public IAST ParseProgram(Lexer lexer)
{
var program = new AST.Program();
while (true)
{
program.AddBlockStatement(ParseBlockStatement(lexer));
var text = string.Empty;
var token = lexer.InputToken(out text);
if (token == Token.V程序结束)
{
break;
}
else if (token == Token.V_ERROR)
{
throw new Exception($"语法错误，不是预期的输入:{text}。 在 {lexer.Line} 行，{lexer.Column}列");
}
else
{
lexer.ReturnToken(token, text);
}
}
return(program);
}
static void Main(string[] args)
{
// TODO --verbose parameter?
#region debuging
////// To Release comment from HERE ##
//#if Debug
// Fake_Main(new string[] { "../test/semanticerrors/selfmethod.cl" });//TODO
//}
//static void Fake_Main(string[] args)
//{
//#endif
// To Release comment til HERE ##
#endregion
#region Variables
double version = 0.1;
string copyright = "ADB & JLA";
var verbose = false;
string usage = "Usage:\n\tcoolc.exe <filename.cl>";
#endregion
#region Welcome Message
////// ////// Welcome Message ////// //////
Console.ForegroundColor = ConsoleColor.Gray;
if (verbose == true)
{
Console.ForegroundColor = ConsoleColor.Cyan;
Console.WriteLine("A cool compiler :)");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine("Version: {0}", version);
Console.WriteLine("Copyright (C) 2017-2018: {0}", copyright);
}
#endregion
#region Open file
////// ////// Open file ////// //////
if (args.Length == 0)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("ERROR: No arguments given ");
Console.ForegroundColor = ConsoleColor.Gray;
//Console.WriteLine(usage);
Environment.Exit(1);
return;
}
//Console.WriteLine("Opening: {0}\t", args[0]);
Console.Write("Program: {0,40}\t", args[0]);
AntlrFileStream input_file;
try
{
input_file = new AntlrFileStream(args[0]);
}
catch (Exception)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("ERROR: Opening file ");
Console.ForegroundColor = ConsoleColor.Gray;
//Console.WriteLine("");
//Console.WriteLine(usage);
Environment.Exit(1);
return;
}
#endregion
#region Parse
StreamWriter LEW = new StreamWriter(args[0] + ".lexer.errors.txt");
StreamWriter PEW = new StreamWriter(args[0] + ".parser.errors.txt");
////// ////// Parse ////// //////
CoolLexer lexer = new CoolLexer(input_file, LEW, LEW);
CommonTokenStream tokens = new CommonTokenStream(lexer);
CoolParser parser = new CoolParser(tokens, PEW, PEW);
Console.ForegroundColor = ConsoleColor.Yellow;
IParseTree tree = parser.program();
LEW.Close();
PEW.Close();
if (parser.NumberOfSyntaxErrors > 0)
{
//Console.WriteLine("{0,20}","[Parsing Error]");
Console.WriteLine();
StreamReader LER = new StreamReader(args[0] + ".lexer.errors.txt");
StreamReader PER = new StreamReader(args[0] + ".parser.errors.txt");
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Lexer Errors:");
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine(LER.ReadToEnd());
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Parser Errors:");
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine(PER.ReadToEnd());
LER.Close();
PER.Close();
Console.ForegroundColor = ConsoleColor.Gray;
Environment.Exit(1);
}
Console.ForegroundColor = ConsoleColor.Gray;
#endregion
#region Check Semantics
// ////// Check Semantics ////// //////
ASTBuilder builder = new ASTBuilder();
AST.Program p = (AST.Program)builder.Visit(tree);
if (p.Errors.Count > 0 || p.CheckSemantics().Count > 0)
{
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Semantic errors: ");
Console.ForegroundColor = ConsoleColor.Yellow;
foreach (Error e in p.Errors)
{
Console.WriteLine(e);
}
Console.ForegroundColor = ConsoleColor.Gray;
//File.Delete(args[0] + ".lexer.errors.txt");
//File.Delete(args[0] + ".parser.errors.txt");
Environment.Exit(1);
//Console.WriteLine();
}
else
{
Console.ForegroundColor = ConsoleColor.Green;
Console.Write("[Cool code]\t");
Console.ForegroundColor = ConsoleColor.Gray;
}
//Console.WriteLine();
//return;
#endregion
#region Generate Code
////// ////// Code Generation ////// //////
// TODO Generate Code
DotCodeGenerator dcg = new DotCodeGenerator(args[0]);
dcg.Visit(tree);
Builder b = new Builder(args[0]);
try
{
b.Compile(tree);
#endregion
#region Exit
////// ////// Exit ////// //////
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("{0,17}", "[Build succeded]");
Console.ForegroundColor = ConsoleColor.Gray;
#endregion
}
catch (Exception)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("{0,17}", "[Build failed]");
Console.ForegroundColor = ConsoleColor.Gray;
}
File.Delete(args[0] + ".lexer.errors.txt");
File.Delete(args[0] + ".parser.errors.txt");
}
public AbstractSyntaxTree(AST.Program root)
{
this.Root = root;
}
