[ 
http://dev.sourcefabric.org/browse/LS-551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

David Baelde updated LS-551:
----------------------------

    Priority: Major  (was: Blocker)

> Type inference doesn't perform enough subtyping
> -----------------------------------------------
>
>                 Key: LS-551
>                 URL: http://dev.sourcefabric.org/browse/LS-551
>             Project: Liquidsoap
>          Issue Type: Bug
>          Components: Liquidsoap
>    Affects Versions: 1.0 beta
>            Reporter: Romain Beauxis
>            Assignee: David Baelde
>            Priority: Major
>
> The following does not work:
> output.dummy(
>   fallback([strip_blank(sine()), sine()]), 
>   fallible=true)
> I get:
>   this value has type
>     source(_)
>   but it should be a subtype of (the type of the value at line 1, char 35-42)
>     active_source(_)
> It is my understanding that there should be no technical reasons to prohibit 
> this and so there must be something to do at the type-checking level..
> Edit: The problem is that type inference guesses that this is a list of 
> active_sources, but the second one isn't active; we need a constraint-based 
> type inference algorithm to integrate subtyping in smarter ways, eg. delay 
> the guess until we've seen all elements.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: 
http://dev.sourcefabric.org/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

------------------------------------------------------------------------------
All the data continuously generated in your IT infrastructure contains a
definitive record of customers, application performance, security
threats, fraudulent activity and more. Splunk takes this data and makes
sense of it. Business sense. IT sense. Common sense.
http://p.sf.net/sfu/splunk-d2dcopy1
_______________________________________________
Savonet-devl mailing list
Savonet-devl@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/savonet-devl

Répondre à