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VERSION 1.0 CLASS

BEGIN

MultiUse = -1 'True

Persistable = 0 'NotPersistable

DataBindingBehavior = 0 'vbNone

DataSourceBehavior = 0 'vbNone

MTSTransactionMode = 0 'NotAnMTSObject

END

Attribute VB_Name = "clsTrickHashTable"

Attribute VB_GlobalNameSpace = False

Attribute VB_Creatable = True

Attribute VB_PredeclaredId = False

Attribute VB_Exposed = False

' clsTrickHashTable.cls - класс хеш-таблицы

' © Кривоус Анатолий Анатольевич (The trick), 2014

Option Explicit

Public Enum CompareMethod ' Метод сравнения

BinaryCompare

TextCompare

End Enum

Public Enum EnumMethod ' Метод перечисления для For each

ENUM_BY_KEY

ENUM_BY_VALUE

End Enum

Private Declare Function SetEnvironmentVariable Lib "kernel32" Alias "SetEnvironmentVariableW" (ByVal lpName As Long, ByVal lpValue As Long) As Long

Private Declare Function GetEnvironmentVariable Lib "kernel32" Alias "GetEnvironmentVariableW" (ByVal lpName As Long, ByVal lpBuffer As Long, ByVal nSize As Long) As Long

Private Declare Function VirtualAlloc Lib "kernel32" (lpAddress As Any, ByVal dwSize As Long, ByVal flAllocationType As Long, ByVal flProtect As Long) As Long

Private Declare Function VirtualFree Lib "kernel32" (lpAddress As Any, ByVal dwSize As Long, ByVal dwFreeType As Long) As Long

Private Declare Function HeapAlloc Lib "kernel32" (ByVal hHeap As Long, ByVal dwFlags As Long, ByVal dwBytes As Long) As Long

Private Declare Function GetProcessHeap Lib "kernel32" () As Long

Private Declare Function GetMem8 Lib "msvbvm60" (Src As Any, Dst As Any) As Long

Private Declare Function GetMem4 Lib "msvbvm60" (Src As Any, Dst As Any) As Long

Private Declare Function GetMem2 Lib "msvbvm60" (Src As Any, Dst As Any) As Long

Private Declare Function GetMem1 Lib "msvbvm60" (Src As Any, Dst As Any) As Long

Private Declare Function GetModuleHandle Lib "kernel32" Alias "GetModuleHandleW" (ByVal lpModuleName As Long) As Long

Private Declare Function GetProcAddress Lib "kernel32" (ByVal hModule As Long, ByVal lpProcName As String) As Long

Private Declare Function memcpy Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal length As Long) As Long

Private Declare Function VarCmp Lib "oleaut32" (pvarLeft As Any, pvarRight As Any, ByVal lcid As Long, ByVal dwFlags As Long) As Long

Private Declare Function VariantCopy Lib "oleaut32" (pvargDest As Any, pvargSrc As Any) As Long

Private Declare Function VariantCopyInd Lib "oleaut32" (pvarDest As Any, pvargSrc As Any) As Long

Private Declare Function LCMapString Lib "kernel32" Alias "LCMapStringW" (ByVal Locale As Long, ByVal dwMapFlags As Long, lpSrcStr As Any, ByVal cchSrc As Long, lpDestStr As Any, ByVal cchDest As Long) As Long

Private Declare Function GetUserDefaultLCID Lib "kernel32" () As Long

Private Declare Function VarR4FromUI1 Lib "oleaut32" (value As Any, R4 As Any) As Long

Private Declare Function VarR4FromI2 Lib "oleaut32" (value As Any, R4 As Any) As Long

Private Declare Function VarR4FromI4 Lib "oleaut32" (value As Any, R4 As Any) As Long

Private Const LCMAP_LOWERCASE As Long = &H100

Private Const PAGE_EXECUTE_READWRITE As Long = &H40&

Private Const MEM_COMMIT As Long = &H1000&

Private Const MEM_RESERVE As Long = &H2000&

Private Const MEM_RELEASE As Long = &H8000&

Private Const HEAP_NO_SERIALIZE As Long = &H1

Private Const GRANULARITY As Long = &H20

Private Const HASH_SIZE As Long = 2999

Private Type tPointer ' Индекс в таблице объектов

hash As Integer ' Хэш

Index As Integer ' Индекс

End Type

Private Type tElement ' Колонка хэш таблицы

Key As Variant ' Ключ

value As Variant ' Значение

Next As tPointer ' Индекс следующего элемента

Prev As tPointer ' Индекс предыдущего элемента

End Type

Private Type tItem ' Строка хэш таблицы

ElementsCount As Long ' Количество коллизий+1

Elements() As tElement ' Элементы

End Type

Private Type enumObject ' Объект-перечислитель

vTablePtr As Long ' Указатель на интерфейс IEnumVariant

Counter As Long ' Счетчик ссылок

Pointer As tPointer ' Индекс на текущий элемент

DataPtr As Long ' Указатель на List

First As tPointer ' Индекс на первый элемент

OffsetVariant As Long ' Смещение перечисляемой переменной (key/value)

End Type

Private List() As tItem ' Таблица

Private mEnumMode As EnumMethod ' Текущий режим перечисления

Private mCount As Long ' Кол-во элементов

Private mCompareMode As VbCompareMethod ' Режим сравнения ключей

Private First As tPointer ' Индекс первого элемента

Private Last As tPointer ' Индекс последнего элемента

Private locbuf() As Integer ' Буфер текстовой строки

Private lpAsm As Long

Private lcid As Long

Private decMin As Variant

Private decMax As Variant

' // Получить перечислитель

Public Property Get NewEnum() As IUnknown

Attribute NewEnum.VB_UserMemId = -4

Attribute NewEnum.VB_MemberFlags = "40"

Dim enumObject As Long

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VERSION 1.0 CLASS
BEGIN
  MultiUse = -1  'True
  Persistable = 0  'NotPersistable
  DataBindingBehavior = 0  'vbNone
  DataSourceBehavior  = 0  'vbNone
  MTSTransactionMode  = 0  'NotAnMTSObject
END
Attribute VB_Name = "clsTrickHashTable"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
' clsTrickHashTable.cls  - класс хеш-таблицы
' © Кривоус Анатолий Анатольевич (The trick), 2014

Option Explicit

Public Enum CompareMethod   ' Метод сравнения
    BinaryCompare
    TextCompare
End Enum

Public Enum EnumMethod      ' Метод перечисления для For each
    ENUM_BY_KEY
    ENUM_BY_VALUE
End Enum

Private Declare Function SetEnvironmentVariable Lib "kernel32" Alias "SetEnvironmentVariableW" (ByVal lpName As Long, ByVal lpValue As Long) As Long
Private Declare Function GetEnvironmentVariable Lib "kernel32" Alias "GetEnvironmentVariableW" (ByVal lpName As Long, ByVal lpBuffer As Long, ByVal nSize As Long) As Long
Private Declare Function VirtualAlloc Lib "kernel32" (lpAddress As Any, ByVal dwSize As Long, ByVal flAllocationType As Long, ByVal flProtect As Long) As Long
Private Declare Function VirtualFree Lib "kernel32" (lpAddress As Any, ByVal dwSize As Long, ByVal dwFreeType As Long) As Long
Private Declare Function HeapAlloc Lib "kernel32" (ByVal hHeap As Long, ByVal dwFlags As Long, ByVal dwBytes As Long) As Long
Private Declare Function GetProcessHeap Lib "kernel32" () As Long
Private Declare Function GetMem8 Lib "msvbvm60" (Src As Any, Dst As Any) As Long
Private Declare Function GetMem4 Lib "msvbvm60" (Src As Any, Dst As Any) As Long
Private Declare Function GetMem2 Lib "msvbvm60" (Src As Any, Dst As Any) As Long
Private Declare Function GetMem1 Lib "msvbvm60" (Src As Any, Dst As Any) As Long
Private Declare Function GetModuleHandle Lib "kernel32" Alias "GetModuleHandleW" (ByVal lpModuleName As Long) As Long
Private Declare Function GetProcAddress Lib "kernel32" (ByVal hModule As Long, ByVal lpProcName As String) As Long
Private Declare Function memcpy Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal length As Long) As Long
Private Declare Function VarCmp Lib "oleaut32" (pvarLeft As Any, pvarRight As Any, ByVal lcid As Long, ByVal dwFlags As Long) As Long
Private Declare Function VariantCopy Lib "oleaut32" (pvargDest As Any, pvargSrc As Any) As Long
Private Declare Function VariantCopyInd Lib "oleaut32" (pvarDest As Any, pvargSrc As Any) As Long
Private Declare Function LCMapString Lib "kernel32" Alias "LCMapStringW" (ByVal Locale As Long, ByVal dwMapFlags As Long, lpSrcStr As Any, ByVal cchSrc As Long, lpDestStr As Any, ByVal cchDest As Long) As Long
Private Declare Function GetUserDefaultLCID Lib "kernel32" () As Long
Private Declare Function VarR4FromUI1 Lib "oleaut32" (value As Any, R4 As Any) As Long
Private Declare Function VarR4FromI2 Lib "oleaut32" (value As Any, R4 As Any) As Long
Private Declare Function VarR4FromI4 Lib "oleaut32" (value As Any, R4 As Any) As Long

Private Const LCMAP_LOWERCASE           As Long = &H100
Private Const PAGE_EXECUTE_READWRITE    As Long = &H40&
Private Const MEM_COMMIT                As Long = &H1000&
Private Const MEM_RESERVE               As Long = &H2000&
Private Const MEM_RELEASE               As Long = &H8000&
Private Const HEAP_NO_SERIALIZE         As Long = &H1
Private Const GRANULARITY               As Long = &H20
Private Const HASH_SIZE                 As Long = 2999

Private Type tPointer                                                           ' Индекс в таблице объектов
    hash            As Integer                                                  ' Хэш
    Index           As Integer                                                  ' Индекс
End Type
Private Type tElement                                                           ' Колонка хэш таблицы
    Key             As Variant                                                  ' Ключ
    value           As Variant                                                  ' Значение
    Next            As tPointer                                                 ' Индекс следующего элемента
    Prev            As tPointer                                                 ' Индекс предыдущего элемента
End Type
Private Type tItem                                                              ' Строка хэш таблицы
    ElementsCount   As Long                                                     ' Количество коллизий+1
    Elements()      As tElement                                                 ' Элементы
End Type
Private Type enumObject                                                         ' Объект-перечислитель
    vTablePtr       As Long                                                     ' Указатель на интерфейс IEnumVariant
    Counter         As Long                                                     ' Счетчик ссылок
    Pointer         As tPointer                                                 ' Индекс на текущий элемент
    DataPtr         As Long                                                     ' Указатель на List
    First           As tPointer                                                 ' Индекс на первый элемент
    OffsetVariant   As Long                                                     ' Смещение перечисляемой переменной (key/value)
End Type

Private List()          As tItem                                                ' Таблица
Private mEnumMode       As EnumMethod                                           ' Текущий режим перечисления
Private mCount          As Long                                                 ' Кол-во элементов
Private mCompareMode    As VbCompareMethod                                      ' Режим сравнения ключей
Private First           As tPointer                                             ' Индекс первого элемента
Private Last            As tPointer                                             ' Индекс последнего элемента
Private locbuf()        As Integer                                              ' Буфер текстовой строки
Private lpAsm           As Long
Private lcid            As Long
Private decMin          As Variant
Private decMax          As Variant

' // Получить перечислитель

Public Property Get NewEnum() As IUnknown
Attribute NewEnum.VB_UserMemId = -4
Attribute NewEnum.VB_MemberFlags = "40"
    Dim enumObject  As Long
    
    enumObject = CreateEnumObject()
    If enumObject = 0 Then Exit Function
    GetMem4 enumObject, ByVal NewEnum
    
End Property

' // Получает/Устанавливает режим перечислителя
Public Property Get EnumMode() As EnumMethod
Attribute EnumMode.VB_Description = "Определяет режим сравнения в циклах For Each."
    EnumMode = mEnumMode
End Property
Public Property Let EnumMode(ByVal value As EnumMethod)
    mEnumMode = value
End Property

' // Получает/Устанавливает режим сравнения ключей
Public Property Get CompareMode() As CompareMethod
Attribute CompareMode.VB_Description = "Установить или получить метод сравнения строк.\n"
    CompareMode = mCompareMode
End Property
Public Property Let CompareMode(ByVal value As CompareMethod)
    If mCount Then Err.Raise 5: Exit Property    ' Только когда элементов нет
    mCompareMode = value
End Property

' // Добавить элемент
Public Sub Add(Key As Variant, value As Variant)
Attribute Add.VB_Description = "Добавить в таблицу новый ключ и элемент.\n"
    Dim pt As tPointer
    
    If Not GetFromKey(Key, pt) Then
        Err.Raise 5
        Exit Sub
    End If
    
    If pt.Index <> -1 Then
        Err.Raise 457
        Exit Sub
    End If
    
    pt.Index = List(pt.hash).ElementsCount
    
    Add_ pt, Key, value
    
End Sub

' // Возвратить элемент с заданным ключом
Public Property Get Item(Key As Variant) As Variant
Attribute Item.VB_Description = "Задать или извлечь элемент по заданному ключу\n"
Attribute Item.VB_UserMemId = 0
    Dim pt As tPointer

If Not GetFromKey(Key, pt) Then
        Err.Raise 5
        Exit Property
    End If
    
    If pt.Index = -1 Then Err.Raise 5: Exit Property
    VariantCopy Item, List(pt.hash).Elements(pt.Index).value
    
End Property

' // Присвоить значение элементу с заданным ключом
Public Property Let Item(Key As Variant, value As Variant)
    Dim pt As tPointer
    
    If Not GetFromKey(Key, pt) Then
        Err.Raise 5
        Exit Property
    End If
    
    If pt.Index = -1 Then Err.Raise 5: Exit Property
    List(pt.hash).Elements(pt.Index).value = value
    
End Property

' // Присвоить объектное значение элементу с заданным ключом
Public Property Set Item(Key As Variant, value As Variant)
    Dim pt As tPointer
    
    If Not GetFromKey(Key, pt) Then
        Err.Raise 5
        Exit Property
    End If
    
    If pt.Index = -1 Then Err.Raise 5: Exit Property
    Set List(pt.hash).Elements(pt.Index).value = value
    
End Property

' // Задать новый ключ
Public Property Let Key(Key As Variant, NewKey As Variant)
Attribute Key.VB_Description = "Сменить ключ на другой ключ.\n"
    Key_ Key, NewKey
End Property

' / Задать новый объектный ключ
Public Property Set Key(Key As Variant, NewKey As Variant)
    Key_ Key, NewKey
End Property

' // Возвращает количество элементов
Public Property Get Count() As Long
Attribute Count.VB_Description = "Получить количество элементов в таблице.\n"
    Count = mCount
End Property

' // Существует ли элемент с заданным ключом
Public Function Exists(Key As Variant) As Boolean
Attribute Exists.VB_Description = "Определить, имеется ли в таблице заданный ключ.\n"
    Dim pt As tPointer
    
    If Not GetFromKey(Key, pt) Then
        Err.Raise 5
        Exit Function
    End If
    
    Exists = pt.Index <> -1
End Function

' // Удалить элемент по ключу
Public Sub Remove(Key As Variant)
Attribute Remove.VB_Description = "Удалить ключ и связанный с ним элемент из теблицы.\n"
    Dim pt  As tPointer
    Dim ln  As tPointer
    Dim lp  As tPointer
    Dim p   As tPointer
    Dim l   As Long
    
    If Not GetFromKey(Key, pt) Then
        Err.Raise 5
        Exit Sub
    End If
    
    If pt.Index = -1 Then
        Err.Raise 5
        Exit Sub
    End If
    
    Remove_ pt
    
End Sub

' // Удалить все элементы
Public Sub RemoveAll()
Attribute RemoveAll.VB_Description = "Очистить таблицу."
    Call Class_Initialize
End Sub

' // Получить список элементов
Public Function Items() As Variant
Attribute Items.VB_Description = "Получить массив всех элементов теблицы.\n"
    Dim pt      As tPointer
    Dim i       As Long
    Dim ret()   As Variant
    
    If mCount = 0 Then Exit Function
    pt = First
    ReDim ret(mCount - 1)
    
    Do
    
        VariantCopy ret(i), List(pt.hash).Elements(pt.Index).value
        pt = List(pt.hash).Elements(pt.Index).Next
        i = i + 1
        
    Loop While i < mCount
    
    Items = ret
    
End Function

' // Получить список ключей
Public Function Keys() As Variant()
Attribute Keys.VB_Description = "Получить массив всех ключей словаря.\n"
    Dim pt As tPointer, i As Long, ret() As Variant
    
    If mCount = 0 Then Exit Function
    
    pt = First
    ReDim ret(mCount - 1)
    
    Do
    
        VariantCopy ret(i), List(pt.hash).Elements(pt.Index).Key
        pt = List(pt.hash).Elements(pt.Index).Next
        i = i + 1
        
    Loop While i < mCount
    
    Keys = ret
End Function

' // Вычислить хеш
Public Function HashValue(value As Variant) As Long
Attribute HashValue.VB_Description = "Получит значение хеш-функции от заданного ключа."
    Dim hash    As Long
    
    hash = CalcHash(value)
    
    If hash < 0 Then
        Err.Raise 5
        Exit Function
    End If
    
    HashValue = hash
    
End Function

' //

Private Sub Add_(pt As tPointer, Key As Variant, value As Variant)

If pt.Index Then
        If pt.Index > UBound(List(pt.hash).Elements) Then
            ReDim Preserve List(pt.hash).Elements(UBound(List(pt.hash).Elements) + GRANULARITY)
        End If
    Else
        ReDim Preserve List(pt.hash).Elements(GRANULARITY - 1)
    End If
    
    List(pt.hash).ElementsCount = pt.Index + 1
    
    VariantCopyInd List(pt.hash).Elements(pt.Index).value, value
    VariantCopyInd List(pt.hash).Elements(pt.Index).Key, Key
    
    If Last.hash >= 0 Then
        List(Last.hash).Elements(Last.Index).Next = pt
        List(pt.hash).Elements(pt.Index).Prev = Last
    Else
        List(pt.hash).Elements(pt.Index).Prev.hash = -1
        List(pt.hash).Elements(pt.Index).Prev.Index = -1
        First = pt
    End If
    
    List(pt.hash).Elements(pt.Index).Next.hash = -1
    List(pt.hash).Elements(pt.Index).Next.Index = -1
    
    Last = pt
    mCount = mCount + 1
    
End Sub

Private Sub Remove_(pt As tPointer)
    Dim ln  As tPointer
    Dim lp  As tPointer
    Dim p   As tPointer
    Dim l   As Long

lp = List(pt.hash).Elements(pt.Index).Prev
    ln = List(pt.hash).Elements(pt.Index).Next
    
    For l = pt.Index To List(pt.hash).ElementsCount - 2
    
        List(pt.hash).Elements(l) = List(pt.hash).Elements(l + 1)
        
        ' Правим ссылки на элемент
        p = List(pt.hash).Elements(l).Prev
        
        If p.Index >= 0 Then List(p.hash).Elements(p.Index).Next.Index = List(p.hash).Elements(p.Index).Next.Index - 1
            
        p = List(pt.hash).Elements(l).Next
        
        If p.Index >= 0 Then List(p.hash).Elements(p.Index).Prev.Index = List(p.hash).Elements(p.Index).Prev.Index - 1
        
    Next
    
    l = List(pt.hash).ElementsCount - 1: List(pt.hash).ElementsCount = l
    
    If l Then
        If (l Mod GRANULARITY) = 0 Then ReDim Preserve List(pt.hash).Elements(l - 1)
    Else
        Erase List(pt.hash).Elements()
    End If
    
    If lp.Index >= 0 Then List(lp.hash).Elements(lp.Index).Next = ln
    If ln.Index >= 0 Then List(ln.hash).Elements(ln.Index).Prev = lp
    If lp.Index = -1 Then First = ln
    If ln.Index = -1 Then Last = lp
    
    mCount = mCount - 1
    
End Sub

Private Sub Key_(Key As Variant, NewKey As Variant)
    Dim pt1     As tPointer
    Dim pt2     As tPointer
    Dim value   As Variant
    
    If Not GetFromKey(Key, pt1) Then
        Err.Raise 5
        Exit Sub
    End If
    
    If pt1.Index = -1 Then Err.Raise 5: Exit Sub
    
    If Not GetFromKey(NewKey, pt2) Then
        Err.Raise 5
        Exit Sub
    End If
    
    If pt2.Index <> -1 Then Err.Raise 457: Exit Sub

VariantCopy value, List(pt1.hash).Elements(pt1.Index).value
    Remove_ pt1
    pt2.Index = List(pt2.hash).ElementsCount
    Add_ pt2, NewKey, value
    
End Sub

Private Function GetFromKey(Key As Variant, Pointer As tPointer) As Boolean
    Dim i       As Long
    Dim hash    As Long
    Dim typ     As Integer
    Dim keyi    As Variant
    Dim lPtr    As Long
    
    hash = CalcHash(Key)
    
    If hash >= 0 Then
    
        Pointer.hash = hash
        GetFromKey = True
        
        VariantCopyInd keyi, Key
        lPtr = VarPtr(keyi)
        
        GetMem2 ByVal lPtr, typ
        
        Select Case typ
        Case vbString
        
            For i = 0 To List(hash).ElementsCount - 1
                
                If VarCmp(List(hash).Elements(i).Key, keyi, lcid, mCompareMode) = 1 Then
                    Pointer.Index = i
                    Exit Function
                End If
                
            Next
            
        Case vbObject, vbDataObject
            
            GetMem4 ByVal lPtr + 8, lPtr
            
            For i = 0 To List(hash).ElementsCount - 1
                
                GetMem2 List(hash).Elements(i).Key, typ
                
                If typ = vbObject Or typ = vbDataObject Then
                    
                    If List(hash).Elements(i).Key Is keyi Then
                    
                        Pointer.Index = i
                        Exit Function
                        
                    End If
                    
                End If

Next
        
        Case vbNull
            
            For i = 0 To List(hash).ElementsCount - 1

If IsNull(List(hash).Elements(i).Key) Then
                
                    Pointer.Index = i
                    Exit Function
                    
                End If
                    
            Next
            
        Case vbEmpty
            
            For i = 0 To List(hash).ElementsCount - 1

If IsEmpty(List(hash).Elements(i).Key) Then
                
                    Pointer.Index = i
                    Exit Function
                    
                End If
                    
            Next
            
        Case Else
        
            For i = 0 To List(hash).ElementsCount - 1
                
                If List(hash).Elements(i).Key = keyi Then
                    Pointer.Index = i
                    Exit Function
                End If
                
            Next
            
        End Select
                
    End If
    
    Pointer.Index = -1
    
End Function

Private Function CalcHash(value As Variant) As Long
    Dim i       As Long
    Dim typ     As Integer
    Dim ptr     As Long
    Dim length  As Long
    Dim dbl     As Double
    Dim cur     As Currency
    Dim sgl     As Single
    
    ptr = VarPtr(value)
    GetMem2 ByVal ptr, typ
    
    Do While typ = &H400C
        
        GetMem2 ByVal ptr + 8, ptr
        GetMem2 ByVal ptr, typ
        
    Loop
    
    ptr = ptr + 8
    
    If typ And &H4000 Then
        
        GetMem4 ByVal ptr, ptr
        typ = typ And &HBFFF&
        
    End If
    
    Select Case typ
    Case vbString
        
        GetMem4 ByVal ptr, ptr
        GetMem4 ByVal ptr - 4, length
        length = length \ 2
        
        If length >= UBound(locbuf) Then
            ReDim locbuf(length + 1)
        End If
        
        If mCompareMode = vbTextCompare Then
        
            LCMapString lcid, LCMAP_LOWERCASE, ByVal ptr, length, locbuf(0), length
        Else
        
            memcpy locbuf(0), ByVal ptr, length * 2
        End If
        
        For i = 0 To length - 1
            CalcHash = (CalcHash * 37 + locbuf(i) And &HFFFF&)
        Next
        
    Case vbByte
    
        GetMem1 ByVal ptr, CalcHash
        VarR4FromUI1 ByVal CalcHash, CalcHash
        
    Case vbInteger, vbBoolean

GetMem2 ByVal ptr, CalcHash
        VarR4FromI2 ByVal CalcHash, CalcHash
        
    Case vbLong, vbError
        
        GetMem4 ByVal ptr, i
        If i > 9999999 Or i < -9999999 Then
            CalcHash = 0
        Else
            VarR4FromI4 ByVal CalcHash, CalcHash
        End If
        
    Case vbSingle
    
        GetMem8 ByVal ptr, sgl
        If sgl > 9999999 Or sgl < -9999999 Then
            CalcHash = 0
        Else
            GetMem4 sgl, CalcHash
        End If
        
    Case vbObject, vbDataObject
    
        GetMem4 ByVal ptr, CalcHash
        
    Case vbDouble, vbDate
        
        GetMem8 ByVal ptr, dbl
        If dbl > 9999999 Or dbl < -9999999 Then
            CalcHash = 0
        Else
            GetMem4 CSng(dbl), CalcHash
        End If
        
    Case vbCurrency
        
        GetMem8 ByVal ptr, cur
        If dbl > 9999999@ Or dbl < -9999999@ Then
            CalcHash = 0
        Else
            GetMem4 CSng(cur), CalcHash
        End If
        
    Case vbDecimal
        
        If value > decMax Or value < decMin Then
            CalcHash = 0
        Else
            GetMem4 CSng(value), CalcHash
        End If
        
    Case vbNull, vbEmpty
    
        CalcHash = 0
        
    Case Else
    
        CalcHash = -1
        Exit Function
        
    End Select
    
    CalcHash = (CalcHash And &H7FFFFFFF) Mod HASH_SIZE
    
End Function

Private Function CreateEnumObject() As Long
    
    If lpAsm = 0 Then

lpAsm = GetEnumInterface()
        If lpAsm = 0 Then Exit Function
        
    End If
    
    Dim newObject   As enumObject
    Dim lpObject    As Long
    
    newObject.Counter = 1
    newObject.DataPtr = VarPtr(List(0))
    newObject.vTablePtr = lpAsm + &HEC
    newObject.Pointer = First
    newObject.First = First
    newObject.OffsetVariant = IIf(mEnumMode = ENUM_BY_KEY, 0, &H10)
    
    lpObject = HeapAlloc(GetProcessHeap(), HEAP_NO_SERIALIZE, Len(newObject))
    memcpy ByVal lpObject, newObject, Len(newObject)
    
    CreateEnumObject = lpObject
    
End Function

Private Function GetEnumInterface() As Long
    Dim sHex    As String
    
    sHex = Space(&H8)
    
    If GetEnvironmentVariable(StrPtr("TrickHashEnumerationInterface"), StrPtr(sHex), Len(sHex) + 1) = 0 Then
        
        GetEnumInterface = CreateAsm()
        
    Else
    
        GetEnumInterface = CLng("&H" & sHex)
        
    End If
    
End Function

Private Function CreateAsm() As Long
    Dim lpAddr  As Long
    Dim dat(58) As Long
    Dim hLib    As Long
    Dim lpProc  As Long
    
    dat(0) = &H424448B:     dat(1) = &H8B0440FF:    dat(2) = &H890C244C:    dat(3) = &HC2C03101:    dat(4) = &H448B000C:
    dat(5) = &H40FF0424:    dat(6) = &H4408B04:     dat(7) = &H8B0004C2:    dat(8) = &HFF042444:    dat(9) = &H6740448:
    dat(10) = &HC204408B:   dat(11) = &H6A500004:   dat(12) = &H5642E801:   dat(13) = &HE8501234:   dat(14) = &H1234563C:
    dat(15) = &H4C2C031:    dat(16) = &H56575300:   dat(17) = &H1024748B:   dat(18) = &H14245C8B:   dat(19) = &H18247C8B:
    dat(20) = &H846BF0F:    dat(21) = &H482F7440:   dat(22) = &H8B0C4E8B:   dat(23) = &HF04C14C:    dat(24) = &H660A46B7:
    dat(25) = &HF28C06B:    dat(26) = &H498BC0B7:   dat(27) = &H10C8D0C:    dat(28) = &H320418B:    dat(29) = &H4689144E:
    dat(30) = &HE8575108:   dat(31) = &H123455F8:   dat(32) = &H4B10C783:   dat(33) = &HDB85CA75:   dat(34) = &HFC2950F:
    dat(35) = &H7C8BF2B6:   dat(36) = &HFF851C24:   dat(37) = &H448B0874:   dat(38) = &HD8291424:   dat(39) = &HF0890789:
    dat(40) = &HC25B5F5E:   dat(41) = &H548B0010:   dat(42) = &H428B0424:   dat(43) = &HC528B08:    dat(44) = &H1F744066:
    dat(45) = &HB70F4866:   dat(46) = &HCA4C8BC8:   dat(47) = &H10E8C104:   dat(48) = &H28C06B66:   dat(49) = &H8B0C498B:
    dat(50) = &HFF200144:   dat(51) = &H7508244C:   dat(52) = &H85D231DF:   dat(53) = &HC2950FD2:   dat(54) = &H8C2D089:
    dat(55) = &H24448B00:   dat(56) = &H10508B04:   dat(57) = &H31085089:   dat(58) = &H4C2C0

lpAddr = VirtualAlloc(ByVal 0&, &H104, MEM_COMMIT Or MEM_RESERVE, PAGE_EXECUTE_READWRITE)
    If lpAddr = 0 Then Exit Function
    
    memcpy ByVal lpAddr, dat(0), &HEC
    
    hLib = GetModuleHandle(StrPtr("kernel32"))
    If hLib = 0 Then GoTo Clear
    
    lpProc = GetProcAddress(hLib, "GetProcessHeap")
    If lpProc = 0 Then GoTo Clear
    
    GetMem4 lpProc - (lpAddr + &H32 + 4), ByVal lpAddr + &H32
    
    lpProc = GetProcAddress(hLib, "HeapFree")
    If lpProc = 0 Then GoTo Clear
    
    GetMem4 lpProc - (lpAddr + &H38 + 4), ByVal lpAddr + &H38
    
    hLib = GetModuleHandle(StrPtr("oleaut32"))
    If hLib = 0 Then GoTo Clear
    
    lpProc = GetProcAddress(hLib, "VariantCopy")
    If lpProc = 0 Then GoTo Clear
    
    GetMem4 lpProc - (lpAddr + &H7C + 4), ByVal lpAddr + &H7C
    
    GetMem4 lpAddr, ByVal lpAddr + &HEC         ' IUnknown::QueryInterface
    GetMem4 lpAddr + &H12, ByVal lpAddr + &HF0  ' IUnknown::AddRef
    GetMem4 lpAddr + &H1F, ByVal lpAddr + &HF4  ' IUnknown::Release
    GetMem4 lpAddr + &H41, ByVal lpAddr + &HF8  ' IEnumVariant::Next
    GetMem4 lpAddr + &HA6, ByVal lpAddr + &HFC  ' IEnumVariant::Skip
    GetMem4 lpAddr + &HDD, ByVal lpAddr + &H100 ' IEnumVariant::Reset
    
    If SetEnvironmentVariable(StrPtr("TrickHashEnumerationInterface"), StrPtr(Hex(lpAddr))) = 0 Then GoTo Clear
    
    CreateAsm = lpAddr
    
    Exit Function
    
Clear:
    
    VirtualFree ByVal lpAddr, &H104, MEM_RELEASE
    
End Function

Private Sub Class_Initialize()

ReDim List(HASH_SIZE - 1)
    ReDim locbuf(255)
    
    First.hash = -1
    First.Index = -1
    Last.hash = -1
    Last.Index = -1
    mCount = 0
    lcid = GetUserDefaultLCID()
    decMin = CDec(-9999999)
    decMax = CDec(9999999)
    
End Sub

Private Sub Class_Terminate()
    Erase List()
End Sub

Changed text

Open file

Option Explicit

Public Enum CompareMethod   ' Метод сравнения
    BinaryCompare
    TextCompare
End Enum

Public Enum EnumMethod      ' Метод перечисления для For each
    ENUM_BY_KEY
    ENUM_BY_VALUE
End Enum

' // Получить перечислитель

' / Задать новый объектный ключ
Public Property Set Key(Key As Variant, NewKey As Variant)
    Key_ Key, NewKey
End Property

' // Удалить все элементы
Public Sub RemoveAll()
Attribute RemoveAll.VB_Description = "Очистить таблицу."
    Call Class_Initialize
End Sub

' // Получить список ключей
Public Function Keys() As Variant
Attribute Keys.VB_Description = "Получить массив всех ключей словаря.\n"
    Dim pt As tPointer, i As Long, ret() As Variant
    
	If mCount = 0 Then Keys = Array(): Exit Function
    
    pt = First
    ReDim ret(mCount - 1)
    
    Do
    
        VariantCopy ret(i), List(pt.hash).Elements(pt.Index).Key
        pt = List(pt.hash).Elements(pt.Index).Next
        i = i + 1
        
    Loop While i < mCount
    
    Keys = ret
End Function

' //

Private Sub Add_(pt As tPointer, Key As Variant, value As Variant)

Private Sub Remove_(pt As tPointer)
    Dim ln  As tPointer
    Dim lp  As tPointer
    Dim p   As tPointer
    Dim l   As Long

VariantCopy value, List(pt1.hash).Elements(pt1.Index).value
    Remove_ pt1
    pt2.Index = List(pt2.hash).ElementsCount
    Add_ pt2, NewKey, value
    
End Sub

Next
        
        Case vbNull
            
            For i = 0 To List(hash).ElementsCount - 1

Private Function CalcHash(value As Variant) As Long
    Dim i       As Long
    Dim typ     As Integer
    Dim ptr     As Long
    Dim length  As Long
    Dim dbl     As Double
    Dim cur     As Currency
    Dim sgl     As Single
    
    ptr = VarPtr(value)
    GetMem2 ByVal ptr, typ
    
    Do While typ = &H400C
        
        GetMem2 ByVal ptr + 8, ptr
        GetMem2 ByVal ptr, typ
        
    Loop
    
    ptr = ptr + 8
    
    If typ And &H4000 Then
        
        GetMem4 ByVal ptr, ptr
        typ = typ And &HBFFF&
        
    End If
    
    Select Case typ
    Case vbString
        
        GetMem4 ByVal ptr, ptr
		If ptr = 0 Then CalcHash = 0: Exit Function
        GetMem4 ByVal ptr - 4, length
        length = length \ 2
        
        If length >= UBound(locbuf) Then
            ReDim locbuf(length + 1)
        End If
        
        If mCompareMode = vbTextCompare Then
        
            LCMapString lcid, LCMAP_LOWERCASE, ByVal ptr, length, locbuf(0), length
        Else
        
            memcpy locbuf(0), ByVal ptr, length * 2&
        End If
        
        For i = 0 To length - 1
            CalcHash = (CalcHash * 37& + locbuf(i) And &HFFFF&)
        Next
        
    Case vbByte
    
        GetMem1 ByVal ptr, CalcHash
        VarR4FromUI1 ByVal CalcHash, CalcHash
        
    Case vbInteger, vbBoolean

Private Function CreateEnumObject() As Long
    
    If lpAsm = 0 Then

Private Sub Class_Initialize()

Private Sub Class_Terminate()
    Erase List()
End Sub