public Expression VisitZenStringContainmentExpr(ZenStringContainmentExpr expression, ExpressionConverterEnvironment parameter)
{
return(LookupOrCompute(expression, () =>
{
var l = expression.StringExpr.Accept(this, parameter);
var r = expression.SubstringExpr.Accept(this, parameter);
switch (expression.ContainmentType)
{
case ContainmentType.PrefixOf:
return Expression.Call(l, prefixOfMethod, new Expression[] { r });
case ContainmentType.SuffixOf:
return Expression.Call(l, suffixOfMethod, new Expression[] { r });
default:
return Expression.Call(l, containsMethod, new Expression[] { r });
}
}));
}
public ImmutableHashSet <object> VisitZenStringContainmentExpr(ZenStringContainmentExpr expression, Unit parameter)
{
throw new ZenException($"Invalid string type used with Decision Diagram backend.");
}
