aqua-playground/aqua/examples/stream.aqua

import "@fluencelabs/aqua-lib/builtin.aqua"

service Stringer("stringer-id"):
    returnString: string -> string

func checkStreams(ch: []string) -> []string:
    stream: *string
    stream <- Stringer.returnString("first")
    stream <- Stringer.returnString("second")
    for b <- ch:
        stream <- Stringer.returnString(b)
    <- stream

func getStream() -> *u32:
    nums = *[1,2,3,4]
    <- nums

func returnStreamFromFunc() -> *u32:
    nums <- getStream()
    <- nums

func stringNil() -> *string:
    valueNil: *string
    <- valueNil

func returnNil() -> *string:
    relayNil <- stringNil()
    <- relayNil

func stringNone() -> ?string:
    valueNone: ?string
    <- valueNone

func returnNone() -> ?string:
    relayNone <- stringNone()
    <- relayNone