public void OpenContext(ConvertedExpression expression, BinaryExpression node)
{
if (!SupportedMethods.Contains((expression.Equality ?? string.Empty).TrimStart(ExpressionType.Not.ToString().ToCharArray())))
return;
_contexts.Add(new SubQueryContext { Target = expression.Target,
ContextKey = node.ToString(),
// ReSharper disable PossibleNullReferenceException
NegateContext = expression.Equality.StartsWith(ExpressionType.Not.ToString())
// ReSharper restore PossibleNullReferenceException
});
}
internal bool SetContext(ConvertedExpression currentExpression)
{
if(!_contexts.Any()) {
return false;
}
currentExpression.Target = _contexts.Last().Target;
//if it starts with dual "NotNot" its a Not inside the Not context, i guess its an equal then ?
if (_contexts.Last().NegateContext && currentExpression.Equality.StartsWith(ExpressionType.Not + ExpressionType.Not.ToString())) {
currentExpression.Equality =
currentExpression.Equality.TrimStart((ExpressionType.Not.ToString() + ExpressionType.Not).ToCharArray());
}
else if (_contexts.Last().NegateContext && !currentExpression.Equality.StartsWith(ExpressionType.Not.ToString())) {
currentExpression.Equality = ExpressionType.Not + currentExpression.Equality;
}
return true;
}