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errors/wrap: do not call Elem() twice

Change-Id: I2fe6037c45a0dfe25f946a92ff97b5e3fbd69bc0
GitHub-Last-Rev: 644d479a27
GitHub-Pull-Request: golang/go#44851
Reviewed-on: https://go-review.googlesource.com/c/go/+/299629
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
This commit is contained in:
Vitaly Zdanevich 2021-03-08 03:15:25 +00:00 committed by Tobias Klauser
parent 289d34a465
commit fedb494878

View File

@ -83,10 +83,10 @@ func As(err error, target interface{}) bool {
if typ.Kind() != reflectlite.Ptr || val.IsNil() {
panic("errors: target must be a non-nil pointer")
}
if e := typ.Elem(); e.Kind() != reflectlite.Interface && !e.Implements(errorType) {
targetType := typ.Elem()
if targetType.Kind() != reflectlite.Interface && !targetType.Implements(errorType) {
panic("errors: *target must be interface or implement error")
}
targetType := typ.Elem()
for err != nil {
if reflectlite.TypeOf(err).AssignableTo(targetType) {
val.Elem().Set(reflectlite.ValueOf(err))