/// <summary>
/// Add a given argument key-value pair
/// </summary>
/// <param name="argumentKey">The type of argument to add</param>
/// <param name="argumentValue">The value of the argument to add</param>
/// <returns>Previous argument value if any, otherwise null</returns>
private string AddArgument(PossibleArgument argumentKey, string argumentValue)
{
Contract.Ensures(this.programArguments.ContainsKey(argumentKey));
// Special case -- there is a default value for save-location but should only
// be set if and only if the option is supplied with no value.
if (argumentKey == PossibleArgument.save_program && argumentValue == null)
{
argumentValue = CeleriacArgs.DefaultSaveProgramLocation;
}
string oldVal = null;
if (this.programArguments.ContainsKey(argumentKey))
{
this.programArguments.TryGetValue(argumentKey, out oldVal);
this.programArguments.Remove(argumentKey);
}
this.programArguments.Add(argumentKey, argumentValue);
return(oldVal);
}
/// <summary>
/// Tries to get the value of the given program argument
/// </summary>
/// <param name="possibleArg">The program to get the argument of</param>
/// <param name="value">The value of the argument if it exists, otherwise null</param>
/// <returns>The argument's value if it has been specified, otherwise null</returns>
private bool TryGetArgumentValue(PossibleArgument possibleArg, out string value)
{
return(this.programArguments.TryGetValue(possibleArg, out value));
}
/// <summary>
/// Whether the given argument was specified
/// </summary>
/// <param name="possibleArg">The argument type to check</param>
/// <returns>True if the argument was specified, otherwise false</returns>
private bool IsArgumentSpecified(PossibleArgument possibleArg)
{
return(this.programArguments.ContainsKey(possibleArg));
}
