load-command? ( object -- ? )

Vocabulary

macho

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the load-command class.

Definition

USING: classes.tuple.private kernel math.private slots.private ;

IN: macho

: load-command? ( object -- ? )
    dup tuple? [
        layout-of
        dup
        1
        slot
        9
        fixnum>=
        [
            9
            slot
            dup
            \ uuid_command
            eq?
            [ drop t ]
            [
                dup \ twolevel_hints_command eq?
                [ drop t ] [
                    dup \ dysymtab_command eq?
                    [ drop t ] [
                        dup \ symtab_command eq?
                        ~quotation~ ~quotation~ if
                    ] if
                ] if
            ]
            if
        ]
        [ drop f ]
        if
    ] [ drop f ] if ;