/// <summary>
/// Compiles the <see cref="Tabulator{T}"/> object
/// for evaluating the specified <paramref name="expression"/>
/// in some ranges of arguments.</summary>
/// <param name="expression">Expression to compile.</param>
/// <exception cref="SyntaxException">
/// <paramref name="expression"/> contains syntax error(s)
/// and can't be compiled.</exception>
/// <exception cref="ArgumentNullException">
/// <paramref name="expression"/> is null.</exception>
/// <exception cref="ArgumentException">
/// Current expression's arguments <see cref="Arguments">count</see>
/// is not supported (only 1 or 2 arguments supported by now).</exception>
/// <remarks>Not available in the .NET CF versions.</remarks>
/// <returns><see cref="Tabulator{T}"/> object
/// for evaluating expression.</returns>
public Tabulator <T> CreateTabulator(string expression)
{
if (expression == null)
{
throw new ArgumentNullException("expression");
}
if (ArgsCount == 0)
{
throw new ArgumentException(Resource.errTabulatorWrongArgs);
}
var compiler = new TabulatorCompiler <T>(ArgsCount, OverflowCheck);
ParseOptimized(expression, compiler);
var del = compiler.CreateDelegate();
if (ArgsCount > 2)
{
var alloc = TabulatorCompiler <T> .GetAllocator(ArgsCount);
return(new Tabulator <T>(expression, del, ArgsCount, alloc));
}
return(new Tabulator <T>(expression, del, ArgsCount));
}
/// <summary>
/// Allocates the array with lengths, that needed
/// to tabulate some expression in the specified
/// argument <paramref name="ranges"/>.</summary>
/// <param name="ranges">Argument ranges.</param>
/// <typeparam name="T">Array elements type.</typeparam>
/// <exception cref="ArgumentNullException">
/// <paramref name="ranges"/> is null.</exception>
/// <exception cref="InvalidRangeException">
/// Some instance of <paramref name="ranges"/>
/// is not valid for iteration over it.</exception>
/// <returns>Allocated <paramref name="ranges"/>-dimensional
/// jagged array casted to <see cref="Array"/> type.</returns>
public static Array Allocate <T>(params ValueRange <T>[] ranges)
{
if (ranges == null)
{
throw new ArgumentNullException("ranges");
}
if (ranges.Length == 1)
{
return(new double[ranges[0].ValidCount]);
}
if (ranges.Length == 2)
{
return(Allocate(ranges[0], ranges[1]));
}
var sizes = new int[ranges.Length];
for (int i = 0; i < ranges.Length; i++)
{
sizes[i] = ranges[i].ValidCount;
}
var alloc = TabulatorCompiler <T> .GetAllocator(ranges.Length);
return(alloc(sizes));
}
/// <summary>
/// Allocates the array with lengths, that needed to tabulate
/// some expression in the three specified argument ranges.</summary>
/// <param name="range1">First argument range.</param>
/// <param name="range2">Second argument range.</param>
/// <param name="range3">Third argument range.</param>
/// <typeparam name="T">Array elements type.</typeparam>
/// <exception cref="InvalidRangeException"><paramref name="range1"/>,
/// <paramref name="range2"/> or <paramref name="range3"/>
/// is not valid for iteration over it.</exception>
/// <returns>Allocated three-dimensional jagged array
/// casted to <see cref="Array"/> type.</returns>
public static Array Allocate <T>(
ValueRange <T> range1,
ValueRange <T> range2,
ValueRange <T> range3)
{
var alloc = TabulatorCompiler <T> .GetAllocator(3);
return(alloc(
range1.ValidCount,
range2.ValidCount,
range3.ValidCount));
}
