Debugger: Configuration for value converter

components/lazdebuggers/lazdebuggerfp/fpdebugconvdebugforjson.lfm

@@ -0,0 +1,62 @@
+object JsonForDebugSettingsFrame: TJsonForDebugSettingsFrame
+  Left = 0
+  Height = 156
+  Top = 0
+  Width = 226
+  AutoSize = True
+  ChildSizing.TopBottomSpacing = 1
+  ChildSizing.VerticalSpacing = 1
+  ChildSizing.EnlargeHorizontal = crsScaleChilds
+  ChildSizing.Layout = cclLeftToRightThenTopToBottom
+  ChildSizing.ControlsPerLine = 2
+  ClientHeight = 156
+  ClientWidth = 226
+  TabOrder = 0
+  DesignLeft = 394
+  DesignTop = 60
+  object lblFuncName: TLabel
+    Left = 0
+    Height = 23
+    Top = 1
+    Width = 45
+    Caption = '----'
+  end
+  object edFuncName: TEdit
+    Left = 45
+    Height = 23
+    Top = 1
+    Width = 181
+    AutoSize = False
+    TabOrder = 0
+  end
+  object lblJsonAddress: TLabel
+    Left = 0
+    Height = 23
+    Top = 25
+    Width = 45
+    Caption = '----'
+  end
+  object edJsonAddress: TEdit
+    Left = 45
+    Height = 23
+    Top = 25
+    Width = 181
+    AutoSize = False
+    TabOrder = 1
+  end
+  object lblJsonTypename: TLabel
+    Left = 0
+    Height = 23
+    Top = 49
+    Width = 45
+    Caption = '----'
+  end
+  object edJsonTypename: TEdit
+    Left = 45
+    Height = 23
+    Top = 49
+    Width = 181
+    AutoSize = False
+    TabOrder = 2
+  end
+end

components/lazdebuggers/lazdebuggerfp/fpdebugconvdebugforjson.pas

@@ -0,0 +1,328 @@
+unit FpDebugConvDebugForJson;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  Classes, SysUtils, Forms, Controls, ExtCtrls, StdCtrls,
+  FpDebugStringConstants, FpDebugValueConvertors, FpDebugDebuggerBase,
+  LazDebuggerValueConverter, LazDebuggerIntfBaseTypes, FpDbgInfo, FpDbgClasses,
+  FpdMemoryTools, FpDbgCallContextInfo, FpErrorMessages, DbgIntfBaseTypes;
+
+type
+
+  { TJsonForDebugSettingsFrame }
+
+  TJsonForDebugSettingsFrame = class(TFrame, TLazDbgValueConverterSettingsFrameIntf)
+    edFuncName: TEdit;
+    edJsonAddress: TEdit;
+    edJsonTypename: TEdit;
+    lblFuncName: TLabel;
+    lblJsonAddress: TLabel;
+    lblJsonTypename: TLabel;
+  private
+
+  protected
+    procedure ReadFrom(AConvertor: TLazDbgValueConverterIntf);
+    function WriteTo(AConvertor: TLazDbgValueConverterIntf): Boolean;
+    function GetFrame: TObject;
+  public
+    constructor Create(TheOwner: TComponent); override;
+  end;
+
+  { TFpDbgValueConverterJsonForDebug }
+
+  TFpDbgValueConverterJsonForDebug = class(TFpDbgValueConverter)
+  private
+    FFunctionName: String;
+    FJsonAddressKey: String;
+    FJsonTypenameKey: String;
+    function FunctionNameIsStored: Boolean;
+    function GetProcAddr(AnFpDebugger: TFpDebugDebuggerBase; AnExpressionScope: TFpDbgSymbolScope): TDBGPtr;
+    function JsonAddressKeyIsStored: Boolean;
+  protected
+    function GetSettingsFrame: TLazDbgValueConverterSettingsFrameIntf; override;
+    procedure Init; override;
+  public
+    class function GetName: String; override;
+    class function GetSupportedKinds: TDbgSymbolKinds; override;
+    procedure Assign(ASource: TFpDbgValueConverter); override;
+    function ConvertValue(ASourceValue: TFpValue;
+                          AnFpDebugger: TFpDebugDebuggerBase;
+                          AnExpressionScope: TFpDbgSymbolScope
+                         ): TFpValue; override;
+
+  published
+    property FunctionName: String read FFunctionName write FFunctionName stored FunctionNameIsStored;
+    property JsonAddressKey: String read FJsonAddressKey write FJsonAddressKey stored JsonAddressKeyIsStored;
+    property JsonTypenameKey: String read FJsonTypenameKey write FJsonTypenameKey;
+  end;
+
+
+implementation
+
+{$R *.lfm}
+
+{ TJsonForDebugSettingsFrame }
+
+procedure TJsonForDebugSettingsFrame.ReadFrom(
+  AConvertor: TLazDbgValueConverterIntf);
+var
+  c: TFpDbgValueConverterJsonForDebug;
+begin
+  if not (AConvertor.GetObject is TFpDbgValueConverterJsonForDebug) then
+    exit;
+
+  c := TFpDbgValueConverterJsonForDebug(AConvertor.GetObject);
+
+  edFuncName.Text := c.FFunctionName;
+  edJsonAddress.Text := c.FJsonAddressKey;
+  edJsonTypename.Text := c.FJsonTypenameKey;
+end;
+
+function TJsonForDebugSettingsFrame.WriteTo(
+  AConvertor: TLazDbgValueConverterIntf): Boolean;
+var
+  c: TFpDbgValueConverterJsonForDebug;
+begin
+  Result := False;
+  if not (AConvertor.GetObject is TFpDbgValueConverterJsonForDebug) then
+    exit;
+
+  c := TFpDbgValueConverterJsonForDebug(AConvertor.GetObject);
+
+  Result :=
+    (c.FFunctionName    <> trim(edFuncName.Text)) or
+    (c.FJsonAddressKey  <> trim(edJsonAddress.Text)) or
+    (c.FJsonTypenameKey <> trim(edJsonTypename.Text));
+
+  c.FFunctionName    := trim(edFuncName.Text);
+  c.FJsonAddressKey  := trim(edJsonAddress.Text);
+  c.FJsonTypenameKey := trim(edJsonTypename.Text);
+end;
+
+function TJsonForDebugSettingsFrame.GetFrame: TObject;
+begin
+  Result := Self;
+end;
+
+constructor TJsonForDebugSettingsFrame.Create(TheOwner: TComponent);
+begin
+  inherited Create(TheOwner);
+  lblFuncName.Caption := drsFunctionName;
+  lblJsonAddress.Caption := drsKeyForAddress;
+  lblJsonTypename.Caption := drsKeyForTypename;
+end;
+
+{ TFpDbgValueConverterJsonForDebug }
+
+function TFpDbgValueConverterJsonForDebug.GetProcAddr(
+  AnFpDebugger: TFpDebugDebuggerBase; AnExpressionScope: TFpDbgSymbolScope
+  ): TDBGPtr;
+var
+  CurProc: TDbgProcess;
+  ProcSymVal: TFpValue;
+  ProcSym: TFpSymbol;
+begin
+  Result := AnFpDebugger.GetCachedData(pointer(Self));
+  if Result <> 0 then
+    exit;
+
+  CurProc := AnFpDebugger.DbgController.CurrentProcess;
+  if CurProc = nil then
+    exit;
+
+  ProcSymVal := AnExpressionScope.FindSymbol(FFunctionName);
+  if ProcSymVal <> nil then begin
+    if (ProcSymVal.Kind = skProcedure) and IsTargetAddr(ProcSymVal.DataAddress)
+    //and
+    //   (ProcSymVal.NestedSymbolCount = 3)
+    then begin
+      Result := ProcSymVal.DataAddress.Address;
+      AnFpDebugger.SetCachedData(pointer(TFpDbgValueConverterJsonForDebug), Result);
+      ProcSymVal.ReleaseReference;
+      exit;
+    end;
+    Result := 0;
+    Result := ProcSymVal.DataAddress.Address;
+  end;
+
+  ProcSym := CurProc.FindProcSymbol(FFunctionName);
+  if (ProcSym <> nil) and (ProcSym.Kind = skProcedure) and
+     (IsTargetAddr(ProcSym.Address))
+  then begin
+    Result := ProcSym.Address.Address;
+    AnFpDebugger.SetCachedData(pointer(TFpDbgValueConverterJsonForDebug), Result);
+  end;
+  ProcSym.ReleaseReference;
+end;
+
+function TFpDbgValueConverterJsonForDebug.JsonAddressKeyIsStored: Boolean;
+begin
+  Result := FJsonAddressKey <> 'Address';
+end;
+
+function TFpDbgValueConverterJsonForDebug.FunctionNameIsStored: Boolean;
+begin
+  Result := FFunctionName <> 'JsonForDebug';
+end;
+
+function TFpDbgValueConverterJsonForDebug.GetSettingsFrame: TLazDbgValueConverterSettingsFrameIntf;
+begin
+  Result := TJsonForDebugSettingsFrame.Create(nil);
+end;
+
+procedure TFpDbgValueConverterJsonForDebug.Init;
+begin
+  inherited Init;
+  FFunctionName := 'JsonForDebug';
+  FJsonAddressKey := 'Address'
+end;
+
+class function TFpDbgValueConverterJsonForDebug.GetName: String;
+begin
+  Result := drsCallJsonForDebug;
+end;
+
+class function TFpDbgValueConverterJsonForDebug.GetSupportedKinds: TDbgSymbolKinds;
+begin
+  Result := [low(Result)..high(Result)];
+end;
+
+procedure TFpDbgValueConverterJsonForDebug.Assign(ASource: TFpDbgValueConverter);
+begin
+  inherited Assign(ASource);
+  if ASource is TFpDbgValueConverterJsonForDebug then begin
+    FFunctionName    := TFpDbgValueConverterJsonForDebug(ASource).FFunctionName;
+    FJsonAddressKey  := TFpDbgValueConverterJsonForDebug(ASource).FJsonAddressKey;
+    FJsonTypenameKey := TFpDbgValueConverterJsonForDebug(ASource).FJsonTypenameKey;
+  end;
+end;
+
+function TFpDbgValueConverterJsonForDebug.ConvertValue(ASourceValue: TFpValue;
+  AnFpDebugger: TFpDebugDebuggerBase; AnExpressionScope: TFpDbgSymbolScope
+  ): TFpValue;
+var
+  CurProccess: TDbgProcess;
+  TpName, JsonText: String;
+  ProcAddr, SetLenProc, DecRefProc,
+  TpNameAddr, TpNewNameAddr, TpNameRefAddr, TextAddr, TextRefAddr: TDbgPtr;
+  CallContext: TFpDbgInfoCallContext;
+  r: Boolean;
+begin
+  Result := nil;
+
+  if (not (svfAddress in ASourceValue.FieldFlags)) or
+     (not IsTargetAddr(ASourceValue.Address))
+  then begin
+    SetError(CreateError(fpErrAnyError, ['Value not in memory']));
+    exit;
+  end;
+
+  TpName := '';
+  if ASourceValue.TypeInfo <> nil then
+    TpName := ASourceValue.TypeInfo.Name;
+
+  if TpName = '' then begin
+    SetError(CreateError(fpErrAnyError, ['no typename']));
+    exit;
+  end;
+
+  ProcAddr := GetProcAddr(AnFpDebugger, AnExpressionScope);
+  if ProcAddr = 0 then begin
+    SetError(CreateError(fpErrAnyError, ['JsonForDebug not found']));
+    exit;
+  end;
+
+  CurProccess := AnFpDebugger.DbgController.CurrentProcess;
+  SetLenProc := AnFpDebugger.GetCached_FPC_ANSISTR_SETLENGTH;
+  DecRefProc := AnFpDebugger.GetCached_FPC_ANSISTR_DECR_REF;
+  if (SetLenProc = 0) or (DecRefProc = 0) or (CurProccess = nil)
+  then begin
+    SetError(CreateError(fpErrAnyError, ['internal error']));
+    exit;
+  end;
+
+
+  TpNameAddr := 0;
+  TpNewNameAddr := 0;
+  TpNameRefAddr := 0;
+  TextAddr := 0;
+  TextRefAddr := 0;
+  try
+    if (not AnFpDebugger.CreateAnsiStringInTarget(SetLenProc, TpNameAddr, TpName, AnExpressionScope.LocationContext)) or
+       (TpNameAddr = 0)
+    then begin
+      TpNameAddr := 0;
+      SetError(CreateError(fpErrAnyError, ['failed to set param']));
+      exit;
+    end;
+
+
+    CallContext := AnFpDebugger.DbgController.Call(TargetLoc(ProcAddr), AnExpressionScope.LocationContext,
+      AnFpDebugger.MemReader, AnFpDebugger.MemConverter);
+
+    if (not CallContext.AddOrdinalParam(ASourceValue.Address.Address)) or
+       (not CallContext.AddOrdinalViaRefAsParam(TpNameAddr, TpNameRefAddr)) or
+       (not CallContext.AddOrdinalViaRefAsParam(0, TextRefAddr))
+    then begin
+      SetError(CreateError(fpErrAnyError, ['failed to set param']));
+      exit;
+    end;
+
+    CallContext.FinalizeParams; // force the string as first param (32bit) // TODO
+
+    AnFpDebugger.DbgController.ProcessLoop;
+
+    if not CallContext.IsValid then begin
+      if (IsError(CallContext.LastError)) then
+        SetError(CallContext.LastError)
+      else
+      if (CallContext.Message <> '') then
+        SetError(CreateError(fpErrAnyError, [CallContext.Message]));
+      exit;
+    end;
+
+    r := True;
+    if not CurProccess.ReadAddress(TpNameRefAddr, TpNewNameAddr) then begin
+      r := False;
+      TpNewNameAddr := 0;
+    end;
+    if not CurProccess.ReadAddress(TextRefAddr, TextAddr) then begin
+      r := False;
+      TextAddr:= 0;
+    end;
+
+    if not AnFpDebugger.ReadAnsiStringFromTarget(TpNewNameAddr, TpName) then
+      r := False;
+    if not AnFpDebugger.ReadAnsiStringFromTarget(TextAddr, JsonText) then
+      r := False;
+
+    if not r then begin
+      SetError(CreateError(fpErrAnyError, ['failed to get result']));
+      exit;
+    end;
+
+
+    AnFpDebugger.DbgController.AbortCurrentCommand;
+    CallContext.ReleaseReference;
+
+    Result := TFpValueConstString.Create(JsonText);
+    TFpValueConstString(Result).SetTypeName(TpName);
+
+  finally
+    if TpNewNameAddr <> 0 then
+      TpNameAddr := TpNewNameAddr;
+    if TpNameAddr <> 0 then
+      AnFpDebugger.CallTargetFuncStringDecRef(DecRefProc, TpNameAddr, AnExpressionScope.LocationContext);
+    if TextAddr <> 0 then
+      AnFpDebugger.CallTargetFuncStringDecRef(DecRefProc, TextAddr, AnExpressionScope.LocationContext);
+  end;
+end;
+
+initialization
+  ValueConverterClassList.Add(TFpDbgValueConverterJsonForDebug);
+
+end.
+

components/lazdebuggers/lazdebuggerfp/fpdebugdebugger.pas

@@ -41,7 +41,9 @@ uses
   {$IFDEF FPDEBUG_THREAD_CHECK} FpDbgCommon, {$ENDIF}
   FpDbgClasses, FpDbgInfo, FpErrorMessages, FpPascalBuilder, FpdMemoryTools,
   FpPascalParser, FPDbgController, FpDbgDwarfDataClasses, FpDbgDwarfFreePascal,
-  FpDbgDwarf, FpDbgUtil;
+  FpDbgDwarf, FpDbgUtil,
+  // use converters
+  FpDebugValueConvertors, FpDebugConvDebugForJson;
 
 type
 

components/lazdebuggers/lazdebuggerfp/fpdebugstringconstants.pas

@@ -0,0 +1,21 @@
+unit FpDebugStringConstants;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  Classes, SysUtils;
+
+resourcestring
+  drsKeyForAddress = 'Key for Address';
+  drsKeyForTypename = 'Key for Typename';
+
+  drsFunctionName = 'Function name';
+  drsCallSysVarToLStr = 'Call SysVarToLStr';
+  drsCallJsonForDebug = 'Call JsonForDebug';
+
+implementation
+
+end.
+

components/lazdebuggers/lazdebuggerfp/fpdebugvalueconvertors.pas

@@ -6,9 +6,9 @@ interface
 
 uses
   Classes, SysUtils, fgl, FpDbgInfo, FpdMemoryTools, FpDbgCallContextInfo,
-  FpPascalBuilder, FpErrorMessages, FpDbgClasses, FpDbgUtil,
+  FpPascalBuilder, FpErrorMessages, FpDbgClasses, FpDbgUtil, DbgIntfBaseTypes,
-  DbgIntfBaseTypes, lazCollections, LazClasses, LCLProc, StrUtils,
+  lazCollections, LazClasses, LCLProc, StrUtils, FpDebugDebuggerBase, FpDebugStringConstants,
-  FpDebugDebuggerBase, LazDebuggerValueConverter, LazDebuggerIntfBaseTypes;
+  LazDebuggerValueConverter, LazDebuggerIntfBaseTypes;
 
 type
   TDbgSymbolKinds = set of TDbgSymbolKind;
@@ -25,10 +25,13 @@ type
     FLastErrror: TFpError;
   protected
     function GetObject: TObject;
+    function GetSettingsFrame: TLazDbgValueConverterSettingsFrameIntf; virtual;
+    procedure Init; virtual;
   public
     class function GetName: String; virtual; abstract;
     class function GetSupportedKinds: TDbgSymbolKinds; virtual;
-    procedure Assign(ASource: TFpDbgValueConverter);
+    constructor Create; virtual;
+    procedure Assign(ASource: TFpDbgValueConverter); virtual;
     function CreateCopy: TFpDbgValueConverter; virtual;
     function ConvertValue(ASourceValue: TFpValue;
                           AnFpDebugger: TFpDebugDebuggerBase;
@@ -55,7 +58,8 @@ type
     FMatchTypeNames: TStrings;
     procedure SetConverter(AValue: TFpDbgValueConverter);
   protected
-    function GetBackendSpecificObject: TObject;
+    function GetBackendSpecificObject: TObject; deprecated;
+    function GetConverter: TLazDbgValueConverterIntf;
   public
     constructor Create(AConverter: TFpDbgValueConverter);
     destructor Destroy; override;
@@ -98,21 +102,6 @@ type
                          ): TFpValue; override;
   end;
 
-  { TFpDbgValueConverterJsonForDebug }
-
-  TFpDbgValueConverterJsonForDebug = class(TFpDbgValueConverter)
-  private
-    function GetProcAddr(AnFpDebugger: TFpDebugDebuggerBase; AnExpressionScope: TFpDbgSymbolScope): TDBGPtr;
-  public
-    class function GetName: String; override;
-    class function GetSupportedKinds: TDbgSymbolKinds; override;
-    function ConvertValue(ASourceValue: TFpValue;
-                          AnFpDebugger: TFpDebugDebuggerBase;
-                          AnExpressionScope: TFpDbgSymbolScope
-                         ): TFpValue; override;
-  end;
-
-
 function ValueConverterClassList: TFpDbgValueConverterClassList;
 function ValueConverterConfigList: TFpDbgConverterConfigList;
 
@@ -167,11 +156,27 @@ begin
   Result := Self;
 end;
 
+function TFpDbgValueConverter.GetSettingsFrame: TLazDbgValueConverterSettingsFrameIntf;
+begin
+  Result := nil;
+end;
+
+procedure TFpDbgValueConverter.Init;
+begin
+  //
+end;
+
 class function TFpDbgValueConverter.GetSupportedKinds: TDbgSymbolKinds;
 begin
   Result := [low(TDbgSymbolKinds)..high(TDbgSymbolKinds)];
 end;
 
+constructor TFpDbgValueConverter.Create;
+begin
+  inherited Create;
+  Init;
+end;
+
 procedure TFpDbgValueConverter.Assign(ASource: TFpDbgValueConverter);
 begin
   //
@@ -193,6 +198,11 @@ begin
   Result := Self;
 end;
 
+function TFpDbgConverterConfig.GetConverter: TLazDbgValueConverterIntf;
+begin
+  Result := FConverter;
+end;
+
 function TFpDbgConverterConfig.CreateCopy: TFpDbgConverterConfig;
 begin
   Result := TFpDbgConverterConfigClass(ClassType).Create(nil);
@@ -223,9 +233,6 @@ begin
 end;
 
 function TFpDbgConverterConfig.CheckMatch(AValue: TFpValue): Boolean;
-var
-  t: TFpSymbol;
-  TpName: String;
 begin
   Result := (AValue.Kind in (FMatchKinds * Converter.GetSupportedKinds)) and
             CheckTypeMatch(AValue);
@@ -412,7 +419,7 @@ end;
 
 class function TFpDbgValueConverterVariantToLStr.GetName: String;
 begin
-  Result := 'Call SysVarToLStr';
+  Result := drsCallSysVarToLStr;
 end;
 
 class function TFpDbgValueConverterVariantToLStr.GetSupportedKinds: TDbgSymbolKinds;
@@ -540,181 +547,8 @@ begin
   end;
 end;
 
-{ TFpDbgValueConverterJsonForDebug }
-
-function TFpDbgValueConverterJsonForDebug.GetProcAddr(
-  AnFpDebugger: TFpDebugDebuggerBase; AnExpressionScope: TFpDbgSymbolScope
-  ): TDBGPtr;
-var
-  CurProc: TDbgProcess;
-  ProcSymVal: TFpValue;
-  ProcSym: TFpSymbol;
-begin
-  Result := AnFpDebugger.GetCachedData(pointer(TFpDbgValueConverterJsonForDebug));
-  if Result <> 0 then
-    exit;
-
-  CurProc := AnFpDebugger.DbgController.CurrentProcess;
-  if CurProc = nil then
-    exit;
-
-  ProcSymVal := AnExpressionScope.FindSymbol('JsonForDebug');
-  if ProcSymVal <> nil then begin
-    if (ProcSymVal.Kind = skProcedure) and IsTargetAddr(ProcSymVal.DataAddress) then begin
-      Result := ProcSymVal.DataAddress.Address;
-      AnFpDebugger.SetCachedData(pointer(TFpDbgValueConverterJsonForDebug), Result);
-      ProcSymVal.ReleaseReference;
-      exit;
-    end;
-    Result := 0;
-    Result := ProcSymVal.DataAddress.Address;
-  end;
-
-  ProcSym := CurProc.FindProcSymbol('JsonForDebug');
-  if (ProcSym <> nil) and (ProcSym.Kind = skProcedure) and
-     (IsTargetAddr(ProcSym.Address))
-  then begin
-    Result := ProcSym.Address.Address;
-    AnFpDebugger.SetCachedData(pointer(TFpDbgValueConverterJsonForDebug), Result);
-  end;
-  ProcSym.ReleaseReference;
-end;
-
-class function TFpDbgValueConverterJsonForDebug.GetName: String;
-begin
-  Result := 'Call JsonForDebug';
-end;
-
-class function TFpDbgValueConverterJsonForDebug.GetSupportedKinds: TDbgSymbolKinds;
-begin
-  Result := [low(Result)..high(Result)];
-end;
-
-function TFpDbgValueConverterJsonForDebug.ConvertValue(ASourceValue: TFpValue;
-  AnFpDebugger: TFpDebugDebuggerBase; AnExpressionScope: TFpDbgSymbolScope
-  ): TFpValue;
-var
-  CurProccess: TDbgProcess;
-  TpName, JsonText: String;
-  ProcAddr, SetLenProc, DecRefProc,
-  TpNameAddr, TpNewNameAddr, TpNameRefAddr, TextAddr, TextRefAddr: TDbgPtr;
-  CallContext: TFpDbgInfoCallContext;
-  r: Boolean;
-  AddrSize: Integer;
-begin
-  Result := nil;
-
-  if (not (svfAddress in ASourceValue.FieldFlags)) or
-     (not IsTargetAddr(ASourceValue.Address))
-  then begin
-    SetError(CreateError(fpErrAnyError, ['Value not in memory']));
-    exit;
-  end;
-
-  TpName := '';
-  if ASourceValue.TypeInfo <> nil then
-    TpName := ASourceValue.TypeInfo.Name;
-
-  if TpName = '' then begin
-    SetError(CreateError(fpErrAnyError, ['no typename']));
-    exit;
-  end;
-
-  ProcAddr := GetProcAddr(AnFpDebugger, AnExpressionScope);
-  if ProcAddr = 0 then begin
-    SetError(CreateError(fpErrAnyError, ['JsonForDebug not found']));
-    exit;
-  end;
-
-  CurProccess := AnFpDebugger.DbgController.CurrentProcess;
-  SetLenProc := AnFpDebugger.GetCached_FPC_ANSISTR_SETLENGTH;
-  DecRefProc := AnFpDebugger.GetCached_FPC_ANSISTR_DECR_REF;
-  if (SetLenProc = 0) or (DecRefProc = 0) or (CurProccess = nil)
-  then begin
-    SetError(CreateError(fpErrAnyError, ['internal error']));
-    exit;
-  end;
-
-
-  TpNameAddr := 0;
-  TpNewNameAddr := 0;
-  TpNameRefAddr := 0;
-  TextAddr := 0;
-  TextRefAddr := 0;
-  try
-    if (not AnFpDebugger.CreateAnsiStringInTarget(SetLenProc, TpNameAddr, TpName, AnExpressionScope.LocationContext)) or
-       (TpNameAddr = 0)
-    then begin
-      TpNameAddr := 0;
-      SetError(CreateError(fpErrAnyError, ['failed to set param']));
-      exit;
-    end;
-
-
-    CallContext := AnFpDebugger.DbgController.Call(TargetLoc(ProcAddr), AnExpressionScope.LocationContext,
-      AnFpDebugger.MemReader, AnFpDebugger.MemConverter);
-
-    if (not CallContext.AddOrdinalParam(ASourceValue.Address.Address)) or
-       (not CallContext.AddOrdinalViaRefAsParam(TpNameAddr, TpNameRefAddr)) or
-       (not CallContext.AddOrdinalViaRefAsParam(0, TextRefAddr))
-    then begin
-      SetError(CreateError(fpErrAnyError, ['failed to set param']));
-      exit;
-    end;
-
-    CallContext.FinalizeParams; // force the string as first param (32bit) // TODO
-
-    AnFpDebugger.DbgController.ProcessLoop;
-
-    if not CallContext.IsValid then begin
-      if (IsError(CallContext.LastError)) then
-        SetError(CallContext.LastError)
-      else
-      if (CallContext.Message <> '') then
-        SetError(CreateError(fpErrAnyError, [CallContext.Message]));
-      exit;
-    end;
-
-    r := True;
-    if not CurProccess.ReadAddress(TpNameRefAddr, TpNewNameAddr) then begin
-      r := False;
-      TpNewNameAddr := 0;
-    end;
-    if not CurProccess.ReadAddress(TextRefAddr, TextAddr) then begin
-      r := False;
-      TextAddr:= 0;
-    end;
-
-    if not AnFpDebugger.ReadAnsiStringFromTarget(TpNewNameAddr, TpName) then
-      r := False;
-    if not AnFpDebugger.ReadAnsiStringFromTarget(TextAddr, JsonText) then
-      r := False;
-
-    if not r then begin
-      SetError(CreateError(fpErrAnyError, ['failed to get result']));
-      exit;
-    end;
-
-
-    AnFpDebugger.DbgController.AbortCurrentCommand;
-    CallContext.ReleaseReference;
-
-    Result := TFpValueConstString.Create(JsonText);
-    TFpValueConstString(Result).SetTypeName(TpName);
-
-  finally
-    if TpNewNameAddr <> 0 then
-      TpNameAddr := TpNewNameAddr;
-    if TpNameAddr <> 0 then
-      AnFpDebugger.CallTargetFuncStringDecRef(DecRefProc, TpNameAddr, AnExpressionScope.LocationContext);
-    if TextAddr <> 0 then
-      AnFpDebugger.CallTargetFuncStringDecRef(DecRefProc, TextAddr, AnExpressionScope.LocationContext);
-  end;
-end;
-
 initialization
   ValueConverterClassList.Add(TFpDbgValueConverterVariantToLStr);
-  ValueConverterClassList.Add(TFpDbgValueConverterJsonForDebug);
 
 finalization;
   FreeAndNil(TheValueConverterClassList);

components/lazdebuggers/lazdebuggerfp/lazdebuggerfp.lpk

@@ -48,6 +48,14 @@
         <Filename Value="fpdebuggerresultdata.pas"/>
         <UnitName Value="FpDebuggerResultData"/>
       </Item>
+      <Item>
+        <Filename Value="fpdebugconvdebugforjson.pas"/>
+        <UnitName Value="FpDebugConvDebugForJson"/>
+      </Item>
+      <Item>
+        <Filename Value="fpdebugstringconstants.pas"/>
+        <UnitName Value="FpDebugStringConstants"/>
+      </Item>
     </Files>
     <RequiredPkgs>
       <Item>

components/lazdebuggers/lazdebuggerfp/lazdebuggerfp.pas

@@ -10,7 +10,7 @@ interface
 uses
   FpDebugDebugger, FpDebugDebuggerUtils, FpDebugDebuggerWorkThreads, 
   FpDebugValueConvertors, FpDebugDebuggerBase, FpDebuggerResultData, 
-  LazarusPackageIntf;
+  FpDebugConvDebugForJson, FpDebugStringConstants, LazarusPackageIntf;
 
 implementation
 

components/lazdebuggers/lazdebuggerintf/lazdebuggervalueconverter.pas

@@ -9,17 +9,28 @@ uses
   Classes, SysUtils;
 
 type
+  TLazDbgValueConverterIntf = interface;
+
+  TLazDbgValueConverterSettingsFrameIntf = interface
+    procedure ReadFrom(AConvertor: TLazDbgValueConverterIntf);
+    function WriteTo(AConvertor: TLazDbgValueConverterIntf): Boolean;
+
+    function GetFrame: TObject;  // TFrame
+    procedure Free;
+  end;
 
   TLazDbgValueConverterIntf = interface
     procedure AddReference;
     procedure ReleaseReference;
     function GetObject: TObject;
+    function GetSettingsFrame: TLazDbgValueConverterSettingsFrameIntf;
   end;
 
   TLazDbgValueConvertSelectorIntf = interface
     procedure AddFreeNotification(ANotification: TNotifyEvent);
     procedure RemoveFreeNotification(ANotification: TNotifyEvent);
-    function GetBackendSpecificObject: TObject;
+    function GetConverter: TLazDbgValueConverterIntf;
+    function GetBackendSpecificObject: TObject; deprecated;
   end;
 
 

components/lazdebuggers/lazdebugtestbase/ttestdebuggerclasses.pas

@@ -6,7 +6,8 @@ interface
 
 uses
   Classes, SysUtils, DbgIntfDebuggerBase, IdeDebuggerBase, Debugger,
-  IdeDebuggerWatchResult, LazDebuggerIntf, LazDebuggerIntfBaseTypes;
+  IdeDebuggerWatchResult, LazDebuggerIntf, LazDebuggerIntfBaseTypes,
+  LazDebuggerValueConverter;
 
 type
 
@@ -90,7 +91,7 @@ type
     procedure RemoveNotification(AnEventType: TWatcheEvaluateEvent;
       AnEvent: TNotifyEvent);
     function ResData: TLzDbgWatchDataIntf;
-    function GetFpDbgConverter: TObject;
+    function GetFpDbgConverter: TLazDbgValueConvertSelectorIntf;
   protected
     procedure RequestData;
     function GetTypeInfo: TDBGType; override;
@@ -428,7 +429,7 @@ begin
   Result := FCurrentResData;
 end;
 
-function TTestWatchValue.GetFpDbgConverter: TObject;
+function TTestWatchValue.GetFpDbgConverter: TLazDbgValueConvertSelectorIntf;
 begin
   Result := nil;
 end;

ide/packages/idedebugger/idedebuggerbase.pas

@@ -8,7 +8,8 @@ uses
   Classes, SysUtils, LazClasses, LazLoggerBase, IdeDebuggerWatchResult,
   IdeDebuggerFpDbgValueConv, IdeDebuggerWatchResultJSon, DbgIntfDebuggerBase,
   DbgIntfMiscClasses, LazDebuggerIntf, LazDebuggerTemplate,
-  LazDebuggerIntfBaseTypes, FpDebugValueConvertors;
+  LazDebuggerIntfBaseTypes, LazDebuggerValueConverter, FpDebugValueConvertors,
+  FpDebugConvDebugForJson;
 
 type
 
@@ -245,36 +246,55 @@ function TWatchValue.GetResultData: TWatchResultData;
     Result := True;
   end;
 
+var
+  UsedConv: TLazDbgValueConverterIntf;
+  SrcData: TWatchResultData;
+
+  function CreateJson: TWatchResultDataJSon;
+  begin
+    Result := TWatchResultDataJSon.Create(SrcData.AsString);
+    Result.SetTypeName(SrcData.TypeName);
+    if SrcData.HasDataAddress then
+      Result.SetDataAddress(SrcData.DataAddress);
+    if (Result.Count > 0) or (Result.FieldCount > 0) then
+      FResultDataContent := rdcJSon;
+    if (UsedConv <> nil) and (UsedConv.GetObject is TFpDbgValueConverterJsonForDebug)
+    then begin
+      Result.JsonAddressKey  := TFpDbgValueConverterJsonForDebug(UsedConv.GetObject).JsonAddressKey;
+      Result.JsonTypenameKey := TFpDbgValueConverterJsonForDebug(UsedConv.GetObject).JsonTypenameKey;
+    end;
+  end;
+
 begin
-  Result := FResultData;
-
-  if (FResultDataContent = rdcNotSpecial) or (Result = nil) then
-    exit;
-
   if FResultDataSpecialised <> nil then begin
     Result := FResultDataSpecialised;
     exit;
   end;
 
-  if (Result.ValueKind = rdkConvertRes) and (Result.FieldCount > 0) and
+  Result := FResultData;
-     (Result.Fields[0].Field.ValueKind <> rdkError)
+  if (FResultDataContent = rdcNotSpecial) or (Result = nil) then
-  then
+    exit;
-    Result := Result.Fields[0].Field;
+
+  SrcData := FResultData;
+  UsedConv := nil;
+  if (SrcData.ValueKind = rdkConvertRes) and (SrcData.FieldCount > 0) and
+     (SrcData.Fields[0].Field <> nil) and
+     (SrcData.Fields[0].Field.ValueKind <> rdkError)
+  then begin
+    SrcData := SrcData.Fields[0].Field;
+    UsedConv := FResultData.BackendValueHandler;
+  end;
 
   case FResultDataContent of
-    rdcJSon:
+    rdcJSon: begin
-      FResultDataSpecialised := TWatchResultDataJSon.Create(Result.AsString);
+        FResultDataSpecialised := CreateJson;
+      end;
 
     else begin
       FResultDataContent := rdcNotSpecial;
 
-      if (Result.ValueKind in [rdkString, rdkPrePrinted]) and (IsMaybeJson(Result.AsString)) then begin
+      if (SrcData.ValueKind in [rdkString, rdkPrePrinted]) and (IsMaybeJson(SrcData.AsString)) then begin
-        FResultDataSpecialised := TWatchResultDataJSon.Create(Result.AsString);
+        FResultDataSpecialised := CreateJson;
-        TWatchResultDataJSon(FResultDataSpecialised).SetTypeName(FResultData.TypeName);
-        if FResultData.HasDataAddress then
-          TWatchResultDataJSon(FResultDataSpecialised).SetDataAddress(FResultData.DataAddress);
-        if (FResultDataSpecialised.Count > 0) or (FResultDataSpecialised.FieldCount > 0) then
-          FResultDataContent := rdcJSon;
       end;
 
       if FResultDataContent = rdcNotSpecial then

ide/packages/idedebugger/idedebuggerwatchresult.pas

@@ -698,7 +698,7 @@ type
 //    FDataFlags: TWatchResultDataFlags;
   //  Addr: TDbgPtr;
   // MemDump
-    function GetBackendValueHandler: TLazDbgValueConverterIntf;
+    function GetBackendValueHandler: TLazDbgValueConverterIntf; virtual;
     function GetClassID: TWatchResultDataClassID; virtual; //abstract;
   protected
     class function GetStorageClass: TWatchResultStorageClass; virtual; abstract;
@@ -721,6 +721,7 @@ type
     procedure ClearData; virtual; abstract;
   protected
     function GetValueKind: TWatchResultDataKind; virtual; //abstract;
+    function GetTypeName: String; virtual;
     function GetAsString: String; virtual; abstract;
     function GetAsDesc: String; virtual; abstract;
     function GetAsWideString: WideString; virtual; abstract;
@@ -776,7 +777,7 @@ type
   function GetEnumerator: TWatchResultDataEnumerator; virtual;
   public
     property ValueKind: TWatchResultDataKind read GetValueKind;
-    property TypeName: String read FTypeName;
+    property TypeName: String read GetTypeName;
 
     property AsString: String read GetAsString;
     property AsDesc: String read GetAsDesc;
@@ -1048,6 +1049,7 @@ type
   protected
     function GetHasDataAddress: Boolean; override;
     function GetDataAddress: TDBGPtr; override;
+    procedure SetDataAddress(AnAddr: TDbgPtr); override;
   public
     constructor Create(AStringVal: String);
   end;
@@ -1444,7 +1446,7 @@ type
   private
     function GetClassID: TWatchResultDataClassID; override;
   protected
-    function GetBackendValueHandler: TLazDbgValueConverterIntf;
+    function GetBackendValueHandler: TLazDbgValueConverterIntf; override;
   public
     constructor Create(AHandler: TLazDbgValueConverterIntf);
   end;
@@ -2582,6 +2584,11 @@ begin
   Result := wdPrePrint;
 end;
 
+function TWatchResultData.GetTypeName: String;
+begin
+  Result := FTypeName;
+end;
+
 function TWatchResultData.GetBackendValueHandler: TLazDbgValueConverterIntf;
 begin
   Result := nil;
@@ -3462,6 +3469,11 @@ begin
   Result := FData.GetDataAddress;
 end;
 
+procedure TWatchResultDataString.SetDataAddress(AnAddr: TDbgPtr);
+begin
+  FData.FAddress := AnAddr;
+end;
+
 constructor TWatchResultDataString.Create(AStringVal: String);
 begin
   inherited Create;

ide/packages/idedebugger/idedebuggerwatchresultjson.pas

@@ -17,12 +17,15 @@ type
     FInternalJSon: TJSONData;
     FIndex: Integer;
     FCurData: TWatchResultDataJSonBase;
+    FJsonAddressKey: String;
+    FJsonTypenameKey: String;
 
     function JSon: TJSONData; inline;
   protected
     function GetAsString: String; override;
     function GetDataAddress: TDBGPtr; override;
     function GetHasDataAddress: Boolean; override;
+    function GetTypeName: String; override;
 
     // arary
     function  GetCount: Integer; override;
@@ -39,6 +42,9 @@ type
     procedure SetSelectedIndex(AnIndex: Integer); override;
 
     function HandleExpressionSuffix(ASuffix: String): TWatchResultData; override;
+
+    property JsonAddressKey: String read FJsonAddressKey write FJsonAddressKey;
+    property JsonTypenameKey: String read FJsonTypenameKey write FJsonTypenameKey;
   end;
 
   { TWatchResultDataJSon }
@@ -92,18 +98,28 @@ function TWatchResultDataJSonBase.GetDataAddress: TDBGPtr;
 var
   j: TJSONData;
 begin
-  Result := 0;
   j := JSon;
-  if (j = nil) and not(j is TJSONObject) then
+  if (FJsonAddressKey = '') or (j = nil) or not(j is TJSONObject)
-    exit;
+  then
+    exit(inherited GetDataAddress);
 
-  if (TJSONObject(j).Elements['Address'] <> nil) then
+  try
-    j := TJSONObject(j).Elements['Address']
+    j := TJSONObject(j).Elements[FJsonAddressKey];
-  else
+  except
-    j := TJSONObject(j).Elements['DataAddress'];
+    j := nil;
+  end;
+
+  if j = nil then
+    exit(inherited GetDataAddress);
+
+  if j is TJSONString then begin
+    if not TryStrToQWord(j.AsString, Result) then
+      Result := inherited GetDataAddress;
+    exit;
+  end;
 
   if ((j is TJSONFloatNumber)) or not(j is TJSONNumber) then
-    exit;
+    exit(inherited GetDataAddress);
 
   if j is TJSONInt64Number then
     Result := TDBGPtr(j.AsInt64)
@@ -114,18 +130,48 @@ end;
 function TWatchResultDataJSonBase.GetHasDataAddress: Boolean;
 var
   j: TJSONData;
+  d: QWord;
 begin
+  Result := inherited GetHasDataAddress;
+  if Result then
+    exit;
+
   j := JSon;
-  Result := (j <> nil) and (j is TJSONObject);
+  Result := (FJsonAddressKey <> '') and (j <> nil) and (j is TJSONObject);
   if not Result then
     exit;
 
-  if (TJSONObject(j).Elements['Address'] <> nil) then
+  try
-    j := TJSONObject(j).Elements['Address']
+    j := TJSONObject(j).Elements[FJsonAddressKey];
-  else
+  except
-    j := TJSONObject(j).Elements['DataAddress'];
+    j := nil;
+  end;
+  if j = nil then
+    exit(False);
 
-  Result := (j is TJSONNumber) and not (j is TJSONFloatNumber);
+  Result := ((j is TJSONNumber) and not (j is TJSONFloatNumber)) or
+            ((j is TJSONString) and (TryStrToQWord(j.AsString, d)));
+end;
+
+function TWatchResultDataJSonBase.GetTypeName: String;
+var
+  j: TJSONData;
+begin
+  Result := '';
+  j := JSon;
+  if (FJsonTypenameKey = '') or (j = nil) or not(j is TJSONObject) then
+    exit(inherited GetTypeName);
+
+  try
+    j := TJSONObject(j).Elements[FJsonTypenameKey];
+  except
+    j := nil;
+  end;
+
+  if (j = nil) or not(j is TJSONString) then
+    exit(inherited GetTypeName);
+
+  Result := j.AsString;
 end;
 
 function TWatchResultDataJSonBase.GetCount: Integer;
@@ -159,6 +205,10 @@ begin
     FCurData := TWatchResultDataJSonBase.Create('');
   if JSon <> nil then
     FCurData.FInternalJSon := JSon.Items[FIndex];
+
+  TWatchResultDataJSon(FCurData).FJsonAddressKey := FJsonAddressKey;
+  TWatchResultDataJSon(FCurData).FJsonTypenameKey := FJsonTypenameKey;
+
   Result := FCurData;
 end;
 
@@ -187,6 +237,10 @@ begin
     FCurData.FInternalJSon := JSon.Items[AnIndex];
     Result.FieldName := TJSONObject(JSon).Names[AnIndex];
   end;
+
+  TWatchResultDataJSon(FCurData).FJsonAddressKey := FJsonAddressKey;
+  TWatchResultDataJSon(FCurData).FJsonTypenameKey := FJsonTypenameKey;
+
   Result.Field := FCurData;
   Result.Owner := Self;
 end;
@@ -316,6 +370,8 @@ begin
 
   if (Idx > SfxLen) and (js <> nil) and (js <> JSon) then begin
     Result := TWatchResultDataJSon.Create(js.AsJSON);
+    TWatchResultDataJSon(Result).FJsonAddressKey := FJsonAddressKey;
+    TWatchResultDataJSon(Result).FJsonTypenameKey := FJsonTypenameKey;
     exit;
   end;
 

ide/packages/idedebugger/idefpdbgvalueconvertersettingsframe.lfm

@@ -17,6 +17,7 @@ object FpDbgValConvFrame: TFpDbgValConvFrame
     BevelOuter = bvNone
     ClientHeight = 150
     ClientWidth = 512
+    Constraints.MinHeight = 80
     TabOrder = 0
     object lstConverters: TCheckListBox
       Left = 5
@@ -79,6 +80,7 @@ object FpDbgValConvFrame: TFpDbgValConvFrame
     BevelOuter = bvNone
     ClientHeight = 362
     ClientWidth = 512
+    Constraints.MinHeight = 120
     TabOrder = 2
     object Panel4: TPanel
       Left = 342
@@ -111,6 +113,7 @@ object FpDbgValConvFrame: TFpDbgValConvFrame
         Top = 25
         Width = 160
         ItemHeight = 15
+        OnChange = dropActionChange
         Style = csDropDownList
         TabOrder = 0
       end
@@ -181,6 +184,17 @@ object FpDbgValConvFrame: TFpDbgValConvFrame
     Top = 150
     Width = 512
     Align = alTop
+    OnCanOffset = Splitter1CanOffset
     ResizeAnchor = akTop
   end
+  object pnlCurConvSetting: TPanel
+    Left = 0
+    Height = 0
+    Top = 519
+    Width = 512
+    Align = alBottom
+    AutoSize = True
+    Caption = 'PnlConvSetting'
+    TabOrder = 3
+  end
 end

ide/packages/idedebugger/idefpdbgvalueconvertersettingsframe.pas

@@ -6,8 +6,8 @@ interface
 
 uses
   Classes, SysUtils, Forms, Controls, ExtCtrls, StdCtrls, CheckLst, LCLIntf,
-  Dialogs, StrUtils, FpDebugValueConvertors, IdeDebuggerStringConstants,
+  Dialogs, StrUtils, FpDebugValueConvertors, LazDebuggerValueConverter,
-  IdeDebuggerFpDbgValueConv;
+  IdeDebuggerStringConstants, IdeDebuggerFpDbgValueConv;
 
 type
 
@@ -26,23 +26,34 @@ type
     memoTypeNames: TMemo;
     Panel1: TPanel;
     Panel2: TPanel;
+    pnlCurConvSetting: TPanel;
     pnlCurrentConv: TPanel;
     Panel4: TPanel;
     Panel5: TPanel;
     Splitter1: TSplitter;
     procedure btnAddClick(Sender: TObject);
     procedure btnRemoveClick(Sender: TObject);
+    procedure dropActionChange(Sender: TObject);
     procedure lstConvertersClick(Sender: TObject);
     procedure lstConvertersItemClick(Sender: TObject; Index: integer);
+    procedure Splitter1CanOffset(Sender: TObject; var NewOffset: Integer;
+      var Accept: Boolean);
   private
     FValConvList: TIdeFpDbgConverterConfigList;
     FCurIdx: Integer;
-    FCurValConv: TIdeFpDbgConverterConfig;
+    FCurConvConf: TIdeFpDbgConverterConfig;
+    FCurConv: TLazDbgValueConverterIntf;
+    FCurConvSettings: TLazDbgValueConverterSettingsFrameIntf;
+
+    procedure SetCurConv(AValConv: TIdeFpDbgConverterConfig);
+    procedure UpdateConvForClass;
+    procedure UpdateConvPanel;
     procedure FillList;
     procedure UpdateButtons;
     procedure SetValConvList(AValue: TIdeFpDbgConverterConfigList);
   public
     constructor Create(TheOwner: TComponent); override;
+    destructor Destroy; override;
     procedure SaveCurrent;
     procedure Setup;
 
@@ -67,7 +78,7 @@ begin
 
   SaveCurrent;
 
-  FCurValConv := nil;
+  FCurConvConf := nil;
   AvailClass := ValueConverterClassList;
   obj := TIdeFpDbgConverterConfig.Create(AvailClass[0].Create);
   obj.Enabled := True;
@@ -86,7 +97,7 @@ var
   i: Integer;
 begin
   SaveCurrent;
-  FCurValConv := nil;
+  FCurConvConf := nil;
   i := lstConverters.ItemIndex;
   FValConvList.Delete(i);
 
@@ -97,6 +108,11 @@ begin
   lstConvertersClick(nil);
 end;
 
+procedure TFpDbgValConvFrame.dropActionChange(Sender: TObject);
+begin
+  UpdateConvForClass;
+end;
+
 procedure TFpDbgValConvFrame.lstConvertersClick(Sender: TObject);
 var
   AvailClass: TFpDbgValueConverterClassList;
@@ -107,20 +123,20 @@ begin
   FCurIdx := lstConverters.ItemIndex;
   if FCurIdx >= FValConvList.Count then begin
     FCurIdx := -1;
-    FCurValConv := nil;
+    FCurConvConf := nil;
     lblDesc.Caption := '';
     EdName.Text := '';
     memoTypeNames.Text := '';
   end
   else
-    FCurValConv := FValConvList[FCurIdx];
+    SetCurConv(FValConvList[FCurIdx]);
 
-  lblDesc.Caption := FCurValConv.Converter.GetName;
+  lblDesc.Caption := FCurConvConf.Converter.GetName;
-  EdName.Text := FCurValConv.Name;
+  EdName.Text := FCurConvConf.Name;
-  memoTypeNames.Text := FCurValConv.MatchTypeNames.Text;
+  memoTypeNames.Text := FCurConvConf.MatchTypeNames.Text;
 
   AvailClass := ValueConverterClassList;
-  dropAction.ItemIndex := AvailClass.IndexOf(TFpDbgValueConverterClass(FCurValConv.Converter.ClassType));
+  dropAction.ItemIndex := AvailClass.IndexOf(TFpDbgValueConverterClass(FCurConvConf.Converter.ClassType));
 
   lstConvertersItemClick(nil, FCurIdx);
 end;
@@ -141,12 +157,55 @@ begin
   UpdateButtons;
 end;
 
+procedure TFpDbgValConvFrame.Splitter1CanOffset(Sender: TObject;
+  var NewOffset: Integer; var Accept: Boolean);
+begin
+
+end;
+
+procedure TFpDbgValConvFrame.SetCurConv(AValConv: TIdeFpDbgConverterConfig);
+begin
+  FCurConvConf := AValConv;
+  FCurConv := TLazDbgValueConvertSelectorIntf(FCurConvConf).GetConverter;
+  UpdateConvPanel;
+end;
+
+procedure TFpDbgValConvFrame.UpdateConvForClass;
+var
+  AvailClass: TFpDbgValueConverterClassList;
+begin
+  if FCurConvConf = nil then
+    exit;
+
+  AvailClass := ValueConverterClassList;
+  if (dropAction.ItemIndex <> AvailClass.IndexOf(TFpDbgValueConverterClass(FCurConv.GetObject.ClassType))) then begin
+    FCurConv := AvailClass[dropAction.ItemIndex].Create;
+    UpdateConvPanel;
+  end;
+end;
+
+procedure TFpDbgValConvFrame.UpdateConvPanel;
+var
+  F: TFrame;
+begin
+  if FCurConvSettings <> nil then
+    FCurConvSettings.Free;
+
+  FCurConvSettings := FCurConv.GetSettingsFrame;
+  if FCurConvSettings <> nil then begin
+    F := TFrame(FCurConvSettings.GetFrame);
+    F.Parent := pnlCurConvSetting;
+    F.Align := alClient;
+    FCurConvSettings.ReadFrom(FCurConv);
+  end;
+end;
+
 procedure TFpDbgValConvFrame.FillList;
 var
   i: Integer;
   obj: TIdeFpDbgConverterConfig;
 begin
-  FCurValConv := nil;
+  FCurConvConf := nil;
 
   lstConverters.Clear;
   for i := 0 to FValConvList.Count - 1 do begin
@@ -160,14 +219,14 @@ procedure TFpDbgValConvFrame.UpdateButtons;
 begin
   btnAdd.Enabled := ValueConverterClassList.Count > 0;
   btnRemove.Enabled := (lstConverters.Count > 0) and (lstConverters.ItemIndex >= 0);
-  pnlCurrentConv.Enabled := FCurValConv <> nil;
+  pnlCurrentConv.Enabled := FCurConvConf <> nil;
 end;
 
 procedure TFpDbgValConvFrame.SetValConvList(AValue: TIdeFpDbgConverterConfigList);
 begin
   if FValConvList = AValue then Exit;
   FValConvList := AValue;
-  FCurValConv := nil;
+  FCurConvConf := nil;
 
   FillList;
 
@@ -182,21 +241,20 @@ procedure TFpDbgValConvFrame.SaveCurrent;
 var
   AvailClass: TFpDbgValueConverterClassList;
 begin
-  if FCurValConv = nil then
+  if FCurConvConf = nil then
     exit;
 
   AvailClass := ValueConverterClassList;
-  if (TrimSet(FCurValConv.MatchTypeNames.Text, [#1..#32]) <> TrimSet(memoTypeNames.Text, [#1..#32])) or
+  if ( (FCurConv = nil) or (FCurConvSettings = nil) or FCurConvSettings.WriteTo(FCurConv) ) or
-     (dropAction.ItemIndex <> AvailClass.IndexOf(TFpDbgValueConverterClass(FCurValConv.Converter.ClassType))) or
+     (TrimSet(FCurConvConf.MatchTypeNames.Text, [#1..#32]) <> TrimSet(memoTypeNames.Text, [#1..#32])) or
-     (EdName.Text <> FCurValConv.Name)
+     (FCurConvConf.Converter <> FCurConv) or
+     (EdName.Text <> FCurConvConf.Name)
   then begin
     FValConvList.Changed := True;
-    if (dropAction.ItemIndex <> AvailClass.IndexOf(TFpDbgValueConverterClass(FCurValConv.Converter.ClassType))) then begin
+    FCurConvConf.Converter := TFpDbgValueConverter(FCurConv.GetObject);
-      FCurValConv.Converter := AvailClass[dropAction.ItemIndex].Create;
+    FCurConvConf.MatchKinds := FCurConvConf.Converter.GetSupportedKinds;
-      FCurValConv.MatchKinds := FCurValConv.Converter.GetSupportedKinds;
+    FCurConvConf.MatchTypeNames.Text := memoTypeNames.Text;
-    end;
+    FCurConvConf.Name := EdName.Text
-    FCurValConv.MatchTypeNames.Text := memoTypeNames.Text;
-    FCurValConv.Name := EdName.Text
   end;
 end;
 
@@ -211,7 +269,7 @@ begin
   lblTypeNames.Caption := dlgFpConvOptMatchTypesByName;
   lblAction.Caption    := dlgFpConvOptAction;
 
-  FCurValConv := nil;
+  FCurConvConf := nil;
   lblDesc.Caption := '-';
 
   dropAction.Clear;
@@ -228,5 +286,13 @@ begin
   Setup;
 end;
 
+destructor TFpDbgValConvFrame.Destroy;
+begin
+  if FCurConvSettings <> nil then
+    FCurConvSettings.Free;
+
+  inherited Destroy;
+end;
+
 end.