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const-correctness since nobody is going to let me be fuckin' lazy .-.

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This commit is contained in:
ThePhD 2016-04-24 17:31:32 -04:00
parent 976f236706
commit f15f8dd5a7
1 changed files with 15 additions and 14 deletions
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29
sol/variadic_args.hpp
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@ -28,7 +28,8 @@
#include <iterator> #include <iterator>
namespace sol { namespace sol {
struct va_iterator : std::iterator<std::random_access_iterator_tag, stack_proxy, std::ptrdiff_t, stack_proxy*, stack_proxy> { template <bool is_const>
struct va_iterator : std::iterator<std::random_access_iterator_tag, std::conditional_t<is_const, const stack_proxy, stack_proxy>, std::ptrdiff_t, std::conditional_t<is_const, const stack_proxy*, stack_proxy*>, std::conditional_t<is_const, const stack_proxy, stack_proxy>> {
lua_State* L; lua_State* L;
int index; int index;
int stacktop; int stacktop;
@ -37,12 +38,11 @@ namespace sol {
va_iterator() : L(nullptr), index(std::numeric_limits<int>::max()), stacktop(std::numeric_limits<int>::max()) {} va_iterator() : L(nullptr), index(std::numeric_limits<int>::max()), stacktop(std::numeric_limits<int>::max()) {}
va_iterator(lua_State* L, int index, int stacktop) : L(L), index(index), stacktop(stacktop), sp(L, index) {} va_iterator(lua_State* L, int index, int stacktop) : L(L), index(index), stacktop(stacktop), sp(L, index) {}
stack_proxy operator*() { reference operator*() {
sp = stack_proxy(L, index); return stack_proxy(L, index);
return sp;
} }
stack_proxy* operator->() { pointer operator->() {
sp = stack_proxy(L, index); sp = stack_proxy(L, index);
return &sp; return &sp;
} }
@ -89,7 +89,7 @@ namespace sol {
return r; return r;
} }
stack_proxy operator[](difference_type idx) { reference operator[](difference_type idx) {
return stack_proxy(L, index + static_cast<int>(idx)); return stack_proxy(L, index + static_cast<int>(idx));
} }
@ -123,8 +123,9 @@ namespace sol {
return index >= r.index; return index >= r.index;
} }
}; };
inline va_iterator operator+(typename va_iterator::difference_type n, const va_iterator& r) { template <bool is_const>
inline va_iterator<is_const> operator+(typename va_iterator<is_const>::difference_type n, const va_iterator<is_const>& r) {
return r + n; return r + n;
} }
@ -140,8 +141,8 @@ public:
typedef stack_proxy* pointer; typedef stack_proxy* pointer;
typedef std::ptrdiff_t difference_type; typedef std::ptrdiff_t difference_type;
typedef std::size_t size_type; typedef std::size_t size_type;
typedef va_iterator iterator; typedef va_iterator<false> iterator;
typedef const va_iterator const_iterator; typedef va_iterator<true> const_iterator;
typedef std::reverse_iterator<iterator> reverse_iterator; typedef std::reverse_iterator<iterator> reverse_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator; typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
@ -170,10 +171,10 @@ public:
return *this; return *this;
} }
iterator begin() { return va_iterator(L, index, stacktop + 1); } iterator begin() { return iterator(L, index, stacktop + 1); }
iterator end() { return va_iterator(L, stacktop + 1, stacktop + 1); } iterator end() { return iterator(L, stacktop + 1, stacktop + 1); }
const_iterator begin() const { return va_iterator(L, index, stacktop + 1); } const_iterator begin() const { return const_iterator(L, index, stacktop + 1); }
const_iterator end() const { return va_iterator(L, stacktop + 1, stacktop + 1); } const_iterator end() const { return const_iterator(L, stacktop + 1, stacktop + 1); }
const_iterator cbegin() const { return begin(); } const_iterator cbegin() const { return begin(); }
const_iterator cend() const { return end(); } const_iterator cend() const { return end(); }