public void IfAterIf()
{
var Text =
@"
{
if a == a
{
b = a;
}
if b == b
{
c = b;
}
else
{
c = a;
}
}
";
Scanner scanner = new Scanner();
scanner.SetSource(Text, 0);
Parser parser = new Parser(scanner);
parser.Parse();
var parentFiller = new FillParentsVisitor();
parser.root.Visit(parentFiller);
var trueOpt = new TrueConditionOptVisitor();
parser.root.Visit(trueOpt);
var prettyPrinter = new PrettyPrinterVisitor();
parser.root.Visit(prettyPrinter);
var TAC = GenerateTAC(prettyPrinter.FormattedProgram);
var expected = new List <string>()
{
"if True goto #L0",
"goto #L1",
"#L0",
"b = a",
"#L1",
"if True goto #L2",
"c = a",
"goto #L3",
"#L2",
"c = b",
"#L3"
};
var actual = TAC.Instructions.Select(instruction => instruction.ToString().Trim());
CollectionAssert.AreEqual(expected, actual);
}
public void TrueConditionOptAndTrueIfOpt()
{
var Text =
@"
{
if a == a
{
b = a;
c = a;
}
}
";
Scanner scanner = new Scanner();
scanner.SetSource(Text, 0);
Parser parser = new Parser(scanner);
parser.Parse();
var parentFiller = new FillParentsVisitor();
parser.root.Visit(parentFiller);
var trueOpt = new TrueConditionOptVisitor();
parser.root.Visit(trueOpt);
var trueIfOpt = new TrueIfOptVisitor();
parser.root.Visit(trueIfOpt);
var prettyPrinter = new PrettyPrinterVisitor();
parser.root.Visit(prettyPrinter);
var TACGenerator = new TACGenerationVisitor();
parser.root.Visit(TACGenerator);
var TAC = TACGenerator.TAC;
var expected = new List <string>()
{
"b = a",
"c = a"
};
var actual = TAC.Instructions.Select(instruction => instruction.ToString().Trim());
CollectionAssert.AreEqual(expected, actual);
}
public static void Main()
{
string FileName = @"..\..\b.txt";
try
{
string Text = File.ReadAllText(FileName);
Scanner scanner = new Scanner();
scanner.SetSource(Text, 0);
Parser parser = new Parser(scanner);
var b = parser.Parse();
if (!b)
{
Console.WriteLine("Error");
}
else
{
Console.WriteLine("Syntax tree has been built");
//foreach (var st in parser.root.StList)
//Console.WriteLine(st);
}
var parentFiller = new FillParentsVisitor();
parser.root.Visit(parentFiller);
/*
* var assCounter = new AssignCountVisitor();
* parser.root.Visit(assCounter);
* Console.WriteLine("AssignCount = " + assCounter.AssignCount);
* Console.WriteLine();
*/
var prettyPrinter = new PrettyPrinterVisitor();
parser.root.Visit(prettyPrinter);
Console.WriteLine(prettyPrinter.FormattedProgram);
var trueOpt = new TrueConditionOptVisitor();
parser.root.Visit(trueOpt);
Console.WriteLine("========================================================================");
prettyPrinter = new PrettyPrinterVisitor();
parser.root.Visit(prettyPrinter);
Console.WriteLine(prettyPrinter.FormattedProgram);
var trueIfOpt = new TrueIfOptVisitor();
parser.root.Visit(trueIfOpt);
Console.WriteLine("========================================================================");
prettyPrinter = new PrettyPrinterVisitor();
parser.root.Visit(prettyPrinter);
Console.WriteLine(prettyPrinter.FormattedProgram);
}
catch (FileNotFoundException)
{
Console.WriteLine("Файл {0} не найден", FileName);
}
catch (LexException e)
{
Console.WriteLine("Лексическая ошибка. " + e.Message);
}
catch (SyntaxException e)
{
Console.WriteLine("Синтаксическая ошибка. " + e.Message);
}
Console.ReadLine();
}
