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don't allocate strings when str is enought for using as key

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This commit is contained in:
klensy 2021-12-07 12:54:35 +03:00
parent 2af5c6562d
commit 1b27b69e5a
1 changed files with 3 additions and 3 deletions
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6
compiler/rustc_serialize/src/json.rs
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@ -2320,12 +2320,12 @@ impl crate::Decoder for Decoder {
let name = match self.pop() {
Json::String(s) => s,
Json::Object(mut o) => {
let n = match o.remove(&"variant".to_owned()) {
let n = match o.remove("variant") {
Some(Json::String(s)) => s,
Some(val) => return Err(ExpectedError("String".to_owned(), val.to_string())),
None => return Err(MissingFieldError("variant".to_owned())),
};
match o.remove(&"fields".to_string()) {
match o.remove("fields") {
Some(Json::Array(l)) => {
self.stack.extend(l.into_iter().rev());
}
@ -2365,7 +2365,7 @@ impl crate::Decoder for Decoder {
{
let mut obj = expect!(self.pop(), Object)?;
let value = match obj.remove(&name.to_string()) {
let value = match obj.remove(name) {
None => {
// Add a Null and try to parse it as an Option<_>
// to get None as a default value.