Date.Date.to_days.era: def of bend-time-lib@0.4.0.1
Import: import bend-time-lib@0.4.0.1/date.bend as Date
Lines 200-210 of bend-time-lib@0.4.0.1/date.bend: https://jend.leeeet.dev/read.txt?path=bend-time-lib@0.4.0.1/date.bend&start_line=200&end_line=210

import Base

def Date.to_days.era(+era: U32, +yoe: U32, doy: U32) -> U32:
  U32.add(
    U32.mul(era, 146097),
    U32.add(
      U32.sub(
        U32.add(U32.mul(yoe, 365), U32.div(yoe, 4)),
        U32.div(yoe, 100)
      ),
      doy
    )
  )

Uses (5):
  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.sub