Function csv

packages/effect/src/unstable/sql/Statement.ts:715–732

(
  ...args:
    | [values: ReadonlyArray<string | Fragment>]
    | [prefix: string, values: ReadonlyArray<string | Fragment>]
)

  (values: ReadonlyArray<string | Fragment>): Fragment
  (prefix: string, values: ReadonlyArray<string | Fragment>): Fragment
} = function(
  ...args:
    | [values: ReadonlyArray<string | Fragment>]
    | [prefix: string, values: ReadonlyArray<string | Fragment>]
) {
  if (args[args.length - 1].length === 0) {
    return emptyFragment
  }

  if (args.length === 1) {
    return csvRaw(args[0])
  }

  return fragment([
    literal(`${args[0]} `),
    ...csvRaw(args[1]).segments
  ])
}

const csvRaw = join(",", false)
const emptyFragment = fragment([literal("")])