fpc/rtl/objpas/fgl.pp
paul 790f6b0a4b compiler: use delphi syntax for type, const and var section declarations in classes instead of fpc generics syntax
rtl: fix fgl to use the new syntax
tests: fix generics tests to use the new syntax

git-svn-id: trunk@15646 -
2010-07-27 00:59:32 +00:00

1361 lines
36 KiB
ObjectPascal

{
This file is part of the Free Pascal run time library.
Copyright (c) 2006 by Micha Nelissen
member of the Free Pascal development team
It contains the Free Pascal generics library
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************}
{$mode objfpc}
{ be aware, this unit is a prototype and subject to be changed heavily }
unit fgl;
interface
uses
types, sysutils;
const
MaxListSize = Maxint div 16;
type
EListError = class(Exception);
TFPSList = class;
TFPSListCompareFunc = function(Key1, Key2: Pointer): Integer of object;
TFPSList = class(TObject)
protected
FList: PByte;
FCount: Integer;
FCapacity: Integer; { list is one longer than capacity, for temp }
FItemSize: Integer;
procedure CopyItem(Src, Dest: Pointer); virtual;
procedure Deref(Item: Pointer); virtual; overload;
procedure Deref(FromIndex, ToIndex: Integer); overload;
function Get(Index: Integer): Pointer;
procedure InternalExchange(Index1, Index2: Integer);
function InternalGet(Index: Integer): Pointer; {$ifdef CLASSESINLINE} inline; {$endif}
procedure InternalPut(Index: Integer; NewItem: Pointer);
procedure Put(Index: Integer; Item: Pointer);
procedure QuickSort(L, R: Integer; Compare: TFPSListCompareFunc);
procedure SetCapacity(NewCapacity: Integer);
procedure SetCount(NewCount: Integer);
procedure RaiseIndexError(Index : Integer);
property InternalItems[Index: Integer]: Pointer read InternalGet write InternalPut;
public
constructor Create(AItemSize: Integer = sizeof(Pointer));
destructor Destroy; override;
function Add(Item: Pointer): Integer;
procedure Clear;
procedure Delete(Index: Integer);
class procedure Error(const Msg: string; Data: PtrInt);
procedure Exchange(Index1, Index2: Integer);
function Expand: TFPSList;
function Extract(Item: Pointer): Pointer;
function First: Pointer;
function IndexOf(Item: Pointer): Integer;
procedure Insert(Index: Integer; Item: Pointer);
function Insert(Index: Integer): Pointer;
function Last: Pointer;
procedure Move(CurIndex, NewIndex: Integer);
procedure Assign(Obj: TFPSList);
function Remove(Item: Pointer): Integer;
procedure Pack;
procedure Sort(Compare: TFPSListCompareFunc);
property Capacity: Integer read FCapacity write SetCapacity;
property Count: Integer read FCount write SetCount;
property Items[Index: Integer]: Pointer read Get write Put; default;
property ItemSize: Integer read FItemSize;
property List: PByte read FList;
end;
{$ifndef VER2_0}
const
MaxGListSize = MaxInt div 1024;
type
generic TFPGListEnumerator<T> = class(TObject)
protected
FList: TFPSList;
FPosition: Integer;
function GetCurrent: T;
public
constructor Create(AList: TFPSList);
function MoveNext: Boolean;
property Current: T read GetCurrent;
end;
generic TFPGList<T> = class(TFPSList)
public
type
TCompareFunc = function(const Item1, Item2: T): Integer;
TTypeList = array[0..MaxGListSize] of T;
PTypeList = ^TTypeList;
PT = ^T;
TFPGListEnumeratorSpec = specialize TFPGListEnumerator<T>;
protected
var
FOnCompare: TCompareFunc;
procedure CopyItem(Src, Dest: Pointer); override;
procedure Deref(Item: Pointer); override;
function Get(Index: Integer): T; {$ifdef CLASSESINLINE} inline; {$endif}
function GetList: PTypeList; {$ifdef CLASSESINLINE} inline; {$endif}
function ItemPtrCompare(Item1, Item2: Pointer): Integer;
procedure Put(Index: Integer; const Item: T); {$ifdef CLASSESINLINE} inline; {$endif}
public
constructor Create;
function Add(const Item: T): Integer; {$ifdef CLASSESINLINE} inline; {$endif}
function Extract(const Item: T): T; {$ifdef CLASSESINLINE} inline; {$endif}
function First: T; {$ifdef CLASSESINLINE} inline; {$endif}
function GetEnumerator: TFPGListEnumeratorSpec; {$ifdef CLASSESINLINE} inline; {$endif}
function IndexOf(const Item: T): Integer;
procedure Insert(Index: Integer; const Item: T); {$ifdef CLASSESINLINE} inline; {$endif}
function Last: T; {$ifdef CLASSESINLINE} inline; {$endif}
{$info FIXME: bug #10479: implement TFPGList<T>.Assign(TFPGList) to work somehow}
{procedure Assign(Source: TFPGList);}
function Remove(const Item: T): Integer; {$ifdef CLASSESINLINE} inline; {$endif}
procedure Sort(Compare: TCompareFunc);
property Items[Index: Integer]: T read Get write Put; default;
property List: PTypeList read GetList;
end;
generic TFPGObjectList<T> = class(TFPSList)
public
type
TCompareFunc = function(const Item1, Item2: T): Integer;
TTypeList = array[0..MaxGListSize] of T;
PTypeList = ^TTypeList;
PT = ^T;
protected
var
FOnCompare: TCompareFunc;
FFreeObjects: Boolean;
procedure CopyItem(Src, Dest: Pointer); override;
procedure Deref(Item: Pointer); override;
function Get(Index: Integer): T; {$ifdef CLASSESINLINE} inline; {$endif}
function GetList: PTypeList; {$ifdef CLASSESINLINE} inline; {$endif}
function ItemPtrCompare(Item1, Item2: Pointer): Integer;
procedure Put(Index: Integer; const Item: T); {$ifdef CLASSESINLINE} inline; {$endif}
public
constructor Create(FreeObjects: Boolean = True);
function Add(const Item: T): Integer; {$ifdef CLASSESINLINE} inline; {$endif}
function Extract(const Item: T): T; {$ifdef CLASSESINLINE} inline; {$endif}
function First: T; {$ifdef CLASSESINLINE} inline; {$endif}
function IndexOf(const Item: T): Integer;
procedure Insert(Index: Integer; const Item: T); {$ifdef CLASSESINLINE} inline; {$endif}
function Last: T; {$ifdef CLASSESINLINE} inline; {$endif}
{$info FIXME: bug #10479: implement TFPGObjectList<T>.Assign(TFPGList) to work somehow}
{procedure Assign(Source: TFPGList);}
function Remove(const Item: T): Integer; {$ifdef CLASSESINLINE} inline; {$endif}
procedure Sort(Compare: TCompareFunc);
property Items[Index: Integer]: T read Get write Put; default;
property List: PTypeList read GetList;
property FreeObjects: Boolean read FFreeObjects write FFreeObjects;
end;
generic TFPGInterfacedObjectList<T> = class(TFPSList)
public
type
TCompareFunc = function(const Item1, Item2: T): Integer;
TTypeList = array[0..MaxGListSize] of T;
PTypeList = ^TTypeList;
PT = ^T;
protected
var
FOnCompare: TCompareFunc;
procedure CopyItem(Src, Dest: Pointer); override;
procedure Deref(Item: Pointer); override;
function Get(Index: Integer): T; {$ifdef CLASSESINLINE} inline; {$endif}
function GetList: PTypeList; {$ifdef CLASSESINLINE} inline; {$endif}
function ItemPtrCompare(Item1, Item2: Pointer): Integer;
procedure Put(Index: Integer; const Item: T); {$ifdef CLASSESINLINE} inline; {$endif}
public
constructor Create;
function Add(const Item: T): Integer; {$ifdef CLASSESINLINE} inline; {$endif}
function Extract(const Item: T): T; {$ifdef CLASSESINLINE} inline; {$endif}
function First: T; {$ifdef CLASSESINLINE} inline; {$endif}
function IndexOf(const Item: T): Integer;
procedure Insert(Index: Integer; const Item: T); {$ifdef CLASSESINLINE} inline; {$endif}
function Last: T; {$ifdef CLASSESINLINE} inline; {$endif}
{$info FIXME: bug #10479: implement TFPGInterfacedObjectList<T>.Assign(TFPGList) to work somehow}
{procedure Assign(Source: TFPGList);}
function Remove(const Item: T): Integer; {$ifdef CLASSESINLINE} inline; {$endif}
procedure Sort(Compare: TCompareFunc);
property Items[Index: Integer]: T read Get write Put; default;
property List: PTypeList read GetList;
end;
{$endif}
TFPSMap = class(TFPSList)
private
FKeySize: Integer;
FDataSize: Integer;
FDuplicates: TDuplicates;
FSorted: Boolean;
FOnKeyPtrCompare: TFPSListCompareFunc;
FOnDataPtrCompare: TFPSListCompareFunc;
procedure SetSorted(Value: Boolean);
protected
function BinaryCompareKey(Key1, Key2: Pointer): Integer;
function BinaryCompareData(Data1, Data2: Pointer): Integer;
procedure SetOnKeyPtrCompare(Proc: TFPSListCompareFunc);
procedure SetOnDataPtrCompare(Proc: TFPSListCompareFunc);
procedure InitOnPtrCompare; virtual;
procedure CopyKey(Src, Dest: Pointer); virtual;
procedure CopyData(Src, Dest: Pointer); virtual;
function GetKey(Index: Integer): Pointer;
function GetKeyData(AKey: Pointer): Pointer;
function GetData(Index: Integer): Pointer;
function LinearIndexOf(AKey: Pointer): Integer;
procedure PutKey(Index: Integer; AKey: Pointer);
procedure PutKeyData(AKey: Pointer; NewData: Pointer);
procedure PutData(Index: Integer; AData: Pointer);
public
constructor Create(AKeySize: Integer = sizeof(Pointer);
ADataSize: integer = sizeof(Pointer));
function Add(AKey, AData: Pointer): Integer;
function Add(AKey: Pointer): Integer;
function Find(AKey: Pointer; out Index: Integer): Boolean;
function IndexOf(AKey: Pointer): Integer;
function IndexOfData(AData: Pointer): Integer;
function Insert(Index: Integer): Pointer;
procedure Insert(Index: Integer; out AKey, AData: Pointer);
procedure InsertKey(Index: Integer; AKey: Pointer);
procedure InsertKeyData(Index: Integer; AKey, AData: Pointer);
function Remove(AKey: Pointer): Integer;
procedure Sort;
property Duplicates: TDuplicates read FDuplicates write FDuplicates;
property KeySize: Integer read FKeySize;
property DataSize: Integer read FDataSize;
property Keys[Index: Integer]: Pointer read GetKey write PutKey;
property Data[Index: Integer]: Pointer read GetData write PutData;
property KeyData[Key: Pointer]: Pointer read GetKeyData write PutKeyData; default;
property Sorted: Boolean read FSorted write SetSorted;
property OnPtrCompare: TFPSListCompareFunc read FOnKeyPtrCompare write SetOnKeyPtrCompare; //deprecated;
property OnKeyPtrCompare: TFPSListCompareFunc read FOnKeyPtrCompare write SetOnKeyPtrCompare;
property OnDataPtrCompare: TFPSListCompareFunc read FOnDataPtrCompare write SetOnDataPtrCompare;
end;
{$ifndef VER2_0}
generic TFPGMap<TKey, TData> = class(TFPSMap)
public
type
TKeyCompareFunc = function(const Key1, Key2: TKey): Integer;
TDataCompareFunc = function(const Data1, Data2: TData): Integer;
PKey = ^TKey;
PData = ^TData;
protected
var
FOnKeyCompare: TKeyCompareFunc;
FOnDataCompare: TDataCompareFunc;
procedure CopyItem(Src, Dest: Pointer); override;
procedure CopyKey(Src, Dest: Pointer); override;
procedure CopyData(Src, Dest: Pointer); override;
procedure Deref(Item: Pointer); override;
procedure InitOnPtrCompare; override;
function GetKey(Index: Integer): TKey; {$ifdef CLASSESINLINE} inline; {$endif}
function GetKeyData(const AKey: TKey): TData; {$ifdef CLASSESINLINE} inline; {$endif}
function GetData(Index: Integer): TData; {$ifdef CLASSESINLINE} inline; {$endif}
function KeyCompare(Key1, Key2: Pointer): Integer;
function KeyCustomCompare(Key1, Key2: Pointer): Integer;
//function DataCompare(Data1, Data2: Pointer): Integer;
function DataCustomCompare(Data1, Data2: Pointer): Integer;
procedure PutKey(Index: Integer; const NewKey: TKey); {$ifdef CLASSESINLINE} inline; {$endif}
procedure PutKeyData(const AKey: TKey; const NewData: TData); {$ifdef CLASSESINLINE} inline; {$endif}
procedure PutData(Index: Integer; const NewData: TData); {$ifdef CLASSESINLINE} inline; {$endif}
procedure SetOnKeyCompare(NewCompare: TKeyCompareFunc);
procedure SetOnDataCompare(NewCompare: TDataCompareFunc);
public
constructor Create;
function Add(const AKey: TKey; const AData: TData): Integer; {$ifdef CLASSESINLINE} inline; {$endif}
function Add(const AKey: TKey): Integer; {$ifdef CLASSESINLINE} inline; {$endif}
function Find(const AKey: TKey; out Index: Integer): Boolean; {$ifdef CLASSESINLINE} inline; {$endif}
function IndexOf(const AKey: TKey): Integer; {$ifdef CLASSESINLINE} inline; {$endif}
function IndexOfData(const AData: TData): Integer;
procedure InsertKey(Index: Integer; const AKey: TKey);
procedure InsertKeyData(Index: Integer; const AKey: TKey; const AData: TData);
function Remove(const AKey: TKey): Integer;
property Keys[Index: Integer]: TKey read GetKey write PutKey;
property Data[Index: Integer]: TData read GetData write PutData;
property KeyData[const AKey: TKey]: TData read GetKeyData write PutKeyData; default;
property OnCompare: TKeyCompareFunc read FOnKeyCompare write SetOnKeyCompare; //deprecated;
property OnKeyCompare: TKeyCompareFunc read FOnKeyCompare write SetOnKeyCompare;
property OnDataCompare: TDataCompareFunc read FOnDataCompare write SetOnDataCompare;
end;
{$endif}
implementation
uses
rtlconsts;
{****************************************************************************
TFPSList
****************************************************************************}
constructor TFPSList.Create(AItemSize: integer);
begin
inherited Create;
FItemSize := AItemSize;
end;
destructor TFPSList.Destroy;
begin
Clear;
// Clear() does not clear the whole list; there is always a single temp entry
// at the end which is never freed. Take care of that one here.
FreeMem(FList);
inherited Destroy;
end;
procedure TFPSList.CopyItem(Src, Dest: Pointer);
begin
System.Move(Src^, Dest^, FItemSize);
end;
procedure TFPSList.RaiseIndexError(Index : Integer);
begin
Error(SListIndexError, Index);
end;
function TFPSList.InternalGet(Index: Integer): Pointer;
begin
Result:=FList+Index*ItemSize;
end;
procedure TFPSList.InternalPut(Index: Integer; NewItem: Pointer);
var
ListItem: Pointer;
begin
ListItem := InternalItems[Index];
CopyItem(NewItem, ListItem);
end;
function TFPSList.Get(Index: Integer): Pointer;
begin
if (Index < 0) or (Index >= FCount) then
RaiseIndexError(Index);
Result := InternalItems[Index];
end;
procedure TFPSList.Put(Index: Integer; Item: Pointer);
begin
if (Index < 0) or (Index >= FCount) then
RaiseIndexError(Index);
InternalItems[Index] := Item;
end;
procedure TFPSList.SetCapacity(NewCapacity: Integer);
begin
if (NewCapacity < FCount) or (NewCapacity > MaxListSize) then
Error(SListCapacityError, NewCapacity);
if NewCapacity = FCapacity then
exit;
ReallocMem(FList, (NewCapacity+1) * FItemSize);
FillChar(InternalItems[FCapacity]^, (NewCapacity+1-FCapacity) * FItemSize, #0);
FCapacity := NewCapacity;
end;
procedure TFPSList.Deref(Item: Pointer);
begin
end;
procedure TFPSList.Deref(FromIndex, ToIndex: Integer);
var
ListItem, ListItemLast: Pointer;
begin
ListItem := InternalItems[FromIndex];
ListItemLast := InternalItems[ToIndex];
repeat
Deref(ListItem);
if ListItem = ListItemLast then
break;
ListItem := PByte(ListItem) + ItemSize;
until false;
end;
procedure TFPSList.SetCount(NewCount: Integer);
begin
if (NewCount < 0) or (NewCount > MaxListSize) then
Error(SListCountError, NewCount);
if NewCount > FCapacity then
SetCapacity(NewCount);
if NewCount > FCount then
FillByte(InternalItems[FCount]^, (NewCount-FCount) * FItemSize, 0)
else if NewCount < FCount then
Deref(NewCount, FCount-1);
FCount := NewCount;
end;
function TFPSList.Add(Item: Pointer): Integer;
begin
if FCount = FCapacity then
Self.Expand;
CopyItem(Item, InternalItems[FCount]);
Result := FCount;
Inc(FCount);
end;
procedure TFPSList.Clear;
begin
if Assigned(FList) then
begin
SetCount(0);
SetCapacity(0);
end;
end;
procedure TFPSList.Delete(Index: Integer);
var
ListItem: Pointer;
begin
if (Index < 0) or (Index >= FCount) then
Error(SListIndexError, Index);
Dec(FCount);
ListItem := InternalItems[Index];
Deref(ListItem);
System.Move(InternalItems[Index+1]^, ListItem^, (FCount - Index) * FItemSize);
// Shrink the list if appropriate
if (FCapacity > 256) and (FCount < FCapacity shr 2) then
begin
FCapacity := FCapacity shr 1;
ReallocMem(FList, (FCapacity+1) * FItemSize);
end;
end;
function TFPSList.Extract(Item: Pointer): Pointer;
var
i : Integer;
begin
Result := nil;
i := IndexOf(Item);
if i >= 0 then
begin
Result := InternalItems[i];
System.Move(Result^, InternalItems[FCapacity]^, FItemSize);
Delete(i);
end;
end;
class procedure TFPSList.Error(const Msg: string; Data: PtrInt);
begin
raise EListError.CreateFmt(Msg,[Data]) at get_caller_addr(get_frame);
end;
procedure TFPSList.Exchange(Index1, Index2: Integer);
begin
if ((Index1 >= FCount) or (Index1 < 0)) then
Error(SListIndexError, Index1);
if ((Index2 >= FCount) or (Index2 < 0)) then
Error(SListIndexError, Index2);
InternalExchange(Index1, Index2);
end;
procedure TFPSList.InternalExchange(Index1, Index2: Integer);
begin
System.Move(InternalItems[Index1]^, InternalItems[FCapacity]^, FItemSize);
System.Move(InternalItems[Index2]^, InternalItems[Index1]^, FItemSize);
System.Move(InternalItems[FCapacity]^, InternalItems[Index2]^, FItemSize);
end;
function TFPSList.Expand: TFPSList;
var
IncSize : Longint;
begin
if FCount < FCapacity then exit;
IncSize := 4;
if FCapacity > 3 then IncSize := IncSize + 4;
if FCapacity > 8 then IncSize := IncSize + 8;
if FCapacity > 127 then Inc(IncSize, FCapacity shr 2);
SetCapacity(FCapacity + IncSize);
Result := Self;
end;
function TFPSList.First: Pointer;
begin
If FCount = 0 then
Result := Nil
else
Result := InternalItems[0];
end;
function TFPSList.IndexOf(Item: Pointer): Integer;
var
ListItem: Pointer;
begin
Result := 0;
ListItem := First;
while (Result < FCount) and (CompareByte(ListItem^, Item^, FItemSize) <> 0) do
begin
Inc(Result);
ListItem := PByte(ListItem)+FItemSize;
end;
if Result = FCount then Result := -1;
end;
function TFPSList.Insert(Index: Integer): Pointer;
begin
if (Index < 0) or (Index > FCount) then
Error(SListIndexError, Index);
if FCount = FCapacity then Self.Expand;
Result := InternalItems[Index];
if Index<FCount then
begin
System.Move(Result^, (Result+FItemSize)^, (FCount - Index) * FItemSize);
{ clear for compiler assisted types }
System.FillByte(Result^, FItemSize, 0);
end;
Inc(FCount);
end;
procedure TFPSList.Insert(Index: Integer; Item: Pointer);
begin
CopyItem(Item, Insert(Index));
end;
function TFPSList.Last: Pointer;
begin
if FCount = 0 then
Result := nil
else
Result := InternalItems[FCount - 1];
end;
procedure TFPSList.Move(CurIndex, NewIndex: Integer);
var
CurItem, NewItem, TmpItem, Src, Dest: Pointer;
MoveCount: Integer;
begin
if (CurIndex < 0) or (CurIndex >= Count) then
Error(SListIndexError, CurIndex);
if (NewIndex < 0) or (NewIndex >= Count) then
Error(SListIndexError, NewIndex);
if CurIndex = NewIndex then
exit;
CurItem := InternalItems[CurIndex];
NewItem := InternalItems[NewIndex];
TmpItem := InternalItems[FCapacity];
System.Move(CurItem^, TmpItem^, FItemSize);
if NewIndex > CurIndex then
begin
Src := InternalItems[CurIndex+1];
Dest := CurItem;
MoveCount := NewIndex - CurIndex;
end else begin
Src := NewItem;
Dest := InternalItems[NewIndex+1];
MoveCount := CurIndex - NewIndex;
end;
System.Move(Src^, Dest^, MoveCount * FItemSize);
System.Move(TmpItem^, NewItem^, FItemSize);
end;
function TFPSList.Remove(Item: Pointer): Integer;
begin
Result := IndexOf(Item);
if Result <> -1 then
Delete(Result);
end;
procedure TFPSList.Pack;
var
NewCount,
i : integer;
pdest,
psrc : Pointer;
begin
NewCount:=0;
psrc:=First;
pdest:=psrc;
For I:=0 To FCount-1 Do
begin
if assigned(pointer(psrc^)) then
begin
System.Move(psrc^, pdest^, FItemSize);
inc(pdest);
inc(NewCount);
end;
inc(psrc);
end;
FCount:=NewCount;
end;
// Needed by Sort method.
procedure TFPSList.QuickSort(L, R: Integer; Compare: TFPSListCompareFunc);
var
I, J, P: Integer;
PivotItem: Pointer;
begin
repeat
I := L;
J := R;
P := (L + R) div 2;
repeat
PivotItem := InternalItems[P];
while Compare(PivotItem, InternalItems[I]) > 0 do
Inc(I);
while Compare(PivotItem, InternalItems[J]) < 0 do
Dec(J);
if I <= J then
begin
InternalExchange(I, J);
if P = I then
P := J
else if P = J then
P := I;
Inc(I);
Dec(J);
end;
until I > J;
if L < J then
QuickSort(L, J, Compare);
L := I;
until I >= R;
end;
procedure TFPSList.Sort(Compare: TFPSListCompareFunc);
begin
if not Assigned(FList) or (FCount < 2) then exit;
QuickSort(0, FCount-1, Compare);
end;
procedure TFPSList.Assign(Obj: TFPSList);
var
i: Integer;
begin
if Obj.ItemSize <> FItemSize then
Error(SListItemSizeError, 0);
Clear;
for I := 0 to Obj.Count - 1 do
Add(Obj[i]);
end;
{$ifndef VER2_0}
{****************************************************************************}
{* TFPGListEnumerator *}
{****************************************************************************}
function TFPGListEnumerator.GetCurrent: T;
begin
Result := T(FList.Items[FPosition]^);
end;
constructor TFPGListEnumerator.Create(AList: TFPSList);
begin
inherited Create;
FList := AList;
FPosition := -1;
end;
function TFPGListEnumerator.MoveNext: Boolean;
begin
inc(FPosition);
Result := FPosition < FList.Count;
end;
{****************************************************************************}
{* TFPGList *}
{****************************************************************************}
constructor TFPGList.Create;
begin
inherited Create(sizeof(T));
end;
procedure TFPGList.CopyItem(Src, Dest: Pointer);
begin
T(Dest^) := T(Src^);
end;
procedure TFPGList.Deref(Item: Pointer);
begin
Finalize(T(Item^));
end;
function TFPGList.Get(Index: Integer): T;
begin
Result := T(inherited Get(Index)^);
end;
function TFPGList.GetList: PTypeList;
begin
Result := PTypeList(FList);
end;
function TFPGList.ItemPtrCompare(Item1, Item2: Pointer): Integer;
begin
Result := FOnCompare(T(Item1^), T(Item2^));
end;
procedure TFPGList.Put(Index: Integer; const Item: T);
begin
inherited Put(Index, @Item);
end;
function TFPGList.Add(const Item: T): Integer;
begin
Result := inherited Add(@Item);
end;
function TFPGList.Extract(const Item: T): T;
var
ResPtr: Pointer;
begin
ResPtr := inherited Extract(@Item);
if ResPtr <> nil then
Result := T(ResPtr^)
else
FillByte(Result, sizeof(T), 0);
end;
function TFPGList.First: T;
begin
Result := T(inherited First^);
end;
function TFPGList.GetEnumerator: TFPGListEnumeratorSpec;
begin
Result := TFPGListEnumeratorSpec.Create(Self);
end;
function TFPGList.IndexOf(const Item: T): Integer;
begin
Result := 0;
{$info TODO: fix inlining to work! InternalItems[Result]^}
while (Result < FCount) and (PT(FList)[Result] <> Item) do
Inc(Result);
if Result = FCount then
Result := -1;
end;
procedure TFPGList.Insert(Index: Integer; const Item: T);
begin
T(inherited Insert(Index)^) := Item;
end;
function TFPGList.Last: T;
begin
Result := T(inherited Last^);
end;
function TFPGList.Remove(const Item: T): Integer;
begin
Result := IndexOf(Item);
if Result >= 0 then
Delete(Result);
end;
procedure TFPGList.Sort(Compare: TCompareFunc);
begin
FOnCompare := Compare;
inherited Sort(@ItemPtrCompare);
end;
{****************************************************************************}
{* TFPGObjectList *}
{****************************************************************************}
constructor TFPGObjectList.Create(FreeObjects: Boolean);
begin
inherited Create;
FFreeObjects := FreeObjects;
end;
procedure TFPGObjectList.CopyItem(Src, Dest: Pointer);
begin
T(Dest^) := T(Src^);
{if TObject(Dest^) is TInterfacedObject then
T(Dest^)._AddRef;}
end;
procedure TFPGObjectList.Deref(Item: Pointer);
begin
{if TObject(Item^) is TInterfacedObject then
T(Item^)._Release
else}
if FFreeObjects then
T(Item^).Free;
end;
function TFPGObjectList.Get(Index: Integer): T;
begin
Result := T(inherited Get(Index)^);
end;
function TFPGObjectList.GetList: PTypeList;
begin
Result := PTypeList(FList);
end;
function TFPGObjectList.ItemPtrCompare(Item1, Item2: Pointer): Integer;
begin
Result := FOnCompare(T(Item1^), T(Item2^));
end;
procedure TFPGObjectList.Put(Index: Integer; const Item: T);
begin
inherited Put(Index, @Item);
end;
function TFPGObjectList.Add(const Item: T): Integer;
begin
Result := inherited Add(@Item);
end;
function TFPGObjectList.Extract(const Item: T): T;
var
ResPtr: Pointer;
begin
ResPtr := inherited Extract(@Item);
if ResPtr <> nil then
Result := T(ResPtr^)
else
FillByte(Result, sizeof(T), 0);
end;
function TFPGObjectList.First: T;
begin
Result := T(inherited First^);
end;
function TFPGObjectList.IndexOf(const Item: T): Integer;
begin
Result := 0;
{$info TODO: fix inlining to work! InternalItems[Result]^}
while (Result < FCount) and (PT(FList)[Result] <> Item) do
Inc(Result);
if Result = FCount then
Result := -1;
end;
procedure TFPGObjectList.Insert(Index: Integer; const Item: T);
begin
T(inherited Insert(Index)^) := Item;
end;
function TFPGObjectList.Last: T;
begin
Result := T(inherited Last^);
end;
function TFPGObjectList.Remove(const Item: T): Integer;
begin
Result := IndexOf(Item);
if Result >= 0 then
Delete(Result);
end;
procedure TFPGObjectList.Sort(Compare: TCompareFunc);
begin
FOnCompare := Compare;
inherited Sort(@ItemPtrCompare);
end;
{****************************************************************************}
{* TFPGInterfacedObjectList *}
{****************************************************************************}
constructor TFPGInterfacedObjectList.Create;
begin
inherited Create;
end;
procedure TFPGInterfacedObjectList.CopyItem(Src, Dest: Pointer);
begin
T(Dest^) := T(Src^);
if Assigned(Pointer(Dest^)) then
T(Dest^)._AddRef;
end;
procedure TFPGInterfacedObjectList.Deref(Item: Pointer);
begin
if Assigned(Pointer(Item^)) then
T(Item^)._Release;
end;
function TFPGInterfacedObjectList.Get(Index: Integer): T;
begin
Result := T(inherited Get(Index)^);
end;
function TFPGInterfacedObjectList.GetList: PTypeList;
begin
Result := PTypeList(FList);
end;
function TFPGInterfacedObjectList.ItemPtrCompare(Item1, Item2: Pointer): Integer;
begin
Result := FOnCompare(T(Item1^), T(Item2^));
end;
procedure TFPGInterfacedObjectList.Put(Index: Integer; const Item: T);
begin
inherited Put(Index, @Item);
end;
function TFPGInterfacedObjectList.Add(const Item: T): Integer;
begin
Result := inherited Add(@Item);
end;
function TFPGInterfacedObjectList.Extract(const Item: T): T;
var
ResPtr: Pointer;
begin
ResPtr := inherited Extract(@Item);
if ResPtr <> nil then
Result := T(ResPtr^)
else
FillByte(Result, sizeof(T), 0);
end;
function TFPGInterfacedObjectList.First: T;
begin
Result := T(inherited First^);
end;
function TFPGInterfacedObjectList.IndexOf(const Item: T): Integer;
begin
Result := 0;
{$info TODO: fix inlining to work! InternalItems[Result]^}
while (Result < FCount) and (PT(FList)[Result] <> Item) do
Inc(Result);
if Result = FCount then
Result := -1;
end;
procedure TFPGInterfacedObjectList.Insert(Index: Integer; const Item: T);
begin
T(inherited Insert(Index)^) := Item;
end;
function TFPGInterfacedObjectList.Last: T;
begin
Result := T(inherited Last^);
end;
function TFPGInterfacedObjectList.Remove(const Item: T): Integer;
begin
Result := IndexOf(Item);
if Result >= 0 then
Delete(Result);
end;
procedure TFPGInterfacedObjectList.Sort(Compare: TCompareFunc);
begin
FOnCompare := Compare;
inherited Sort(@ItemPtrCompare);
end;
{$endif}
{****************************************************************************
TFPSMap
****************************************************************************}
constructor TFPSMap.Create(AKeySize: Integer; ADataSize: integer);
begin
inherited Create(AKeySize+ADataSize);
FKeySize := AKeySize;
FDataSize := ADataSize;
InitOnPtrCompare;
end;
procedure TFPSMap.CopyKey(Src, Dest: Pointer);
begin
System.Move(Src^, Dest^, FKeySize);
end;
procedure TFPSMap.CopyData(Src, Dest: Pointer);
begin
System.Move(Src^, Dest^, FDataSize);
end;
function TFPSMap.GetKey(Index: Integer): Pointer;
begin
Result := Items[Index];
end;
function TFPSMap.GetData(Index: Integer): Pointer;
begin
Result := PByte(Items[Index])+FKeySize;
end;
function TFPSMap.GetKeyData(AKey: Pointer): Pointer;
var
I: Integer;
begin
I := IndexOf(AKey);
if I >= 0 then
Result := InternalItems[I]+FKeySize
else
Error(SMapKeyError, PtrUInt(AKey));
end;
function TFPSMap.BinaryCompareKey(Key1, Key2: Pointer): Integer;
begin
Result := CompareByte(Key1^, Key2^, FKeySize);
end;
function TFPSMap.BinaryCompareData(Data1, Data2: Pointer): Integer;
begin
Result := CompareByte(Data1^, Data1^, FDataSize);
end;
procedure TFPSMap.SetOnKeyPtrCompare(Proc: TFPSListCompareFunc);
begin
if Proc <> nil then
FOnKeyPtrCompare := Proc
else
FOnKeyPtrCompare := @BinaryCompareKey;
end;
procedure TFPSMap.SetOnDataPtrCompare(Proc: TFPSListCompareFunc);
begin
if Proc <> nil then
FOnDataPtrCompare := Proc
else
FOnDataPtrCompare := @BinaryCompareData;
end;
procedure TFPSMap.InitOnPtrCompare;
begin
SetOnKeyPtrCompare(nil);
SetOnDataPtrCompare(nil);
end;
procedure TFPSMap.PutKey(Index: Integer; AKey: Pointer);
begin
if FSorted then
Error(SSortedListError, 0);
CopyKey(AKey, Items[Index]);
end;
procedure TFPSMap.PutData(Index: Integer; AData: Pointer);
begin
CopyData(AData, PByte(Items[Index])+FKeySize);
end;
procedure TFPSMap.PutKeyData(AKey: Pointer; NewData: Pointer);
var
I: Integer;
begin
I := IndexOf(AKey);
if I >= 0 then
Data[I] := NewData
else
Add(AKey, NewData);
end;
procedure TFPSMap.SetSorted(Value: Boolean);
begin
if Value = FSorted then exit;
FSorted := Value;
if Value then Sort;
end;
function TFPSMap.Add(AKey: Pointer): Integer;
begin
if Sorted then
begin
if Find(AKey, Result) then
case Duplicates of
dupIgnore: exit;
dupError: Error(SDuplicateItem, 0)
end;
end else
Result := Count;
CopyKey(AKey, inherited Insert(Result));
end;
function TFPSMap.Add(AKey, AData: Pointer): Integer;
begin
Result := Add(AKey);
Data[Result] := AData;
end;
function TFPSMap.Find(AKey: Pointer; out Index: Integer): Boolean;
{ Searches for the first item <= Key, returns True if exact match,
sets index to the index f the found string. }
var
I,L,R,Dir: Integer;
begin
Result := false;
// Use binary search.
L := 0;
R := FCount-1;
while L<=R do
begin
I := (L+R) div 2;
Dir := FOnKeyPtrCompare(Items[I], AKey);
if Dir < 0 then
L := I+1
else begin
R := I-1;
if Dir = 0 then
begin
Result := true;
if Duplicates <> dupAccept then
L := I;
end;
end;
end;
Index := L;
end;
function TFPSMap.LinearIndexOf(AKey: Pointer): Integer;
var
ListItem: Pointer;
begin
Result := 0;
ListItem := First;
while (Result < FCount) and (FOnKeyPtrCompare(ListItem, AKey) <> 0) do
begin
Inc(Result);
ListItem := PByte(ListItem)+FItemSize;
end;
if Result = FCount then Result := -1;
end;
function TFPSMap.IndexOf(AKey: Pointer): Integer;
begin
if Sorted then
begin
if not Find(AKey, Result) then
Result := -1;
end else
Result := LinearIndexOf(AKey);
end;
function TFPSMap.IndexOfData(AData: Pointer): Integer;
var
ListItem: Pointer;
begin
Result := 0;
ListItem := First+FKeySize;
while (Result < FCount) and (FOnDataPtrCompare(ListItem, AData) <> 0) do
begin
Inc(Result);
ListItem := PByte(ListItem)+FItemSize;
end;
if Result = FCount then Result := -1;
end;
function TFPSMap.Insert(Index: Integer): Pointer;
begin
if FSorted then
Error(SSortedListError, 0);
Result := inherited Insert(Index);
end;
procedure TFPSMap.Insert(Index: Integer; out AKey, AData: Pointer);
begin
AKey := Insert(Index);
AData := PByte(AKey) + FKeySize;
end;
procedure TFPSMap.InsertKey(Index: Integer; AKey: Pointer);
begin
CopyKey(AKey, Insert(Index));
end;
procedure TFPSMap.InsertKeyData(Index: Integer; AKey, AData: Pointer);
var
ListItem: Pointer;
begin
ListItem := Insert(Index);
CopyKey(AKey, ListItem);
CopyData(AData, PByte(ListItem)+FKeySize);
end;
function TFPSMap.Remove(AKey: Pointer): Integer;
begin
Result := IndexOf(AKey);
if Result >= 0 then
Delete(Result);
end;
procedure TFPSMap.Sort;
begin
inherited Sort(FOnKeyPtrCompare);
end;
{****************************************************************************
TFPGMap
****************************************************************************}
{$ifndef VER2_0}
constructor TFPGMap.Create;
begin
inherited Create(SizeOf(TKey), SizeOf(TData));
end;
procedure TFPGMap.CopyItem(Src, Dest: Pointer);
begin
CopyKey(Src, Dest);
CopyData(PByte(Src)+KeySize, PByte(Dest)+KeySize);
end;
procedure TFPGMap.CopyKey(Src, Dest: Pointer);
begin
TKey(Dest^) := TKey(Src^);
end;
procedure TFPGMap.CopyData(Src, Dest: Pointer);
begin
TData(Dest^) := TData(Src^);
end;
procedure TFPGMap.Deref(Item: Pointer);
begin
Finalize(TKey(Item^));
Finalize(TData(Pointer(PByte(Item)+KeySize)^));
end;
function TFPGMap.GetKey(Index: Integer): TKey;
begin
Result := TKey(inherited GetKey(Index)^);
end;
function TFPGMap.GetData(Index: Integer): TData;
begin
Result := TData(inherited GetData(Index)^);
end;
function TFPGMap.GetKeyData(const AKey: TKey): TData;
begin
Result := TData(inherited GetKeyData(@AKey)^);
end;
function TFPGMap.KeyCompare(Key1, Key2: Pointer): Integer;
begin
if PKey(Key1)^ < PKey(Key2)^ then
Result := -1
else if PKey(Key1)^ > PKey(Key2)^ then
Result := 1
else
Result := 0;
end;
{function TFPGMap.DataCompare(Data1, Data2: Pointer): Integer;
begin
if PData(Data1)^ < PData(Data2)^ then
Result := -1
else if PData(Data1)^ > PData(Data2)^ then
Result := 1
else
Result := 0;
end;}
function TFPGMap.KeyCustomCompare(Key1, Key2: Pointer): Integer;
begin
Result := FOnKeyCompare(TKey(Key1^), TKey(Key2^));
end;
function TFPGMap.DataCustomCompare(Data1, Data2: Pointer): Integer;
begin
Result := FOnDataCompare(TData(Data1^), TData(Data2^));
end;
procedure TFPGMap.SetOnKeyCompare(NewCompare: TKeyCompareFunc);
begin
FOnKeyCompare := NewCompare;
if NewCompare <> nil then
OnKeyPtrCompare := @KeyCustomCompare
else
OnKeyPtrCompare := @KeyCompare;
end;
procedure TFPGMap.SetOnDataCompare(NewCompare: TDataCompareFunc);
begin
FOnDataCompare := NewCompare;
if NewCompare <> nil then
OnDataPtrCompare := @DataCustomCompare
else
OnDataPtrCompare := nil;
end;
procedure TFPGMap.InitOnPtrCompare;
begin
SetOnKeyCompare(nil);
SetOnDataCompare(nil);
end;
procedure TFPGMap.PutKey(Index: Integer; const NewKey: TKey);
begin
inherited PutKey(Index, @NewKey);
end;
procedure TFPGMap.PutData(Index: Integer; const NewData: TData);
begin
inherited PutData(Index, @NewData);
end;
procedure TFPGMap.PutKeyData(const AKey: TKey; const NewData: TData);
begin
inherited PutKeyData(@AKey, @NewData);
end;
function TFPGMap.Add(const AKey: TKey): Integer;
begin
Result := inherited Add(@AKey);
end;
function TFPGMap.Add(const AKey: TKey; const AData: TData): Integer;
begin
Result := inherited Add(@AKey, @AData);
end;
function TFPGMap.Find(const AKey: TKey; out Index: Integer): Boolean;
begin
Result := inherited Find(@AKey, Index);
end;
function TFPGMap.IndexOf(const AKey: TKey): Integer;
begin
Result := inherited IndexOf(@AKey);
end;
function TFPGMap.IndexOfData(const AData: TData): Integer;
begin
{ TODO: loop ? }
Result := inherited IndexOfData(@AData);
end;
procedure TFPGMap.InsertKey(Index: Integer; const AKey: TKey);
begin
inherited InsertKey(Index, @AKey);
end;
procedure TFPGMap.InsertKeyData(Index: Integer; const AKey: TKey; const AData: TData);
begin
inherited InsertKeyData(Index, @AKey, @AData);
end;
function TFPGMap.Remove(const AKey: TKey): Integer;
begin
Result := inherited Remove(@AKey);
end;
{$endif}
end.