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Don't generate code with redundant closures

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Fixes #1491.
This commit is contained in:
Thomas Eizinger 2019-02-28 17:30:21 +11:00
parent bf27b28554
commit 2ea43c8986
1 changed files with 1 additions and 1 deletions
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2
serde_derive/src/de.rs
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@ -2476,7 +2476,7 @@ fn deserialize_map(
let collected_deny_unknown_fields = if cattrs.has_flatten() && cattrs.deny_unknown_fields() {
Some(quote! {
if let _serde::export::Some(_serde::export::Some((__key, _))) = __collect.into_iter().filter(|x| x.is_some()).next() {
if let _serde::export::Some(_serde::export::Some((__key, _))) = __collect.into_iter().filter(Option::is_some).next() {
if let _serde::export::Some(__key) = __key.as_str() {
return _serde::export::Err(
_serde::de::Error::custom(format_args!("unknown field `{}`", &__key)));