github.com/elek/golangci-lint@v1.42.2-0.20211208090441-c05b7fcb3a9a/pkg/golinters/golint.go (about)

     1  package golinters
     2  
     3  import (
     4  	"fmt"
     5  	"go/ast"
     6  	"go/token"
     7  	"go/types"
     8  	"sync"
     9  
    10  	lintAPI "github.com/golangci/lint-1"
    11  	"golang.org/x/tools/go/analysis"
    12  
    13  	"github.com/elek/golangci-lint/pkg/golinters/goanalysis"
    14  	"github.com/elek/golangci-lint/pkg/lint/linter"
    15  	"github.com/elek/golangci-lint/pkg/result"
    16  )
    17  
    18  func golintProcessPkg(minConfidence float64, files []*ast.File, fset *token.FileSet,
    19  	typesPkg *types.Package, typesInfo *types.Info) ([]result.Issue, error) {
    20  	l := new(lintAPI.Linter)
    21  	ps, err := l.LintPkg(files, fset, typesPkg, typesInfo)
    22  	if err != nil {
    23  		return nil, fmt.Errorf("can't lint %d files: %s", len(files), err)
    24  	}
    25  
    26  	if len(ps) == 0 {
    27  		return nil, nil
    28  	}
    29  
    30  	issues := make([]result.Issue, 0, len(ps)) // This is worst case
    31  	for idx := range ps {
    32  		if ps[idx].Confidence >= minConfidence {
    33  			issues = append(issues, result.Issue{
    34  				Pos:        ps[idx].Position,
    35  				Text:       ps[idx].Text,
    36  				FromLinter: golintName,
    37  			})
    38  			// TODO: use p.Link and p.Category
    39  		}
    40  	}
    41  
    42  	return issues, nil
    43  }
    44  
    45  const golintName = "golint"
    46  
    47  func NewGolint() *goanalysis.Linter {
    48  	var mu sync.Mutex
    49  	var resIssues []goanalysis.Issue
    50  
    51  	analyzer := &analysis.Analyzer{
    52  		Name: golintName,
    53  		Doc:  goanalysis.TheOnlyanalyzerDoc,
    54  	}
    55  	return goanalysis.NewLinter(
    56  		golintName,
    57  		"Golint differs from gofmt. Gofmt reformats Go source code, whereas golint prints out style mistakes",
    58  		[]*analysis.Analyzer{analyzer},
    59  		nil,
    60  	).WithContextSetter(func(lintCtx *linter.Context) {
    61  		analyzer.Run = func(pass *analysis.Pass) (interface{}, error) {
    62  			res, err := golintProcessPkg(lintCtx.Settings().Golint.MinConfidence, pass.Files, pass.Fset, pass.Pkg, pass.TypesInfo)
    63  			if err != nil || len(res) == 0 {
    64  				return nil, err
    65  			}
    66  
    67  			mu.Lock()
    68  			for i := range res {
    69  				resIssues = append(resIssues, goanalysis.NewIssue(&res[i], pass))
    70  			}
    71  			mu.Unlock()
    72  
    73  			return nil, nil
    74  		}
    75  	}).WithIssuesReporter(func(*linter.Context) []goanalysis.Issue {
    76  		return resIssues
    77  	}).WithLoadMode(goanalysis.LoadModeTypesInfo)
    78  }