81 lines
1.8 KiB
Go
81 lines
1.8 KiB
Go
package golinters
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import (
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"strings"
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"sync"
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gochecksumtype "github.com/alecthomas/go-check-sumtype"
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"golang.org/x/tools/go/analysis"
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"golang.org/x/tools/go/packages"
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"github.com/golangci/golangci-lint/pkg/golinters/goanalysis"
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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 goCheckSumTypeName = "gochecksumtype"
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func NewGoCheckSumType() *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: goCheckSumTypeName,
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Doc: goanalysis.TheOnlyanalyzerDoc,
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Run: func(pass *analysis.Pass) (any, error) {
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issues, err := runGoCheckSumType(pass)
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if err != nil {
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return nil, err
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}
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if len(issues) == 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, issues...)
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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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goCheckSumTypeName,
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`Run exhaustiveness checks on Go "sum types"`,
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[]*analysis.Analyzer{analyzer},
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nil,
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).WithIssuesReporter(func(ctx *linter.Context) []goanalysis.Issue {
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return resIssues
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}).WithLoadMode(goanalysis.LoadModeTypesInfo)
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}
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func runGoCheckSumType(pass *analysis.Pass) ([]goanalysis.Issue, error) {
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var resIssues []goanalysis.Issue
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pkg := &packages.Package{
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Fset: pass.Fset,
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Syntax: pass.Files,
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Types: pass.Pkg,
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TypesInfo: pass.TypesInfo,
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}
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var unknownError error
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errors := gochecksumtype.Run([]*packages.Package{pkg})
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for _, err := range errors {
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err, ok := err.(gochecksumtype.Error)
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if !ok {
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unknownError = err
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continue
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}
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resIssues = append(resIssues, goanalysis.NewIssue(&result.Issue{
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FromLinter: goCheckSumTypeName,
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Text: strings.TrimPrefix(err.Error(), err.Pos().String()+": "),
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Pos: err.Pos(),
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}, pass))
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}
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return resIssues, unknownError
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}
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