Jpeg.jpeg.scan.histories: def of gralha-jpeg-decode@0.1.0.1
Import: import gralha-jpeg-decode@0.1.0.1/jpeg.bend as Jpeg
Lines 553-557 of gralha-jpeg-decode@0.1.0.1/jpeg.bend: https://jend.leeeet.dev/read.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&start_line=553&end_line=557

import Base

def jpeg.scan.histories(xs: List<&2, JPEGComponent>, +start: U32, +end: U32, +low: U32) -> List<&2, JPEGComponent>:
  match xs:
    case Nil{}: Nil{}
    case Con{JPEGComponent{id, h, v, quant, dc, ac, predictor, bw, bh, coefficients, samples}, rest}:
      Con{JPEGComponent{id, h, v, quant, dc, ac, predictor, bw, bh, coefficients, jpeg.history.set(U32.to_nat((end - start + 1 : U32)), start, low, samples)}, jpeg.scan.histories(rest, start, end, low)}

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.add
  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=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=JPEGComponent
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.history.set