go/src/go/printer/performance_test.go

var fileNode …

var fileSize …

var declNode …

var declSize …

func testprint(out io.Writer, node ast.Node) { … }

// cannot initialize in init because (printer) Fprint launches goroutines.
func initialize() { … }

func BenchmarkPrintFile(b *testing.B) { … }

func BenchmarkPrintDecl(b *testing.B) { … }