public Lexer(string fileName)
{
Antlr.Runtime.ANTLRFileStream fileStream = new Antlr.Runtime.ANTLRFileStream(fileName);
MiniJavaLexer lexer = new MiniJavaLexer(fileStream);
TokenStream = new Antlr.Runtime.CommonTokenStream(lexer);
//SaveToFile("lexer1.txt");
}
public void Parse(string input, string[] compilerOptions)
{
string fileName = Path.GetFileNameWithoutExtension(compilerOptions[0]);
ParseCompilerOptions(compilerOptions);
AntlrInputStream inputStream = new AntlrInputStream(input);
MiniJavaLexer miniJavaLexer = new MiniJavaLexer(inputStream);
CommonTokenStream commonTokenStream = new CommonTokenStream(miniJavaLexer);
MiniJavaParser miniJavaParser = new MiniJavaParser(commonTokenStream);
miniJavaParser.AddErrorListener(ErrorListener.INSTANCE);
var cst = miniJavaParser.prg();
if (ErrorListener.INSTANCE.errorCounter > 0)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Sorry this is all my fault :(");
}
else
{
// Generate AST //
var ast = cst.ToAst();
// Type Checking //
TypeChecker typeChecker = new TypeChecker();
typeChecker.InitTypeChecking(ast);
typeChecker.StartTypeChecking(ast);
// Convert to intermediate //
IntermediateAstBuilder intermediate = new IntermediateAstBuilder();
var interTree = intermediate.BuildIntermediateAst(ast);
var canonizedTree = new Canonizer().CanonPrg((TreePrg)interTree);
// assembly //
I386CodeGenerator codeGenerator = new I386CodeGenerator();
var i386Prg = (I386Prg)codeGenerator.CodeGen(canonizedTree);
if (WithoutAlloc)
{
File.WriteAllText(fileName + "_noallocs.s", i386Prg.RenderAssembly());
}
// Liveness analysis //
RegisterAllocator registerAllocator = new RegisterAllocator();
registerAllocator.AllocateRegisters(i386Prg, codeGenerator.GetGeneralPurposeRegisters());
Afterburner afterburner = new Afterburner();
afterburner.RemoveRedundancies(i386Prg);
if (Intermediate)
{
File.WriteAllText(fileName + ".tree", canonizedTree.ToString());
}
File.WriteAllText(fileName + ".s", i386Prg.RenderAssembly());
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("You did great!");
Console.ForegroundColor = ConsoleColor.White;
}
}
