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dojo dir validation: %ct scry at case da+now if imaginary case 0

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PR #5840 mostly fixed #1559, but introduced a new bug. before, you could safely `=dir` into a desk without a case, and it would use the nonexistent case `ud+0` as the beam for dojo state, and switch that out for da+now whenever it tries to resolve the current path. but this check causes it to fail, because `ud+0` is a nonexistent case. this uses he-beam to transform the beam in the conditional to see if the case is 0, and if it is, changes the case to da+now before it scries
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xiphiness 2022-09-06 16:24:22 -05:00 committed by GitHub
parent bc597c25ef
commit 2bc2d5a1bb
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1 changed files with 4 additions and 3 deletions
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7
pkg/arvo/app/dojo.hoon
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@ -562,15 +562,16 @@
((dy-cast (list cable:clay) !>(*(list cable:clay))) q.cay)
==
::
%dir =+ ^= pax ^- path
%dir =+ ^= bem ^- beam
%- need %- de-beam
=+ pax=((dy-cast path !>(*path)) q.cay)
?: ?=(~ pax) ~[(scot %p our.hid) %base '0']
?: ?=([@ ~] pax) ~[i.pax %base '0']
?: ?=([@ @ ~] pax) ~[i.pax i.t.pax '0']
pax
?: =(~ .^((list path) %ct pax))
?: =(~ .^((list path) %ct (en-beam he-beam(dir bem))))
+(..dy (he-diff %tan 'dojo: dir does not exist' ~))
=. dir (need (de-beam pax))
=. dir bem
=- +>(..dy (he-diff %tan - ~))
rose+[" " `~]^~[leaf+"=%" (smyt (en-beam he-beak s.dir))]
==