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#Region "Microsoft.VisualBasic::db823fc685023f06205b5c43d4ba9f77, Microsoft.VisualBasic.Core\ComponentModel\Ranges\RangeList.vb"
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#End Region
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Imports System.Runtime.CompilerServices
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Imports Microsoft.VisualBasic.ComponentModel.Ranges.Model
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Imports Microsoft.VisualBasic.Language
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Imports Microsoft.VisualBasic.Serialization.JSON
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Namespace ComponentModel.Ranges
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Public Class RangeList(Of T As IComparable, V) : Implements IEnumerable(Of RangeTagValue(Of T, V))
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Dim buffer As New List(Of RangeTagValue(Of T, V))
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Public ReadOnly Iterator Property Values As IEnumerable(Of V)
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Get
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For Each x As RangeTagValue(Of T, V) In Me
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Yield x.Value
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Next
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End Get
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End Property
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Public ReadOnly Iterator Property Keys As IEnumerable(Of Range(Of T))
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Get
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For Each x As RangeTagValue(Of T, V) In Me
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Yield x
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Next
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End Get
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End Property
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Sub New(Optional capacity% = 128)
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If capacity > 0 Then
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buffer = New List(Of RangeTagValue(Of T, V))(capacity)
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Else
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End If
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End Sub
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<MethodImpl(MethodImplOptions.AggressiveInlining)>
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Public Sub Add(range As RangeTagValue(Of T, V))
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Call buffer.Add(range)
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End Sub
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Public Function [Select](x As T) As RangeTagValue(Of T, V)
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Dim LQuery = LinqAPI.DefaultFirst(Of RangeTagValue(Of T, V)) _
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_
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() <= From r As RangeTagValue(Of T, V)
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In Me.AsQueryable
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Where r.IsInside(x)
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Select r
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Return LQuery
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End Function
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Public Function SelectValue(x As T, Optional [throw] As Boolean = True, Optional ByRef success As Boolean = False) As V
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Dim n As RangeTagValue(Of T, V) = [Select](x)
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If n Is Nothing Then
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If [throw] Then
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Throw New DataException($"{x.GetJson} is not in any ranges!")
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Else
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Return Nothing
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End If
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Else
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success = True
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Return n.Value
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End If
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End Function
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Public Function SelectValue(x As T, [default] As Func(Of T, V)) As V
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Dim success As Boolean = False
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Dim v As V = SelectValue(x, [throw]:=False, success:=success)
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If success Then
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Return v
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Else
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Return [default](x)
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End If
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End Function
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Public Iterator Function GetEnumerator() As IEnumerator(Of RangeTagValue(Of T, V)) Implements IEnumerable(Of RangeTagValue(Of T, V)).GetEnumerator
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For Each x In buffer
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Yield x
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Next
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End Function
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Private Iterator Function IEnumerable_GetEnumerator() As IEnumerator Implements IEnumerable.GetEnumerator
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Yield GetEnumerator()
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End Function
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<MethodImpl(MethodImplOptions.AggressiveInlining)>
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Public Shared Widening Operator CType(buffer As RangeTagValue(Of T, V)()) As RangeList(Of T, V)
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Return New RangeList(Of T, V)(-1) With {
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.buffer = buffer.AsList
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}
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End Operator
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End Class
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End Namespace
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