/**
* Create comment AST from token. Depending on token type SINGLE_LINE_COMMENT or
* BLOCK_COMMENT_BEGIN is created.
*
* @param token Token object.
* @return DetailAST of comment node.
*/
private static DetailAST createCommentAstFromToken(Token token) {
if (token.getType() == TokenTypes.SINGLE_LINE_COMMENT) {
return createSlCommentNode(token);
} else {
return createBlockCommentNode(token);
}
}
public String getDocumentation() {
String result = "";
Token t = getHiddenBefore();
if (t != null && t.getType() == DataScriptParserTokenTypes.DOC) {
result = t.getText();
}
return result;
}
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;
}
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);
parser.program();
}
} catch (Exception e) {
// print the error:
System.out.println(CLI.infile + " " + e);
}
}
protected void showTokenStreamOf(String text) throws CharStreamException, TokenStreamException {
Reader input = new StringReader(text);
LexerImpl lexer = new LexerImpl(input);
Token t = lexer.nextToken();
while (t.getType() != Token.EOF_TYPE) {
System.out.println(t.toString());
t = lexer.nextToken();
}
System.out.println("<END OF STREAM>");
}
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);
}
}
protected boolean isEofToken(antlr.Token token) {
return token.getType() == antlr.Token.EOF_TYPE;
}
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);
}
}