Cover.xscan.rows: def of gralha-coverage@0.1.0.1
Import: import gralha-coverage@0.1.0.1/cover.bend as Cover
Lines 1043-1047 of gralha-coverage@0.1.0.1/cover.bend: https://jend.leeeet.dev/read.txt?path=gralha-coverage@0.1.0.1/cover.bend&start_line=1043&end_line=1047

import Base

# The rows of runs of the lines (in their arrays, n of them) by exact areas,
# rows with an overlap done with `sub` scanlines.
def xscan.rows(+h: U32, lines: Array<F32> & Array<U32>, +n: U32, +sub: U32, +w: U32) -> List<&2, List<&2, Run>>:
  xscan.done(xscan.rows.go((((Array.new(F32, depth.for((w * 2 + 4 : U32), 1, 0n), 0.0), Array.new(U32, depth.for((U32.div(w, 32) + 2 : U32), 1, 0n), 0)), lines),
    XData{(w + 1 : U32), 0, {Nil{} : List<&2, List<&2, Run>>}, {Nil{} : List<&2, Piece>}, 0, n, sub}), U32.to_nat(h), 0, w))

Uses (17):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array.new
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  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.div
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.mul
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.to_nat
  https://jend.leeeet.dev/definition.txt?path=gralha-coverage@0.1.0.1/cover.bend&name=Piece
  https://jend.leeeet.dev/definition.txt?path=gralha-coverage@0.1.0.1/cover.bend&name=Run
  https://jend.leeeet.dev/definition.txt?path=gralha-coverage@0.1.0.1/cover.bend&name=XData
  https://jend.leeeet.dev/definition.txt?path=gralha-coverage@0.1.0.1/cover.bend&name=depth.for
  https://jend.leeeet.dev/definition.txt?path=gralha-coverage@0.1.0.1/cover.bend&name=xscan.done
  https://jend.leeeet.dev/definition.txt?path=gralha-coverage@0.1.0.1/cover.bend&name=xscan.rows.go