public final void arrayVals() throws RecognitionException, TokenStreamException {
Token f = null;
Token r = null;
f = LT(1);
match(STRING_LITERAL);
if (inputState.guessing == 0) {
first(f.getText());
}
{
_loop14:
do {
if ((LA(1) == COMMA)) {
match(COMMA);
r = LT(1);
match(STRING_LITERAL);
if (inputState.guessing == 0) {
rest(r.getText());
}
} else {
break _loop14;
}
} while (true);
}
}
/**
* Create block comment from token.
*
* @param token Token object.
* @return DetailAST with BLOCK_COMMENT type.
*/
private static DetailAST createBlockCommentNode(Token token) {
final DetailAST blockComment = new DetailAST();
blockComment.initialize(TokenTypes.BLOCK_COMMENT_BEGIN, "/*");
// column counting begins from 0
blockComment.setColumnNo(token.getColumn() - 1);
blockComment.setLineNo(token.getLine());
final DetailAST blockCommentContent = new DetailAST();
blockCommentContent.initialize(token);
blockCommentContent.setType(TokenTypes.COMMENT_CONTENT);
// column counting begins from 0
// plus length of '/*'
blockCommentContent.setColumnNo(token.getColumn() - 1 + 2);
blockCommentContent.setLineNo(token.getLine());
blockCommentContent.setText(token.getText());
final DetailAST blockCommentClose = new DetailAST();
blockCommentClose.initialize(TokenTypes.BLOCK_COMMENT_END, "*/");
final Entry<Integer, Integer> linesColumns =
countLinesColumns(token.getText(), token.getLine(), token.getColumn());
blockCommentClose.setLineNo(linesColumns.getKey());
blockCommentClose.setColumnNo(linesColumns.getValue());
blockComment.addChild(blockCommentContent);
blockComment.addChild(blockCommentClose);
return blockComment;
}
public final void keyDef() throws RecognitionException, TokenStreamException {
Token s = null;
Token i = null;
{
switch (LA(1)) {
case STRING_LITERAL:
{
s = LT(1);
match(STRING_LITERAL);
if (inputState.guessing == 0) {
key(s.getText());
}
break;
}
case IDENT:
{
i = LT(1);
match(IDENT);
if (inputState.guessing == 0) {
key(i.getText());
}
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
}
match(DOUBLEDOT);
}
/**
* Overrides the base behavior to retry keywords as identifiers.
*
* @param token The token.
* @param ex The recognition exception.
* @return AST - The new AST.
* @throws antlr.RecognitionException if the substitution was not possible.
* @throws antlr.TokenStreamException if the substitution was not possible.
*/
public AST handleIdentifierError(Token token, RecognitionException ex)
throws RecognitionException, TokenStreamException {
// If the token can tell us if it could be an identifier...
if (token instanceof HqlToken) {
HqlToken hqlToken = (HqlToken) token;
// ... and the token could be an identifer and the error is
// a mismatched token error ...
if (hqlToken.isPossibleID() && (ex instanceof MismatchedTokenException)) {
MismatchedTokenException mte = (MismatchedTokenException) ex;
// ... and the expected token type was an identifier, then:
if (mte.expecting == HqlTokenTypes.IDENT) {
// Use the token as an identifier.
reportWarning(
"Keyword '"
+ token.getText()
+ "' is being interpreted as an identifier due to: "
+ mte.getMessage());
// Add the token to the AST.
ASTPair currentAST = new ASTPair();
token.setType(HqlTokenTypes.WEIRD_IDENT);
astFactory.addASTChild(currentAST, astFactory.create(token));
consume();
AST identifierAST = currentAST.root;
return identifierAST;
}
} // if
} // if
// Otherwise, handle the error normally.
return super.handleIdentifierError(token, ex);
}
public String getDocumentation() {
String result = "";
Token t = getHiddenBefore();
if (t != null && t.getType() == DataScriptParserTokenTypes.DOC) {
result = t.getText();
}
return result;
}
public final String htmlDocument() throws RecognitionException, TokenStreamException {
String charset;
Token token1 = null;
Token token2 = null;
charset = null;
try { // for error handling
switch (LA(1)) {
case META_CONTENT_TYPE:
{
{
token1 = LT(1);
match(META_CONTENT_TYPE);
}
charset = token1.getText();
break;
}
case XML_ENCODING_DECL:
{
{
token2 = LT(1);
match(XML_ENCODING_DECL);
}
charset = token2.getText();
break;
}
case EOF:
{
charset = null;
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
} catch (RecognitionException ex) {
reportError(ex);
consume();
consumeUntil(_tokenSet_0);
}
return charset;
}
public final void valueDef() throws RecognitionException, TokenStreamException {
Token s = null;
s = LT(1);
match(STRING_LITERAL);
if (inputState.guessing == 0) {
value(s.getText());
}
}
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);
}
}
public final String record() throws RecognitionException, TokenStreamException {
String rec;
Token r = null;
rec = null;
try { // for error handling
{
{
r = LT(1);
match(RECORD);
rec = r.getText();
}
{
switch (LA(1)) {
case COMMA:
{
match(COMMA);
break;
}
case EOF:
case NEWLINE:
case RECORD:
{
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
}
}
} catch (RecognitionException ex) {
reportError(ex);
recover(ex, _tokenSet_2);
}
return rec;
}
public final void mSTRING(boolean _createToken)
throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype;
Token _token = null;
int _begin = text.length();
_ttype = STRING;
int _saveIndex;
Token escaped = null;
char normal = '\0';
StringBuilder lBuf = new StringBuilder();
match('"');
{
_loop26:
do {
if ((LA(1) == '\\')) {
mESC(true);
escaped = _returnToken;
lBuf.append(escaped.getText());
} else if ((_tokenSet_1.member(LA(1)))) {
{
normal = LA(1);
match(_tokenSet_1);
}
lBuf.append(normal);
} else {
break _loop26;
}
} while (true);
}
match('"');
text.setLength(_begin);
text.append(lBuf.toString());
if (_createToken && _token == null && _ttype != Token.SKIP) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length() - _begin));
}
_returnToken = _token;
}
/**
* Create single-line comment from token.
*
* @param token Token object.
* @return DetailAST with SINGLE_LINE_COMMENT type.
*/
private static DetailAST createSlCommentNode(Token token) {
final DetailAST slComment = new DetailAST();
slComment.setType(TokenTypes.SINGLE_LINE_COMMENT);
slComment.setText("//");
// column counting begins from 0
slComment.setColumnNo(token.getColumn() - 1);
slComment.setLineNo(token.getLine());
final DetailAST slCommentContent = new DetailAST();
slCommentContent.initialize(token);
slCommentContent.setType(TokenTypes.COMMENT_CONTENT);
// column counting begins from 0
// plus length of '//'
slCommentContent.setColumnNo(token.getColumn() - 1 + 2);
slCommentContent.setLineNo(token.getLine());
slCommentContent.setText(token.getText());
slComment.addChild(slCommentContent);
return slComment;
}
protected final void mESC(boolean _createToken)
throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype;
Token _token = null;
int _begin = text.length();
_ttype = ESC;
int _saveIndex;
Token i = null;
Token j = null;
Token k = null;
Token l = null;
match('\\');
{
switch (LA(1)) {
case 'n':
{
match('n');
text.setLength(_begin);
text.append("\n");
break;
}
case 'r':
{
match('r');
text.setLength(_begin);
text.append("\r");
break;
}
case 't':
{
match('t');
text.setLength(_begin);
text.append("\t");
break;
}
case 'b':
{
match('b');
text.setLength(_begin);
text.append("\b");
break;
}
case 'f':
{
match('f');
text.setLength(_begin);
text.append("\f");
break;
}
case '"':
{
match('"');
text.setLength(_begin);
text.append("\"");
break;
}
case '\'':
{
match('\'');
text.setLength(_begin);
text.append("\'");
break;
}
case '/':
{
match('/');
text.setLength(_begin);
text.append("/");
break;
}
case '\\':
{
match('\\');
text.setLength(_begin);
text.append("\\");
break;
}
case 'u':
{
{
int _cnt30 = 0;
_loop30:
do {
if ((LA(1) == 'u')) {
match('u');
} else {
if (_cnt30 >= 1) {
break _loop30;
} else {
throw new NoViableAltForCharException(
(char) LA(1), getFilename(), getLine(), getColumn());
}
}
_cnt30++;
} while (true);
}
mHEX_DIGIT(true);
i = _returnToken;
mHEX_DIGIT(true);
j = _returnToken;
mHEX_DIGIT(true);
k = _returnToken;
mHEX_DIGIT(true);
l = _returnToken;
text.setLength(_begin);
text.append(ParserUtil.hexToChar(i.getText(), j.getText(), k.getText(), l.getText()));
break;
}
default:
{
throw new NoViableAltForCharException(
(char) LA(1), getFilename(), getLine(), getColumn());
}
}
}
if (_createToken && _token == null && _ttype != Token.SKIP) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length() - _begin));
}
_returnToken = _token;
}
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);
}
}