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designer: TDesigner.AddUndoAction check if GetPropInfo returned valid result, otherwise we'll crash.issue #25748,#25757

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git-svn-id: trunk@44200 -
This commit is contained in:
zeljko 2014-02-22 20:45:11 +00:00
parent 0b643cfb88
commit e72d3ad584
1 changed files with 9 additions and 1 deletions
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10
designer/designer.pp
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@ -1646,9 +1646,17 @@ var
i: integer;
SaveControlSelection: TControlSelection;
AStream: TStringStream;
APropInfo: PPropInfo;
begin
Result := (FUndoLock = 0);
if not Result then Exit;
APropInfo := GetPropInfo(aPersistent, aFieldName);
{property is not published ?}
if APropInfo = nil then
begin
DebugLn('TDesigner.AddUndoAction: error ',dbgsName(aPersistent),' property "',AFieldName,'". Property is not published ? ');
exit;
end;
Inc(FUndoLock);
try
if FUndoCurr > High(FUndoList) then
@ -1700,7 +1708,7 @@ begin
opType := aOpType;
isValid := true;
id := FUndoActId;
propInfo := GetPropInfo(aPersistent, aFieldName)^;
propInfo := APropInfo^;
end;
Inc(FUndoCurr);
finally