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No need for single-element vec for chaining one element

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David Tolnay 2023-07-02 21:11:09 -07:00
parent 6a9a21f178
commit 015e39776f
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1 changed files with 2 additions and 1 deletions
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test_suite/tests/test_de.rs
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@ -14,6 +14,7 @@ use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet};
use std::default::Default;
use std::ffi::{CStr, CString, OsString};
use std::fmt::Debug;
use std::iter;
use std::net;
use std::num::{
NonZeroI128, NonZeroI16, NonZeroI32, NonZeroI64, NonZeroI8, NonZeroIsize, NonZeroU128,
@ -199,7 +200,7 @@ fn assert_de_tokens_ignore(ignorable_tokens: &[Token]) {
]
.into_iter()
.chain(ignorable_tokens.iter().copied())
.chain(vec![Token::MapEnd])
.chain(iter::once(Token::MapEnd))
.collect();
let expected = IgnoreBase { a: 1 };