The detour the current computation answers screen interruptions with, absent
when none is installed (then a challenge stays the effect's failure). A
platform entry installs it around its start and around main; inside the
detour itself it is absent, so a branch's own requests are never detoured
again.
It belongs to whoever runs a screen member now, like the raw-answer
collection: a member runs with the services its handle holds, and this
value is carried from the caller into them (provideCaptured).
The detour the current computation answers screen interruptions with, absent when none is installed (then a challenge stays the effect's failure). A platform entry installs it around its start and around
main; inside the detour itself it is absent, so a branch's own requests are never detoured again.It belongs to whoever runs a screen member now, like the raw-answer collection: a member runs with the services its handle holds, and this value is carried from the caller into them (
provideCaptured).