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122 lines
2.8 KiB
C++
122 lines
2.8 KiB
C++
//===-- tapi/Symbol.h - TAPI Symbol -----------------------------*- C++ -*-===*\
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// \brief Defines a symbol.
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/// \since 1.0
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///
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//===----------------------------------------------------------------------===//
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#ifndef TAPI_SYMBOL_H
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#define TAPI_SYMBOL_H
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#include "Defines.h"
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///
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/// \defgroup TAPI_SYMBOL Symbol API
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/// \ingroup TAPI_CPP_API
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///
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/// @{
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///
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TAPI_NAMESPACE_V1_BEGIN
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///
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/// \brief Symbol flags.
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/// \since 1.0
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///
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enum class SymbolFlags : unsigned {
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/// \brief No flags
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/// \since 1.0
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None = 0,
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/// \brief Thread-local value symbol
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/// \since 1.0
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ThreadLocalValue = 1U << 0,
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/// \brief Weak defined symbol
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/// \since 1.0
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WeakDefined = 1U << 1,
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/// \brief Weak referenced symbol
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/// \since 1.0
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WeakReferenced = 1U << 2,
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};
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inline SymbolFlags operator&(const SymbolFlags &lhs,
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const SymbolFlags &rhs) noexcept {
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return static_cast<SymbolFlags>(static_cast<unsigned>(lhs) &
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static_cast<unsigned>(rhs));
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}
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///
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/// \brief Provides query methods for symbols.
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/// \since 1.0
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///
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class TAPI_PUBLIC Symbol {
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public:
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template <typename Tp>
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Symbol(Tp &&name, SymbolFlags flags = SymbolFlags::None)
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: _name(std::forward<Tp>(name)), _flags(flags) {}
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///
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/// \brief Get the symbol name as string.
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/// \return A string with the symbol name.
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/// \since 1.0
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///
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inline const std::string &getName() const noexcept { return _name; }
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///
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/// \brief Obtain the symbol flags.
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/// \return Returns the symbol flags.
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/// \since 1.0
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///
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inline SymbolFlags getFlags() const noexcept { return _flags; }
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///
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/// \brief Query if the symbol is thread-local.
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/// \return True if the symbol is a thread-local value, false otherwise.
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/// \since 1.0
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///
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inline bool isThreadLocalValue() const noexcept {
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return (_flags & SymbolFlags::ThreadLocalValue) ==
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SymbolFlags::ThreadLocalValue;
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}
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///
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/// \brief Query if the symbol is weak defined.
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/// \return True if the symbol is weak defined, false otherwise.
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/// \since 1.0
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///
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inline bool isWeakDefined() const noexcept {
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return (_flags & SymbolFlags::WeakDefined) == SymbolFlags::WeakDefined;
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}
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///
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/// \brief Query if the symbol is weak referenced.
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/// \return True if the symbol is weak referenced, false otherwise.
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/// \since 1.0
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///
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inline bool isWeakReferenced() const noexcept {
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return (_flags & SymbolFlags::WeakReferenced) ==
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SymbolFlags::WeakReferenced;
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}
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private:
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std::string _name;
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SymbolFlags _flags;
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};
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TAPI_NAMESPACE_V1_END
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///
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/// @}
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///
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#endif // TAPI_SYMBOL_H
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