/// <summary>
/// Retrieves the value with the given <see cref="Id"/> if possible. Otherwise evaluates the <see cref="Code"/>.
/// </summary>
/// <param name="engine">Engine to execute code against</param>
/// <returns>The value from evaluation of the <see cref="Code"/></returns>
public virtual object GetValue(ICompositionEngine engine)
{
if (Id != null)
{
var value = engine.GetProperty(Id);
if (value != null)
{
return(value);
}
}
var rawCode = Code;
if (engine.ShouldConvertTimeMarks())
{
rawCode = new TimeConverter().ReplaceTimespans(rawCode);
}
return(engine.Execute(rawCode));
}
