Re: Design problem: generic package vs tagged subtype

["Jeffrey R. Carter" <spam.jrcarter.not@spam.acm.org>]

On 06/30/2010 10:57 PM, Simon Wright wrote:
>
> Use context -- I'd much rather write
>    procedure Send (M : Message);
> than
>    procedure Send (The_Message : Message);
> or, much worse,
>    procedure Send (Message_To_Send : Message);

I don't really care which of these I write. But I'd much rather READ

Send (Message => ...);

than

Send (M => ...); -- Meaningless

or

Send (The_Message => ...); -- Prefixes decrease readability

or

Send (Message_To_Send => ...); -- "much worse"

so I'd probably write

procedure Send (Message : in Message_Info);

or something like that. More importantly, I'd decide that I want to read 
"Message" as the formal parameter name 1st, and from there decide on my type name.

I understand that this requires thinking before coding, and so will never be 
popular.

-- 
Jeff Carter
"My dear Mrs. Hemoglobin, when I first saw you, I
was so enamored with your beauty I ran to the basket,
jumped in, went down to the city, and bought myself a
wedding outfit."
Never Give a Sucker an Even Break
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