public override IQueryable <T> VisitOrderby(RiqlParser.OrderbyContext context)
{
var propertyPath = context.propertyPath().GetText();
var ascending = context.K_DESC() == null;
var parameter = Expression.Parameter(typeof(T), "i");
var expressionPath = this._propertyAccessor.ParsePath(parameter, propertyPath);
var keySelector = Expression.Lambda(expressionPath.Expression, parameter);
Expression <Func <IQueryable <T>, Expression <Func <T, object> >, bool, IQueryable <T> > > stub = (a, b, c) => this.AddOrderBy(a, b, c);
var method = ((MethodCallExpression)stub.Body).Method.GetGenericMethodDefinition().MakeGenericMethod(keySelector.ReturnType);
this._current = (IQueryable <T>)method.Invoke(this, new object[] { this._current, keySelector, ascending });
try
{
this._orderingBy = true;
return(base.VisitOrderby(context));
}
finally
{
this._orderingBy = true;
}
}
/// <summary>
/// Visit a parse tree produced by <see cref="RiqlParser.orderby"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitOrderby([NotNull] RiqlParser.OrderbyContext context)
{
return(VisitChildren(context));
}
