private ScriptVarLink FunctionCall(ref bool execute, ScriptVarLink function, ScriptVar parent)
{
if (execute)
{
if (!function.Var.IsFunction)
{
throw new ScriptException(String.Format("{0} is not a function", function.Name));
}
currentLexer.Match((ScriptLex.LexTypes) '(');
var functionRoot = new ScriptVar(null, ScriptVar.Flags.Function);
if (parent != null)
{
functionRoot.AddChildNoDup("this", parent);
}
var v = function.Var.FirstChild;
while (v != null)
{
var value = Base(ref execute);
if (execute)
{
if (value.Var.IsBasic)
{
//pass by val
functionRoot.AddChild(v.Name, value.Var.DeepCopy());
}
else
{
//pass by ref
functionRoot.AddChild(v.Name, value.Var);
}
}
if (currentLexer.TokenType != (ScriptLex.LexTypes) ')')
{
currentLexer.Match((ScriptLex.LexTypes) ',');
}
v = v.Next;
}
currentLexer.Match((ScriptLex.LexTypes) ')');
var returnVarLink = functionRoot.AddChild(ScriptVar.ReturnVarName, null);
scopes.PushBack(functionRoot);
//callStack.PushBack(string.Format("{0} from line {1}", function.Name, currentLexer.LineNumber));
callStack.Push(function);
if (function.Var.IsNative)
{
var func = function.Var.GetCallback();
func?.Invoke(functionRoot, function.Var.GetCallbackUserData());
}
else
{
var oldLex = currentLexer;
var newLex = new ScriptLex(function.Var.String);
currentLexer = newLex;
try
{
Block(ref execute);
execute = true;
}
catch
{
throw;
}
finally
{
currentLexer = oldLex;
}
}
callStack.Pop();
scopes.PopBack();
var returnVar = new ScriptVarLink(returnVarLink.Var, null);
functionRoot.RemoveLink(returnVarLink);
return(returnVar);
}
else
{
//not executing the function, just parsing it out
currentLexer.Match((ScriptLex.LexTypes) '(');
while (currentLexer.TokenType != (ScriptLex.LexTypes) ')')
{
Base(ref execute);
if (currentLexer.TokenType != (ScriptLex.LexTypes) ')')
{
currentLexer.Match((ScriptLex.LexTypes) ',');
}
}
currentLexer.Match((ScriptLex.LexTypes) ')');
if (currentLexer.TokenType == (ScriptLex.LexTypes) '{') //WTF?
{
Block(ref execute);
}
return(function);
}
}
private ScriptVarLink FunctionCall(ref bool execute, ScriptVarLink function, ScriptVar parent)
{
if (execute)
{
if (!function.Var.IsFunction)
{
throw new ScriptException(String.Format("{0} is not a function", function.Name));
}
_currentLexer.Match((ScriptLex.LexTypes) '(');
ScriptVar functionRoot = new ScriptVar(null, ScriptVar.Flags.Function);
if (parent != null)
{
functionRoot.AddChildNoDup("this", parent);
}
ScriptVarLink v = function.Var.FirstChild;
while (v != null)
{
ScriptVarLink value = Base(ref execute);
if (value.Var.IsBasic)
{
//pass by val
functionRoot.AddChild(v.Name, value.Var.DeepCopy());
}
else
{
//pass by ref
functionRoot.AddChild(v.Name, value.Var);
}
if (_currentLexer.TokenType != (ScriptLex.LexTypes) ')')
{
_currentLexer.Match((ScriptLex.LexTypes) ',');
}
v = v.Next;
}
_currentLexer.Match((ScriptLex.LexTypes) ')');
ScriptVarLink returnVarLink = functionRoot.AddChild(ScriptVar.ReturnVarName, null);
_scopes.Push(functionRoot);
_callStack.Push(String.Format("{0} from line {1}", function.Name, _currentLexer.LineNumber));
if (function.Var.IsNative)
{
ScriptCallbackCB func = function.Var.GetCallback();
if (func != null)
{
func(functionRoot, function.Var.GetCallbackUserData(), parent);
}
}
else
{
ScriptException ex = null;
ScriptLex oldLex = _currentLexer;
ScriptLex newLex = new ScriptLex(function.Var.GetString());
_currentLexer = newLex;
try
{
Block(ref execute);
execute = true;
}
catch (ScriptException e)
{
ex = e;
}
_currentLexer = oldLex;
if (ex != null)
{
throw ex;
}
}
_callStack.Pop();
_scopes.Pop();
ScriptVarLink returnVar = new ScriptVarLink(returnVarLink.Var, null);
functionRoot.RemoveLink(returnVarLink);
return(returnVar);
}
//not executing the function, just parsing it out
_currentLexer.Match((ScriptLex.LexTypes) '(');
while (_currentLexer.TokenType != (ScriptLex.LexTypes) ')')
{
Base(ref execute);
if (_currentLexer.TokenType != (ScriptLex.LexTypes) ')')
{
_currentLexer.Match((ScriptLex.LexTypes) ',');
}
}
_currentLexer.Match((ScriptLex.LexTypes) ')');
if (_currentLexer.TokenType == (ScriptLex.LexTypes) '{') //WTF?
{
Block(ref execute);
}
return(function);
}