/// <summary>
/// Creates a new ArgCantBeCombinedWith hook given an expression. This can either be an alias argument or a boolean expression of arguments (e.g. Argument1 | Argument2). Valid operators are
/// and '&', or '|', and not '!'. Grouping with parentheses is also supported. Example: "(Argument1 & Argumrnt2) | Argument3".
/// If the expression evaluates to true after all arguments have been populated then an UnexpectedArgumentException is thrown.
/// </summary>
/// <param name="expression">This can either be an alias argument or a boolean expression of arguments (e.g. Argument1 | Argument2). Valid operators are
/// and '&', or '|', and not '!'. Grouping with parentheses is also supported. Example: "(Argument1 & Argumrnt2) | Argument3".</param>
public ArgCantBeCombinedWith(string expression)
{
this.AfterPopulatePropertiesPriority = 1;
try
{
this.Expression = BooleanExpressionParser.Parse(expression);
this.ExpressionText = expression;
}
catch (Exception ex)
{
throw new InvalidArgDefinitionException("Exception parsing conditional ArgCantBeCombinedWith expression '" + expression + "' - " + ex.Message);
}
}
private void Evaluate(ArgHook.HookContext context, string expressionText, bool not)
{
try
{
var newExpressionText = expressionText;
if (not)
{
newExpressionText = "!(" + expressionText + ")";
}
var expression = BooleanExpressionParser.Parse(newExpressionText);
var eval = expression.Evaluate(context.Definition.CreateVariableResolver());
if (not)
{
if (eval == true && context.CurrentArgument.RevivedValue == null)
{
if (TryPreventExceptionWithPrompt(context) == false)
{
throw new MissingArgException("The argument '" + context.CurrentArgument.DefaultAlias + "' is required if the following argument(s) are not specified: " + expressionText);
}
}
}
else
{
if (eval == true && context.CurrentArgument.RevivedValue == null)
{
if (TryPreventExceptionWithPrompt(context) == false)
{
throw new MissingArgException("The argument '" + context.CurrentArgument.DefaultAlias + "' is required if the following argument(s) are specified: " + expressionText);
}
}
}
}
catch (MissingArgException)
{
throw;
}
catch (REPLContinueException)
{
throw;
}
catch (Exception ex)
{
var targetText = context.CurrentArgument.DefaultAlias + " (" + expressionText + ")";
throw new InvalidArgDefinitionException("Failed to evaluate conditional ArgRequired clause on target '" + targetText + "'" + ex.Message);
}
}