github.com/serversong/goreporter@v0.0.0-20200325104552-3cfaf44fd178/linters/simpler/testdata/LintRedundantSprintf.go (about)

     1  package pkg
     2  
     3  import "fmt"
     4  
     5  type T1 string
     6  type T2 T1
     7  type T3 int
     8  type T4 int
     9  type T5 int
    10  type T6 string
    11  
    12  func (T3) String() string        { return "" }
    13  func (T6) String() string        { return "" }
    14  func (T4) String(arg int) string { return "" }
    15  func (T5) String()               {}
    16  
    17  func fn() {
    18  	var t1 T1
    19  	var t2 T2
    20  	var t3 T3
    21  	var t4 T4
    22  	var t5 T5
    23  	var t6 T6
    24  	_ = fmt.Sprintf("%s", "test")      // MATCH "is already a string"
    25  	_ = fmt.Sprintf("%s", t1)          // MATCH "is a string"
    26  	_ = fmt.Sprintf("%s", t2)          // MATCH "is a string"
    27  	_ = fmt.Sprintf("%s", t3)          // MATCH "should use String() instead of fmt.Sprintf"
    28  	_ = fmt.Sprintf("%s", t3.String()) // MATCH "is already a string"
    29  	_ = fmt.Sprintf("%s", t4)
    30  	_ = fmt.Sprintf("%s", t5)
    31  	_ = fmt.Sprintf("%s %s", t1, t2)
    32  	_ = fmt.Sprintf("%v", t1)
    33  	_ = fmt.Sprintf("%s", t6) // MATCH "should use String() instead of fmt.Sprintf"
    34  }