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*** empty log message ***

florian 20 years ago
parent
commit
11c8f72e53
1 changed files with 124 additions and 0 deletions
  1. 124 0
      tests/test/dumpmethods.pp

+ 124 - 0
tests/test/dumpmethods.pp

@@ -0,0 +1,124 @@
+program DumpMethods;
+
+{$mode objfpc}{$H+}
+
+uses
+  Classes,  SysUtils;
+  
+const
+  VMT_COUNT = 100;                  
+
+
+type
+  TMethodNameTableEntry = packed record
+      Name: PShortstring;
+      Addr: Pointer;
+    end;
+
+  TMethodNameTable = packed record
+    Count: DWord;
+    Entries: packed array[0..9999999] of TMethodNameTableEntry;
+  end;
+  PMethodNameTable =  ^TMethodNameTable;
+  
+  TPointerArray = packed array[0..9999999] of Pointer;
+  PPointerArray = ^TPointerArray;
+  
+{$M+}
+  TMyTest = class(TObject)
+//  published
+    procedure P1; virtual;
+    procedure P2; virtual;
+  end;
+{$M-}
+
+  TMyTest2 = class(TMyTest)
+//  published
+    procedure P2; override;
+    procedure P3; virtual;
+  end;
+
+  TMyPersistent = class(TPersistent)
+//  published
+    procedure P1; virtual;
+    procedure P2; virtual;
+  end;
+  
+procedure TMyTest.P1; 
+begin
+end;
+
+procedure TMyTest.P2; 
+begin
+end;
+
+procedure TMyTest2.P2; 
+begin
+end;
+
+procedure TMyTest2.P3; 
+begin
+end;
+
+procedure TMyPersistent.P1; 
+begin
+end;
+
+procedure TMyPersistent.P2; 
+begin
+end;
+
+procedure DumpClass(AClass: TClass);
+var
+  Cvmt: PPointerArray;
+  Cmnt: PMethodNameTable;
+  Indent: String;
+  n, idx: Integer;
+  SearchAddr: Pointer;
+begin 
+  WriteLn('---------------------------------------------');
+  WriteLn('Dump of ', AClass.ClassName);
+  WriteLn('---------------------------------------------');
+  Indent := '';
+  while AClass <> nil do
+  begin
+    WriteLn(Indent, 'Processing ', AClass.Classname);
+    Indent := Indent + ' ';
+    Cmnt := PPointer(Pointer(AClass) + vmtMethodTable)^;
+    if Cmnt <> nil
+    then begin
+      WriteLn(Indent, 'Method count: ', IntToStr(Cmnt^.Count));
+
+      Cvmt := Pointer(AClass) + vmtMethodStart;
+          
+      for n := 0 to Cmnt^.Count - 1 do
+      begin                
+        WriteLn(Indent, 'Search: ', Cmnt^.Entries[n].Name^);
+         
+        SearchAddr := Cmnt^.Entries[n].Addr;
+        for idx := 0 to VMT_COUNT - 1 do
+        begin
+          if Cvmt^[idx] = SearchAddr
+          then begin
+            WriteLn(Indent, 'Found at index: ', IntToStr(idx));
+            Break;
+          end;
+          if idx = VMT_COUNT - 1
+          then begin
+            WriteLn('[WARNING] VMT entry "', Cmnt^.Entries[n].Name^, '" not found in "', AClass.ClassName, '"');
+            Break;
+          end;
+        end;
+      end;
+    end;
+    AClass := AClass.ClassParent;
+  end;
+end;
+  
+begin
+  DumpClass(TMyTest);
+  DumpClass(TMyTest2);
+  DumpClass(TPersistent);
+  DumpClass(TMyPersistent);
+end.
+