public static void main(String[] args) {
try {
CLI.parse(args, new String[0]);
InputStream inputStream =
args.length == 0 ? System.in : new java.io.FileInputStream(CLI.infile);
if (CLI.target == Action.SCAN) {
CScanner scanner = new CScanner(new DataInputStream(inputStream));
scanner.setTrace(CLI.debug);
Token token;
boolean done = false;
while (!done) {
try {
for (token = scanner.nextToken();
token.getType() != CParserTokenTypes.EOF;
token = scanner.nextToken()) {
System.out.println(token.getType());
}
done = true;
} catch (Exception e) {
// print the error:
System.out.println("ERROR: " + CLI.infile + " " + e);
scanner.consume();
}
}
} else if (CLI.target == Action.PARSE
|| CLI.target == Action.DOT
|| CLI.target == Action.DEFAULT) {
CScanner scanner = new CScanner(new DataInputStream(inputStream));
CParser parser = new CParser(scanner);
parser.setTrace(CLI.debug);
parser.program();
if (parser.getError()) {
System.out.println("ERROR");
System.exit(-1);
}
if (CLI.target == Action.DOT) {
System.out.println(TreeVisualizer.generateDOT(parser.getAST()));
}
} else if (CLI.target == Action.LOWIR) {
CScanner scanner = new CScanner(new DataInputStream(inputStream));
CParser parser = new CParser(scanner);
parser.setTrace(CLI.debug);
parser.program();
if (parser.getError()) {
System.out.println("ERROR");
System.exit(-1);
}
IrProgram cfg = (IrProgram) IrGenerator.getIr(parser.getAST());
SemanticChecker checker = new SemanticChecker();
checker.check(cfg);
SymbolTable table = checker.getSymbolTable();
OutputGenerator gen = new OutputGenerator();
gen.generate(cfg, table);
} else {
System.out.println("Unsupported target");
}
} catch (Exception e) {
// print the error:
System.out.println(CLI.infile + " " + e);
}
}
