/// <summary>
/// Get the parameter Asts from a function definition Ast.
///
/// If not parameters are found, return null.
/// </summary>
public static IEnumerable <ParameterAst> GetParameterAsts(
this FunctionDefinitionAst functionDefinitionAst)
{
ParamBlockAst paramBlockAst;
return(functionDefinitionAst.GetParameterAsts(out paramBlockAst));
}
private IEnumerable <ParameterAst> GetMandatoryParameters(FunctionDefinitionAst functionDefinitionAst)
{
return(functionDefinitionAst.GetParameterAsts()?.Where(IsParameterMandatory) ??
Enumerable.Empty <ParameterAst>());
}