/// <summary>
/// Convert Abstract Syntax Tree to Virtual Machine object with associated virtual code for such machine
/// </summary>
/// <param name="ast">Abstract Syntax Tree.</param>
/// <param name="request">Request used by user to perform convertion.</param>
/// <returns>Object that allows evaluate next occurences</returns>
private ConvertionResponse <IFireTimeEvaluator> Convert(RootScriptNode ast,
ConvertionRequest <TMethodsAggregator> request)
{
var coretnessChecker = new RdlQueryValidator(Metdatas);
var queryValidatorTraverser = new Traverser(coretnessChecker);
ast.Accept(queryValidatorTraverser);
if (!coretnessChecker.IsValid)
{
return(new ConvertionResponse <IFireTimeEvaluator>(null, coretnessChecker.Errors.ToArray()));
}
var contextChangeTracker = new Stack <bool>();
var scopeGenerator = new ContextGenerator(contextChangeTracker);
var scopeTraverser = new ContextGeneratorTraverser(scopeGenerator, contextChangeTracker);
ast.Accept(scopeTraverser);
var codeGenerator = request.Debuggable
? new DebuggerSymbolGenerator(Metdatas, request.MethodsAggregator, MethodOccurences)
: new CodeGenerator(Metdatas, request.MethodsAggregator, MethodOccurences);
var codeGenerationTraverseVisitor = new ExtendedTraverser(codeGenerator, scopeGenerator.Scope.GetRootOfAllScopes());
ast.Accept(codeGenerationTraverseVisitor);
IFireTimeEvaluator evaluator = codeGenerator.CreateVirtualMachine(request.CancellationToken);
if (evaluator == null)
{
return(new ConvertionResponse <IFireTimeEvaluator>(null, coretnessChecker.Errors.ToArray()));
}
evaluator = new TimeZoneAdjuster(request.Source, evaluator);
evaluator = new DaylightSavingTimeTracker(request.Source, evaluator);
return(request.Source == request.Target
? new ConvertionResponse <IFireTimeEvaluator>(evaluator)
: new ConvertionResponse <IFireTimeEvaluator>(new TimeZoneChangerDecorator(request.Source, request.Target, evaluator)));
}
public IdentifiableEvaluator(IFireTimeEvaluator evaluator, Guid key)
{
_evaluator = evaluator;
Key = key;
}
/// <summary>
/// Instantiate and configure this instance.
/// </summary>
/// <param name="timeZone">The source timezone.</param>
/// <param name="evaluator">The evaluator.</param>
public DaylightSavingTimeTracker(TimeZoneInfo timeZone, IFireTimeEvaluator evaluator)
{
_timeZone = timeZone;
_evaluator = evaluator;
}
/// <summary>
/// Initialize instance.
/// </summary>
/// <param name="source">Evaluator working timezone</param>
/// <param name="destinationZoneInfo">Destination timezone.</param>
/// <param name="evaluator">The evaluator.</param>
public TimeZoneChangerDecorator(TimeZoneInfo source, TimeZoneInfo destinationZoneInfo, IFireTimeEvaluator evaluator)
{
_destinationZoneInfo = destinationZoneInfo;
_evaluator = evaluator;
_sourceZoneInfo = source;
}
/// <summary>
/// Instantiate and configure this instance.
/// </summary>
/// <param name="timeZone">The source timezone.</param>
/// <param name="evaluator">The evaluator.</param>
public TimeZoneAdjuster(TimeZoneInfo timeZone, IFireTimeEvaluator evaluator)
{
_timeZone = timeZone;
_evaluator = evaluator;
}
