+1

Robby

On Mon, Jun 2, 2014 at 3:25 PM, Matthias Felleisen <matth...@ccs.neu.edu> wrote:
>
> Yes, option contracts should move into the mainstream library.
>
> The point of option contracts is that you can program which parts you want to 
> run, how often, and which parts you want turned off. I urge you to build your 
> abstraction on top of option contracts. If you do, please report back on your 
> experience.
>
> -- Matthias
>
>
>
>
>
> On Jun 2, 2014, at 4:20 PM, Roman Klochkov <kalimeh...@mail.ru> wrote:
>
>> The problem is that, when debbugging, contract should be precise. For 
>> example, insert-in-sorted-queue may check that queue is orted before and 
>> after the function.
>> But inserting the element is O(log n) and testing will be O(n).
>>
>> option contracts -- 1) unstable 2) should be turned off and on individually.
>>
>> For quick hack, I'll simply redefine contract-out and recompile all. But I 
>> propose something like two contracts: for debug and production modes.
>>
>>
>> Mon, 2 Jun 2014 15:49:05 -0400 от Matthias Felleisen <matth...@ccs.neu.edu>:
>>
>> On Jun 2, 2014, at 3:42 PM, Roman Klochkov <kalimeh...@mail.ru> wrote:
>>
>> > Is there a way to disable all contract checks?
>> >
>> > Suppose, I debugged my program and sure that it is reliable. I disable 
>> > debugging, but as I understand, contracts are still checked in every 
>> > function.
>> > But I want to maximize the performance of my program. Is there a way to do 
>> > that or I have to manually hack racket/contract/base to do that?
>>
>>
>> No.
>>
>> ;; ---
>>
>> Programmers who disable assertion checking as they are deploying software 
>> are like people who wear life vests on land when they learn about the theory 
>> of sailing and take them off as soon as they board the boat for practical 
>> exercises on the water. -- somebody famous
>>
>> ;; ---
>>
>> You will need to define a version of provide and/or contract-out that throws 
>> away contracts based on a switch.
>>
>> Or you check out option contracts and use those.
>>
>> -- Matthias
>>
>>
>>
>> --
>> Roman Klochkov
>
>
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