east Function – makeInlineCursor

const makeInlineCursor: (
  max: number,
  align: Alignment,
) => {
  push:
  (
    advance: number,
    trim: number,
    hard: number,
    cross: number,
    base: number,
    descent: number,
    xHeight: number,
  ) => void,
  flush: (x: number) => void,
  gather:
  (
    reduce: (
      start: number,
      end: number,
      gap: number,
      lead: number,
      count: number,
      cross: number,
      ascent: number,
      descent: number,
      xHeight: number,
      index: number,
    ) => void,
  ) => Float32Array,
}

Source

packages / workbench / src / text / cursor.ts