private static bool?IsCoroutine(IMethodDeclaration methodDeclaration, UnityApi unityApi)
{
if (methodDeclaration == null)
{
return(null);
}
if (!methodDeclaration.IsFromUnityProject())
{
return(null);
}
var method = methodDeclaration.DeclaredElement;
if (method == null)
{
return(null);
}
var function = unityApi.GetUnityEventFunction(method);
if (function == null || !function.Coroutine)
{
return(null);
}
var type = method.ReturnType.GetScalarType();
if (type == null)
{
return(null);
}
return(Equals(type.GetClrName(), PredefinedType.IENUMERATOR_FQN));
}