# How is transient keyword used in Java? p: Project = input; TransientTotal: output sum of int; TransientMax: output maximum(1) of string weight int; TransientMin: output minimum(1) of string weight int; TransientMean: output mean of int; count := 0; s: stack of int; visit(p, visitor { before node: CodeRepository -> { # only look at the latest snapshot # and only include Java files snapshot := getsnapshot(node, "SOURCE_JAVA_JLS"); foreach (i: int; def(snapshot[i])) visit(snapshot[i]); stop; } before node: Declaration -> { # only interested in fields, which only occur inside (anonymous) classes if (node.kind == TypeKind.CLASS || node.kind == TypeKind.ANONYMOUS) { # store old value push(s, count); count = 0; # find uses and increment counter foreach (i: int; def(node.fields[i])) foreach (j: int; node.fields[i].modifiers[j].kind == ModifierKind.OTHER && node.fields[i].modifiers[j].other == "transient") count++; } else stop; } after node: Declaration -> { # output result TransientTotal << count; TransientMax << p.id weight count; TransientMin << p.id weight count; TransientMean << count; # restore previous value count = pop(s); } });

TransientMax[] = 219562, 96.0
TransientMean[] = 0.019492333616820987
TransientMin[] = 100007, 0.0
TransientTotal[] = 199447