IEnumerable <TResult> FlatJoinCore <TInner1, TInner2, TInner3, TInner4, TJoinKey, TResult>(IMemoryFinder <TJoinKey, TInner1> innerMemory1, IMemoryFinder <TJoinKey, TInner2> innerMemory2, IMemoryFinder <TJoinKey, TInner3> innerMemory3, IMemoryFinder <TJoinKey, TInner4> innerMemory4, Func <TOuter, TJoinKey> keySelector, Func6 <TOuter, TInner1, TInner2, TInner3, TInner4, TResult> resultSelector, bool defaultIfEmpty)
{
foreach (var outer in outerList)
{
var key = keySelector(outer);
var inner1Many = DefaultIfEmpty(innerMemory1.FindMany(key), defaultIfEmpty);
var inner2Many = DefaultIfEmpty(innerMemory2.FindMany(key), defaultIfEmpty);
var inner3Many = DefaultIfEmpty(innerMemory3.FindMany(key), defaultIfEmpty);
var inner4Many = DefaultIfEmpty(innerMemory4.FindMany(key), defaultIfEmpty);
foreach (var inner1 in inner1Many)
{
foreach (var inner2 in inner2Many)
{
foreach (var inner3 in inner3Many)
{
foreach (var inner4 in inner4Many)
{
yield return(resultSelector(outer, inner1, inner2, inner3, inner4));
}
}
}
}
}
}
IEnumerable <TResult> GroupJoinCore <TInner, TJoinKey, TResult>(IMemoryFinder <TJoinKey, TInner> innerMemory, Func <TOuter, TJoinKey> keySelector, Func <TOuter, RangeView <TInner>, TResult> resultSelector)
{
foreach (var outer in outerList)
{
var inner = innerMemory.FindMany(keySelector(outer));
yield return(resultSelector(outer, inner));
}
}
IEnumerable <TResult> GroupJoinCore <TInner1, TInner2, TJoinKey, TResult>(IMemoryFinder <TJoinKey, TInner1> innerMemory1, IMemoryFinder <TJoinKey, TInner2> innerMemory2, Func <TOuter, TJoinKey> keySelector, Func <TOuter, RangeView <TInner1>, RangeView <TInner2>, TResult> resultSelector)
{
foreach (var outer in outerList)
{
var key = keySelector(outer);
var inner1 = innerMemory1.FindMany(key);
var inner2 = innerMemory2.FindMany(key);
yield return(resultSelector(outer, inner1, inner2));
}
}
IEnumerable <TResult> FlatJoinCore <TInner, TJoinKey, TResult>(IMemoryFinder <TJoinKey, TInner> innerMemory1, Func <TOuter, TJoinKey> keySelector, Func <TOuter, TInner, TResult> resultSelector, bool defaultIfEmpty)
{
foreach (var outer in outerList)
{
var key = keySelector(outer);
var inner1Many = DefaultIfEmpty(innerMemory1.FindMany(key), defaultIfEmpty);
foreach (var inner1 in inner1Many)
{
yield return(resultSelector(outer, inner1));
}
}
}