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unconvert.go
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unconvert.go
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package unconvert
import (
"sync"
"github.com/golangci/unconvert"
"golang.org/x/tools/go/analysis"
"github.com/golangci/golangci-lint/pkg/config"
"github.com/golangci/golangci-lint/pkg/goanalysis"
"github.com/golangci/golangci-lint/pkg/lint/linter"
"github.com/golangci/golangci-lint/pkg/result"
)
const linterName = "unconvert"
func New(settings *config.UnconvertSettings) *goanalysis.Linter {
var mu sync.Mutex
var resIssues []goanalysis.Issue
analyzer := &analysis.Analyzer{
Name: linterName,
Doc: goanalysis.TheOnlyanalyzerDoc,
Run: func(pass *analysis.Pass) (any, error) {
issues := runUnconvert(pass, settings)
if len(issues) == 0 {
return nil, nil
}
mu.Lock()
resIssues = append(resIssues, issues...)
mu.Unlock()
return nil, nil
},
}
return goanalysis.NewLinter(
linterName,
"Remove unnecessary type conversions",
[]*analysis.Analyzer{analyzer},
nil,
).WithIssuesReporter(func(*linter.Context) []goanalysis.Issue {
return resIssues
}).WithLoadMode(goanalysis.LoadModeTypesInfo)
}
func runUnconvert(pass *analysis.Pass, settings *config.UnconvertSettings) []goanalysis.Issue {
positions := unconvert.Run(pass, settings.FastMath, settings.Safe)
var issues []goanalysis.Issue
for _, position := range positions {
issues = append(issues, goanalysis.NewIssue(&result.Issue{
Pos: position,
Text: "unnecessary conversion",
FromLinter: linterName,
}, pass))
}
return issues
}