factor/library/cocoa/callback.factor

27 lines
591 B
Factor

IN: objc-FactorCallback
DEFER: FactorCallback
IN: cocoa
USING: hashtables kernel namespaces objc objc-NSObject ;
SYMBOL: callbacks
H{ } clone callbacks set-global
"NSObject" "FactorCallback" {
{ "perform:" "void" { "id" "SEL" "id" }
[ 2drop callbacks get hash call ]
}
{ "dealloc" "void" { "id" "SEL" }
[
drop
dup callbacks get remove-hash
SUPER-> [dealloc]
]
}
} { } define-objc-class
: <FactorCallback> ( quot -- id | quot: id -- )
FactorCallback [alloc] [init]
[ callbacks get set-hash ] keep ;