Hpack.indexed.choose: def of bend-kit-http2@0.4.0.0
Import: import bend-kit-http2@0.4.0.0/hpack.bend as Hpack
Lines 219-224 of bend-kit-http2@0.4.0.0/hpack.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-http2@0.4.0.0/hpack.bend&start_line=219&end_line=224

import Base

def indexed.choose(s: Bool, +i: U32, xs: List<&2, Field>) -> Maybe<&2, Field>:
  match s:
    case True{}:
      indexed.static(U32.is_ne(i, 0), i)
    case False{}:
      table.at(xs, U32.to_nat((i - 62 : U32)))

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_ne
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.sub
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.to_nat
  https://jend.leeeet.dev/definition.txt?path=bend-kit-http2@0.4.0.0/hpack.bend&name=Field
  https://jend.leeeet.dev/definition.txt?path=bend-kit-http2@0.4.0.0/hpack.bend&name=indexed.static
  https://jend.leeeet.dev/definition.txt?path=bend-kit-http2@0.4.0.0/hpack.bend&name=table.at