/// <summary>
/// Creates a new parse result with the length of the specified <paramref name="result"/>
/// and a singleton observable sequence containing the value of the specified <paramref name="result"/>.
/// </summary>
/// <typeparam name="TValue">The type of the parse result's value.</typeparam>
/// <param name="result">The <see cref="IParseResult{TValue}"/> from which to create a new parse result.</param>
/// <returns>A new <see cref="IParseResult{TValue}"/> with the same length and value as the
/// specified <paramref name="result"/>, although with the value wrapped in a singleton observable sequence.</returns>
public static IParseResult <IObservable <TValue> > YieldMany <TValue>(
this IParseResult <TValue> result)
{
Contract.Requires(result != null);
Contract.Ensures(Contract.Result <IParseResult <IObservable <TValue> > >() != null);
return(result.YieldMany(result.Length));
}
/// <summary>
/// Creates a new parse result with the specified <paramref name="length"/> and a singleton enumerable
/// sequence containing the value of the specified <paramref name="result"/>.
/// </summary>
/// <typeparam name="TValue">The type of the parse result's value.</typeparam>
/// <param name="result">The <see cref="IParseResult{TValue}"/> from which to create a new parse result.</param>
/// <param name="length">The length of the new result.</param>
/// <returns>A new <see cref="IParseResult{TValue}"/> with the same length and value as the
/// specified <paramref name="result"/>, although with the value wrapped in a singleton enumerable sequence.</returns>
public static IParseResult <IEnumerable <TValue> > YieldMany <TValue>(
this IParseResult <TValue> result,
int length)
{
Contract.Requires(result != null);
Contract.Requires(length >= 0);
Contract.Ensures(Contract.Result <IParseResult <IEnumerable <TValue> > >() != null);
return(result.YieldMany(result.Value, length));
}