/// <summary>
/// Creates an AST from the given CST (<see cref="ParserRuleContext"/>).
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public override ASTNode VisitProg(CLUBSParser.ProgContext context)
{
ProgNode node = new ProgNode(new SourcePosition(context.start));
node.Children.Add(Visit(context.setupBlock));
return(node);
}
/// <summary>
/// Compiles the received input to an executable file.
/// </summary>
/// <param name="input"></param>
public void Compile(string input)
{
// CREATE LEXER FROM SOURCE CODE, GET TOKENS.
// Create char stream from input source code.
AntlrInputStream inputStream = new AntlrInputStream(input);
// Create lexer that will use the char stream.
CLUBSLexer CLUBSLexer = new CLUBSLexer(inputStream);
// Create token stream using the lexer.
CommonTokenStream commonTokenStream = new CommonTokenStream(CLUBSLexer);
// CREATE PARSER.
ErrorLogger errorLogger = new ErrorLogger();
// Create parser that will use the tokens.
CLUBSParser CLUBSParser = new CLUBSParser(commonTokenStream);
;
// Add own error handling.
CLUBSParser.RemoveErrorListeners();
CLUBSParser.AddErrorListener(errorLogger);
Console.WriteLine("\n\nCOMPILER STAGE: Parser generated");
;
// GENERATE CST/Parse tree from tokens.
// Begin parsing from prog rule (the start rule)
CLUBSParser.ProgContext cst = CLUBSParser.prog();
Console.WriteLine("COMPILER STAGE: Parsing done (CST built)");
// Check any parser errrors. Print these and dont proceed to next stage.
//PrintErrorsAndExitIfAny(errorLogger); // XXX: Vi kan ikke fortsætte med at compile hvis syntax errors. Er det et problem?
//ParseTreeWalker walker = new ParseTreeWalker(); // NOTE: Do not remove. Prints the parse tree (ish..)
//.Walk(new ParseTreeListener(), cst);
//Console.ReadKey();
// GENERATE AST.
ASTNode ast = new BuildASTVisitor().VisitProg(cst);
;
Console.WriteLine("COMPILER STAGE: AST built.");
;
// PRINT AST
//new PrintVisitor().Visit(ast);
// DECORATE AST
Checker checker = new Checker(errorLogger);
checker.Visit(ast);
Console.WriteLine("COMPILER STAGE: Checker finished.");
// SHOW ACE COMPILER ERRORS
// Print any compiler errors and do not translate to IR (C#).
PrintErrorsAndExitIfAny(errorLogger);
string sourceCode = new CodeGenerator().GenerateCode(ast);
CompileToExe(sourceCode, "AceProgram.exe");
Console.WriteLine("All done.");
}