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Free Pascal => Beginners => Topic started by: CapelliC on June 26, 2020, 04:11:18 pm

Title: [solved] why the compiler flags a parameter as a duplicate property declaration?
Post by: CapelliC on June 26, 2020, 04:11:18 pm

Trying to compile ADODB.pas, that in turns references ADOInt.pas.
There, there at line 1312, I get an error I don't understand:

Code: Pascal  [Select][+][-]

1.   Connection15Disp = dispinterface
2.     ['{00000515-0000-0010-8000-00AA006D2EA4}']
3.     property ConnectionString: WideString dispid 0;
4.     property CommandTimeout: Integer dispid 2;
5. ...
6.     procedure Open(const ConnectionString: WideString; const UserID: WideString;
7.       const Password: WideString; Options: Integer); dispid 10;
8. ...
9.  
10.  

Code: [Select]

Errors: 23, Hints: 23
ADOInt.pas(1322,26) Error: Duplicate identifier "ConnectionString"
ADOInt.pas(1322,26) Hint: Identifier already defined in ADOInt.pas at line 1312
ADOInt.pas(1364,26) Error: Duplicate identifier "ConnectionString"
ADOInt.pas(1364,26) Hint: Identifier already defined in ADOInt.pas at line 1354
...(21 more...)

Seems it takes the parameter name for a property...
Sorry if sound like a stupid question, but what's wrong ?

Title: Re: why the compiler flags a parameter as a duplicate property declaration?
Post by: Bart on June 26, 2020, 04:33:33 pm

Probably you use {$mode objfpc}

Use

Code: Pascal  [Select][+][-]

1. procedure Open(const AConnectionString: ...)

instead as a procedure declaration, or switch to {$mode delphi}, where this is allowed.

Bart

Title: Re: why the compiler flags a parameter as a duplicate property declaration?
Post by: CapelliC on June 26, 2020, 05:02:18 pm

Thanks, changed to {$mode delphi}, that worked.