private static ASTNode ParseInput(string inputPath)
{
var input = new AntlrFileStream(inputPath);
var lexer = new CoolLexer(input);
var errors = new List <string>();
lexer.RemoveErrorListeners();
//lexer.AddErrorListener(new LexerErrorListener(errors));
var tokens = new CommonTokenStream(lexer);
var parser = new CoolParser(tokens);
//parser.RemoveErrorListeners();
//parser.AddErrorListener(new ParserErrorListener(errors));
IParseTree tree = parser.program();
if (errors.Any())
{
Console.WriteLine();
foreach (var item in errors)
{
Console.WriteLine(item);
}
return(null);
}
var astBuilder = new ASTGenerator();
ASTNode ast = astBuilder.Visit(tree);
return(ast);
}
public static CommonTokenStream Tokens(string inputPath)
{
var code = new AntlrFileStream(inputPath);
var lexer = new CoolLexer(code);
var errors = new List <string>();
lexer.RemoveErrorListeners();
lexer.AddErrorListener(new LexerErrorListener(errors));
if (errors.Any())
{
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red;
foreach (var item in errors)
{
Console.WriteLine(item);
}
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine();
return(null);
}
var tokens = new CommonTokenStream(lexer);
return(tokens);
}
public List <string> ParsingFile(string file)
{
var input = new AntlrFileStream(file);
var lexer = new CoolLexer(input);
var errors = new List <string>();
lexer.RemoveErrorListeners();
lexer.AddErrorListener(new LexerErrorListener(errors));
tokens = new CommonTokenStream(lexer);
parser = new CoolParser(tokens);
parser.RemoveErrorListeners();
parser.AddErrorListener(new ParserErrorListener(errors));
tree = parser.program();
return(errors);
}