/// <summary>
/// Returns Code contract based preconditions only for specified <paramref name="functionDeclaration"/>.
/// </summary>
public static IEnumerable <ContractRequires> GetRequires(this ICSharpFunctionDeclaration functionDeclaration)
{
Contract.Requires(functionDeclaration != null);
Contract.Ensures(Contract.Result <IEnumerable <ContractRequires> >() != null);
return(functionDeclaration.GetPreconditions().OfType <ContractRequires>());
}
private bool IsArgumentAlreadyVerifiedByPrecondition(
ICSharpFunctionDeclaration functionDeclaration, string parameterName)
{
return(functionDeclaration.GetPreconditions()
.Any(p => p.ChecksForNotNull(parameterName)));
}