internal_symbol.h

Defines

FORALL_BUILTIN_SYMBOLS(_)

Defines the builtin interned symbols used by ONNX graph rewriting code.

The macro expands to both enum values and string-mapping switch cases in internal_symbol.cc, keeping the canonical symbol list in one place.

DEFINE_SYMBOL(s)

namespace ONNX_LIGHT_NAMESPACE

Enums

enum BuiltinSymbol

Values:

enumerator kLastSymbol

Functions

static inline bool operator==(Symbol lhs, Symbol rhs)

static inline bool operator==(BuiltinSymbol lhs, Symbol rhs)

static inline bool operator==(Symbol lhs, BuiltinSymbol rhs)

inline Symbol operator""_sym(const char *s, size_t)

Creates a Symbol from a string literal, for example “axis”_sym.

struct Symbol

#include <internal_symbol.h>

Represents a lightweight interned symbol identifier.

Builtin symbols map to BuiltinSymbol values. Non-builtin symbols are added on demand by a process-wide string interning table.

Public Functions

Symbol() = default

inline Symbol(BuiltinSymbol value)

Creates a symbol from a builtin symbol value.

explicit Symbol(const std::string &s)

Creates a symbol by interning the corresponding string value.

inline explicit Symbol(uint32_t value)

Creates a symbol from a raw symbol identifier.

inline operator uint32_t() const

Returns the symbol identifier as an integer.

const char *toString() const

Returns the string representation of this symbol.

Private Members

uint32_t value = {0}

namespace std

template<>
struct hash<ONNX_LIGHT_NAMESPACE::Symbol>

Public Functions

inline std::size_t operator()(ONNX_LIGHT_NAMESPACE::Symbol s) const

Hashes the numeric symbol identifier.