private Expression FindSimilarRight(JoinExpression join, JoinExpression compareTo)
{
if (join == null)
{
return(null);
}
if (join.JoinType == compareTo.JoinType)
{
if (join.Right.NodeType == compareTo.Right.NodeType &&
DbExpressionComparer.AreEqual(join.Right, compareTo.Right))
{
if (join.Condition == compareTo.Condition)
{
return(join.Right);
}
var scope = new ScopedDictionary <TableAlias, TableAlias>(null);
scope.Add(((AliasedExpression)join.Right).Alias, ((AliasedExpression)compareTo.Right).Alias);
if (DbExpressionComparer.AreEqual(null, scope, join.Condition, compareTo.Condition))
{
return(join.Right);
}
}
}
return(FindSimilarRight(join.Left as JoinExpression, compareTo) ??
FindSimilarRight(join.Right as JoinExpression, compareTo));
}
public bool Equals(HashedExpression other)
{
return(this.hashCode == other.hashCode &&
DbExpressionComparer.AreEqual(this.expression, other.expression));
}