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path: root/vendor/github.com/pkg/errors/go113.go
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-rw-r--r--vendor/github.com/pkg/errors/go113.go33
1 files changed, 0 insertions, 33 deletions
diff --git a/vendor/github.com/pkg/errors/go113.go b/vendor/github.com/pkg/errors/go113.go
index ed0dc7a6d..be0d10d0c 100644
--- a/vendor/github.com/pkg/errors/go113.go
+++ b/vendor/github.com/pkg/errors/go113.go
@@ -36,36 +36,3 @@ func As(err error, target interface{}) bool { return stderrors.As(err, target) }
func Unwrap(err error) error {
return stderrors.Unwrap(err)
}
-
-// Cause recursively unwraps an error chain and returns the underlying cause of
-// the error, if possible. There are two ways that an error value may provide a
-// cause. First, the error may implement the following interface:
-//
-// type causer interface {
-// Cause() error
-// }
-//
-// Second, the error may return a non-nil value when passed as an argument to
-// the Unwrap function. This makes Cause forwards-compatible with Go 1.13 error
-// chains.
-//
-// If an error value satisfies both methods of unwrapping, Cause will use the
-// causer interface.
-//
-// If the error is nil, nil will be returned without further investigation.
-func Cause(err error) error {
- type causer interface {
- Cause() error
- }
-
- for err != nil {
- if cause, ok := err.(causer); ok {
- err = cause.Cause()
- } else if unwrapped := Unwrap(err); unwrapped != nil {
- err = unwrapped
- } else {
- break
- }
- }
- return err
-}