fields.h#

namespace onnx_light

Alias that makes onnx-light headers compatible with code that references ONNX_LIGHT_NAMESPACE (the macro used in the standard onnx package).

Set to ONNX_LIGHT_NAMESPACE so both names resolve to the same namespace.

Symbol-visibility attribute for the public onnx-light C++ API.

Defined as empty because onnx-light does not require explicit __declspec(dllexport) or __attribute__((visibility("default"))) annotations — visibility is controlled at the shared-library level. The macro is provided so that vendored ONNX headers that decorate their declarations with ONNX_API compile without modification.

Namespace alias so that ONNX C++ code (and consumers such as onnxruntime) that refers to the literal onnx namespace — rather than the ONNX_NAMESPACE macro — resolves to the onnx-light namespace. The standard onnx package lives in namespace onnx; onnx-light uses onnx_light (via ONNX_LIGHT_NAMESPACE), so this alias keeps onnx-light a true drop-in. It is only introduced when the onnx-light namespace differs from onnx.

namespace utils#

Functions

inline bool is_inline_size(const PrintOptions &options, size_t size)#: Returns true if a repeated field of the given size should be printed inline on a single row.

template<typename T> RepeatedFieldBackInsertIterator<T> RepeatedFieldBackInserter(RepeatedField<T> *field)#: Creates a back-insert iterator for a RepeatedField.

template<typename T> class _OptionalField#

#include <fields.h>

Optional field wrapper for scalar values.

Public Functions

inline explicit _OptionalField()#: Constructs an empty optional field.

inline bool has_value() const#: Returns true if the field holds a value.

inline void reset()#: Releases the held value, leaving the field empty.

inline const T &operator*() const#: Dereferences to the held value (const).

inline T &operator*()#: Dereferences to the held value.

inline bool operator==(const _OptionalField<T> &v) const#: Returns true if the held value equals another optional field’s value.

inline bool operator==(const T &v) const#: Returns true if the held value equals v.

inline _OptionalField<T> &operator=(const T &other)#: Assigns a scalar value to the field.

inline void set_empty_value()#: Initializes the field with zero-cast value.

Protected Attributes

std::optional<T> value_#

template<typename T> class OptionalEnumField#

#include <fields.h>

Optional field wrapper for enum values.

Public Functions

inline explicit OptionalEnumField()#: Constructs an empty optional enum field.

inline bool has_value() const#: Returns true if the field holds a value.

inline void reset()#: Releases the held value, leaving the field empty.

inline const T &operator*() const#: Dereferences to the held value (const).

inline T &operator*()#: Dereferences to the held value.

inline bool operator==(const OptionalEnumField<T> &v) const#: Returns true if the held value equals another optional enum field’s value.

inline bool operator==(const T &v) const#: Returns true if the held value equals v.

inline OptionalEnumField<T> &operator=(const T &other)#: Assigns an enum value to the field.

inline void set_empty_value()#: Initializes the field with zero-cast enum value.

Protected Attributes

std::optional<T> value_#

template<typename T> class OptionalField#

#include <fields.h>

Optional field wrapper for message-like values.

Public Functions

inline explicit OptionalField()#: Constructs an empty optional field.

inline explicit OptionalField(const OptionalField<T> &copy)#: Constructs by copying another optional field.

inline OptionalField(OptionalField<T> &&move) noexcept#: Constructs by moving from another optional field.

inline bool has_value() const#: Returns true if the field holds a value.

inline void reset()#: Releases the held value, leaving the field empty.

T &operator*()#: Dereferences to the held value.

const T &operator*() const#: Dereferences to the held value (const).

OptionalField<T> &operator=(const T &other)#: Assigns a copy of the given value.

OptionalField<T> &operator=(const OptionalField<T> &other)#: Assigns from another optional field.

inline OptionalField<T> &operator=(OptionalField<T> &&other) noexcept#: Moves from another optional field.

void set_empty_value()#: Initializes the field with a default-constructed value.

Private Members

simple_unique_ptr<T> value_#

template<> class OptionalField<float> : public onnx_light::utils::_OptionalField<float>#

#include <fields.h>

Optional field specialization for float.

Public Functions

inline explicit OptionalField()#: Constructs an empty optional float field.

inline OptionalField<float> &operator=(const float &other)#: Assigns a float value to the field.

template<> class OptionalField<int32_t> : public onnx_light::utils::_OptionalField<int32_t>#

#include <fields.h>

Optional field specialization for int32_t.

Public Functions

inline explicit OptionalField()#: Constructs an empty optional int32_t field.

inline OptionalField<int32_t> &operator=(const int32_t &other)#: Assigns an int32_t value to the field.

template<> class OptionalField<int64_t> : public onnx_light::utils::_OptionalField<int64_t>#

#include <fields.h>

Optional field specialization for int64_t.

Public Functions

inline explicit OptionalField()#: Constructs an empty optional int64_t field.

inline OptionalField<int64_t> &operator=(const int64_t &other)#: Assigns an int64_t value to the field.

struct PrintOptions#

#include <fields.h>

Options that control how a proto message is printed.

Public Members

bool skip_raw_data = false#: If true, raw data will not be printed but skipped; tensors are not valid in that case but the model structure is still available.

int64_t raw_data_threshold = 1024#: If skip_raw_data is true, raw data will be printed only if it is larger than the threshold.

int64_t inline_threshold = 9#: Repeated fields with at most this many elements are printed as a bracketed list; all output is always flat (no newlines).

template<typename T> class RepeatedField#

#include <fields.h>

Repeated primitive field storage.

Public Functions

inline explicit RepeatedField()#: Constructs an empty field.

inline void reserve(size_t n)#: Reserves storage for at least n elements.

inline void Reserve(size_t n)#: Reserves storage for at least n elements (protobuf compat).

inline void clear()#: Removes all elements.

inline void Clear()#: Removes all elements.

inline std::vector<T>::const_iterator cbegin() const#: Returns a const iterator to the first element (protobuf compat).

inline std::vector<T>::const_iterator cend() const#: Returns a const iterator past the last element (protobuf compat).

inline bool empty() const#: Returns true if the field contains no elements.

inline size_t size() const#: Returns the number of elements.

inline T &operator[](size_t index)#: Returns a mutable reference to the element at the given index.

inline const T &Get(size_t index) const#: Returns a const reference to the element at the given index.

inline T *Mutable(size_t index)#: Returns a mutable reference to the owning pointer at the given index.

inline const std::vector<T> &values() const#: Returns a const reference to the underlying vector.

inline std::vector<T> &mutable_values()#: Returns a mutable reference to the underlying vector.

inline const T &operator[](size_t index) const#: Returns a const reference to the element at the given index.

inline void remove_range(size_t start, size_t stop, size_t step)#: Removes a contiguous range; currently only start=0, step=1, and stop=size() are supported.

inline void push_back(const T &v)#: Appends a copy of v at the end.

inline void extend(const std::vector<T> &v)#: Appends all elements from a vector.

inline void extend(const RepeatedField<T> &v)#: Appends all elements from another RepeatedField.

inline T &add()#

inline T *Add()#

template<class U> inline void Add(U &&v)#: Appends a single value (protobuf compat). Accepts anything convertible to T, including types with an explicit conversion (e.g. std::string -> utils::String).

template<class InputIt> inline void Add(InputIt first, InputIt last)#: Appends all elements in [first, last) (protobuf RepeatedField::Add range compat).

inline T &back()#: Returns a reference to the last element.

inline std::vector<T>::iterator begin()#: Returns a mutable iterator to the first element.

inline std::vector<T>::iterator end()#: Returns a mutable iterator past the last element.

inline std::vector<T>::const_iterator begin() const#: Returns a const iterator to the first element.

inline std::vector<T>::const_iterator end() const#: Returns a const iterator past the last element.

template<class ...Args> inline void emplace_back(Args&&... args)#: Constructs a new element in-place at the end.

inline T *data()#: Returns a pointer to the underlying data array.

inline const T *data() const#: Returns a const pointer to the underlying data array.

inline void Resize(size_t n, const T &value)#: Resizes the field to n elements, filling new slots with value.

inline void resize(size_t n)#: Resizes the field to n elements, default-constructing new slots.

template<typename InputIt> inline void Assign(InputIt first, InputIt last)#: Assigns the contents from an iterator range.

inline void CopyFrom(const RepeatedField<T> &other)#: Copies all elements from another RepeatedField.

inline int size_int() const#: Returns the number of elements as int (protobuf compat).

void PrintToStringStream(std::stringstream &ss, PrintOptions &options) const#: Writes string representations of the contained values to ss.

Private Members

std::vector<T> values_#

template<typename T> class RepeatedFieldBackInsertIterator#

#include <fields.h>

Output iterator that appends to a RepeatedField via push_back. Mirrors std::back_insert_iterator so it can back google::protobuf::RepeatedFieldBackInsertIterator as a pure alias.

Public Types

using iterator_category = std::output_iterator_tag#

using value_type = void#

using difference_type = std::ptrdiff_t#

using pointer = void#

using reference = void#

Public Functions

inline explicit RepeatedFieldBackInsertIterator(RepeatedField<T> *field)#: Wraps field; appended values go to its end.

inline RepeatedFieldBackInsertIterator &operator=(const T &value)#: Appends a copy of value.

inline RepeatedFieldBackInsertIterator &operator=(T &&value)#: Appends value (moved).

inline RepeatedFieldBackInsertIterator &operator*()#

inline RepeatedFieldBackInsertIterator &operator++()#

inline RepeatedFieldBackInsertIterator operator++(int)#

Private Members

RepeatedField<T> *field_#

template<typename T> class RepeatedProtoField#

#include <fields.h>

Repeated message field storage with owning pointers.

Public Functions

inline explicit RepeatedProtoField()#: Constructs an empty field.

inline RepeatedProtoField(const RepeatedField<T> &src)#: Constructs by copying elements from a value-storage RepeatedField<T>. This makes onnx-light’s value-based repeated fields (used for message entries such as StringStringEntryProto) usable wherever a protobuf RepeatedPtrField (== RepeatedProtoField) is expected by drop-in consumers such as onnxruntime, without changing the field’s own storage.

inline void reserve(size_t n)#: Reserves storage for at least n elements.

inline void Reserve(size_t n)#: Reserves storage for at least n elements (protobuf compat).

inline bool empty() const#: Returns true if the field contains no elements.

inline size_t size() const#: Returns the number of elements.

inline T &operator[](size_t index)#: Returns a mutable reference to the element at the given index.

inline const T &operator[](size_t index) const#: Returns a const reference to the element at the given index.

inline std::shared_ptr<T> &get(size_t index)#: Returns a mutable reference to the owning pointer at the given index.

inline std::shared_ptr<T> shared_at(size_t index) const#: Returns the shared pointer at the given index (shared ownership copy).

inline const T &Get(size_t index)#: Returns a mutable reference to the owning pointer at the given index.

inline T *Mutable(size_t index)#: Returns a mutable reference to the owning pointer at the given index.

inline void remove_range(size_t start, size_t stop, size_t step)#: Removes a contiguous range; currently only start=0, step=1, and stop=size() are supported.

void clear()#: Removes all elements.

inline void Clear()#: Removes all elements.

void push_back(const T &v)#: Appends a copy of v at the end.

void extend(const std::vector<T> &v)#: Appends all elements from a vector.

void extend(const RepeatedProtoField<T> &v)#: Appends all elements from another RepeatedProtoField by copy.

void extend(RepeatedProtoField<T> &&v)#: Appends all elements from another RepeatedProtoField by move (steals ownership).

T &add()#: Appends a default-constructed element and returns a reference to it.

inline T *Add()#: Appends a default-constructed element and returns a pointer to it.

inline void SwapElements(int i, int j)#: Swaps the elements at positions i and j (protobuf RepeatedPtrField::SwapElements compat).

template<class ...Args> inline void emplace_back(Args&&... args)#: Constructs a new element in-place at the end.

T &back()#: Returns a reference to the last element.

void PrintToStringStream(std::stringstream &ss, PrintOptions &options) const#: Writes string representations of the contained values to ss.

inline iterator begin()#: Returns a mutable iterator to the first element.

inline iterator end()#: Returns a mutable iterator past the last element.

inline pointer_iterator pointer_begin()#: Returns a pointer iterator to the first element.

inline pointer_iterator pointer_end()#: Returns a pointer iterator past the last element.

inline iterator erase(iterator it)#: Removes the element at the given iterator position and returns an iterator to the next element.

inline iterator erase(iterator first, iterator last)#: Removes the elements in [first, last) and returns an iterator to the element that followed the last removed element (protobuf RepeatedPtrField::erase compat).

inline const_iterator begin() const#: Returns a const iterator to the first element.

inline const_iterator end() const#: Returns a const iterator past the last element.

inline const_iterator cbegin() const#: Returns a const iterator to the first element (protobuf compat).

inline const_iterator cend() const#: Returns a const iterator past the last element (protobuf compat).

Private Members

std::vector<std::shared_ptr<T>> values_#

class const_iterator#

#include <fields.h>

Const iterator for repeated proto fields.

Public Functions

inline explicit const_iterator(const RepeatedProtoField<T> *parent, size_t pos = 0)#: Constructs a const iterator for parent starting at pos.

inline const_iterator &operator++()#: Advances the iterator to the next element.

inline bool operator==(const const_iterator &other) const#: Returns true if both iterators point to the same position in the same field.

inline bool operator!=(const const_iterator &other) const#: Returns true if the iterators differ.

inline const T &operator*() const#: Dereferences to the current element.

inline const T *operator->() const#

Private Members

const RepeatedProtoField<T> *parent_#

size_t pos_#

class iterator#

#include <fields.h>

Mutable iterator for repeated proto fields.

Public Functions

inline iterator(RepeatedProtoField<T> *parent, size_t pos = 0)#: Constructs an iterator for parent starting at pos.

inline iterator &operator++()#: Advances the iterator to the next element.

inline bool operator==(const iterator &other) const#: Returns true if both iterators point to the same position in the same field.

inline bool operator!=(const iterator &other) const#: Returns true if the iterators differ.

inline std::ptrdiff_t operator-(const iterator &other) const#: Returns the distance between two iterators (random-access compat).

inline iterator operator-(std::ptrdiff_t n) const#: Returns an iterator advanced backwards by n positions (random-access compat).

inline iterator operator+(std::ptrdiff_t n) const#: Returns an iterator advanced forwards by n positions (random-access compat).

inline T &operator*() const#: Dereferences to the current element.

inline T *operator->() const#

inline size_t pos() const#: Returns the current position index.

Private Members

RepeatedProtoField<T> *parent_#

size_t pos_#

class pointer_iterator#

#include <fields.h>

Iterator over raw element pointers (protobuf pointer_begin/pointer_end compat).

Public Types

using iterator_category = std::forward_iterator_tag#

using value_type = T*#

using difference_type = std::ptrdiff_t#

using pointer = T**#

using reference = T*#

Public Functions

inline pointer_iterator(RepeatedProtoField<T> *parent, size_t pos = 0)#: Constructs a pointer iterator for parent starting at pos.

inline pointer_iterator &operator++()#: Advances the iterator to the next element.

inline pointer_iterator operator++(int)#: Advances the iterator to the next element (post-increment).

inline bool operator==(const pointer_iterator &other) const#: Returns true if both iterators point to the same position in the same field.

inline bool operator!=(const pointer_iterator &other) const#: Returns true if the iterators differ.

inline T *operator*() const#: Dereferences to the raw pointer of the current element.

inline size_t pos() const#: Returns the current position index.

Private Members

RepeatedProtoField<T> *parent_#

size_t pos_#

template<typename T> class simple_unique_ptr#

#include <fields.h>

Minimal unique_ptr-like holder used by generated proto containers.

Public Functions

inline explicit simple_unique_ptr(T *ptr = nullptr)#: Constructs from a raw pointer (defaults to null); takes ownership if non-null.

inline ~simple_unique_ptr()#: Releases owned memory.

inline simple_unique_ptr(simple_unique_ptr &&other) noexcept#: Constructs by taking ownership from another instance.

inline simple_unique_ptr &operator=(simple_unique_ptr &&other) noexcept#: Transfers ownership from another instance.

inline bool isnull() const#: Returns true if the held pointer is null.

inline bool operator==(const simple_unique_ptr &other) const#: Returns true if both instances hold the same pointer.

inline bool operator!=(const simple_unique_ptr &other) const#: Returns true if the instances hold different pointers.

inline simple_unique_ptr(const simple_unique_ptr&)#: Deleted copy constructor; use move semantics instead.

inline simple_unique_ptr &operator=(const simple_unique_ptr&)#: Deleted copy assignment; use move semantics instead.

inline T *get() const#: Returns the raw pointer without releasing ownership.

inline T &operator*() const#: Dereferences the held pointer.

inline T *operator->() const#: Provides member access through the held pointer.

inline T &reset_and(T *new_ptr)#: Replaces the held pointer and returns a reference to the new object.

inline void reset(T *new_ptr = nullptr)#: Deletes the held object and optionally takes a new pointer.

Private Members

T *ptr_#