)PX w 6TF3VTUT''*GFBUVSF w 'PSFJHO'VODUJPO*OUFSGBDF w &YQPSU3VTUDPEFTBT$DPEFT w GVODUJPOTBOETUSVDUT
FUD w #SJEHFUIF$DPEFTJOUP4XJGU w FH
7JBCSJEHJOHIFBEFS I
w $MPOFUIFJNQMFNFOUBUJPOXSJUUFOCZ4XJGU w 4PpOJTIFE3VTUDPEFCBTFJT4XJGUZ w 6TFDMBTTFTBOETIBSFUIFJSJOTUBODFTCFUXFFO DPMMFDUJPOPCKFDUT w 3FQSPEVDFTJNQMZUIFBCPWFXJUI3VTUCSJOHT PWFSIFBETBUSVOUJNF w #SJEHJOH4XJGUUP$NBZCFBCMFUPCFFYQFOTJWF
struct Rc w 3FGFSFODF$PVOUFE w Arc"VUPNBUJD"UPNJDBMMZ3FGFSFODF$PVOUFE w 4IBSFBWBMVFCFUXFFOUXPPSNPSFPXOFST w 3FBMJ[FGFBUVSFTMJLFBOJNNVUBCMFDMBTT w #SJOHPWFSIFBEBUSVOUJNF
struct RefCell • struct Cell • Rc> w 3FBMJ[FGFBUVSFTMJLFBDMBTTNVUBUJPO w *O4XJGU
BTJNJMBSUPBOPCKFDUPGBDMBTTTUPSFE CZletQSPQFSUZXJUIJOBTUSVDU w 1VUP⒎CPSSPXDIFDLVOUJMSVOUJNF w #SJOHPWFSIFBEBUSVOUJNF