76 lines
1.7 KiB
Go
76 lines
1.7 KiB
Go
package gochecknoinits
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import (
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"fmt"
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"go/ast"
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"go/token"
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"sync"
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"golang.org/x/tools/go/analysis"
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"github.com/golangci/golangci-lint/pkg/goanalysis"
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"github.com/golangci/golangci-lint/pkg/golinters/internal"
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"github.com/golangci/golangci-lint/pkg/lint/linter"
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"github.com/golangci/golangci-lint/pkg/result"
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)
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const linterName = "gochecknoinits"
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func New() *goanalysis.Linter {
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var mu sync.Mutex
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var resIssues []goanalysis.Issue
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analyzer := &analysis.Analyzer{
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Name: linterName,
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Doc: goanalysis.TheOnlyanalyzerDoc,
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Run: func(pass *analysis.Pass) (any, error) {
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var res []goanalysis.Issue
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for _, file := range pass.Files {
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fileIssues := checkFileForInits(file, pass.Fset)
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for i := range fileIssues {
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res = append(res, goanalysis.NewIssue(&fileIssues[i], pass))
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}
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}
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if len(res) == 0 {
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return nil, nil
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}
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mu.Lock()
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resIssues = append(resIssues, res...)
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mu.Unlock()
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return nil, nil
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},
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}
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return goanalysis.NewLinter(
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linterName,
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"Checks that no init functions are present in Go code",
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[]*analysis.Analyzer{analyzer},
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nil,
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).WithIssuesReporter(func(*linter.Context) []goanalysis.Issue {
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return resIssues
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}).WithLoadMode(goanalysis.LoadModeSyntax)
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}
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func checkFileForInits(f *ast.File, fset *token.FileSet) []result.Issue {
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var res []result.Issue
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for _, decl := range f.Decls {
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funcDecl, ok := decl.(*ast.FuncDecl)
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if !ok {
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continue
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}
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fnName := funcDecl.Name.Name
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if fnName == "init" && funcDecl.Recv.NumFields() == 0 {
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res = append(res, result.Issue{
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Pos: fset.Position(funcDecl.Pos()),
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Text: fmt.Sprintf("don't use %s function", internal.FormatCode(fnName, nil)),
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FromLinter: linterName,
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})
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}
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}
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return res
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}
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