question: public void calculate_scores ( ) { score = 0 ; if ( contents . length == 0 ) { API api = API . v ( ) ; Set < InfoKind > source = api . getSourceInfoKinds ( method ) ; Set < InfoKind > sink = api . getSinkInfoKinds ( method ) ; if ( is_system ( method ) ) { if ( api . isSafeMethod ( method ) ) score = 0 ; else if ( api . isSpecMethod ( method ) ) score = 5 ; else if ( api . isBannedMethod ( method ) ) score = 6 ; if ( ! source . isEmpty ( ) ) score += 1 ; else if ( ! sink . isEmpty ( ) ) score += 2 ; } return ; } for ( CallChainInfo cci : contents ) { cci . calculate_scores ( ) ; calls += cci . calls ; syscalls += cci . syscalls ; if ( cci . score > score ) score = cci . score ; } }
target:  Calculate the score for each entry in the call chain 