public PatternUst VisitLiteral(DslParser.LiteralContext context)
{
PatternUst result;
var textSpan = context.GetTextSpan();
if (context.Id() != null)
{
result = ProcessId(context.Id());
}
else if (context.String() != null)
{
result = new PatternStringLiteral(RemoveQuotes(context.GetText()), textSpan);
}
else if (context.Oct() != null)
{
result = new PatternIntLiteral(
System.Convert.ToInt64(context.Oct().GetText(), 8), textSpan);
}
else if (context.Int() != null)
{
string text = context.Int().GetText();
if (long.TryParse(text, out long longValue))
{
result = new PatternIntLiteral(longValue, textSpan);
}
else
{
result = new PatternBigIntLiteral(longValue, textSpan);
}
}
else if (context.Hex() != null)
{
result = new PatternIntLiteral(
System.Convert.ToInt64(context.Hex().GetText(), 16), textSpan);
}
else if (context.Bool() != null)
{
result = new PatternBooleanLiteral(bool.Parse(context.Bool().GetText()), textSpan);
}
else if (context.Null() != null)
{
result = new PatternNullLiteral(textSpan);
}
else
{
throw new NotImplementedException();
}
return(result);
}
public UstNode VisitPatternIntLiteral(DslParser.PatternIntLiteralContext context)
{
IntLiteral result;
if (context.i != null)
{
result = (IntLiteral)VisitPatternIntExpression(context.i);
}
else
{
result = new PatternIntLiteral(
context.i1 != null ? ((IntLiteral)VisitPatternIntExpression(context.i1)).Value : long.MinValue,
context.i2 != null ? ((IntLiteral)VisitPatternIntExpression(context.i2)).Value : long.MaxValue);
}
result.TextSpan = context.GetTextSpan();
return(result);
}
public PatternUst VisitPatternIntExpression([NotNull] DslParser.PatternIntExpressionContext context)
{
PatternIntLiteral result;
if (context.op != null)
{
long leftValue = ((PatternIntLiteral)VisitPatternIntExpression(context.left)).Value;
long rightValue = ((PatternIntLiteral)VisitPatternIntExpression(context.right)).Value;
long resultValue = 0;
switch (context.op.Text)
{
case "*":
resultValue = leftValue * rightValue;
break;
case "/":
resultValue = leftValue / rightValue;
break;
case "+":
resultValue = leftValue + rightValue;
break;
case "-":
resultValue = leftValue - rightValue;
break;
default:
throw new NotImplementedException($"Operation {context.op.Text} is not implemented");
}
result = new PatternIntLiteral(resultValue, context.GetTextSpan());
}
else
{
result = (PatternIntLiteral)VisitPatternInt(context.patternInt());
}
return(result);
}
public virtual T Visit(PatternIntLiteral patternIntLiteral)
{
return(VisitChildren(patternIntLiteral));
}
public virtual void Exit(PatternIntLiteral patternIntLiteral)
{
}
public virtual void Enter(PatternIntLiteral patternIntLiteral)
{
}
