public override Lazy <object> VisitPostfixUnaryExpression(
QuestScriptParser.PostfixUnaryExpressionContext context)
{
var type = _scriptEnvironmentBuilder.TypeInferenceVisitor.Visit(context.expr);
if (!TypeUtil.IsNumeric(type))
{
_scriptEnvironmentBuilder.Errors.Add(new UnexpectedTypeException(context, ObjectType.Integer, type,
context.expr, "Expected the incremented expression to be numeric, but it wasn't."));
return(new Lazy <object>(() => null));
}
dynamic GetValueOfExpression(ParserRuleContext expr)
{
return(expr.Accept(this).Value.GetValueOrLazyValue());
}
switch (context.op.Text)
{
case "++":
return(new Lazy <object>(() =>
{
var plusplus = GetValueOfExpression(context.expr);
return (object)++plusplus;
}));
case "--":
return(new Lazy <object>(() =>
{
var minusminus = GetValueOfExpression(context.expr);
return (object)--minusminus;
}));
}
return(base.VisitPostfixUnaryExpression(context));
}
public override ObjectType VisitPostfixUnaryExpression(QuestScriptParser.PostfixUnaryExpressionContext context)
{
return(context.expr.Accept(this));
}