protected override Expression VisitMemberExpression(MemberExpression expression)
{
_queryModelVisitor
.BindMemberExpression(
expression,
(property, querySource, selectExpression)
=> selectExpression.AddToProjection(property, querySource));
return(base.VisitMemberExpression(expression));
}
protected override Expression VisitMemberExpression(MemberExpression expression)
{
_queryModelVisitor
.BindMemberExpression(
expression,
(property, selectExpression)
=> selectExpression.AddToOrderBy(property, _ordering.OrderingDirection));
// TODO: Remove expressions when fully server eval'd
return(base.VisitMemberExpression(expression));
}
private Expression BindOperand(Expression expression)
{
var memberExpression = expression as MemberExpression;
if (memberExpression == null)
{
return(expression as ConstantExpression);
}
return(_queryModelVisitor
.BindMemberExpression(
memberExpression,
_querySource,
(property, _) => new PropertyAccessExpression(property)));
}
protected override Expression VisitMemberExpression(MemberExpression memberExpression)
{
var columnExpression
= _queryModelVisitor
.BindMemberExpression(
memberExpression,
(property, querySource, selectExpression)
=> new ColumnExpression(
property,
selectExpression.FindTableForQuerySource(querySource).Alias));
if (columnExpression != null)
{
return(columnExpression);
}
_requiresClientEval = true;
return(null);
}
protected override Expression VisitMemberExpression(MemberExpression expression)
{
var newExpression = VisitExpression(expression.Expression);
if (newExpression != expression.Expression)
{
return(newExpression.Type == typeof(IValueReader)
? (Expression)_queryModelVisitor.BindMemberExpression(expression,
(property, selectExpression) =>
Expression.Call(
newExpression,
_readValueMethodInfo.MakeGenericMethod(expression.Type),
new Expression[]
{
Expression.Constant(selectExpression.GetProjectionIndex(property))
}))
: Expression.MakeMemberAccess(newExpression, expression.Member));
}
return(expression);
}
protected override Expression VisitMemberExpression(MemberExpression expression)
{
var newExpression = VisitExpression(expression.Expression);
if (newExpression != expression.Expression)
{
return(newExpression.Type == typeof(IValueReader)
? (Expression)_queryModelVisitor.BindMemberExpression(expression,
(property, querySource, selectExpression) =>
{
var projectionIndex = selectExpression.GetProjectionIndex(property, querySource);
Contract.Assert(projectionIndex > -1);
return Expression.Call(
newExpression,
_readValueMethodInfo.MakeGenericMethod(expression.Type),
Expression.Constant(projectionIndex));
})
: Expression.MakeMemberAccess(newExpression, expression.Member));
}
return(expression);
}