83 lines
1.8 KiB
Go
83 lines
1.8 KiB
Go
package golinters
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import (
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"sync"
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"golang.org/x/tools/go/analysis"
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"golang.org/x/tools/go/analysis/passes/buildssa"
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"mvdan.cc/interfacer/check"
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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 interfacerName = "interfacer"
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func NewInterfacer() *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: interfacerName,
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Doc: goanalysis.TheOnlyanalyzerDoc,
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Requires: []*analysis.Analyzer{buildssa.Analyzer},
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Run: func(pass *analysis.Pass) (interface{}, error) {
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issues, err := runInterfacer(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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interfacerName,
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"Linter that suggests narrower interface types",
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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.LoadModeTypesInfo)
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}
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func runInterfacer(pass *analysis.Pass) ([]goanalysis.Issue, error) {
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c := &check.Checker{}
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prog := goanalysis.MakeFakeLoaderProgram(pass)
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c.Program(prog)
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ssa := pass.ResultOf[buildssa.Analyzer].(*buildssa.SSA)
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ssaPkg := ssa.Pkg
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c.ProgramSSA(ssaPkg.Prog)
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lintIssues, err := c.Check()
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if err != nil {
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return nil, err
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}
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if len(lintIssues) == 0 {
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return nil, nil
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}
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issues := make([]goanalysis.Issue, 0, len(lintIssues))
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for _, i := range lintIssues {
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pos := pass.Fset.Position(i.Pos())
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issues = append(issues, goanalysis.NewIssue(&result.Issue{
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Pos: pos,
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Text: i.Message(),
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FromLinter: interfacerName,
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}, pass))
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}
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return issues, nil
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}
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