Main.java

import java.io.FileInputStream;
import java.io.FileNotFoundException;

import symboltable.STValidator;
import symboltable.SemanticError;
import symboltable.State;
import symboltable.TypeChecker;
import symboltable.OffsetPrinter;
import symboltable.Codegen;
import syntaxtree.*;

public class Main {

    public static void main(String[] args) {
        if (args.length < 1) {
            System.err.println("Usage: java Main <inputFile1> [<inputFile2> ...]");
            System.exit(1);
        }

        for (String path : args) {
            System.err.println("=== " + path + " ===");

            try (FileInputStream fis = new FileInputStream(path)) {
                MiniJavaParser parser = new MiniJavaParser(fis);

                Goal root = parser.Goal();

                STBuilder stb = new STBuilder();
                root.accept(stb);

                STValidator stv = new STValidator();
                stv.resolveTypes(stb.globalTable);
                stv.checkOverloads(stb.globalTable);

                State state = new State();
                TypeChecker typeChecker = new TypeChecker(stb.globalTable);
                root.accept(typeChecker, state);

                OffsetPrinter offsetPrinter = new OffsetPrinter();
                offsetPrinter.compute(stb.globalTable);
                offsetPrinter.print(stb.globalTable);

                Codegen codegen = new Codegen(stb.globalTable);
                codegen.generate(root, path, state);

                System.err.println("Program parsed successfully.");
            } catch (ParseException e) {
                System.err.println(e.getMessage());
            } catch (FileNotFoundException e) {
                System.err.println(e.getMessage());
            } catch (SemanticError e) {
                System.err.println(e.getMessage());
            } catch (Exception e) {
                System.err.println(e.getMessage());
            }
        }
    }
}