github.com/trigonella/golangci-lint@v1.10.1/pkg/golinters/unparam.go (about)

     1  package golinters
     2  
     3  import (
     4  	"context"
     5  
     6  	"github.com/golangci/golangci-lint/pkg/lint/linter"
     7  	"github.com/golangci/golangci-lint/pkg/result"
     8  	"mvdan.cc/unparam/check"
     9  )
    10  
    11  type Unparam struct{}
    12  
    13  func (Unparam) Name() string {
    14  	return "unparam"
    15  }
    16  
    17  func (Unparam) Desc() string {
    18  	return "Reports unused function parameters"
    19  }
    20  
    21  func (lint Unparam) Run(ctx context.Context, lintCtx *linter.Context) ([]result.Issue, error) {
    22  	us := &lintCtx.Settings().Unparam
    23  
    24  	c := &check.Checker{}
    25  	c.CallgraphAlgorithm(us.Algo)
    26  	c.CheckExportedFuncs(us.CheckExported)
    27  	c.Program(lintCtx.Program)
    28  	c.ProgramSSA(lintCtx.SSAProgram)
    29  
    30  	unparamIssues, err := c.Check()
    31  	if err != nil {
    32  		return nil, err
    33  	}
    34  
    35  	var res []result.Issue
    36  	for _, i := range unparamIssues {
    37  		res = append(res, result.Issue{
    38  			Pos:        lintCtx.Program.Fset.Position(i.Pos()),
    39  			Text:       markIdentifiers(i.Message()),
    40  			FromLinter: lint.Name(),
    41  		})
    42  	}
    43  
    44  	return res, nil
    45  }