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[#1239] util/attributes: Remove excessive slice copy during parsing

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Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
This commit is contained in:
Evgenii Stratonikov 2022-03-28 16:15:42 +03:00 committed by Alex Vanin
parent 2ad8016d75
commit 6936195afa
1 changed files with 4 additions and 9 deletions
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13
pkg/util/attributes/parser.go
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@ -28,7 +28,7 @@ func ParseV2Attributes(attrs []string, excl []string) ([]netmap.NodeAttribute, e
} }
cache := make(map[string]*netmap.NodeAttribute, len(attrs)) cache := make(map[string]*netmap.NodeAttribute, len(attrs))
result := make([]*netmap.NodeAttribute, 0, len(attrs)) result := make([]netmap.NodeAttribute, 0, len(attrs))
for i := range attrs { for i := range attrs {
line := strings.Trim(attrs[i], pairSeparator) line := strings.Trim(attrs[i], pairSeparator)
@ -59,9 +59,9 @@ func ParseV2Attributes(attrs []string, excl []string) ([]netmap.NodeAttribute, e
} }
if !present { if !present {
attribute = netmap.NewNodeAttribute() result = append(result, netmap.NodeAttribute{})
attribute = &result[len(result)-1]
cache[key] = attribute cache[key] = attribute
result = append(result, attribute)
// replace non-printable symbols with escaped symbols without escape character // replace non-printable symbols with escaped symbols without escape character
key = replaceEscaping(key, true) key = replaceEscaping(key, true)
@ -82,12 +82,7 @@ func ParseV2Attributes(attrs []string, excl []string) ([]netmap.NodeAttribute, e
} }
} }
nresult := make([]netmap.NodeAttribute, len(result)) return result, nil
for i := range result {
nresult[i] = *result[i]
}
return nresult, nil
} }
func replaceEscaping(target string, rollback bool) (s string) { func replaceEscaping(target string, rollback bool) (s string) {