79 lines
1.9 KiB
Go
79 lines
1.9 KiB
Go
|
// unused reports unused identifiers (types, functions, ...) in your
|
||
|
|
// code.
|
||
|
|
package main // import "honnef.co/go/tools/cmd/unused"
|
||
|
|
|
||
|
|
import (
|
||
|
|
"log"
|
||
|
|
"os"
|
||
|
|
|
||
|
|
"honnef.co/go/tools/lint/lintutil"
|
||
|
|
"honnef.co/go/tools/unused"
|
||
|
|
)
|
||
|
|
|
||
|
|
var (
|
||
|
|
fConstants bool
|
||
|
|
fFields bool
|
||
|
|
fFunctions bool
|
||
|
|
fTypes bool
|
||
|
|
fVariables bool
|
||
|
|
fDebug string
|
||
|
|
fWholeProgram bool
|
||
|
|
fReflection bool
|
||
|
|
)
|
||
|
|
|
||
|
|
func newChecker(mode unused.CheckMode) *unused.Checker {
|
||
|
|
checker := unused.NewChecker(mode)
|
||
|
|
|
||
|
|
if fDebug != "" {
|
||
|
|
debug, err := os.Create(fDebug)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal("couldn't open debug file:", err)
|
||
|
|
}
|
||
|
|
checker.Debug = debug
|
||
|
|
}
|
||
|
|
|
||
|
|
checker.WholeProgram = fWholeProgram
|
||
|
|
checker.ConsiderReflection = fReflection
|
||
|
|
return checker
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
log.SetFlags(0)
|
||
|
|
|
||
|
|
fs := lintutil.FlagSet("unused")
|
||
|
|
fs.BoolVar(&fConstants, "consts", true, "Report unused constants")
|
||
|
|
fs.BoolVar(&fFields, "fields", true, "Report unused fields")
|
||
|
|
fs.BoolVar(&fFunctions, "funcs", true, "Report unused functions and methods")
|
||
|
|
fs.BoolVar(&fTypes, "types", true, "Report unused types")
|
||
|
|
fs.BoolVar(&fVariables, "vars", true, "Report unused variables")
|
||
|
|
fs.StringVar(&fDebug, "debug", "", "Write a debug graph to `file`. Existing files will be overwritten.")
|
||
|
|
fs.BoolVar(&fWholeProgram, "exported", false, "Treat arguments as a program and report unused exported identifiers")
|
||
|
|
fs.BoolVar(&fReflection, "reflect", true, "Consider identifiers as used when it's likely they'll be accessed via reflection")
|
||
|
|
fs.Parse(os.Args[1:])
|
||
|
|
|
||
|
|
var mode unused.CheckMode
|
||
|
|
if fConstants {
|
||
|
|
mode |= unused.CheckConstants
|
||
|
|
}
|
||
|
|
if fFields {
|
||
|
|
mode |= unused.CheckFields
|
||
|
|
}
|
||
|
|
if fFunctions {
|
||
|
|
mode |= unused.CheckFunctions
|
||
|
|
}
|
||
|
|
if fTypes {
|
||
|
|
mode |= unused.CheckTypes
|
||
|
|
}
|
||
|
|
if fVariables {
|
||
|
|
mode |= unused.CheckVariables
|
||
|
|
}
|
||
|
|
|
||
|
|
checker := newChecker(mode)
|
||
|
|
l := unused.NewLintChecker(checker)
|
||
|
|
cfg := lintutil.CheckerConfig{
|
||
|
|
Checker: l,
|
||
|
|
ExitNonZero: true,
|
||
|
|
}
|
||
|
|
lintutil.ProcessFlagSet([]lintutil.CheckerConfig{cfg}, fs)
|
||
|
|
}
|