checksum? ( object -- ? )

Vocabulary

checksums

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the checksum class.

Definition

USING: checksums.fnv1 checksums.internet checksums.khash
checksums.metrohash checksums.murmur checksums.null
checksums.xxhash classes.tuple.private kernel slots.private ;

IN: checksums

: checksum? ( object -- ? )
    dup dup tuple? [
        layout-of
        7
        slot
        dup
        \ khash64
        eq?
        [ drop t ]
        [
            dup \ xxhash eq?
            [ drop t ] [
                dup \ murmur3-32 eq?
                [ drop t ] [
                    dup \ metrohash-128 eq?
                    [ drop t ] [ \ metrohash-64 eq? ] if
                ] if
            ] if
        ]
        if
    ] [ drop f ] if
    [ drop t ] [
        dup null?
        [ drop t ] [
            dup internet?
            [ drop t ] [
                dup fnv1a-1024?
                [ drop t ] [
                    dup fnv1-1024?
                    [ drop t ] [
                        dup fnv1a-512? ~quotation~ ~quotation~
                        if
                    ] if
                ] if
            ] if
        ] if
    ] if ;