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map: make .keys() pure

pull/2096/head
Alexander Medvednikov 2019-09-25 05:56:10 +03:00 committed by GitHub
parent 55d09d23b4
commit ab52b453cb
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1 changed files with 1 additions and 1 deletions
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vlib/builtin/map.v
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@ -167,7 +167,7 @@ fn preorder_keys(node &mapnode, keys mut []string, key_i int) int {
return i return i
} }
pub fn (m mut map) keys() []string { pub fn (m &map) keys() []string {
mut keys := [''].repeat(m.size) mut keys := [''].repeat(m.size)
if isnil(m.root) { if isnil(m.root) {
return keys return keys