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From: "Hongbo Zhang (BLOOMBERG/ 731 LEX)" <hzhang295@bloomberg.net>
To: caml-list@inria.fr
Subject: [Caml-list] question: what is the recommended use case of `val` in class type
Date: Sat, 2 Jul 2016 16:45:58 -0000	[thread overview]
Message-ID: <5777EFC6021303B200390026_0_980@p057> (raw)

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Dear all,
    I have a question about val in class type, is it only useful in inheritance?
    for example
   
    class type text = object val mutable text : string end      
   
    let f (x : text ) = x#text;;                                                                                                                                                               
                      ^                                                                                                                                                                      
Error: This expression has type text                                                                                                                                                         
       It has no method text   
    Thanks -- Hongbo

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             reply	other threads:[~2016-07-02 16:46 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-02 16:45 Hongbo Zhang (BLOOMBERG/ 731 LEX) [this message]
2016-07-02 16:59 ` Gabriel Scherer
2016-07-02 17:02 Hongbo Zhang (BLOOMBERG/ 731 LEX)
2016-07-02 17:07 ` Nicolas Ojeda Bar
2016-07-02 17:23 Hongbo Zhang (BLOOMBERG/ 731 LEX)
2016-07-03  6:23 ` Jacques Garrigue
2016-07-04 10:19   ` Goswin von Brederlow
2016-07-04 21:56     ` Jacques Garrigue
2016-07-05 13:00 Hongbo Zhang (BLOOMBERG/ 731 LEX)

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