Files
go-zero/tools/goctl/api/parser/g4/ast/importstack.go
Fyn 6d9dfc08f9 feat(goctl): supports api multi-level importing (#1747)
* feat(goctl): supports api  multi-level importing

Resolves: #1744

* fix(goctl): import-cycle, etc.

import-cycle will not be allowed
e.g., a.api -> b.api -> a.api
regular multiple-import will be allowed
e.g., a.api -> b.api -> c.api
                   -> c.api

* refactor(goctl): adds comments to exported var

* fix(goctl): typo in a comment
2022-04-09 23:26:57 +08:00

24 lines
453 B
Go

package ast
import "errors"
// ErrImportCycleNotAllowed defines an error for circular importing
var ErrImportCycleNotAllowed = errors.New("import cycle not allowed")
// importStack a stack of import paths
type importStack []string
func (s *importStack) push(p string) error {
for _, x := range *s {
if x == p {
return ErrImportCycleNotAllowed
}
}
*s = append(*s, p)
return nil
}
func (s *importStack) pop() {
*s = (*s)[0 : len(*s)-1]
}