J2V.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41

import java.io.*;
import visitor.*;
import parse.*;
import syntaxtree.*;
import java.util.*;
import st.*;
import misc.*;
import vaporize.library.*;

public class J2V {
    public static void main(String[] args) {
        Node root = null;
        try {
            root = new MiniJavaParser(System.in).Goal();

            // Pretty-print the tree. PPrinter inherits from
            // GJDepthFirst<R,A>. R=Void, A=String.
            PPrinter<Void,String> pp = new PPrinter<Void,String>();
            root.accept(pp, "");

            // Build the symbol table. Top-down visitor, inherits from
            // GJDepthFirst<R,A>. R=Void, A=Integer.
            SymbolTable symt = new SymbolTable();
            root.accept(new SymTableBottomUp<Void>(), symt);
            root.accept(new SymTableTopDown<Void>(), symt);

            VaporizeSimp vp = new VaporizeSimp();
            String program = root.accept(vp, symt);

            PrintFilter.print("===================================================", true);
            System.out.println(program);


        }
        catch (ParseException e) {
            System.out.println(e.toString());
            System.exit(1);
        }

    }
}