intial commit

2023-05-29 14:51:44 +02:00
commit da781b87f2
38 changed files with 4842 additions and 0 deletions
--- a/source/mijin/util/template_string.hpp
+++ b/source/mijin/util/template_string.hpp
@@ -0,0 +1,126 @@
+
+#pragma once
+
+#if !defined(MIJIN_UTIL_TEMPLATE_STRING_HPP_INCLUDED)
+#define MIJIN_UTIL_TEMPLATE_STRING_HPP_INCLUDED 1
+
+#include <utility>
+#include "../detect.hpp"
+
+namespace mijin
+{
+
+//
+// public defines
+//
+
+// #define MIJIN_MAKE_TEMPLATE_STRING(str) decltype(str ## _mijin_template_string)
+#define MIJIN_MAKE_TEMPLATE_STRING(str) \
+    mijin::impl::template_string_builder< \
+        mijin::impl::charAt<0>(str), \
+        mijin::impl::charAt<1>(str), \
+        mijin::impl::charAt<2>(str), \
+        mijin::impl::charAt<3>(str), \
+        mijin::impl::charAt<4>(str), \
+        mijin::impl::charAt<5>(str), \
+        mijin::impl::charAt<6>(str), \
+        mijin::impl::charAt<7>(str), \
+        mijin::impl::charAt<8>(str), \
+        mijin::impl::charAt<9>(str), \
+        mijin::impl::charAt<10>(str), \
+        mijin::impl::charAt<11>(str), \
+        mijin::impl::charAt<12>(str), \
+        mijin::impl::charAt<13>(str), \
+        mijin::impl::charAt<14>(str), \
+        mijin::impl::charAt<15>(str), \
+        mijin::impl::charAt<16>(str), \
+        mijin::impl::charAt<17>(str), \
+        mijin::impl::charAt<18>(str), \
+        mijin::impl::charAt<19>(str), \
+        mijin::impl::charAt<20>(str), \
+        mijin::impl::charAt<21>(str), \
+        mijin::impl::charAt<22>(str), \
+        mijin::impl::charAt<23>(str), \
+        mijin::impl::charAt<24>(str), \
+        mijin::impl::charAt<25>(str), \
+        mijin::impl::charAt<26>(str), \
+        mijin::impl::charAt<27>(str), \
+        mijin::impl::charAt<28>(str), \
+        mijin::impl::charAt<29>(str) \
+    >
+
+//
+// public constants
+//
+
+template<char... chars>
+using template_string = std::integer_sequence<char, chars...>;
+
+namespace impl
+{
+template<typename T>
+struct TemplateStringHelper;
+
+template<char... chars>
+struct TemplateStringHelper<template_string<chars...>>
+{
+    static constexpr const char value[sizeof...(chars) + 1] = {chars..., '\0'}; // NOLINT
+};
+
+template<char chr, char... chars>
+constexpr template_string<chr, chars...> prependToString(template_string<chars...>)
+{
+    return {};
+}
+
+template<char... chars>
+struct TemplateStringBuilder {};
+
+template<char firstChar, char... chars>
+struct TemplateStringBuilder<firstChar, chars...>
+{
+    using previous_seq_t = typename TemplateStringBuilder<chars...>::seq_t;
+    using seq_t = decltype(prependToString<firstChar>(previous_seq_t()));
+};
+
+template<char... chars>
+struct TemplateStringBuilder<'\0', chars...>
+{
+    using seq_t = template_string<>;
+};
+
+template<std::size_t pos, std::size_t len>
+constexpr char charAt(const char (&text)[len])
+{
+    if constexpr (pos < len) {
+        return text[pos];
+    }
+    else {
+        return '\0';
+    }
+}
+
+template<char... chars>
+typename TemplateStringBuilder<chars...>::seq_t buildTemplateString()
+{
+    return {};
+}
+
+template<char... chars>
+using template_string_builder = typename TemplateStringBuilder<chars...>::seq_t;
+}
+
+template<typename T>
+inline constexpr auto template_string_v = impl::TemplateStringHelper<T>::value;
+
+//
+// public types
+//
+
+//
+// public functions
+//
+
+} // namespace mijin
+
+#endif // !defined(MIJIN_UTIL_TEMPLATE_STRING_HPP_INCLUDED)