private object MtCons(ScriptThread thread, object[] args)
{
var ret = new MtResult();
var head = args[0] as MtResult;
var tail = args[1] as MtResult;
// we can eval the head later ;)
tail.GetValue(o =>
{
var arr = o.Value as MtResult[];
if (arr == null)
{
throw new Exception("Cons expected a list!");
}
var ret_arr = new MtResult[arr.Length + 1];
ret_arr[0] = head;
Array.Copy(arr, 0, ret_arr, 1, arr.Length);
ret.SetValue(new MtObject(ret_arr));
});
return(ret);
}
protected override object DoEvaluate(ScriptThread thread)
{
thread.CurrentNode = this;
try
{
var result = new MtResult();
var targetThread = _target.NewScriptThread(thread);
var rTarget = _target.Evaluate(targetThread) as MtResult;
var sourceThread = _source.NewScriptThread(thread);
var rSource = _source.Evaluate(sourceThread) as MtResult;
rTarget.GetValue(target =>
{
rSource.GetValue(source =>
{
MtStream.ReadFromWriteTo(
source.Value as MtStream, target.Value as MtStream, () => {
result.SetValue(MtObject.True);
});
});
});
return(result);
}
catch (Exception e)
{
throw new Exception("Exception on MtFlowRightToLeft.DoEvaluate", e);
}
finally
{
//thread.CurrentNode = Parent;
}
}
private object MtGreater(ScriptThread thread, object[] args)
{
var ret = new MtResult();
var arg0 = args[0] as MtResult;
var arg1 = args[1] as MtResult;
arg0.GetValue(o1 =>
{
arg1.GetValue(o2 =>
{
int i1 = (int)o1.Value;
int i2 = (int)o2.Value;
if (i1 > i2)
{
ret.SetValue(MtObject.True);
}
else
{
ret.SetValue(MtObject.False);
}
});
});
return(ret);
}
protected override object DoEvaluate(Irony.Interpreter.ScriptThread thread)
{
thread.CurrentNode = this;
try
{
var res = new MtResult();
var accessor = thread.Bind(_targetName.AsString, BindingRequestFlags.Write | BindingRequestFlags.ExistingOrNew);
accessor.SetValueRef(thread, res);
// To allow recursive definitions, we have
// to evaluate _expression inside the new context.
var exprResult = _expression.Evaluate(thread) as MtResult;
exprResult.GetValue((o) =>
{
res.SetValue((state) =>
{
return(o);
});
});
return(res);
}
catch (Exception e)
{
throw new Exception("Exception on MtBind.DoEvaluate", e);
}
finally
{
//thread.CurrentNode = Parent;
}
}
public object MtHttpStream(ScriptThread thread, object[] arguments)
{
var result = new MtResult();
var arg0 = arguments[0] as MtResult;
arg0.GetValue(httpstuff =>
{
if (httpstuff.Value is HttpListenerRequest)
{
var wrkValue = httpstuff.Value as HttpListenerRequest;
result.SetValue(new MtObject(new MtStreamWrapper(wrkValue.InputStream)));
}
else if (httpstuff.Value is HttpListenerResponse)
{
var wrkValue = httpstuff.Value as HttpListenerResponse;
result.SetValue(new MtObject(new MtStreamWrapper(wrkValue.OutputStream)));
}
else
{
throw new Exception("Neither a request nor a response!");
}
});
return(result);
}
private MtResult MtCdr(ScriptThread thread, object[] args)
{
var ret = new MtResult();
var arr = args[0] as MtResult;
arr.GetValue((o) =>
{
var wrkArr = o.Value as MtResult[];
if (wrkArr == null)
{
throw new Exception("Argument is not an array!");
}
if (wrkArr.Length == 0 || wrkArr.Length == 1)
{
ret.SetValue(new MtObject(new MtResult[0]));
}
else
{
ret.SetValue((state) =>
{
var tail = new MtResult[wrkArr.Length - 1];
Array.Copy(wrkArr, 1, tail, 0, tail.Length);
return(new MtObject(tail));
});
}
});
return(ret);
}
private object MtAnd(ScriptThread thread, object[] args)
{
var ret = new MtResult();
var arg0 = args[0] as MtResult;
var arg1 = args[1] as MtResult;
arg0.GetValue(o1 =>
{
arg1.GetValue(o2 =>
{
if (MtObject.True.Value == o1.Value &&
MtObject.True.Value == o2.Value)
{
ret.SetValue(MtObject.True);
}
else
{
ret.SetValue(MtObject.False);
}
});
});
return(ret);
}
private object MtSliceUntil(ScriptThread thread, object[] args)
{
var ret = new MtResult();
var the_list = args[0] as MtResult;
var the_idx = args[1] as MtResult;
the_list.GetValue(o_list =>
{
var arr = o_list.Value as MtResult[];
if (arr == null)
{
throw new Exception("slice_until expected a list!");
}
the_idx.GetValue(o_idx =>
{
var idx = (int)o_idx.Value;
var ret_arr = new MtResult[idx];
Array.Copy(arr, ret_arr, ret_arr.Length);
ret.SetValue(new MtObject(ret_arr));
});
});
return(ret);
}
protected override object DoEvaluate(ScriptThread thread)
{
thread.CurrentNode = this;
try
{
var programResult = new MtResult();
// do NOT use this for anything else other than counting the number of to-finish-threads
var count = _chains.Count;
var waitForAllToEnd = new ManualResetEvent(false);
// TODO THIS NEEDS TO BE FIXED!
// The rest of the program only cares about the result of the last expression
// which doesn't depend of the result of the previous expressions;
// however, the program shouldn't end.
// SOLUTION: Keep a global counter of all awaiting MtResults?
for (int i = 0; i < _chains.Count; ++i)
{
// This is here because of issues with closures using the for variable
var safe_i = i + 0;
var ch = _chains[i];
var subthread = ch.NewScriptThread(thread);
var chResult = ch.Evaluate(subthread) as MtResult;
// Lookout:
// do not capture anything loop related inside here
chResult.GetValue(delegate(MtObject x)
{
if (Interlocked.Decrement(ref count) == 0)
{
waitForAllToEnd.Set();
}
// Wait for the last chain to end.
// Last refers in the order of the chain in the code,
// not the order of execution!!!
if (safe_i == _chains.Count - 1)
{
// Wait for the end of *all* the chains before returning ...
waitForAllToEnd.WaitOne();
programResult.SetValue(x);
}
});
}
// Return value does not matter. This is asynchronous, remember?
return(programResult);
}
catch (Exception e)
{
throw new Exception("Exception on MtProgram.", e);
}
finally
{
//thread.CurrentNode = Parent;
}
}
public MtResult MtDiv(ScriptThread thread, object[] args)
{
var result = new MtResult();
var reducer = new DivReducer(result);
reducer.Reduce(args);
return(result);
}
public MtResult MtSleep(ScriptThread thread, object[] args)
{
var result = new MtResult();
MtObject sleepResult = null;
var sleepMs = args[0] as MtResult;
var sleepEval = args.Length > 1 ? args[1] as MtResult : MtResult.True;
var waitValue = new ManualResetEvent(false);
// eval number of milliseconds to wait
sleepMs.GetValue((waitPeriod) =>
{
// eval value to return
sleepEval.GetValue((retValue) =>
{
sleepResult = retValue;
// Signal: We have a value!
waitValue.Set();
});
// set value, async
result.SetValue((state) =>
{
#if DEBUG && !SILVERLIGHT
Debug.Print("MtSleep #1 Thread {0} {1:mm:ss.ffff} start sleep", Thread.CurrentThread.ManagedThreadId, DateTime.Now);
#endif
// Wait period and, if need be, wait for sleepResult
var to_wait = (int)waitPeriod.Value;
if (to_wait > 0)
{
Thread.Sleep(to_wait);
}
#if DEBUG && !SILVERLIGHT
Debug.Print("MtSleep #2 Thread {0} {1:mm:ss.ffff} end sleep, wait value", Thread.CurrentThread.ManagedThreadId, DateTime.Now);
#endif
// Wait for signal...
waitValue.WaitOne();
#if DEBUG && !SILVERLIGHT
Debug.Print("MtSleep #3 Thread {0} {1:mm:ss.ffff} has value", Thread.CurrentThread.ManagedThreadId, DateTime.Now);
#endif
if (sleepResult == null)
{
throw new Exception("Sleep can't return null!");
}
return(sleepResult);
});
});
return(result);
}
private MtResult MtMap(ScriptThread thread, object[] args)
{
var result = new MtResult();
var arrExpression = args[0] as MtResult;
var fun = args[1];
arrExpression.GetValue((arr) =>
{
// arr
MtResult[] wrkArr = arr.Value as MtResult[];
if (wrkArr == null)
{
throw new Exception("Array expression is null!");
}
MtFunctionObjectBase.ExtractAsFunction(fun, (wrkFun) =>
{
// Launch and wait for all to end
var count = wrkArr.Length;
var res = new MtResult[count];
if (count > 0)
{
var waitForEndOfAll = new ManualResetEvent(false);
for (var i = 0; i < wrkArr.Length; ++i)
{
int copy_i = i;
var ret = wrkFun.Call(thread, new object[] { wrkArr[i] });
if (ret == null)
{
throw new Exception("Return of application in map is null!");
}
var wrkRet = ret as MtResult;
wrkRet.WaitForValue((r) =>
{
res[copy_i] = r;
if (Interlocked.Decrement(ref count) == 0)
{
waitForEndOfAll.Set();
}
});
}
waitForEndOfAll.WaitOne();
}
result.SetValue(new MtObject(res));
});
});
return(result);
}
protected override object DoEvaluate(Irony.Interpreter.ScriptThread thread)
{
// PROLOG
thread.CurrentNode = this;
try
{
var appResult = new MtResult();
MtResult[] args = _args.Evaluate(thread) as MtResult[];
if (args == null)
{
throw new Exception("Args evaluated to null!");
}
var subthreadF = _head.NewScriptThread(thread);
var headResult = _head.Evaluate(subthreadF);
if (headResult == null)
{
throw new Exception("Head can't evaluate to null!");
}
MtFunctionObjectBase.ExtractAsFunction(headResult, (wrkFun) =>
{
#if DEBUG && !SILVERLIGHT
if (wrkFun is BuiltInCallTarget)
{
var builtin = wrkFun as BuiltInCallTarget;
Debug.Print("Calling builtin: {0}", builtin.Name);
}
else
{
Debug.Print("Calling user function");
}
#endif
var resultFun = wrkFun.Call(thread, args) as MtResult;
resultFun.GetValue((r3) =>
{
appResult.SetValue(r3);
});
});
return(appResult);
}
catch (Exception e)
{
throw new Exception("Exception on MtApplication.", e);
}
finally
{
// EPILOG
//thread.CurrentNode = Parent;
}
}
public MtResult MtPrint(ScriptThread thread, object[] args)
{
try
{
var r = new MtResult();
Monitor.Enter(_mtPrintLock);
try
{
Reduce(args, (o) =>
{
String toWrite = o == null ? "<null>" : o.ToString();
if (OutputStream != null)
{
byte[] raw = Encoding.UTF8.GetBytes(toWrite);
OutputStream.Write(raw, 0, raw.Length);
}
thread.App.Write(toWrite);
}, () =>
{
// Write new lines
if (OutputStream != null)
{
OutputStream.Write(_newLineRaw, 0, _newLineRaw.Length);
OutputStream.Flush();
}
thread.App.WriteLine("");
r.SetValue(MtObject.True);
});
}
catch (Exception e)
{
throw new Exception("Error printing stuff.", e);
}
finally
{
// Sync wait to avoid race conditions
// while printing ...
r.WaitForValue();
Monitor.Exit(_mtPrintLock);
}
return(r);
}
catch (Exception e)
{
throw new Exception("Exception on Runtime function: print", e);
}
}
protected override object DoEvaluate(Irony.Interpreter.ScriptThread thread)
{
thread.CurrentNode = this;
try
{
MtResult[] result = new MtResult[_args.Count];
for (var i = 0; i < _args.Count; ++i)
{
try
{
var subthread = _args[i].NewScriptThread(thread);
var evalResult = _args[i].Evaluate(subthread);
if (evalResult == null)
{
throw new Exception(string.Format("_args[{0}].Evaluate evaluated to null!", i));
}
if (evalResult is MtResult)
{
result[i] = evalResult as MtResult;
}
else
{
// A function, wrap it!
result[i] = MtResult.CreateAndWrap(evalResult);
}
if (result[i] == null)
{
throw new Exception("Result is a non-MtResult!");
}
}
catch (Exception e)
{
throw new Exception(string.Format("There was a problem evaluating arg {0}", i), e);
}
}
return(result);
}
catch (Exception e)
{
throw new Exception("Error on MtArguments.DoEvaluate", e);
}
finally
{
//thread.CurrentNode = Parent;
}
}
public object MtWait(ScriptThread thread, object[] arguments)
{
// Wait for all arguments. Blocking.
for (var i = 0; i < arguments.Length; ++i)
{
var arg = arguments[i] as MtResult;
if (arg == null)
{
throw new Exception("Unexpected argument!");
}
arg.WaitForValue();
}
// Returns all the arguments, in an array
return(MtResult.CreateAndWrap(arguments));
}
public object MtHttpEnd(ScriptThread thread, object[] arguments)
{
var result = new MtResult();
var arg0 = arguments[0] as MtResult;
arg0.GetValue(response =>
{
var wrkResponse = response.Value as HttpListenerResponse;
if (wrkResponse == null)
{
throw new Exception("No response!");
}
wrkResponse.Close();
});
return(result);
}
protected override object DoEvaluate(Irony.Interpreter.ScriptThread thread)
{
thread.CurrentNode = this;
try
{
var myRes = new MtResult();
// Eval expression
var subthread = _expression.NewScriptThread(thread);
var res = _expression.Evaluate(subthread) as MtResult;
res.GetValue((resExpr) =>
{
AstNode toEval = null;
if (resExpr.Value == MtObject.False.Value)
{
// Evaluate false branch
toEval = _falseBranch;
}
else
{
// Evaluate true branch
toEval = _trueBranch;
}
// Evaluate!
var subsubthread = toEval.NewScriptThread(thread);
var resBranch = toEval.Evaluate(subsubthread) as MtResult;
resBranch.GetValue((_resBranch) =>
{
myRes.SetValue(_resBranch);
});
});
return(myRes);
}
catch (Exception e)
{
throw new Exception("Exception on If.DoEvaluate.", e);
}
finally
{
//thread.CurrentNode = Parent;
}
}
protected override object DoEvaluate(Irony.Interpreter.ScriptThread thread)
{
// PROLOG
thread.CurrentNode = this;
try
{
// Atoms are synchronous, and evaluate to MtObjects
return(MtResult.CreateAndWrap(_value));
}
catch (Exception e)
{
throw new Exception("Exception on MtAtom.", e);
}
finally
{
// EPILOG
//thread.CurrentNode = Parent;
}
}
public object MtUriStreamCreate(ScriptThread thread, object[] arguments)
{
#if DEBUG && !SILVERLIGHT
Debug.Print("Create stream from uri");
#endif
try
{
var result = new MtResult();
var rUri = arguments[0] as MtResult;
rUri.GetValue((uri) =>
{
string strUri = uri.Value as string;
try
{
var dummy = new Uri(strUri);
}
catch
{
// Assume its a filename
// Try to combine with Env.CurrentDir
strUri = Path.Combine(Environment.CurrentDirectory, strUri);
}
var wrkUri = new Uri(strUri);
if (wrkUri.Scheme == Uri.UriSchemeFile)
{
result.SetValue(new MtObject(new MtStreamFile(strUri as string)));
}
else
{
throw new Exception("Unsupported uri scheme: " + wrkUri.Scheme);
}
});
return(result);
}
catch (Exception e)
{
throw new Exception("Exception on uri stream create.", e);
}
}
public object MtHttpSetCode(ScriptThread thread, object[] arguments)
{
var result = new MtResult();
var arg0 = arguments[0] as MtResult;
var arg1 = arguments[1] as MtResult;
arg0.GetValue(o =>
{
arg1.GetValue(code =>
{
var response = o.Value as HttpListenerResponse;
response.StatusCode = (int)code.Value;
result.SetValue(MtObject.True);
});
});
return(result);
}
public object MtStreamsClose(ScriptThread thread, object[] arguments)
{
#if DEBUG && !SILVERLIGHT
Debug.Print("Close streams");
#endif
try
{
var result = new MtResult();
var count = arguments.Length;
foreach (var arg in arguments)
{
var wrkArg = arg as MtResult;
if (wrkArg == null)
{
throw new Exception("Argument is not a MtResult!");
}
wrkArg.GetValue(stream =>
{
var wrkStream = stream.Value as MtStream;
if (wrkStream == null)
{
throw new Exception("Argument is not a stream!");
}
wrkStream.Close();
if (Interlocked.Decrement(ref count) == 0)
{
result.SetValue(MtObject.True);
}
});
}
return(result);
}
catch (Exception e)
{
throw new Exception("Exception on close(streams, ...)", e);
}
}
private object MtNot(ScriptThread thread, object[] args)
{
var ret = new MtResult();
var the_arg = args[0] as MtResult;
the_arg.GetValue(o =>
{
if (o.Value == MtObject.False.Value)
{
ret.SetValue(MtObject.True);
}
else
{
ret.SetValue(MtObject.False);
}
});
return(ret);
}
private MtResult MtCar(ScriptThread thread, object[] args)
{
var ret = new MtResult();
var arr = args[0] as MtResult;
arr.GetValue((o) =>
{
var wrkArr = o.Value as MtResult[];
if (wrkArr == null)
{
throw new Exception("Argument is not an array!");
}
wrkArr[0].GetValue((head) =>
{
ret.SetValue(head);
});
});
return(ret);
}
private object MtLength(ScriptThread thread, object[] args)
{
var ret = new MtResult();
var arg0 = args[0] as MtResult;
arg0.GetValue((o) =>
{
var arr = o.Value as MtResult[];
if (arr == null)
{
ret.SetValue(new MtObject(0));
}
else
{
ret.SetValue(new MtObject(arr.Length));
}
});
return(ret);
}
private MtResult MtZero(ScriptThread thread, object[] args)
{
try
{
var res = new MtResult();
var arg = args[0] as MtResult;
arg.GetValue((o) =>
{
int value = (int)o.Value;
res.SetValue(value == 0 ? MtObject.True : MtObject.False);
});
return(res);
}
catch (Exception e)
{
throw new Exception("Exception on Runtime function: zero", e);
}
}
protected override object DoEvaluate(Irony.Interpreter.ScriptThread thread)
{
thread.CurrentNode = this;
try
{
var ret = new MtResult();
ret.SetValue(new MtObject(new MtFunctionObject(_body, _arguments, thread)));
return(ret);
}
catch (Exception e)
{
throw new Exception("Error on MtFunctionLiteral.DoEvaluate", e);
}
finally
{
//thread.CurrentNode = Parent;
}
}
public object MtStringStreamCreate(ScriptThread thread, object[] arguments)
{
#if DEBUG && !SILVERLIGHT
Debug.Print("Create stream from string");
#endif
try
{
var result = new MtResult();
var rStr = arguments[0] as MtResult;
rStr.GetValue((str) =>
{
result.SetValue(new MtObject(new MtStreamString(str.Value as string)));
});
return(result);
}
catch (Exception e)
{
throw new Exception("Error on string stream create.", e);
}
}
private object MtSliceFrom(ScriptThread thread, object[] args)
{
var ret = new MtResult();
var the_list = args[0] as MtResult;
var the_idx = args[1] as MtResult;
the_list.GetValue(o_list =>
{
var arr = o_list.Value as MtResult[];
if (arr == null)
{
throw new Exception("slice_from expected a list!");
}
the_idx.GetValue(o_idx =>
{
var idx = (int)o_idx.Value;
idx = idx < 0 ? 0 : idx;
if (idx >= arr.Length)
{
// If idx is outside array, return an empty array
ret.SetValue(new MtObject(new MtResult[0]));
}
else
{
var len = arr.Length;
var ret_arr = new MtResult[len - idx];
Array.Copy(arr, idx, ret_arr, 0, ret_arr.Length);
ret.SetValue(new MtObject(ret_arr));
}
});
});
return(ret);
}
/// <summary>
/// Create http server. Pass prefixes as arguments
/// </summary>
/// <param name="thread"></param>
/// <param name="arguments"></param>
/// <returns></returns>
public object MtHttpServerCreate(ScriptThread thread, object[] arguments)
{
var result = new MtResult();
var prefixes = new string[arguments.Length];
var count = arguments.Length;
for (var i = 0; i < arguments.Length; ++i)
{
var copy_i = i;
var wrkArg = arguments[copy_i] as MtResult;
wrkArg.GetValue(o =>
{
prefixes[copy_i] = o.Value as string;
if (Interlocked.Decrement(ref count) == 0)
{
result.SetValue(new MtObject(new MtServerHttp(prefixes)));
}
});
}
return(result);
}
