Method attachLine

lib/web/CodeMirror/src/model/mark_text.js:133–140

(line)

  }

  attachLine(line) {
    if (!this.lines.length && this.doc.cm) {
      let op = this.doc.cm.curOp
      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
        (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this)
    }
    this.lines.push(line)
  }

  detachLine(line) {
    this.lines.splice(indexOf(this.lines, line), 1)