Denis Isaev 7705f82591 Update megacheck to the latest version
Also do following improvements:
  - show proper sublinter name for megacheck sublinters
  - refactor and make more simple and robust megacheck
  merging/optimizing
  - improve handling of unknown linter names in //nolint directives
  - minimize diff of our megacheck version from the upstream,
  https://github.com/golang/go/issues/29612 blocks usage of the upstream
  version
  - support the new `stylecheck` linter
  - improve tests coverage for megacheck and nolint related cases
  - update and use upstream versions of unparam and interfacer instead of forked
  ones
  - don't use golangci/tools repo anymore
  - fix newly found issues after updating linters

Also should be noted that megacheck works much faster and consumes less
memory in the newest release, therefore golangci-lint works noticeably
faster and consumes less memory for large repos.

Relates: #314
2019-01-08 21:16:15 +03:00

47 lines
937 B
Go

package golinters
import (
"context"
"mvdan.cc/unparam/check"
"github.com/golangci/golangci-lint/pkg/lint/linter"
"github.com/golangci/golangci-lint/pkg/result"
)
type Unparam struct{}
func (Unparam) Name() string {
return "unparam"
}
func (Unparam) Desc() string {
return "Reports unused function parameters"
}
func (lint Unparam) Run(ctx context.Context, lintCtx *linter.Context) ([]result.Issue, error) {
us := &lintCtx.Settings().Unparam
c := &check.Checker{}
c.CallgraphAlgorithm(us.Algo)
c.CheckExportedFuncs(us.CheckExported)
c.Packages(lintCtx.Packages)
c.ProgramSSA(lintCtx.SSAProgram)
unparamIssues, err := c.Check()
if err != nil {
return nil, err
}
var res []result.Issue
for _, i := range unparamIssues {
res = append(res, result.Issue{
Pos: lintCtx.Program.Fset.Position(i.Pos()),
Text: markIdentifiers(i.Message()),
FromLinter: lint.Name(),
})
}
return res, nil
}