public static void Start(string path)
{
// Benchmarking variables
System.DateTime start = new System.DateTime();
System.TimeSpan duration = new System.TimeSpan();
Object.Object result = null;
string input = readFile(path);
Lexer l = Lexer.New(input);
Parser p = Parser.New(l);
ast.Program program = p.ParseProgram();
if (Parser.Errors().Count != 0)
{
repl.repl.printParserErrors(Parser.Errors());
System.Console.ReadKey();
System.Environment.Exit(77);
}
if (flag.EngineType == flag.engineType.vm)
{
Compiler_t comp = Compiler.New();
Compiler._SetCompiler(ref comp);
error err = Compiler.Compile(program);
if (err != null)
{
System.Console.WriteLine("Woops! Compilation failed:\n {0}", err);
System.Console.ReadKey();
System.Environment.Exit(78);
}
VM_t machine = VM.New(Compiler.Bytecode());
VM._SetVM(ref machine); // work around
if (flag.EnableBenchmark)
{
start = System.DateTime.Now;
}
err = VM.Run();
if (err != null)
{
System.Console.WriteLine("Woops! Executing bytecode failed:\n {0}", err);
System.Console.ReadKey();
System.Environment.Exit(79);
}
if (flag.EnableBenchmark)
{
duration = System.DateTime.Now.Subtract(start);
}
Object.Object lastPopped = VM.LastPoppedStackElem();
System.Console.Write(lastPopped.Inspect());
System.Console.WriteLine();
if (flag.EnableBenchmark)
{
result = lastPopped;
}
}
else
{
Object.Environment env = Object.Environment.NewEnvironment();
if (flag.EnableBenchmark)
{
start = System.DateTime.Now;
}
Object.Object evaluated = evaluator.evaluator.Eval(program, env);
if (flag.EnableBenchmark)
{
duration = System.DateTime.Now.Subtract(start);
}
if (evaluated != null)
{
System.Console.Write(evaluated.Inspect());
System.Console.WriteLine();
}
if (flag.EnableBenchmark)
{
result = evaluated;
}
}
if (flag.EnableBenchmark)
{
System.Console.WriteLine
(
"\nengine={0}, result={1}, duration={2}s",
flag.EngineType.ToString(),
result.Inspect(),
duration.TotalSeconds.ToString()
);
System.Console.ReadKey();
}
}
public static void Start()
{
if (flag.EngineType == flag.engineType.eval)
{
_evalRepl();
return; // unreachable
}
List <Object> constants = new List <Object>();
List <Object> globals = new List <Object>(new Object[VM.GlobalSize]);
symbol_table.SymbolTable symbolTable = symbol_table.NewSymbolTable();
for (int i = 0; i < builtins.Builtins.Length; i++)
{
_BuiltinDefinition v = builtins.Builtins[i];
symbol_table.DefineBuiltin(ref symbolTable, i, v.Name);
}
for (;;)
{
System.Console.Write(PROMPT);
string line = System.Console.ReadLine();
Lexer l = Lexer.New(line);
Parser p = Parser.New(l);
ast.Program program = p.ParseProgram();
if (Parser.Errors().Count != 0)
{
printParserErrors(Parser.Errors());
continue;
}
Compiler_t comp = Compiler.NewWithState(ref symbolTable, constants);
Compiler._SetCompiler(ref comp); // work around
error err = Compiler.Compile(program);
if (err != null)
{
System.Console.WriteLine("Woops! Compilation failed:\n {0}", err);
continue;
}
Bytecode code = Compiler.Bytecode();
constants = code.Constants;
VM_t machine = VM.NewWithGlobalStore(code, ref globals);
VM._SetVM(ref machine); // work around
err = VM.Run();
if (err != null)
{
System.Console.WriteLine("Woops! Executing bytecode failed:\n {0}", err);
continue;
}
Object lastPopped = VM.LastPoppedStackElem();
System.Console.Write(lastPopped.Inspect());
System.Console.WriteLine();
}
}
