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Programming language: Go
License: MIT License
Tags:
Code Analysis
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README
usestdlibvars
A linter that detect the possibility to use variables/constants from the Go standard library.
Install
go install github.com/sashamelentyev/usestdlibvars
Usage
$ usestdlibvars -h
usestdlibvars: A linter that detect the possibility to use variables/constants from the Go standard library.
Usage: usestdlibvars [-flag] [package]
Flags:
-V print version and exit
-all
no effect (deprecated)
-c int
display offending line with this many lines of context (default -1)
-constant-kind
suggest the use of constant.Kind.String()
-cpuprofile string
write CPU profile to this file
-crypto-hash
suggest the use of crypto.Hash.String()
-debug string
debug flags, any subset of "fpstv"
-fix
apply all suggested fixes
-flags
print analyzer flags in JSON
-http-method
suggest the use of http.MethodXX (default true)
-http-status-code
suggest the use of http.StatusXX (default true)
-json
emit JSON output
-memprofile string
write memory profile to this file
-os-dev-null
suggest the use of os.DevNull
-rpc-default-path
suggest the use of rpc.DefaultXXPath
-source
no effect (deprecated)
-sql-isolation-level
suggest the use of sql.LevelXX.String()
-tags string
no effect (deprecated)
-test
indicates whether test files should be analyzed, too (default true)
-time-layout
suggest the use of time.Layout
-time-month
suggest the use of time.Month.String()
-time-weekday
suggest the use of time.Weekday.String()
-tls-signature-scheme
suggest the use of tls.SignatureScheme.String()
-trace string
write trace log to this file
-v no effect (deprecated)
Examples
package response
import (
"bytes"
"encoding/json"
"net/http"
)
// JSON marshals v to JSON, automatically escaping HTML,
// setting the Content-Type header as "application/json; charset=utf-8",
// sends an HTTP response header with the provided statusCode and
// writes the marshaled v as bytes to the connection as part of an HTTP reply.
func JSON(w http.ResponseWriter, statusCode int, v any) {
var buf bytes.Buffer
enc := json.NewEncoder(&buf)
enc.SetEscapeHTML(true)
if err := enc.Encode(v); err != nil {
http.Error(w, err.Error(), 500)
return
}
w.Header().Set("Content-Type", "application/json; charset=utf-8")
w.WriteHeader(statusCode)
if _, err := w.Write(buf.Bytes()); err != nil {
http.Error(w, err.Error(), 500)
return
}
}
usestdlibvars ./...
response.go:18:30: "500" can be replaced by http.StatusInternalServerError
response.go:24:30: "500" can be replaced by http.StatusInternalServerError