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Source for ticket #396

cc


    
changetime

    
2012-07-11 01:36:30

    
component

    
WG1 - Core

    
description

    
What are we going to do about code like this:

{{{
(define foo (make-parameter 0))
(define bar (delay (foo)))
(parameterize ((foo 1)) (force bar))
}}}

Does this return 0, 1, or either?  All the Schemes in my test suite that support SRFI 39 return 1, so the question is whether we standardize this or permit implementations to return 0.  This would be plausible if the delayed expression were executed on a separate thread starting at delay time, in the manner of futures.


    
id

    
396

    
keywords

    

    
milestone

    

    
owner

    
alexshinn

    
priority

    
major

    
reporter

    
cowan

    
resolution

    
duplicate

    
severity

    

    
status

    
closed

    
summary

    
Promises vs. parameters

    
time

    
2012-06-07 06:01:45

    
type

    
defect

    
Changes

    
Change at time 2012-07-11 01:36:30

    
author

    
cowan

    
field

    
comment

    
newvalue

    
Duplicate of #397.

    
oldvalue

    
1

    
raw-time

    
1341945390910371

    
ticket

    
396

    
time

    
2012-07-11 01:36:30

    
Change at time 2012-07-11 01:36:30

    
author

    
cowan

    
field

    
resolution

    
newvalue

    
duplicate

    
oldvalue

    

    
raw-time

    
1341945390910371

    
ticket

    
396

    
time

    
2012-07-11 01:36:30

    
Change at time 2012-07-11 01:36:30

    
author

    
cowan

    
field

    
status

    
newvalue

    
closed

    
oldvalue

    
new

    
raw-time

    
1341945390910371

    
ticket

    
396

    
time

    
2012-07-11 01:36:30