static void Main(string[] args)
{
if (args.Length != 1)
{
Console.WriteLine("Please provide input file");
Environment.Exit(-1);
}
string filePath = $@"{Environment.CurrentDirectory}\{args[0]}";
string fileName = Path.GetFileNameWithoutExtension(filePath);
string fileDirectory = Path.GetDirectoryName(filePath);
string inputText = File.ReadAllText(filePath);
Lexer.Lexer lex = new Lexer.Lexer(inputText);
List <Token> tokensToParse = new List <Token>();
using (StreamWriter tokenFile = new StreamWriter($@"{fileDirectory}\{fileName}.outlextokens"))
using (StreamWriter tokenErrorFile = new StreamWriter($@"{fileDirectory}\{fileName}.outlexerrors"))
{
Token t;
do
{
t = lex.GetNextToken();
Console.WriteLine(t.ToString());
if (lex.IsErrorToken(t.TokenType))
{
tokenErrorFile.WriteLine(t.ToString());
}
else
{
tokenFile.WriteLine(t.ToString());
tokensToParse.Add(t);
}
}while (t.TokenType != TokenType.EOF);
tokensToParse.RemoveAll(x => lex.IsCommentToken(x.TokenType));
}
using (StreamWriter astStream = new StreamWriter($@"{fileDirectory}\{fileName}.outast"))
using (StreamWriter derivationsStream = new StreamWriter($@"{fileDirectory}\{fileName}.outderivation"))
using (StreamWriter syntaxErrorStream = new StreamWriter($@"{fileDirectory}\{fileName}.outsyntaxerrors"))
using (StreamWriter symbolTablesStream = new StreamWriter($@"{fileDirectory}\{fileName}.outsymboltables"))
using (StreamWriter semanticErrorStream = new StreamWriter($@"{fileDirectory}\{fileName}.outsemanticerrors"))
{
// Do parsing
Parser.Parser parser = new Parser.Parser(tokensToParse, syntaxErrorStream, derivationsStream, astStream);
Console.WriteLine(parser.Parse());
var tree = parser.GetASTTree();
derivationsStream.Flush();
syntaxErrorStream.Flush();
var printVisitor = new DOTPrinterVisitor(astStream);
tree.Accept(printVisitor);
astStream.Flush();
var symbolTableVisitor = new SymbolTableVisitor(semanticErrorStream);
tree.Accept(symbolTableVisitor);
symbolTablesStream.WriteLine(symbolTableVisitor.GlobalSymbolTable);
Console.WriteLine(symbolTableVisitor.GlobalSymbolTable);
var semanticCheckerVisitor = new SemanticCheckerVisitor(semanticErrorStream, symbolTableVisitor.GlobalSymbolTable);
tree.Accept(semanticCheckerVisitor);
}
}
static void Main(string[] args)
{
if (args.Length != 1)
{
Console.WriteLine("Please provide input file");
Environment.Exit(-1);
}
string filePath = $@"{Environment.CurrentDirectory}\{args[0]}";
string fileName = Path.GetFileNameWithoutExtension(filePath);
string fileDirectory = Path.GetDirectoryName(filePath);
string inputText = File.ReadAllText(filePath);
Lexer.Lexer lex = new Lexer.Lexer(inputText);
List <Token> tokensToParse = new List <Token>();
using (StreamWriter tokenFile = new StreamWriter($@"{fileDirectory}\{fileName}.outlextokens"))
using (StreamWriter tokenErrorFile = new StreamWriter($@"{fileDirectory}\{fileName}.outlexerrors"))
{
Token t;
do
{
t = lex.GetNextToken();
//Console.WriteLine(t.ToString());
if (lex.IsErrorToken(t.TokenType))
{
tokenErrorFile.WriteLine(t.ToString());
Console.WriteLine($"LexError: {t.ToString()}");
}
else
{
tokenFile.WriteLine(t.ToString());
tokensToParse.Add(t);
}
}while (t.TokenType != TokenType.EOF);
tokensToParse.RemoveAll(x => lex.IsCommentToken(x.TokenType));
Console.WriteLine("INFO: Lexing completed.");
}
using (StreamWriter astStream = new StreamWriter($@"{fileDirectory}\{fileName}.outast"))
using (StreamWriter derivationsStream = new StreamWriter($@"{fileDirectory}\{fileName}.outderivation"))
using (StreamWriter syntaxErrorStream = new StreamWriter($@"{fileDirectory}\{fileName}.outsyntaxerrors"))
using (StreamWriter symbolTablesStream = new StreamWriter($@"{fileDirectory}\{fileName}.outsymboltables"))
using (StreamWriter semanticErrorStream = new StreamWriter($@"{fileDirectory}\{fileName}.outsemanticerrors"))
using (StreamWriter codeGenOutput = new StreamWriter($@"{fileDirectory}\{fileName}.moon"))
{
// Do parsing
Parser.Parser parser = new Parser.Parser(tokensToParse, syntaxErrorStream, derivationsStream, astStream);
Console.WriteLine(parser.Parse() ? "Parsing passed" : "Error: Parsing Failed");
var tree = parser.GetASTTree();
var printVisitor = new DOTPrinterVisitor(astStream);
tree.Accept(printVisitor);
astStream.Flush();
Console.WriteLine("INFO: AST Tree dumped to outast");
var symbolTableVisitor = new SymbolTableVisitor(semanticErrorStream);
tree.Accept(symbolTableVisitor);
Console.WriteLine("INFO: SymbolTable Generated");
var semanticCheckerVisitor = new SemanticCheckerVisitor(semanticErrorStream, symbolTableVisitor.GlobalSymbolTable);
tree.Accept(semanticCheckerVisitor);
Console.WriteLine("INFO: Semantic Checking Complete");
syntaxErrorStream.Flush();
semanticErrorStream.Flush();
bool hasErrors = semanticErrorStream.BaseStream.Length != 0 || syntaxErrorStream.BaseStream.Length != 0;
if (hasErrors)
{
Console.WriteLine("Errors generated during parsing/semantic checking, terminating...");
Console.ReadKey();
Environment.Exit(-10);
}
// Codegen
codeGenOutput.NewLine = "\n";
var codeWriter = new CodeWriter(codeGenOutput);
var codeGen = new CodeGen.CodeGen(tree, symbolTableVisitor.GlobalSymbolTable, codeWriter);
codeGen.GenerateCode();
symbolTablesStream.WriteLine(symbolTableVisitor.GlobalSymbolTable);
Console.WriteLine("INFO: Code Generated");
Console.ReadKey();
}
}
