/// <summary>
/// Initializes a new instance of the <see cref="NativeString"/> struct.
/// </summary>
/// <param name="span">The span to copy.</param>
/// <param name="allocator">The allocator.</param>
public NativeString(ReadOnlySpan <char> span, Allocator allocator)
{
if (span.IsEmpty)
{
this = default;
return;
}
char *src = (char *)Unsafe.AsPointer(ref MemoryMarshal.GetReference(span));
this = new NativeString(src, span.Length, allocator);
}
/// <summary>
/// Initializes a new instance of the <see cref="NativeString"/> struct.
/// </summary>
/// <param name="str">The string to copy.</param>
/// <param name="allocator">The allocator.</param>
public NativeString(string str, Allocator allocator)
{
if (string.IsNullOrEmpty(str))
{
this = default;
return;
}
fixed(char *p = str)
{
int length = str.Length;
this = new NativeString(p, length, allocator);
}
}
private NativeString(ref NativeString str)
{
if (!str.IsValid)
{
throw new ArgumentException("string is invalid");
}
Allocator allocator = str.GetAllocator() !;
char * buffer = allocator.Allocate <char>(str._length);
Unsafe.CopyBlockUnaligned(buffer, str._buffer, (uint)(sizeof(char) * str._length));
_buffer = buffer;
_length = str._length;
_allocatorID = str._allocatorID;
}