public static void GetBounds(this Range range, RunTimeEnvironment rte, out int start, out int count)
{
if (range.IsDefined)
{
var lowLine = new Line(range.Min, new Nop());
var highLine = new Line(range.Max, new Nop());
var lowIndex = rte.BinarySearch(lowLine);
var highIndex = rte.BinarySearch(highLine);
if (lowIndex < 0)
{
lowIndex = ~lowIndex;
}
if (highIndex < 0)
{
highIndex = ~highIndex - 1;
}
start = lowIndex;
count = highIndex - lowIndex + 1;
}
else
{
start = 0;
count = rte.Lines.Count;
}
}
/// <summary>
/// Creates an instance of Read-Evaluate-Print loop object.
/// </summary>
/// <param name="rte"></param>
/// <param name="parser"></param>
public ReadEvaluatePrintLoop(RunTimeEnvironment rte, Parser parser)
{
if (rte == null)
{
throw new ArgumentNullException(nameof(rte));
}
if (parser == null)
{
throw new ArgumentNullException(nameof(parser));
}
this.rte = rte;
this.parser = parser;
}
/// <summary>
/// Executes the statement of the <see cref="RunningLine"/>.
/// </summary>
/// <param name="rte">The run-time environment.</param>
/// <returns>The result of the statement.</returns>
public EvaluateResult ExecuteCurrentStatement(RunTimeEnvironment rte)
{
return(RunningLine.Statement.Execute(rte));
}
