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revive/testdata/use_fmt_print.go
chavacava 6becd540e4 feature: new rule use-fmt-print (#1389)
print and println built-in functions are not recommended for use-cases other than language boostraping and are not guaranteed to stay in the language.

This commit adds a new rule, use-fmt-print, that spots uses of print and println, and recommends using their fmt equivalents.
2025-05-28 12:57:37 +02:00

22 lines
617 B
Go

package fixtures
import (
"fmt"
)
type useFmtPrintT struct{}
func (useFmtPrintT) print(s string) {}
func (useFmtPrintT) println(s string) {}
func useFmtPrint() {
fmt.Println("just testing")
fmt.Print("just testing")
t := useFmtPrintT{}
t.print("just testing")
t.println("just testing")
println("just testing", something) // MATCH /avoid using built-in function "println", replace it by "fmt.Fprintln(os.Stderr, "just testing", something)"/
print("just testing", some, thing+1) // MATCH /avoid using built-in function "print", replace it by "fmt.Fprint(os.Stderr, "just testing", some, thing + 1)"/
}