATBUFFERS_CONSTEXPR size_type extent = Extent;
|
||||
|
||||
// Returns the number of elements in the span.
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 size_type size() const FLATBUFFERS_NOEXCEPT {
|
||||
return count_;
|
||||
}
|
||||
|
||||
// Returns the size of the sequence in bytes.
|
||||
FLATBUFFERS_CONSTEXPR_CPP11
|
||||
size_type size_bytes() const FLATBUFFERS_NOEXCEPT {
|
||||
return size() * sizeof(element_type);
|
||||
}
|
||||
|
||||
// Checks if the span is empty.
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 bool empty() const FLATBUFFERS_NOEXCEPT {
|
||||
return size() == 0;
|
||||
}
|
||||
|
||||
// Returns a pointer to the beginning of the sequence.
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 pointer data() const FLATBUFFERS_NOEXCEPT {
|
||||
return data_;
|
||||
}
|
||||
|
||||
// Returns a reference to the idx-th element of the sequence.
|
||||
// The behavior is undefined if the idx is greater than or equal to size().
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 reference operator[](size_type idx) const {
|
||||
return data()[idx];
|
||||
}
|
||||
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 span(const span &other) FLATBUFFERS_NOEXCEPT
|
||||
: data_(other.data_), count_(other.count_) {}
|
||||
|
||||
FLATBUFFERS_CONSTEXPR_CPP14 span &operator=(const span &other)
|
||||
FLATBUFFERS_NOEXCEPT {
|
||||
data_ = other.data_;
|
||||
count_ = other.count_;
|
||||
}
|
||||
|
||||
// Limited implementation of
|
||||
// `template <class It> constexpr std::span(It first, size_type count);`.
|
||||
//
|
||||
// Constructs a span that is a view over the range [first, first + count);
|
||||
// the resulting span has: data() == first and size() == count.
|
||||
// The behavior is undefined if [first, first + count) is not a valid range,
|
||||
// or if (extent != flatbuffers::dynamic_extent && count != extent).
|
||||
FLATBUFFERS_CONSTEXPR_CPP11
|
||||
explicit span(pointer first, size_type count) FLATBUFFERS_NOEXCEPT
|
||||
: data_ (Extent == dynamic_extent ? first : (Extent == count ? first : nullptr)),
|
||||
count_(Extent == dynamic_extent ? count : (Extent == count ? Extent : 0)) {
|
||||
// Make span empty if the count argument is incompatible with span<T,N>.
|
||||
}
|
||||
|
||||
// Exclude this code if MSVC2010 is active. The MSVC2010 isn't C++11
|
||||
// compliant, it doesn't support default template arguments for functions.
|
||||
#if defined(FLATBUFFERS_SPAN_MINIMAL)
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 span() FLATBUFFERS_NOEXCEPT : data_(nullptr),
|
||||
count_(0) {
|
||||
static_assert(extent == 0 || extent == dynamic_extent, "invalid span");
|
||||
}
|
||||
|
||||
#else
|
||||
// Constructs an empty span whose data() == nullptr and size() == 0.
|
||||
// This overload only participates in overload resolution if
|
||||
// extent == 0 || extent == flatbuffers::dynamic_extent.
|
||||
// A dummy template argument N is need dependency for SFINAE.
|
||||
template<std::size_t N = 0,
|
||||
typename internal::is_span_convertable<element_type, Extent, element_type, (N - N)>::type = 0>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 span() FLATBUFFERS_NOEXCEPT : data_(nullptr),
|
||||
count_(0) {
|
||||
static_assert(extent == 0 || extent == dynamic_extent, "invalid span");
|
||||
}
|
||||
|
||||
// Constructs a span that is a view over the array arr; the resulting span
|
||||
// has size() == N and data() == std::data(arr). These overloads only
|
||||
// participate in overload resolution if
|
||||
// extent == std::dynamic_extent || N == extent is true and
|
||||
// std::remove_pointer_t<decltype(std::data(arr))>(*)[]
|
||||
// is convertible to element_type (*)[].
|
||||
template<std::size_t N,
|
||||
typename internal::is_span_convertable<element_type, Extent, element_type, N>::type = 0>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 span(element_type (&arr)[N]) FLATBUFFERS_NOEXCEPT
|
||||
: data_(arr), count_(N) {}
|
||||
|
||||
template<class U, std::size_t N,
|
||||
typename internal::is_span_convertable<element_type, Extent, U, N>::type = 0>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 span(std::array<U, N> &arr) FLATBUFFERS_NOEXCEPT
|
||||
: data_(arr.data()), count_(N) {}
|
||||
|
||||
//template<class U, std::size_t N,
|
||||
// int = 0>
|
||||
//FLATBUFFERS_CONSTEXPR_CPP11 span(std::array<U, N> &arr) FLATBUFFERS_NOEXCEPT
|
||||
// : data_(arr.data()), count_(N) {}
|
||||
|
||||
template<class U, std::size_t N,
|
||||
typename internal::is_span_convertable<element_type, Extent, U, N>::type = 0>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 span(const std::array<U, N> &arr) FLATBUFFERS_NOEXCEPT
|
||||
: data_(arr.data()), count_(N) {}
|
||||
|
||||
// Converting constructor from another span s;
|
||||
// the resulting span has size() == s.size() and data() == s.data().
|
||||
// This overload only participates in overload resolution
|
||||
// if extent == std::dynamic_extent || N == extent is true and U (*)[]
|
||||
// is convertible to element_type (*)[].
|
||||
template<class U, std::size_t N,
|
||||
typename internal::is_span_convertable<element_type, Extent, U, N>::type = 0>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11 span(const flatbuffers::span<U, N> &s) FLATBUFFERS_NOEXCEPT
|
||||
: span(s.data(), s.size()) {
|
||||
}
|
||||
|
||||
#endif // !defined(FLATBUFFERS_SPAN_MINIMAL)
|
||||
|
||||
private:
|
||||
// This is a naive implementation with 'count_' member even if (Extent != dynamic_extent).
|
||||
pointer const data_;
|
||||
const size_type count_;
|
||||
};
|
||||
|
||||
#if !defined(FLATBUFFERS_SPAN_MINIMAL)
|
||||
template<class U, std::size_t N>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11
|
||||
flatbuffers::span<U, N> make_span(U(&arr)[N]) FLATBUFFERS_NOEXCEPT {
|
||||
return span<U, N>(arr);
|
||||
}
|
||||
|
||||
template<class U, std::size_t N>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11
|
||||
flatbuffers::span<const U, N> make_span(const U(&arr)[N]) FLATBUFFERS_NOEXCEPT {
|
||||
return span<const U, N>(arr);
|
||||
}
|
||||
|
||||
template<class U, std::size_t N>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11
|
||||
flatbuffers::span<U, N> make_span(std::array<U, N> &arr) FLATBUFFERS_NOEXCEPT {
|
||||
return span<U, N>(arr);
|
||||
}
|
||||
|
||||
template<class U, std::size_t N>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11
|
||||
flatbuffers::span<const U, N> make_span(const std::array<U, N> &arr) FLATBUFFERS_NOEXCEPT {
|
||||
return span<const U, N>(arr);
|
||||
}
|
||||
|
||||
template<class U, std::size_t N>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11
|
||||
flatbuffers::span<U, dynamic_extent> make_span(U *first, std::size_t count) FLATBUFFERS_NOEXCEPT {
|
||||
return span<U, dynamic_extent>(first, count);
|
||||
}
|
||||
|
||||
template<class U, std::size_t N>
|
||||
FLATBUFFERS_CONSTEXPR_CPP11
|
||||
flatbuffers::span<const U, dynamic_extent> make_span(const U *first, std::size_t count) FLATBUFFERS_NOEXCEPT {
|
||||
return span<const U, dynamic_extent>(first, count);
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif // defined(FLATBUFFERS_USE_STD_SPAN)
|
||||
|
||||
} // namespace flatbuffers
|
||||
|
||||
#endif // FLATBUFFERS_STL_EMULATION_H_
|
||||
|
|
|
|||
Loading…
Reference in New Issue