/// <summary>
/// Iterate over the list of transforemd tokens generated from the token list generated
/// by the tokenizer and generate a list of
/// </summary>
public bool PreInterpret()
{
Dictionary <string, int> definedLabels = new Dictionary <string, int>()
{
};
for (int i = 0; i < this.InputTokens.Count; i++)
{
TransformedToken currentToken = this.InputTokens[i];
if (
currentToken.Type == TransformedTokenType.LabelDefinition ||
currentToken.Type == TransformedTokenType.StacklessLabelDefinition
)
{
if (!definedLabels.ContainsKey(currentToken.Data[0]))
{
definedLabels.Add(currentToken.Data[0], i);
}
}
}
this.Environment.DefinedLabels = definedLabels;
return(true);
}
/// <summary>
/// Iterate over the list of transformed tokens generated from the token list generated
/// by the tokenizer and produce a result.
/// </summary>
public void Interpret()
{
Stopwatch interpreterStopwatch = new Stopwatch();
interpreterStopwatch.Start();
while (this.Environment.CurrentTokenIndex < this.InputTokens.Count)
{
TransformedToken currentToken = this.InputTokens[this.Environment.CurrentTokenIndex];
switch (currentToken.Type)
{
case TransformedTokenType.CallFunction:
if (this.Functions.ContainsKey(currentToken.Data[0]))
{
bool success = this.Functions[currentToken.Data[0]].Execute(this, this.Environment);
if (!success)
{
goto exitInterpreter;
}
}
else
{
Errors.UnknownFunction.Report(
currentToken.Position.File,
currentToken.Position.Line,
currentToken.Position.Column,
currentToken.Data[0]
);
goto exitInterpreter;
}
this.Environment.CurrentTokenIndex++;
break;
case TransformedTokenType.LabelDefinition:
this.Environment.CurrentTokenIndex++;
break;
case TransformedTokenType.LabelUsage:
this.Environment.LabelStack.Push(currentToken);
this.Environment.CurrentTokenIndex++;
break;
case TransformedTokenType.StacklessLabelDefinition:
this.Environment.CurrentTokenIndex++;
break;
case TransformedTokenType.StacklessLabelUsage:
this.Environment.LabelStack.Push(currentToken);
this.Environment.CurrentTokenIndex++;
break;
case TransformedTokenType.Name:
this.Environment.NameStack.Push(currentToken);
this.Environment.CurrentTokenIndex++;
break;
default:
this.Environment.ValueStack.Push(currentToken);
this.Environment.CurrentTokenIndex++;
break;
}
}
exitInterpreter:
if (this.GlobalOptions.Contains("ENABLE_STAGE_TIMING_OUTPUT"))
{
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine(
"[TIMING::Interpreter] Stage took {0}s / {1}ms / {2}t.",
interpreterStopwatch.Elapsed,
interpreterStopwatch.ElapsedMilliseconds,
interpreterStopwatch.ElapsedTicks
);
Console.ResetColor();
}
if (this.GlobalOptions.Contains("ENABLE_STAGE_EXIT_ERROR"))
{
Errors.ExitInterpreter.Report("", 0, 0);
}
}
