Example #1
0
File: Main.cpp Project: dbenn/cgp
// Here's where we do the real work...
static void parseFile(const string& f)
{
	try {
		ifstream s(f.c_str());

		// Create a scanner that reads from the input stream
		JavaLexer lexer(s);
		lexer.setFilename(f);

/*
		while (true) {
			RefToken t = lexer.nextToken();
			if (t->getType() == Token::EOF_TYPE)
				break;
			cout << t->getText() << ":" << t->getType() << endl;
		}
*/

		// Create a parser that reads from the scanner
		JavaRecognizer parser(lexer);
		parser.setFilename(f);

		// start parsing at the compilationUnit rule
		parser.compilationUnit();
		
		// do something with the tree
		doTreeAction(f, parser.getAST());
	}
	catch (exception& e) {
		cerr << "parser exception: " << e.what() << endl;
//		e.printStackTrace();   // so we can get stack trace		
	}
}
Example #2
0
// Here's where we do the real work...
static void parseFile(const string& f)
{
	try
	{
		ifstream s(f.c_str());

		// Create a scanner that reads from the input stream
		JavaLexer lexer(s);
		lexer.setFilename(f);

/*
		while (true) {
			RefToken t = lexer.nextToken();
			if (t->getType() == Token::EOF_TYPE)
				break;
			cout << t->getText() << ":" << t->getType() << endl;
		}
*/

		// Create a parser that reads from the scanner
		JavaRecognizer parser(lexer);
		parser.setFilename(f);

		// make an ast factory
		ASTFactory ast_factory;

		// initialize and put it in the parser...
		parser.initializeASTFactory(ast_factory);
		parser.setASTFactory(&ast_factory);

		// start parsing at the compilationUnit rule
		parser.compilationUnit();

		// do something with the tree
		doTreeAction( ast_factory, parser.getAST() );
	}
	catch (ANTLRException& e) {
		cerr << "parser exception: " << e.toString() << endl;
	}
	catch (exception& e) {
		cerr << "exception: " << e.what() << endl;
	}
}