--- /dev/null
-USING: alien alien.c-types windows.com.syntax
++USING: alien alien.c-types windows.com.syntax init
+ windows.com.syntax.private windows.com continuations kernel
+ namespaces windows.ole32 libc vocabs assocs accessors arrays
+ sequences quotations combinators math words compiler.units
-destructors fry math.parser generalizations ;
++destructors fry math.parser generalizations sets ;
+ IN: windows.com.wrapper
+
-TUPLE: com-wrapper vtbls disposed ;
++TUPLE: com-wrapper callbacks vtbls disposed ;
+
+ <PRIVATE
+
+ SYMBOL: +wrapped-objects+
+ +wrapped-objects+ get-global
+ [ H{ } +wrapped-objects+ set-global ]
+ unless
+
++SYMBOL: +live-wrappers+
+++live-wrappers+ get-global
++[ V{ } +live-wrappers+ set-global ]
++unless
++
+ SYMBOL: +vtbl-counter+
+ +vtbl-counter+ get-global
+ [ 0 +vtbl-counter+ set-global ]
+ unless
+
+ "windows.com.wrapper.callbacks" create-vocab drop
+
+ : (next-vtbl-counter) ( -- n )
+ +vtbl-counter+ [ 1+ dup ] change ;
+
+ : com-unwrap ( wrapped -- object )
+ +wrapped-objects+ get-global at*
+ [ "invalid COM wrapping pointer" throw ] unless ;
+
+ : (free-wrapped-object) ( wrapped -- )
+ [ +wrapped-objects+ get-global delete-at ] keep
+ free ;
+
+ : (query-interface-cases) ( interfaces -- cases )
+ [
+ [ find-com-interface-definition family-tree [ iid>> ] map ] dip
+ 1quotation [ 2array ] curry map
+ ] map-index concat
+ [ drop f ] suffix ;
+
+ : (make-query-interface) ( interfaces -- quot )
+ (query-interface-cases)
+ '[
+ swap 16 memory>byte-array
+ , case
+ [
+ "void*" heap-size * rot <displaced-alien> com-add-ref
+ 0 rot set-void*-nth S_OK
+ ] [ nip f 0 rot set-void*-nth E_NOINTERFACE ] if*
+ ] ;
+
+ : (make-add-ref) ( interfaces -- quot )
+ length "void*" heap-size * '[
+ , swap <displaced-alien>
+ 0 over ulong-nth
+ 1+ [ 0 rot set-ulong-nth ] keep
+ ] ;
+
+ : (make-release) ( interfaces -- quot )
+ length "void*" heap-size * '[
+ , over <displaced-alien>
+ 0 over ulong-nth
+ 1- [ 0 rot set-ulong-nth ] keep
+ dup zero? [ swap (free-wrapped-object) ] [ nip ] if
+ ] ;
+
+ : (make-iunknown-methods) ( interfaces -- quots )
+ [ (make-query-interface) ]
+ [ (make-add-ref) ]
+ [ (make-release) ] tri
+ 3array ;
+
+ : (thunk) ( n -- quot )
+ dup 0 =
+ [ drop [ ] ]
+ [ "void*" heap-size neg * '[ , swap <displaced-alien> ] ]
+ if ;
+
+ : (thunked-quots) ( quots iunknown-methods thunk -- {thunk,quot}s )
+ [ '[ , '[ @ com-unwrap ] [ swap 2array ] curry map ] ]
+ [ '[ , [ swap 2array ] curry map ] ] bi bi*
+ swap append ;
+
-: compile-alien-callback ( word return parameters abi quot -- alien )
++: compile-alien-callback ( word return parameters abi quot -- word )
+ '[ , , , , alien-callback ]
+ [ [ (( -- alien )) define-declared ] pick slip ]
- with-compilation-unit
- execute ;
++ with-compilation-unit ;
+
-: (byte-array-to-malloced-buffer) ( byte-array -- alien )
++: byte-array>malloc ( byte-array -- alien )
+ [ byte-length malloc ] [ over byte-array>memory ] bi ;
+
+ : (callback-word) ( function-name interface-name counter -- word )
+ [ "::" rot 3append "-callback-" ] dip number>string 3append
+ "windows.com.wrapper.callbacks" create ;
+
+ : (finish-thunk) ( param-count thunk quot -- thunked-quot )
+ [ dup empty? [ 2drop [ ] ] [ swap 1- '[ , , ndip ] ] if ]
+ dip compose ;
+
-: (make-vtbl) ( interface-name quots iunknown-methods n -- vtbl )
++: (make-interface-callbacks) ( interface-name quots iunknown-methods n -- words )
+ (thunk) (thunked-quots)
+ swap [ find-com-interface-definition family-tree-functions ]
+ keep (next-vtbl-counter) '[
+ swap [
+ [ name>> , , (callback-word) ]
+ [ return>> ] [
+ parameters>>
+ [ [ first ] map ]
+ [ length ] bi
+ ] tri
+ ] [
+ first2 (finish-thunk)
+ ] bi*
+ "stdcall" swap compile-alien-callback
- ] 2map >c-void*-array
- (byte-array-to-malloced-buffer) ;
++ ] 2map ;
+
-: (make-vtbls) ( implementations -- vtbls )
++: (make-callbacks) ( implementations -- sequence )
+ dup [ first ] map (make-iunknown-methods)
- [ >r >r first2 r> r> swap (make-vtbl) ] curry map-index ;
++ [ >r >r first2 r> r> swap (make-interface-callbacks) ]
++ curry map-index ;
+
+ : (malloc-wrapped-object) ( wrapper -- wrapped-object )
+ vtbls>> length "void*" heap-size *
+ [ "ulong" heap-size + malloc ] keep
+ over <displaced-alien>
+ 1 0 rot set-ulong-nth ;
+
++: (callbacks>vtbl) ( callbacks -- vtbl )
++ [ execute ] map >c-void*-array byte-array>malloc ;
++: (callbacks>vtbls) ( callbacks -- vtbls )
++ [ (callbacks>vtbl) ] map ;
++
++: (allocate-wrapper) ( wrapper -- )
++ dup callbacks>> (callbacks>vtbls) >>vtbls
++ f >>disposed drop ;
++
++: (init-hook) ( -- )
++ +live-wrappers+ get-global [ (allocate-wrapper) ] each
++ H{ } +wrapped-objects+ set-global ;
++
++[ (init-hook) ] "windows.com.wrapper" add-init-hook
++
+ PRIVATE>
+
++: allocate-wrapper ( wrapper -- )
++ [ (allocate-wrapper) ]
++ [ +live-wrappers+ get adjoin ] bi ;
++
+ : <com-wrapper> ( implementations -- wrapper )
- (make-vtbls) f com-wrapper boa ;
++ (make-callbacks) f f com-wrapper boa
++ dup allocate-wrapper ;
+
+ M: com-wrapper dispose*
- vtbls>> [ free ] each ;
++ [ [ free ] each f ] change-vtbls
++ +live-wrappers+ get-global delete ;
+
+ : com-wrap ( object wrapper -- wrapped-object )
+ [ vtbls>> ] [ (malloc-wrapped-object) ] bi
+ [ [ set-void*-nth ] curry each-index ] keep
+ [ +wrapped-objects+ get-global set-at ] keep ;