//Should it be Func_expr or Func_stmt?
public override void EnterFunc_expr([NotNull] GrammarParser.Func_exprContext context)
{
ScopeNode LocalScope = new ScopeNode();
Scopes.Add(LocalScope);
LocalScope.Parent = currentScope;
currentScope = LocalScope;
base.EnterFunc_expr(context);
}
/// <summary>
/// Exit a parse tree produced by <see cref="GrammarParser.func_expr"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitFunc_expr([NotNull] GrammarParser.Func_exprContext context)
{
}
public override void ExitFunc_expr([NotNull] GrammarParser.Func_exprContext context)
{
currentScope = currentScope.Parent;
base.ExitFunc_expr(context);
}
/// <summary>
/// Visit a parse tree produced by <see cref="GrammarParser.func_expr"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitFunc_expr([NotNull] GrammarParser.Func_exprContext context)
{
return(VisitChildren(context));
}
public override bool VisitFunc_expr([NotNull] GrammarParser.Func_exprContext context)
{
Console.WriteLine("Function Expression");
switch (context.GetChild(0).GetText())
{
case "Drive":
int distance;
if (Int32.TryParse((context.GetChild(2).GetText()), out distance))
{
;
}
else
{
string variable = LookUp(context.GetChild(2).GetText());
Int32.TryParse(variable, out distance);
}
int speed;
if (Int32.TryParse((context.GetChild(4).GetText()), out speed))
{
;
}
else
{
string variable = LookUp(context.GetChild(4).GetText());
Int32.TryParse(variable, out speed);
}
speed *= 10;
int pauseTime = Math.Abs(distance / (speed / 10));
using (StreamWriter sw = File.AppendText(path))
{
sw.Write($"{prefix}self.create.drive_direct({speed}, {speed})" +
$"{prefix}self.time.sleep({pauseTime})" +
$"{prefix}self.create.drive_direct(0,0)");
scopeCount--;
if (scopeCount == 0)
{
prefix = removePrefix(prefix, "\t");
}
sw.Write($"{prefix}");
}
break;
default:
Console.WriteLine("Wrong!");
break;
}
return(base.VisitFunc_expr(context));
}
