NoWrap questions
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评估
调研方向
Start by reproducing the two NoWrap examples in the issue: the opaque-pointer typedef and the function-pointer typedef, then inspect the corresponding code-generation path. Separately trace how generated function, type, and constant names are chosen. Done means the intended NoWrap behavior and prefix-removal options are agreed and covered by focused generation tests.
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描述
First off thanks for this incredible library it's mostly easy to use and works well. I do have some questions though regarding the NoWrap option.
- When using nowrap for an opaque ptr typedef it still wraps for example:
typedef struct Test Test;
Will result in
[global::System.Runtime.InteropServices.StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
public readonly partial struct Test : IEquatable<native.Test >
{
public Test(nint handle) => Handle = handle;
public nint Handle { get; }
public bool Equals(Test other) => Handle.Equals(other.Handle);
public override bool Equals(object obj) => obj is Test other && Equals(other);
public override int GetHashCode() => Handle.GetHashCode();
public override string ToString() => "0x" + (nint.Size == 8 ? Handle.ToString("X16") : Handle.ToString("X8"));
public static bool operator ==(Test left, Test right) => left.Equals(right);
public static bool operator !=(Testleft, Testright) => !left.Equals(right);
}
Is it possible to just ignore the typedef if it is an opaque ptr and just use nint whenever it is used as a parameter or member?
- When using nowrap for an function pointer typedef. it does not generate a type at all, for example:
typedef void (*Testfun)(int arg1, const char* arg2);
gets ignored and functions using it as param get the following signature
public static partial delegate*unmanaged[Cdecl]<int, byte*, void> setTestCallback(delegate*unmanaged[Cdecl]<int, byte*, void> callback);
Would it be possible to just not wrap it and add the delegate to the main class directly like so:
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void Testfun(int arg1, const char* arg2);
And lastly maybe a bit unrelated question but what would be the easiest way to change the names of functions, types and constants?Within a c library they often prefix a library name as a sort of namespace, In c# this would be unnecessary as you already have both the namespace and the class. Is there a built-in way to remove such a suffix? for example testInit() to just Init() where test is the prefix?
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