dart-lang/sdk

class DotnetInterop {
  final load_assembly_and_get_function_pointer_dart_fn loadAsmCb;
  static const unmanagedCallersOnly = 'UNMANAGED_CALLERS_ONLY';
  DotnetInterop(this.loadAsmCb);

  /// This function allows you to find static functions on the assembly
  /// at [assemblyPath], with the [typename] as an AssemblyQualifiedTypeName
  /// and a [methodName] with the name of the static method.
  /// You can optionally set a compatible delegate name in [delegateType],
  /// if you don't, the delegate will be generated with a default type of
  /// int MethodName(IntPtr args, int sizeInBytes)
  /// (Link to docs)[https://source.dot.net/#System.Private.CoreLib/src/libraries/System.Private.CoreLib/src/Internal/Runtime/InteropServices/ComponentActivator.cs,35]
  /// or if your function already has the UNMANAGED_CALLERS_ONLY annotation,
  /// use [DotnetInterop.unmanagedCallersOnly] and otherwise call it as usual.
  DF loadAssemblyAndGetFunctionPointer<NF extends Function,
          @DartRepresentationOf('NF') DF>(
      String assemblyPath, String typeName, String methodName,
      [String? delegateType]) {
    final functionPointer = _loadAssemblyAndGetFunctionPointer(
      assemblyPath,
      typeName,
      methodName,
      delegateType,
    );
    return functionPointer.cast<NativeFunction<NF>>().asFunction<DF>();
  }
}