Reorganize everything

asl/strings/string.hpp

@@ -0,0 +1,77 @@
+#pragma once
+
+#include "asl/containers/buffer.hpp"
+#include "asl/strings/string_view.hpp"
+
+namespace asl
+{
+
+template<allocator Allocator = DefaultAllocator>
+class string
+{
+    buffer<char, Allocator> m_buffer;
+
+    explicit constexpr string(buffer<char, Allocator>&& buffer) :
+        m_buffer{ASL_MOVE(buffer)}
+    {}
+
+    template<allocator A>
+    friend class StringBuilder;
+
+public:
+    constexpr string() requires default_constructible<Allocator> = default;
+    explicit constexpr string(Allocator allocator) : m_buffer{ASL_MOVE(allocator)} {}
+
+    // NOLINTNEXTLINE(*-explicit-conversions)
+    constexpr string(string_view sv)
+        requires default_constructible<Allocator>
+        : m_buffer{sv.as_span()}
+    {}
+
+    constexpr string(string_view sv, Allocator allocator)
+        : m_buffer{sv.as_span(), ASL_MOVE(allocator)}
+    {}
+
+    constexpr ~string() = default;
+
+    constexpr string(const string&) requires copy_constructible<Allocator> = default;
+    constexpr string(string&&) = default;
+
+    constexpr string& operator=(const string&) requires copy_assignable<Allocator> = default;
+    constexpr string& operator=(string&&) = default;
+
+    constexpr isize_t size() const { return m_buffer.size(); }
+    constexpr const char* data() const { return m_buffer.data(); }
+
+    // NOLINTNEXTLINE(*-explicit-conversions)
+    constexpr operator string_view() const
+    {
+        return as_string_view();
+    }
+
+    constexpr string_view as_string_view() const
+    {
+        auto span = m_buffer.as_span();
+        return string_view{span.data(), span.size()};
+    }
+
+    constexpr bool operator==(const string& other) const
+    {
+        return as_string_view() == other.as_string_view();
+    }
+
+    constexpr bool operator==(string_view other) const
+    {
+        return as_string_view() == other;
+    }
+
+    template<typename H>
+    friend H AslHashValue(H h, const string& str)
+    {
+        return H::combine(h, str.as_string_view());
+    }
+};
+
+string() -> string<>;
+
+} // namespace asl