private IExpression Visit(VBAConditionalCompilationParser.LiteralContext context)
{
if (context.HEXLITERAL() != null)
{
return(VisitHexLiteral(context));
}
else if (context.OCTLITERAL() != null)
{
return(VisitOctLiteral(context));
}
else if (context.DATELITERAL() != null)
{
return(VisitDateLiteral(context));
}
else if (context.FLOATLITERAL() != null)
{
return(VisitFloatLiteral(context));
}
else if (context.INTEGERLITERAL() != null)
{
return(VisitIntegerLiteral(context));
}
else if (context.STRINGLITERAL() != null)
{
return(VisitStringLiteral(context));
}
else if (context.TRUE() != null)
{
return(new ConstantExpression(new BoolValue(true)));
}
else if (context.FALSE() != null)
{
return(new ConstantExpression(new BoolValue(false)));
}
else if (context.NOTHING() != null || context.NULL() != null)
{
return(new ConstantExpression(null));
}
else if (context.EMPTY() != null)
{
return(new ConstantExpression(EmptyValue.Value));
}
throw new Exception(string.Format("Unexpected literal encountered: {0}", ParserRuleContextHelper.GetText(context, _stream)));
}
private IExpression VisitHexLiteral(VBAConditionalCompilationParser.LiteralContext context)
{
return(new HexNumberLiteralExpression(new ConstantExpression(new StringValue(context.HEXLITERAL().GetText()))));
}