/** * 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; }
/** * 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; }
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); } }
@Override public void initialize(Token tok) { super.initialize(tok); lineNo = tok.getLine(); columnNo = tok.getColumn() - 1; // expect columns to start @ 0 }
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); } }