Cody: declare variable: show existing definition

git-svn-id: trunk@30877 -

components/codetools/customcodetool.pas

@@ -223,7 +223,7 @@ type
         out Caret:TCodeXYPosition; out NewTopLine: integer): boolean; // true=ok, false=invalid CleanPos
     function CleanPosToStr(CleanPos: integer; WithFilename: boolean = false): string;
     function CleanPosToRelativeStr(CleanPos: integer;
-        const BasePos: TCodeXYPosition): string;
+        const BaseFilename: string): string;
     procedure GetCleanPosInfo(CodePosInFront, CleanPos: integer;
         ResolveComments: boolean; out SameArea: TAtomPosition);
     procedure GetLineInfo(ACleanPos: integer;
@@ -2548,18 +2548,18 @@ begin
 end;
 
 function TCustomCodeTool.CleanPosToRelativeStr(CleanPos: integer;
-  const BasePos: TCodeXYPosition): string;
+  const BaseFilename: string): string;
 var
   CodePos: TCodeXYPosition;
 begin
   if not CleanPosToCaret(CleanPos,CodePos) then
     Result:='(?)'
   else begin
-    if (BasePos.Code=nil) or (not FilenameIsAbsolute(BasePos.Code.Filename)) then
+    if (BaseFilename='') or (not FilenameIsAbsolute(BaseFilename)) then
       Result:=CodePos.Code.Filename
-    else if (CodePos.Code<>BasePos.Code) then
+    else if CompareFilenames(CodePos.Code.Filename,BaseFilename)<>0 then
       Result:=CreateRelativePath(CodePos.Code.Filename,
-                                 ExtractFilePath(BasePos.Code.Filename))
+                                 ExtractFilePath(BaseFilename))
     else
       Result:='';
     Result:=Result+'('+IntToStr(CodePos.Y)+','+IntToStr(CodePos.X)+')';

components/codetools/ide/declarevardlg.lfm

@@ -1,7 +1,7 @@
 object CodyDeclareVarDialog: TCodyDeclareVarDialog
-  Left = 275
+  Left = 291
   Height = 298
-  Top = 250
+  Top = 243
   Width = 408
   Caption = 'CodyDeclareVarDialog'
   ClientHeight = 298
@@ -12,8 +12,8 @@ object CodyDeclareVarDialog: TCodyDeclareVarDialog
   LCLVersion = '0.9.31'
   object ButtonPanel1: TButtonPanel
     Left = 6
-    Height = 40
-    Top = 252
+    Height = 42
+    Top = 250
     Width = 396
     OKButton.Name = 'OKButton'
     OKButton.Caption = '&OK'
@@ -28,12 +28,12 @@ object CodyDeclareVarDialog: TCodyDeclareVarDialog
   end
   object Panel1: TPanel
     Left = 0
-    Height = 246
+    Height = 244
     Top = 0
     Width = 408
     Align = alClient
     BevelOuter = bvNone
-    ClientHeight = 246
+    ClientHeight = 244
     ClientWidth = 408
     TabOrder = 1
     object TypeLabel: TLabel
@@ -42,8 +42,8 @@ object CodyDeclareVarDialog: TCodyDeclareVarDialog
       AnchorSideTop.Side = asrCenter
       Left = 6
       Height = 18
-      Top = 223
-      Width = 66
+      Top = 221
+      Width = 71
       BorderSpacing.Left = 6
       BorderSpacing.Right = 6
       Caption = 'TypeLabel'
@@ -57,10 +57,10 @@ object CodyDeclareVarDialog: TCodyDeclareVarDialog
       AnchorSideRight.Side = asrBottom
       AnchorSideBottom.Control = Panel1
       AnchorSideBottom.Side = asrBottom
-      Left = 78
+      Left = 83
       Height = 27
-      Top = 219
-      Width = 324
+      Top = 217
+      Width = 319
       Anchors = [akLeft, akRight, akBottom]
       BorderSpacing.Top = 6
       BorderSpacing.Right = 6
@@ -70,8 +70,8 @@ object CodyDeclareVarDialog: TCodyDeclareVarDialog
     object WhereRadioGroup: TRadioGroup
       AnchorSideBottom.Control = TypeEdit
       Left = 6
-      Height = 207
-      Top = 6
+      Height = 181
+      Top = 30
       Width = 396
       Align = alTop
       Anchors = [akTop, akLeft, akRight, akBottom]
@@ -88,5 +88,15 @@ object CodyDeclareVarDialog: TCodyDeclareVarDialog
       ChildSizing.ControlsPerLine = 1
       TabOrder = 1
     end
+    object RedefineLabel: TLabel
+      Left = 6
+      Height = 18
+      Top = 6
+      Width = 396
+      Align = alTop
+      BorderSpacing.Around = 6
+      Caption = 'RedefineLabel'
+      ParentColor = False
+    end
   end
 end

components/codetools/ide/declarevardlg.pas

@@ -33,7 +33,6 @@
     - guess for in
     - guess parameter
     - guess <i>:=expression
-    - Fix bug: adding a public variable is added after a method
     - Extend uses section when adding to a class
     - Fix bug: adding types with comments
 }
@@ -73,6 +72,7 @@ type
     TypeEdit: TEdit;
     TypeLabel: TLabel;
     WhereRadioGroup: TRadioGroup;
+    RedefineLabel: TLabel;
     procedure HelpButtonClick(Sender: TObject);
     procedure OKButtonClick(Sender: TObject);
     procedure FormCreate(Sender: TObject);
@@ -93,6 +93,7 @@ procedure ShowDeclareVariableDialog(Sender: TObject);
 
 function CheckCreateVarFromIdentifierInSrcEdit(out CodePos: TCodeXYPosition;
   out Tool: TCodeTool; out NewIdentifier, NewType, NewUnitName: string;
+  out ExistingDefinition: TFindContext;
   out PossibleContexts: TFPList): boolean;
 
 implementation
@@ -112,6 +113,7 @@ end;
 function CheckCreateVarFromIdentifierInSrcEdit(
   out CodePos: TCodeXYPosition; out Tool: TCodeTool;
   out NewIdentifier, NewType, NewUnitName: string;
+  out ExistingDefinition: TFindContext;
   out PossibleContexts: TFPList // list of PFindContext
   ): boolean;
 
@@ -127,7 +129,6 @@ var
   CursorNode: TCodeTreeNode;
   Handled: boolean;
   IsKeyword: boolean;
-  ExistingDefinition: TFindContext;
   NewExprType: TExpressionType;
   IsSubIdentifier: boolean;
 begin
@@ -137,6 +138,7 @@ begin
   NewUnitName:='';
   CodePos:=CleanCodeXYPosition;
   Tool:=nil;
+  ExistingDefinition:=CleanFindContext;
   PossibleContexts:=nil;
 
   if (ParseTilCursor(Tool,CleanPos,CursorNode,Handled,true,@CodePos)<>cupeSuccess)
@@ -269,15 +271,24 @@ var
   OldChange: boolean;
   OldSrcEdit: TSourceEditorInterface;
   NewType: String;
+  ExistingDefinition: TFindContext;
 begin
   Result:=false;
   PossibleContexts:=nil;
   Targets.Clear;
   try
     if not CheckCreateVarFromIdentifierInSrcEdit(CodePos,Tool,Identifier,
-      RecommendedType,UnitOfType,PossibleContexts)
+      RecommendedType,UnitOfType,ExistingDefinition,PossibleContexts)
     then exit;
 
+    if ExistingDefinition.Node<>nil then begin
+      RedefineLabel.Visible:=true;
+      RedefineLabel.Caption:='Already defined at '+ExistingDefinition.Tool.CleanPosToRelativeStr(
+        ExistingDefinition.Node.StartPos,CodePos.Code.Filename);
+    end else begin
+      RedefineLabel.Visible:=false;
+    end;
+
     if PossibleContexts<>nil then begin
       for i:=0 to PossibleContexts.Count-1 do begin
         Context:=PFindContext(PossibleContexts[i])^;

components/codetools/pascalparsertool.pas

@@ -2023,6 +2023,7 @@ var
   var
     p: LongInt;
     Msg: String;
+    f: String;
   begin
     ReadTilBracketCloseOrUnexpected:=false;
     if not ExceptionOnNotFound then exit;
@@ -2036,9 +2037,13 @@ var
     siEdgedBracketOpen: Msg:='bracket ] not found';
     siRecord: Msg:='record end not found';
     end;
-    if CurPos.StartPos<=SrcLen then
-      Msg:=Msg+', found unexpected '+GetAtom
-        +' at '+CleanPosToRelativeStr(CurPos.StartPos,ErrorNicePosition);
+    if CurPos.StartPos<=SrcLen then begin
+      if ErrorNicePosition.Code<>nil then
+        f:=ErrorNicePosition.Code.Filename
+      else
+        f:='';
+      Msg:=Msg+', found unexpected '+GetAtom+' at '+CleanPosToRelativeStr(CurPos.StartPos,f);
+    end;
     SaveRaiseException(Msg,not CleanPosToCaret(p,ErrorNicePosition));
   end;