echo/examples/algos/call.echo at main · csfh/echo · GitHub

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; Call / result overhead — real tiny helpers + normal benches.
; Run: xo run examples/algos/call.echo

/ std/io
/ std/str
/ std/test

$ empty = () {
    ^ 0
}

$ identity = (x) {
    ^ x
}

; Result-shaped ok (both ^ and ! present → result ABI).
$ ok_value = () {
    ^ 42
    ! "unused"
}

io.print(str.from_int(empty()))
io.print(str.from_int(identity(7)))
| ok_value() {
    $ v {
        io.print(str.from_int(v))
    }
    ! e {
        io.print(e)
    }
}

test.bench("empty_call", () {
    $ x = empty()
})

test.bench("identity_call", () {
    $ x = identity(1)
})

test.bench("result_ok_match", () {
    | ok_value() {
        $ v {}
        ! e {}
    }
})

\ empty, identity, ok_value