internal static IEdmFunctionImport ResolveOverloadsByParameterNames(ICollection <IEdmFunctionImport> functionImports, ICollection <string> parameters, string functionName)
{
DebugUtils.CheckNoExternalCallers();
IEdmFunctionImport candidateFunction = null;
foreach (IEdmFunctionImport functionImport in functionImports)
{
IEnumerable <IEdmFunctionParameter> parametersToMatch = functionImport.Parameters;
// bindable functions don't require the first parameter be specified, since its already implied in the path.
if (functionImport.IsBindable)
{
parametersToMatch = parametersToMatch.Skip(1);
}
// if any parameter count is different, don't consider it a match.
List <IEdmFunctionParameter> functionImportParameters = parametersToMatch.ToList();
if (functionImportParameters.Count != parameters.Count)
{
continue;
}
// if any parameter was missing, don't consider it a match.
if (functionImportParameters.Any(p => parameters.All(k => k != p.Name)))
{
continue;
}
if (candidateFunction == null)
{
candidateFunction = functionImport;
}
else
{
throw new ODataException(ODataErrorStrings.FunctionOverloadResolver_NoSingleMatchFound(functionName, string.Join(", ", parameters.ToArray())));
}
}
return(candidateFunction);
}