//golangcitest:args -Eperfsprint package testdata import ( "fmt" ) func TestPerfsprint() { var ( s string err error b bool i int i64 int64 ui uint ) fmt.Sprintf("%s", s) // want "fmt.Sprintf can be replaced with just using the string" fmt.Sprint(s) // want "fmt.Sprint can be replaced with just using the string" fmt.Sprintf("%s", err) fmt.Sprint(err) fmt.Sprintf("%t", b) // want "fmt.Sprintf can be replaced with faster strconv.FormatBool" fmt.Sprint(b) // want "fmt.Sprint can be replaced with faster strconv.FormatBool" fmt.Sprintf("%d", i) // want "fmt.Sprintf can be replaced with faster strconv.Itoa" fmt.Sprint(i) // want "fmt.Sprint can be replaced with faster strconv.Itoa" fmt.Sprintf("%d", i64) // want "fmt.Sprintf can be replaced with faster strconv.FormatInt" fmt.Sprint(i64) // want "fmt.Sprint can be replaced with faster strconv.FormatInt" fmt.Sprintf("%d", ui) // want "fmt.Sprintf can be replaced with faster strconv.FormatUint" fmt.Sprint(ui) // want "fmt.Sprint can be replaced with faster strconv.FormatUint" fmt.Sprintf("%x", []byte{'a'}) // want "fmt.Sprintf can be replaced with faster hex.EncodeToString" fmt.Errorf("hello") // want "fmt.Errorf can be replaced with errors.New" fmt.Sprintf("Hello %s", s) // want "fmt.Sprintf can be replaced with string concatenation" fmt.Sprint("test", 42) fmt.Sprint(42, 42) fmt.Sprintf("test") // want "fmt.Sprintf can be replaced with just using the string" fmt.Sprintf("%v") // want "fmt.Sprintf can be replaced with just using the string" fmt.Sprintf("%d") // want "fmt.Sprintf can be replaced with just using the string" fmt.Sprintf("%d", 42, 42) fmt.Sprintf("%#d", 42) fmt.Sprintf("value %d", 42) fmt.Sprintf("val%d", 42) fmt.Sprintf("%s %v", "hello", "world") fmt.Sprintf("%#v", 42) fmt.Sprintf("%T", struct{ string }{}) fmt.Sprintf("%%v", 42) fmt.Sprintf("%3d", 42) fmt.Sprintf("% d", 42) fmt.Sprintf("%-10d", 42) fmt.Sprintf("%[2]d %[1]d\n", 11, 22) fmt.Sprintf("%[3]*.[2]*[1]f", 12.0, 2, 6) fmt.Sprintf("%d %d %#[1]x %#x", 16, 17) }