Namespace for Unsafe is not imported in the generated code

[rlaf99]

clangsharppinvokegenerator --version

ClangSharp P/Invoke Binding Generator version 20.1.2
  clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
  clangsharp version 20.1.2

When generating for the following code from (https://github.com/libgit2/libgit2/blob/5ab90d3c273766c81fefb7d156574a87c0f9fb01/include/git2/sys/credential.h#L40C1-L43C3)

struct git_credential_username {
	git_credential parent; /**< The parent credential */
	char username[1];      /**< The username to authenticate as */
};

The generated code is like

...
        [NativeTypeName("char[1]")]
        public _username_e__FixedBuffer username;

        public partial struct _username_e__FixedBuffer
        {
            public sbyte e0;

            [UnscopedRef]
            public ref sbyte this[int index]
            {
                get
                {
                    return ref Unsafe.Add(ref e0, index);
                }
            }

            [UnscopedRef]
            public Span<sbyte> AsSpan(int length) => MemoryMarshal.CreateSpan(ref e0, length);
        }

However, System.Runtime.CompilerServices, the namespace that contains Unsafe, is not imported in the generated code.

[yaqian256]

This is the same issue as described in #604

[tannergooding]

This should be a relatively easy fix if anyone wants to do so. Just a missing call to the relevant withusing API as part of writing Unsafe.Add

You can use the --with-using command line input to workaround it in the interim

[rlaf99]

Thanks.

In my case, I solved it with the following extra lines in response file:

--with-using
git_credential_username=System.Runtime.CompilerServices

[yaqian256]

This should be a relatively easy fix if anyone wants to do so. Just a missing call to the relevant withusing API as part of writing Unsafe.Add

You can use the --with-using command line input to workaround it in the interim

@tannergooding, I prepared a PR for it - #610