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Files
revive/rule/use_any.go
Oleksandr Redko 395f7902d3 refactor: replace failure Category raw string with constant (#1196)
* refactor: replace Category raw strings with constants

* Add type FailureCategory; add comments for constants
2025-01-18 12:16:19 +01:00

55 lines
1023 B
Go

package rule
import (
"go/ast"
"github.com/mgechev/revive/lint"
)
// UseAnyRule proposes to replace `interface{}` with its alias `any`.
type UseAnyRule struct{}
// Apply applies the rule to given file.
func (*UseAnyRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure {
var failures []lint.Failure
walker := lintUseAny{
onFailure: func(failure lint.Failure) {
failures = append(failures, failure)
},
}
fileAst := file.AST
ast.Walk(walker, fileAst)
return failures
}
// Name returns the rule name.
func (*UseAnyRule) Name() string {
return "use-any"
}
type lintUseAny struct {
onFailure func(lint.Failure)
}
func (w lintUseAny) Visit(n ast.Node) ast.Visitor {
it, ok := n.(*ast.InterfaceType)
if !ok {
return w
}
if len(it.Methods.List) != 0 {
return w // it is not and empty interface
}
w.onFailure(lint.Failure{
Node: n,
Confidence: 1,
Category: lint.FailureCategoryNaming,
Failure: "since Go 1.18 'interface{}' can be replaced by 'any'",
})
return w
}