CYBUTF16String.cpp

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#include "CYB.hpp"

char* CYB::API::String::UTF16::SetupData(const UTF8& AUTF8, unsigned long long& ALengthReference) {
    const auto BufferSize(Core().FModuleManager.Call<CYB::Platform::Modules::Kernel32::MultiByteToWideChar>(CYB::Platform::Win32::UINT(CP_UTF8), CYB::Platform::Win32::DWORD(0), AUTF8.CString(), -1, nullptr, 0));
    ALengthReference = BufferSize * sizeof(wchar_t);
    Assert::LessThan<unsigned long long>(ALengthReference, static_cast<unsigned long long>(std::numeric_limits<int>::max()));
    auto NewData(static_cast<wchar_t*>(Context().FAllocator.FHeap.Alloc(static_cast<int>(ALengthReference))));
    if (CYB::Core().FModuleManager.Call<CYB::Platform::Modules::Kernel32::MultiByteToWideChar>(CYB::Platform::Win32::UINT(CP_UTF8), CYB::Platform::Win32::DWORD(0), AUTF8.CString(), -1, NewData, BufferSize) == 0) {
        Context().FAllocator.FHeap.Free(NewData);
        throw Exception::SystemData(Exception::SystemData::STRING_VALIDATION_FAILURE);
    }
    return reinterpret_cast<char*>(NewData);
}
CYB::API::String::UTF8 CYB::API::String::UTF16::ToUTF8(const wchar_t* AWString) {
    const auto BufferSize(CYB::Core().FModuleManager.Call<CYB::Platform::Modules::Kernel32::WideCharToMultiByte>(CYB::Platform::Win32::UINT(CP_UTF8), CYB::Platform::Win32::DWORD(0), AWString, -1, nullptr, 0, nullptr, nullptr));
    auto NewData(static_cast<char*>(Context().FAllocator.FHeap.Alloc(BufferSize)));
    if (NewData != nullptr && Core().FModuleManager.Call<CYB::Platform::Modules::Kernel32::WideCharToMultiByte>(CYB::Platform::Win32::UINT(CP_UTF8), CYB::Platform::Win32::DWORD(0), AWString, -1, NewData, BufferSize, nullptr, nullptr) == 0)
        throw Exception::SystemData(Exception::SystemData::STRING_VALIDATION_FAILURE);
    return UTF8(FromData(NewData));
}

CYB::API::String::UTF16::UTF16(const UTF8& AUTF8) :
    UTF16(AUTF8, 0)
{}

CYB::API::String::UTF16::UTF16(const UTF8& AUTF8, unsigned long long ALengthReference) :
    Dynamic(SetupData(AUTF8, ALengthReference))
{
    API::Assert::LessThan(ALengthReference, static_cast<unsigned long long>(std::numeric_limits<int>::max()));
    FLength = static_cast<int>(ALengthReference);
}

wchar_t* CYB::API::String::UTF16::WideData(void) noexcept {
    return reinterpret_cast<wchar_t*>(FData);
}
const wchar_t* CYB::API::String::UTF16::WString(void) const noexcept {
    return reinterpret_cast<const wchar_t*>(FData);
}