urbit/base/pub/doc/hoon/runes/kt/ktsg.md
2015-04-29 18:48:45 -04:00

914 B

ketsig, ^~, %ktsg

Compile statically

^~ is a natural hoon that tries to execute p statically at compile time; if this fails, p remains dynamic. ^~ is primarily useful for optimization, when you know that a value is static, or is most likely static, ^~ can simplify the compilation.

Produces

Twig: [%ktsg p=twig]

Sample

p is a twig.

Tall form

^~  a

Wide form

^~(a)

Irregular form

None

Examples

/~zod/try=> (make '|-(42)')
[%8 p=[%1 p=[1 42]] q=[%9 p=2 q=[%0 p=1]]]
/~zod/try=> (make '^~(|-(42))')
[%1 p=42]

Here we use ++make to examine the nock generated for a particular computation. We start with a simple kicked trap, |- that just generates the static value 42. When we wrap our |- in a ^~ you can see that our compilation is much simpler.