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urbit/base/pub/doc/hoon/runes/sg/sgbr.md
Philip C Monk f03263852c main->base, arvo events depth-first
2015-04-29 18:48:45 -04:00

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sigbar, ~|, %sgbr

Add to stacktrace

~| is a synthetic hoon that presents the product of p in the stack trace if q crashes. The computation is only performed if needed.

Produces

Twig: [%sgbr p=twig q=twig]

Sample

p is a twig. q is a twig.

Tall form

~|  p
    q

Wide form

~|(p q)

Irregular form

None

Examples