protected override IEnumerable <LessNode> EvaluateCore(EvaluationContext context)
{
bool important = false;
IEnumerable <Expression> EvaluateExpressions()
{
foreach (var expression in Values)
{
foreach (var evaluatedExpression in expression.Evaluate(context).Cast <Expression>())
{
if (evaluatedExpression is ImportantExpression impExp)
{
important = true;
yield return(impExp.Value);
}
else
{
yield return(evaluatedExpression);
}
}
}
}
// Materializing this enumerable also sets important to true when applicable
var expressions = EvaluateExpressions().ToList();
var list = new ExpressionList(expressions, Separator);
yield return(important ? (LessNode) new ImportantExpression(list) : list);
}
public MediaIdentifierQuery(MediaQueryModifier modifier, ExpressionList identifier, bool parens) : base(modifier)
{
this.identifier = identifier;
this.parens = parens;
}
protected bool Equals(ExpressionList other)
{
return(Values.SequenceEqual(other.Values));
}