rtl: do not use TDataModule and TFormatSettings in initialization

packages/rtl/classes.pas

@@ -1426,6 +1426,9 @@ type
   { ---------------------------------------------------------------------
       TDatamodule support
     ---------------------------------------------------------------------}
+
+    { TDataModule }
+
     TDataModule = class(TComponent)
     private
       FDPos: TPoint;
@@ -1455,6 +1458,7 @@ type
       constructor Create(AOwner: TComponent); override;
       Constructor CreateNew(AOwner: TComponent);
       Constructor CreateNew(AOwner: TComponent; CreateMode: Integer); virtual;
+      class constructor ClassCreate;
       destructor Destroy; override;
       Procedure AfterConstruction; override;
       Procedure BeforeDestruction; override;
@@ -1607,17 +1611,53 @@ begin
     Result:=String(TJSFunction(@TJSString.fromCharCode).apply(nil,TJSValueDynArray(JSValue(a))));
 end;
 
+function CreateComponentfromRes(const res : string; Inst : THandle; var Component : TComponent) : Boolean;
 
-type
+var
-  TIntConst = class
+  ResStream : TResourceStream;
-  Private
+
-    IntegerType: PTypeInfo;             // The integer type RTTI pointer
+  Src : TStream;
-    IdentToIntFn: TIdentToInt;          // Identifier to Integer conversion
+  aInfo : TResourceInfo;
-    IntToIdentFn: TIntToIdent;          // Integer to Identifier conversion
+
-  Public
+begin
-    constructor Create(AIntegerType: PTypeInfo; AIdentToInt: TIdentToInt;
+  if Inst=0 then ;
-      AIntToIdent: TIntToIdent);
+  result:=GetResourceInfo(Res,aInfo);
+  if Result then
+    begin
+    ResStream:=TResourceStream.Create(aInfo);
+    try
+      if Not FormResourceIsText then
+        Src:=ResStream
+      else
+        begin
+        Src:=TMemoryStream.Create;
+        ObjectTextToBinary(ResStream,Src);
+        Src.Position:=0;
         end;
+      Component:=Src.ReadComponent(Component);
+    finally
+      if Src<>ResStream then
+        Src.Free;
+      ResStream.Free;
+    end;
+    end;
+end;
+
+function DefaultInitHandler(Instance: TComponent; RootAncestor: TClass): Boolean;
+
+  function doinit(_class : TClass) : boolean;
+    begin
+      result:=false;
+      if (_class.ClassType=TComponent) or (_class.ClassType=RootAncestor) then
+        exit;
+      result:=doinit(_class.ClassParent);
+      // Resources are written with their unit name
+      result:=CreateComponentfromRes(_class.UnitName,0,Instance) or result;
+    end;
+
+begin
+  result:=doinit(Instance.ClassType);
+end;
 
 { TResourceStream }
 
@@ -1745,6 +1785,17 @@ begin
   WriteBuffer(B,Length(B));
 end;
 
+type
+  TIntConst = class
+  Private
+    IntegerType: PTypeInfo;             // The integer type RTTI pointer
+    IdentToIntFn: TIdentToInt;          // Identifier to Integer conversion
+    IntToIdentFn: TIntToIdent;          // Integer to Identifier conversion
+  Public
+    constructor Create(AIntegerType: PTypeInfo; AIdentToInt: TIdentToInt;
+      AIntToIdent: TIntToIdent);
+  end;
+
 constructor TIntConst.Create(AIntegerType: PTypeInfo; AIdentToInt: TIdentToInt;
   AIntToIdent: TIntToIdent);
 begin
@@ -11097,7 +11148,7 @@ end;
   TDatamodule
   ----------------------------------------------------------------------}
 
-Constructor TDataModule.Create(AOwner: TComponent);
+constructor TDataModule.Create(AOwner: TComponent);
 begin
   CreateNew(AOwner);
   if (ClassType <> TDataModule) and
@@ -11110,7 +11161,7 @@ begin
     end;
 end;
 
-Constructor TDataModule.CreateNew(AOwner: TComponent);
+constructor TDataModule.CreateNew(AOwner: TComponent);
 
 begin
   CreateNew(AOwner,0);
@@ -11124,13 +11175,18 @@ begin
     AddDataModule(Self);
 end;
 
-Procedure TDataModule.AfterConstruction;
+class constructor TDataModule.ClassCreate;
+begin
+  RegisterInitComponentHandler(TDataModule,@DefaultInitHandler);
+end;
+
+procedure TDataModule.AfterConstruction;
 begin
    If not OldCreateOrder then
      DoCreate;
 end;
 
-Procedure TDataModule.BeforeDestruction;
+procedure TDataModule.BeforeDestruction;
 begin
   Destroying;
   RemoveFixupReferences(Self, '');
@@ -11147,7 +11203,7 @@ begin
   inherited Destroy;
 end;
 
-Procedure TDataModule.DoCreate;
+procedure TDataModule.DoCreate;
 begin
   if Assigned(FOnCreate) then
     try
@@ -11158,7 +11214,7 @@ begin
     end;
 end;
 
-Procedure TDataModule.DoDestroy;
+procedure TDataModule.DoDestroy;
 begin
   if Assigned(FOnDestroy) then
     try
@@ -11214,112 +11270,63 @@ begin
     ApplicationHandleException(Self);
 end;
 
-Procedure TDataModule.ReadP(Reader: TReader);
+procedure TDataModule.ReadP(Reader: TReader);
 begin
   FDPPI := Reader.ReadInteger;
 end;
 
-Procedure TDataModule.ReadState(Reader: TReader);
+procedure TDataModule.ReadState(Reader: TReader);
 begin
   FOldOrder := false;
   inherited ReadState(Reader);
 end;
 
-Procedure TDataModule.ReadT(Reader: TReader);
+procedure TDataModule.ReadT(Reader: TReader);
 begin
   FDPos.Y := Reader.ReadInteger;
 end;
 
-Procedure TDataModule.WriteT(Writer: TWriter);
+procedure TDataModule.WriteT(Writer: TWriter);
 begin
   Writer.WriteInteger(FDPos.Y);
 end;
 
-Procedure TDataModule.ReadL(Reader: TReader);
+procedure TDataModule.ReadL(Reader: TReader);
 begin
   FDPos.X := Reader.ReadInteger;
 end;
 
-Procedure TDataModule.WriteL(Writer: TWriter);
+procedure TDataModule.WriteL(Writer: TWriter);
 begin
   Writer.WriteInteger(FDPos.X);
 end;
 
-Procedure TDataModule.ReadW(Reader: TReader);
+procedure TDataModule.ReadW(Reader: TReader);
 begin
   FDSIze.X := Reader.ReadInteger;
 end;
 
-Procedure TDataModule.WriteP(Writer: TWriter);
+procedure TDataModule.WriteP(Writer: TWriter);
 begin
   Writer.WriteInteger(FDPPI);
 end;
 
-Procedure TDataModule.WriteW(Writer: TWriter);
+procedure TDataModule.WriteW(Writer: TWriter);
 begin
   Writer.WriteInteger(FDSIze.X);
 end;
 
-Procedure TDataModule.ReadH(Reader: TReader);
+procedure TDataModule.ReadH(Reader: TReader);
 begin
   FDSIze.Y := Reader.ReadInteger;
 end;
 
-Procedure TDataModule.WriteH(Writer: TWriter);
+procedure TDataModule.WriteH(Writer: TWriter);
 begin
   Writer.WriteInteger(FDSIze.Y);
 end;
 
-function CreateComponentfromRes(const res : string; Inst : THandle; var Component : TComponent) : Boolean;
-
-var
-  ResStream : TResourceStream;
-
-  Src : TStream;
-  aInfo : TResourceInfo;
-
-begin
-  if Inst=0 then ;
-  result:=GetResourceInfo(Res,aInfo);
-  if Result then
-    begin
-    ResStream:=TResourceStream.Create(aInfo);
-    try
-      if Not FormResourceIsText then
-        Src:=ResStream
-      else
-        begin
-        Src:=TMemoryStream.Create;
-        ObjectTextToBinary(ResStream,Src);
-        Src.Position:=0;
-        end;
-      Component:=Src.ReadComponent(Component);
-    finally
-      if Src<>ResStream then
-        Src.Free;
-      ResStream.Free;
-    end;
-    end;
-end;
-
-function DefaultInitHandler(Instance: TComponent; RootAncestor: TClass): Boolean;
-
-  function doinit(_class : TClass) : boolean;
-    begin
-      result:=false;
-      if (_class.ClassType=TComponent) or (_class.ClassType=RootAncestor) then
-        exit;
-      result:=doinit(_class.ClassParent);
-      // Resources are written with their unit name
-      result:=CreateComponentfromRes(_class.UnitName,0,Instance) or result;
-    end;
-
-begin
-  result:=doinit(Instance.ClassType);
-end;
-
 initialization
-  RegisterInitComponentHandler(TDataModule,@DefaultInitHandler);
   ClassList:=TJSObject.New;
 end.
 

packages/rtl/sysutils.pas

@@ -58,13 +58,14 @@ type
 type
 
   { TFormatSettings }
+
   TFormatSettings = record
   strict private
     class function GetJSLocale: string; assembler; static;
     class function GetLocaleShortDayName(const ADayOfWeek: Integer; const ALocale: string): string; static;
-      class function GetLocaleDecimalSeparator(const ALocale: string): string; static;
+    class function GetLocaleDecimalSeparator(const ALocale: string): string; assembler; static;
-      class function GetLocaleLongMonthName(const AMonth: Integer; const ALocale: string): string; static;
+    class function GetLocaleLongMonthName(const AMonth: Integer; const ALocale: string): string; assembler; static;
-      class function GetLocaleLongDayName(const ADayOfWeek: Integer; const ALocale: string): string; static;
+    class function GetLocaleLongDayName(const ADayOfWeek: Integer; const ALocale: string): string; assembler; static;
     class function GetLocaleShortMonthName(const AMonth: Integer; const ALocale: string): string; static;
   public
     CurrencyDecimals: Byte;
@@ -94,6 +95,7 @@ type
     class function Create: TFormatSettings; overload; static;
     class function Create(const ALocale: string): TFormatSettings; overload; static;
     class function Invariant: TFormatSettings; static;
+    class constructor Init;
   end;
 
 
@@ -4961,6 +4963,27 @@ begin
     Result:='0'+Result;
 end;
 
+procedure InitGlobalFormatSettings;
+begin
+  // So the defaults are taken from FormatSettings.
+  {$WARN 5043 off}
+  FormatSettings:=TFormatSettings.Create;
+  TimeSeparator:=FormatSettings.TimeSeparator;
+  DateSeparator:=FormatSettings.DateSeparator;
+  ShortDateFormat:=FormatSettings.ShortDateFormat;
+  LongDateFormat:=FormatSettings.LongDateFormat;
+  ShortTimeFormat:=FormatSettings.ShortTimeFormat;
+  LongTimeFormat:=FormatSettings.LongTimeFormat;
+  DecimalSeparator:=FormatSettings.DecimalSeparator;
+  ThousandSeparator:=FormatSettings.ThousandSeparator;
+  TimeAMString:=FormatSettings.TimeAMString;
+  TimePMString:=FormatSettings.TimePMString;
+  CurrencyFormat:=FormatSettings.CurrencyFormat;
+  NegCurrFormat:=FormatSettings.NegCurrFormat;
+  CurrencyDecimals:=FormatSettings.CurrencyDecimals;
+  CurrencyString:=FormatSettings.CurrencyString;
+end;
+
 { TFormatSettings }
 
 class function TFormatSettings.Create: TFormatSettings;
@@ -4968,7 +4991,7 @@ begin
   Result := Create(GetJSLocale);
 end;
 
-class function TFormatSettings.Create(const ALocale: String): TFormatSettings;
+class function TFormatSettings.Create(const ALocale: string): TFormatSettings;
 begin
   Result.LongDayNames:=DefaultLongDayNames;
   Result.ShortDayNames:=DefaultShortDayNames;
@@ -5020,26 +5043,34 @@ begin
   Result.NegCurrFormat := 0;
 end;
 
+class constructor TFormatSettings.Init;
+begin
+  InitGlobalFormatSettings;
+end;
+
 class function TFormatSettings.GetJSLocale: string; assembler;
 asm
   return Intl.DateTimeFormat().resolvedOptions().locale
 end;
 
-class function TFormatSettings.GetLocaleDecimalSeparator(const ALocale: string): string; assembler;
+class function TFormatSettings.GetLocaleDecimalSeparator(const ALocale: string
+  ): string; assembler;
 asm
   var lNumber = 1.1;
   lNumber = lNumber.toLocaleString(ALocale).substring(1, 2);
   return lNumber;
 end;
 
-class function TFormatSettings.GetLocaleLongDayName(const ADayOfWeek: Integer; const ALocale: string): string; assembler;
+class function TFormatSettings.GetLocaleLongDayName(const ADayOfWeek: Integer;
+  const ALocale: string): string; assembler;
 asm
   var lBaseDate = new Date(2017, 0, 1); // Sunday
   lBaseDate.setDate(lBaseDate.getDate() + ADayOfWeek - 1);
   return lBaseDate.toLocaleDateString(ALocale, { weekday: 'long' });
 end;
 
-class function TFormatSettings.GetLocaleLongMonthName(const AMonth: Integer; const ALocale: string): string; assembler;
+class function TFormatSettings.GetLocaleLongMonthName(const AMonth: Integer;
+  const ALocale: string): string; assembler;
 asm
   var lBaseDate = new Date(2017, AMonth - 1, 1);
   return lBaseDate.toLocaleDateString(ALocale, { month: 'long' });
@@ -8692,7 +8723,6 @@ begin
   Result:=Self;
 end;
 
-
 Function TStringBuilder.Replace(const OldValue, NewValue: String): TStringBuilder;
 begin
   Result:=Replace(OldValue,NewValue,0,Length);
@@ -8707,7 +8737,6 @@ begin
   // No-op
 end;
 
-
 function TStringBuilder.ToString: String;
 begin
   Result:=ToString(0,Length);
@@ -8734,30 +8763,11 @@ begin
   System.Insert(New,FData,Index+1);
 end;
 
-
-
 initialization
-  {$WARN 5043 off}
   ShortMonthNames:=DefaultShortMonthNames;
   LongMonthNames:=DefaultLongMonthNames;
   ShortDayNames:=DefaultShortDayNames;
   LongDayNames:=DefaultLongDayNames;
-  FormatSettings:=TFormatSettings.Create;
-  // So the defaults are taken from FormatSettings.
-  TimeSeparator:=FormatSettings.TimeSeparator;
-  DateSeparator:=FormatSettings.DateSeparator;
-  ShortDateFormat:=FormatSettings.ShortDateFormat;
-  LongDateFormat:=FormatSettings.LongDateFormat;
-  ShortTimeFormat:=FormatSettings.ShortTimeFormat;
-  LongTimeFormat:=FormatSettings.LongTimeFormat;
-  DecimalSeparator:=FormatSettings.DecimalSeparator;
-  ThousandSeparator:=FormatSettings.ThousandSeparator;
-  TimeAMString:=FormatSettings.TimeAMString;
-  TimePMString:=FormatSettings.TimePMString;
-  CurrencyFormat:=FormatSettings.CurrencyFormat;
-  NegCurrFormat:=FormatSettings.NegCurrFormat;
-  CurrencyDecimals:=FormatSettings.CurrencyDecimals;
-  CurrencyString:=FormatSettings.CurrencyString;
 
 end.