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 == CLI.SCAN) {
DecafScanner lexer = new DecafScanner(new DataInputStream(inputStream));
Token token;
boolean done = false;
while (!done) {
try {
for (token = lexer.nextToken();
token.getType() != DecafParserTokenTypes.EOF;
token = lexer.nextToken()) {
String type = "";
String text = token.getText();
switch (token.getType()) {
case DecafScannerTokenTypes.ID:
type = " IDENTIFIER";
break;
case DecafScannerTokenTypes.CHAR:
type = " CHARLITERAL";
break;
case DecafScannerTokenTypes.TRUE:
case DecafScannerTokenTypes.FALSE:
type = " BOOLEANLITERAL";
break;
case DecafScannerTokenTypes.HEX:
case DecafScannerTokenTypes.DECIMAL:
type = " INTLITERAL";
break;
case DecafScannerTokenTypes.STRING:
type = " STRINGLITERAL";
break;
}
System.out.println(token.getLine() + type + " " + text);
}
done = true;
} catch (Exception e) {
// print the error:
System.out.println(CLI.infile + " " + e);
lexer.consume();
}
}
} else if (CLI.target == CLI.PARSE || CLI.target == CLI.DEFAULT) {
DecafScanner lexer = new DecafScanner(new DataInputStream(inputStream));
DecafParser parser = new DecafParser(lexer, CLI.debug);
// DecafParser parser = new DecafParser (lexer);
parser.program();
} else if (CLI.target == CLI.INTER) {
DecafScanner lexer = new DecafScanner(new DataInputStream(inputStream));
DecafParser parser = new DecafParser(lexer, CLI.debug);
parser.program();
IrNode irRoot = parser.getIrTree();
SemanticChecker checker = new SemanticChecker(CLI.infile, CLI.debug);
if (CLI.debug) System.out.println("--- checking -----");
checker.checkProgram((IrClassDecl) irRoot);
} else if (CLI.target == CLI.LOWIR) {
DecafScanner lexer = new DecafScanner(new DataInputStream(inputStream));
DecafParser parser = new DecafParser(lexer, CLI.debug);
parser.program();
IrNode irRoot = parser.getIrTree();
SemanticChecker checker = new SemanticChecker(CLI.infile, CLI.debug);
if (CLI.debug) System.out.println("--- checking -----");
checker.checkProgram((IrClassDecl) irRoot);
CodeGen codegen = new CodeGen(irRoot, CLI.debug);
codegen.genLowIr();
codegen.printLowIr();
}
} catch (Exception e) {
// print the error:
System.out.println(CLI.infile + " " + e);
}
}
public static void main(String[] args) throws Exception {
try {
CatalogReader foo = new CatalogReader("Catalog.xml");
Map<String, TableData> catalog = foo.getCatalog();
// System.out.println (CatalogReader.printCatalog (res));
InputStreamReader converter = new InputStreamReader(System.in);
BufferedReader in = new BufferedReader(converter);
System.out.format("\nSQL>");
String soFar = in.readLine() + " ";
// loop forever, or until someone asks to quit
while (true) {
// keep on reading from standard in until we hit a ";"
while (soFar.indexOf(';') == -1) soFar += (in.readLine() + " ");
// split the string
String toParse = soFar.substring(0, soFar.indexOf(';') + 1);
soFar = soFar.substring(soFar.indexOf(';') + 1, soFar.length());
toParse = toParse.toLowerCase();
// parse it
ANTLRStringStream parserIn = new ANTLRStringStream(toParse);
SQLLexer lexer = new SQLLexer(parserIn);
CommonTokenStream tokens = new CommonTokenStream(lexer);
SQLParser parser = new SQLParser(tokens);
// if we got a quit
if (parser.parse() == false) break;
// print the results
System.out.println("RESULT OF PARSING");
System.out.println("Expressions in SELECT:");
ArrayList<Expression> mySelect = parser.getSELECT();
for (Expression e : mySelect) System.out.println("\t" + e);
System.out.println("Tables in FROM:");
Map<String, String> myFrom = parser.getFROM();
System.out.println("\t" + myFrom);
System.out.println("WHERE clause:");
Expression myWhere = parser.getWHERE();
if (myWhere != null) System.out.println("\t" + myWhere);
System.out.println("GROUPING att:");
String myGroup = parser.getGROUPBY();
if (myGroup != null) System.out.println("\t" + myGroup);
SemanticChecker sc = new SemanticChecker(mySelect, myFrom, myWhere, myGroup, catalog);
if (sc.execute() == true)
new Optimizer(mySelect, myFrom, myWhere, myGroup, catalog).execute();
else System.err.println("Semantic checking failed");
System.out.format("\nSQL>");
}
} catch (Exception e) {
System.err.println("Interpreter.main.73: error!");
}
}
