protected override Variable Evaluate(ParsingScript script)
{
bool isList;
List <Variable> functionArgs = Utils.GetArgs(script,
Constants.START_ARG, Constants.END_ARG, out isList);
//script.MoveForwardIf(Constants.END_ARG);
script.MoveBackIf(Constants.START_GROUP);
if (functionArgs.Count != m_args.Length)
{
throw new ArgumentException("Function [" + m_name + "] arguments mismatch: " +
m_args.Length + " declared, " + functionArgs.Count + " supplied");
}
// 1. Add passed arguments as local variables to the Parser.
StackLevel stackLevel = new StackLevel(m_name);
for (int i = 0; i < m_args.Length; i++)
{
stackLevel.Variables[m_args[i]] = new GetVarFunction(functionArgs[i]);
}
ParserFunction.AddLocalVariables(stackLevel);
// 2. Execute the body of the function.
Variable result = null;
ParsingScript tempScript = new ParsingScript(m_body);
tempScript.ScriptOffset = m_parentOffset;
if (m_parentScript != null)
{
tempScript.Char2Line = m_parentScript.Char2Line;
tempScript.Filename = m_parentScript.Filename;
tempScript.OriginalScript = m_parentScript.OriginalScript;
}
while (tempScript.Pointer < m_body.Length - 1 &&
(result == null || !result.IsReturn))
{
result = tempScript.ExecuteTo();
tempScript.GoToNextStatement();
}
ParserFunction.PopLocalVariables();
//script.MoveForwardIf(Constants.END_ARG);
//script.MoveForwardIf(Constants.END_STATEMENT);
if (result == null)
{
result = Variable.EmptyInstance;
}
else
{
result.IsReturn = false;
}
return(result);
}
public void RegisterArguments(List <Variable> args)
{
StackLevel stackLevel = new StackLevel(m_name);
for (int i = 0; i < m_args.Length; i++)
{
stackLevel.Variables[m_args [i]] = new GetVarFunction(args [i]);
}
ParserFunction.AddLocalVariables(stackLevel);
}
protected override Variable Evaluate(string data, ref int from)
{
bool isList;
List <Variable> functionArgs = Utils.GetArgs(data, ref from,
Constants.START_ARG, Constants.END_ARG, out isList);
Utils.MoveBackIf(data, ref from, Constants.START_GROUP);
if (functionArgs.Count != _args.Length)
{
throw new ArgumentException("Функция [" + _name + "] аргументи несъответствие: " +
_args.Length + " обявен, " + functionArgs.Count + " доставен");
}
// 1. Добавете предаваните аргументи като локални променливи към анализатора.
StackLevel stackLevel = new StackLevel(_name);
for (int i = 0; i < _args.Length; i++)
{
stackLevel.Variables[_args[i]] = new GetVarFunction(functionArgs[i]);
}
ParserFunction.AddLocalVariables(stackLevel);
// 2. Изпълнете тялото на функцията.
int temp = 0;
Variable result = null;
while (temp < _body.Length - 1)
{
result = Parser.LoadAndCalculate(_body, ref temp, Constants.END_PARSE_ARRAY);
Utils.GoToNextStatement(_body, ref temp);
}
ParserFunction.PopLocalVariables();
return(result);
}
