public void TransformExpressions ()
{
var oldInnerSequence = ExpressionHelper.CreateExpression ();
var oldOuterKeySelector = ExpressionHelper.CreateExpression ();
var oldInnerKeySelector = ExpressionHelper.CreateExpression ();
var newInnerSequence = ExpressionHelper.CreateExpression ();
var newOuterKeySelector = ExpressionHelper.CreateExpression ();
var newInnerKeySelector = ExpressionHelper.CreateExpression ();
var clause = new JoinClause ("x", typeof (Cook), oldInnerSequence, oldOuterKeySelector, oldInnerKeySelector);
clause.TransformExpressions (ex =>
{
if (ex == oldInnerSequence)
return newInnerSequence;
else if (ex == oldOuterKeySelector)
return newOuterKeySelector;
else if (ex == oldInnerKeySelector)
return newInnerKeySelector;
else
{
Assert.Fail();
return null;
}
});
Assert.That (clause.InnerSequence, Is.SameAs (newInnerSequence));
Assert.That (clause.OuterKeySelector, Is.SameAs (newOuterKeySelector));
Assert.That (clause.InnerKeySelector, Is.SameAs (newInnerKeySelector));
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
public override void VisitJoinClause(JoinClause joinClause, QueryModel queryModel, GroupJoinClause groupJoinClause)
=> joinClause.TransformExpressions(TransformingVisitor.Visit);
