package testdata import ( "log" "net/http" ) func goodHTTPGet() { res, err := http.Get("http://foo.com") if err != nil { log.Fatal(err) } defer res.Body.Close() } func badHTTPGet() { res, err := http.Get("http://foo.com") defer res.Body.Close() // ERROR "using res before checking for errors" if err != nil { log.Fatal(err) } } func badHTTPHead() { res, err := http.Head("http://foo.com") defer res.Body.Close() // ERROR "using res before checking for errors" if err != nil { log.Fatal(err) } } func goodClientGet() { client := http.DefaultClient res, err := client.Get("http://foo.com") if err != nil { log.Fatal(err) } defer res.Body.Close() } func badClientPtrGet() { client := http.DefaultClient resp, err := client.Get("http://foo.com") defer resp.Body.Close() // ERROR "using resp before checking for errors" if err != nil { log.Fatal(err) } } func badClientGet() { client := http.Client{} resp, err := client.Get("http://foo.com") defer resp.Body.Close() // ERROR "using resp before checking for errors" if err != nil { log.Fatal(err) } } func badClientPtrDo() { client := http.DefaultClient req, err := http.NewRequest("GET", "http://foo.com", nil) if err != nil { log.Fatal(err) } resp, err := client.Do(req) defer resp.Body.Close() // ERROR "using resp before checking for errors" if err != nil { log.Fatal(err) } } func badClientDo() { var client http.Client req, err := http.NewRequest("GET", "http://foo.com", nil) if err != nil { log.Fatal(err) } resp, err := client.Do(req) defer resp.Body.Close() // ERROR "using resp before checking for errors" if err != nil { log.Fatal(err) } }