/// <summary>
/// Safely execute a function
/// </summary>
/// <param name="info">Callback information for the function</param>
internal void SafeExecute(FunctionCallbackInfo info)
{
try
{
Execute(info);
}
catch (InterpreterException)
{
throw;
}
catch (Exception e)
{
ThrowHelper.NativeFunctionError(Name, e);
}
}
/// <summary>
/// Execute a function inside the interpreter
/// </summary>
/// <param name="function">Function to be executed</param>
/// <param name="parameters">Parameters to be passed to a function</param>
/// <returns>The result of the function</returns>
public override KObject CallFunction(KFunction function, List <KLocal> parameters)
{
FunctionSymbol fSymbol = function.Value;
FunctionSpace fSpace = new FunctionSpace(fSymbol);
MemorySpace savedSpace = _currentSpace;
_currentSpace = fSpace;
if (!function.IsNative)
{
parameters.ForEach(x => fSpace[x.Name] = x);
}
KObject result = null;
_stack.Push(fSpace);
try
{
if (function.IsNative)
{
FunctionCallbackInfo cInfo = new FunctionCallbackInfo(parameters, this);
((NativeFunctionSymbol)fSymbol).NativeFunction.SafeExecute(cInfo);
result = cInfo.ReturnValue.Value;
}
else
{
Execute(fSymbol.BlockAst);
}
}
catch (ReturnValue returnValue)
{
result = returnValue.Value;
}
finally
{
_currentSpace = savedSpace;
}
_stack.Pop();
return(result);
}
/// <summary> /// Function extended that contains the real logic for the function /// </summary> /// <param name="info">Callback information for the function</param> public abstract void Execute(FunctionCallbackInfo info);