protected override Expression VisitBinary(BinaryExpression node)
{
var ignoreAtStart = _ignore;
_ignore = _ignore || node.NodeType == ExpressionType.OrElse;
if (!_ignore)
{
var leftParams = ParameterExtractor.ExtractParameters(node.Left);
var rightParams = ParameterExtractor.ExtractParameters(node.Right);
if ((
(!_isNot && node.NodeType == ExpressionType.Equal) ||
(_isNot && node.NodeType == ExpressionType.NotEqual)
) && AreParametersCorrect(leftParams, rightParams))
{
AddKeysToList(node, leftParams, rightParams);
_expression = _expression == null ? node : Expression.AndAlso(_expression, node);
}
}
var returnVal = base.VisitBinary(node);
if (!ignoreAtStart && _ignore)
{
_ignore = false;
}
return(returnVal);
}
public static HashSet <ParameterExpression> ExtractParameters(Expression expr)
{
var l = new ParameterExtractor();
l.Visit(expr);
return(l._parameters);
}
