106 lines
2.5 KiB
C++
106 lines
2.5 KiB
C++
#ifndef LIBCUBESCRIPT_STD_HH
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#define LIBCUBESCRIPT_STD_HH
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#include <cubescript/cubescript.hh>
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#include <cstddef>
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#include <new>
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#include <utility>
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#include <vector>
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#include <type_traits>
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#include <string_view>
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#include "cs_state.hh"
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namespace cubescript {
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/* a value buffer */
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template<typename T>
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struct valbuf {
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valbuf() = delete;
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valbuf(internal_state *cs): buf{std_allocator<T>{cs}} {}
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using size_type = std::size_t;
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using value_type = T;
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using reference = T &;
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using const_reference = T const &;
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void reserve(std::size_t s) { buf.reserve(s); }
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void resize(std::size_t s) { buf.resize(s); }
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void resize(std::size_t s, value_type const &v) {
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buf.resize(s, v);
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}
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void append(T const *beg, T const *end) {
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buf.insert(buf.end(), beg, end);
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}
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void insert(std::size_t i, T const &it) {
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buf.insert(buf.begin() + i, it);
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}
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template<typename ...A>
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reference emplace_back(A &&...args) {
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return buf.emplace_back(std::forward<A>(args)...);
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}
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void push_back(T const &v) { buf.push_back(v); }
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void pop_back() { buf.pop_back(); }
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T &back() { return buf.back(); }
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T const &back() const { return buf.back(); }
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std::size_t size() const { return buf.size(); }
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std::size_t capacity() const { return buf.capacity(); }
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bool empty() const { return buf.empty(); }
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void clear() { buf.clear(); }
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T &operator[](std::size_t i) { return buf[i]; }
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T const &operator[](std::size_t i) const { return buf[i]; }
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T *data() { return &buf[0]; }
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T const *data() const { return &buf[0]; }
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std::vector<T, std_allocator<T>> buf;
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};
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/* specialization of value buffer for bytes */
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struct charbuf: valbuf<char> {
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charbuf(internal_state *cs): valbuf<char>{cs} {}
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charbuf(state &cs);
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charbuf(thread_state &ts);
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void append(char const *beg, char const *end) {
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valbuf<char>::append(beg, end);
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}
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void append(std::string_view v) {
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append(&v[0], &v[v.size()]);
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}
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std::string_view str() {
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return std::string_view{buf.data(), buf.size()};
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}
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std::string_view str_term() {
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return std::string_view{buf.data(), buf.size() - 1};
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}
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};
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/* because the dual-iterator constructor is not supported everywhere
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* and the pointer + size constructor is ugly as heck
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*/
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inline std::string_view make_str_view(char const *a, char const *b) {
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return std::string_view{a, std::size_t(b - a)};
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}
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} /* namespace cubescript */
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#endif
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