static void Main(string[] args)
{
var result = Parser.Default.ParseArguments <Options>(args);
result.WithParsed(o =>
{
try
{
var source = new Source(new StreamReader(o.SourceFilePath));
source.AddMessageListener(new SourceMessageListener());
var parser = FrontendFactory.CreateParser("pascal", "top-down", source);
parser.AddMessageListener(new ParserMessageListener());
var backend = BackendFactory.CreateBackend(o.Operation);
backend.AddMessageListener(new BackendMessageListener());
parser.Parse();
source.Close();
var iCode = parser.IntermediateCode;
var symTab = parser.SymbolTable;
backend.Process(iCode, symTab);
}
catch (Exception e)
{
Console.WriteLine(e);
}
});
}
public void CreateParser_PascalForTopDownParser()
{
var frontendFactory = new FrontendFactory(Mock.Of <IMessageHandler>(), Mock.Of <ITimeProvider>());
var parser = frontendFactory.CreateParser("pascal", "top-down", Mock.Of <ISource>());
parser.Should().BeOfType(typeof(PascalTopDownParser));
}
private Backend backend; // backend
public Pascal(string operation, string filePath, string flags)
{
try
{
bool intermediate = flags.IndexOf('i') > -1;
bool xref = flags.IndexOf('x') > -1;
source = new Source(new StreamReader(filePath));
source.addMessageListener(new SourceMessageListener());
parser = FrontendFactory.createParser("Pascal", "top-down", source);
parser.addMessageListener(new ParserMessageListener());
backend = BackendFactory.createBackend(operation);
backend.addMessageListener(new BackendMessageListener());
parser.parse();
source.close();
iCode = parser.iCode;
symbolTableStack = Parser.symbolTableStack;
if (xref)
{
CrossReferencer crossReferencer = new CrossReferencer();
crossReferencer.Print(symbolTableStack);
}
if (intermediate)
{
ParseTreePrinter treePrinter = new ParseTreePrinter(Console.Out);
treePrinter.Print(iCode);
}
backend.process(iCode, symbolTableStack);
}
catch (Exception e)
{
Console.WriteLine("***** Internal translator error. *****");
Console.WriteLine(e.StackTrace);
}
}
public void CreateParser_ThrowsExceptionForUnknownType()
{
var frontendFactory = new FrontendFactory(Mock.Of <IMessageHandler>(), Mock.Of <ITimeProvider>());
frontendFactory.CreateParser("pascal", "bottom-up", Mock.Of <ISource>());
}
public void CreateParser_ThrowsExceptionForUnknownLanguage()
{
var frontendFactory = new FrontendFactory(Mock.Of <IMessageHandler>(), Mock.Of <ITimeProvider>());
frontendFactory.CreateParser("ruby", "top-down", Mock.Of <ISource>());
}