ast::VariantVector类 参考

#include <VariantVector.hpp>

类
struct	TypeOps

Public 成员函数
	VariantVector (const VariantVector &other)
VariantVector &	operator= (const VariantVector &other)
	VariantVector (VariantVector &&other) noexcept
VariantVector &	operator= (VariantVector &&other) noexcept
size_t	size () const noexcept
size_t	capacity () const noexcept
bool	empty () const noexcept
const std::type_info &	elementType () const noexcept
bool	hasType () const noexcept
size_t	elementSize () const noexcept
const TypeOps *	ops () const noexcept
void *	data () noexcept
const void *	data () const noexcept
template<typename T >
void	reserve (size_t n)
template<typename T >
void	resize (size_t n)
template<typename T >
void	resize (size_t n, const T &value)
template<typename T >
void	reset (size_t n)
template<typename T >
void	reset (size_t n, const T &value)
template<typename T >
void	pushBack (const T &value)
template<typename T , typename... Args>
void	emplaceBack (Args &&... args)
void	clear ()
void	shrinkToFit ()
template<typename T >
T *	as ()
template<typename T >
const T *	as () const
template<typename T >
Span< T >	asSpan ()
template<typename T >
Span< const T >	asSpan () const
template<typename T >
T &	at (size_t i)
template<typename T >
const T &	at (size_t i) const
template<typename T >
T *	begin ()
template<typename T >
const T *	begin () const
template<typename T >
T *	end ()
template<typename T >
const T *	end () const
void	swap (VariantVector &other) noexcept

静态 Public 成员函数
template<typename T >
static VariantVector	fromVector (const std::vector< T > &vec)

详细描述

变类型向量容器

该类可以存储不同数据类型的向量，无需在编译时指定具体类型， 但一次只能存储一种特定类型的数据。

类型元数据（TypeOps*、type_info*、elementSize）嵌入在分配块头部， data_ 指针永远指向第一个元素。data_ == nullptr 表示未设置类型。

使用方式：

VariantVector v;
v.resize<double>(100);        // 首次调用确定类型为 double
v[0] = 3.14;                  // 类型安全访问
assert(v.elementType() == typeid(double));

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该类的文档由以下文件生成:

• src/AstUtil/Container/VariantVector.hpp
• src/AstUtil/Container/VariantVector.cpp