math sequences sequences.private ;
IN: struct-arrays
+: c-type-struct-class ( c-type -- class )
+ c-type boxed-class>> ; foldable
+
TUPLE: struct-array
{ underlying c-ptr read-only }
{ length array-capacity read-only }
-{ element-size array-capacity read-only } ;
+{ element-size array-capacity read-only }
+{ class read-only } ;
M: struct-array length length>> ;
M: struct-array byte-length [ length>> ] [ element-size>> ] bi * ;
[ nth-unsafe swap ] [ element-size>> ] bi memcpy ;
M: struct-array new-sequence
- element-size>> [ * <byte-array> ] 2keep struct-array boa ; inline
+ [ element-size>> [ * <byte-array> ] 2keep ]
+ [ class>> ] bi struct-array boa ; inline
M: struct-array resize ( n seq -- newseq )
- [ [ element-size>> * ] [ underlying>> ] bi resize ] [ element-size>> ] 2bi
+ [ [ element-size>> * ] [ underlying>> ] bi resize ]
+ [ [ element-size>> ] [ class>> ] bi ] 2bi
struct-array boa ;
: <struct-array> ( length c-type -- struct-array )
- heap-size [ * <byte-array> ] 2keep struct-array boa ; inline
+ [ heap-size [ * <byte-array> ] 2keep ]
+ [ c-type-struct-class ] bi struct-array boa ; inline
ERROR: bad-byte-array-length byte-array ;
: byte-array>struct-array ( byte-array c-type -- struct-array )
- heap-size [
+ [ heap-size [
[ dup length ] dip /mod 0 =
[ drop bad-byte-array-length ] unless
- ] keep struct-array boa ; inline
+ ] keep ] [ c-type-struct-class ] bi struct-array boa ; inline
: <direct-struct-array> ( alien length c-type -- struct-array )
- heap-size struct-array boa ; inline
+ [ heap-size ] [ c-type-struct-class ] bi struct-array boa ; inline
: malloc-struct-array ( length c-type -- struct-array )
[ heap-size calloc ] 2keep <direct-struct-array> ; inline