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Also clamp the collection impls

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This commit is contained in:
David Tolnay
2017-02-19 13:45:23 -08:00
parent a4c738a9f3
commit 792a5f7502
1 changed files with 7 additions and 5 deletions
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serde/src/de/impls.rs
+7 -5
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@@ -30,6 +30,8 @@ use std::collections::{
#[cfg(feature = "collections")] #[cfg(feature = "collections")]
use collections::borrow::ToOwned; use collections::borrow::ToOwned;
#[cfg(any(feature = "std", feature = "collections"))]
use core::cmp;
use core::fmt; use core::fmt;
#[cfg(feature = "std")] #[cfg(feature = "std")]
use core::hash::{Hash, BuildHasher}; use core::hash::{Hash, BuildHasher};
@@ -467,7 +469,7 @@ seq_impl!(
BinaryHeapVisitor<T: Deserialize + Ord>, BinaryHeapVisitor<T: Deserialize + Ord>,
visitor, visitor,
BinaryHeap::new(), BinaryHeap::new(),
BinaryHeap::with_capacity(visitor.size_hint().0), BinaryHeap::with_capacity(cmp::min(visitor.size_hint().0, 4096)),
BinaryHeap::push); BinaryHeap::push);
#[cfg(any(feature = "std", feature = "collections"))] #[cfg(any(feature = "std", feature = "collections"))]
@@ -495,7 +497,7 @@ seq_impl!(
S: BuildHasher + Default>, S: BuildHasher + Default>,
visitor, visitor,
HashSet::with_hasher(S::default()), HashSet::with_hasher(S::default()),
HashSet::with_capacity_and_hasher(visitor.size_hint().0, S::default()), HashSet::with_capacity_and_hasher(cmp::min(visitor.size_hint().0, 4096), S::default()),
HashSet::insert); HashSet::insert);
#[cfg(any(feature = "std", feature = "collections"))] #[cfg(any(feature = "std", feature = "collections"))]
@@ -504,7 +506,7 @@ seq_impl!(
VecVisitor<T: Deserialize>, VecVisitor<T: Deserialize>,
visitor, visitor,
Vec::new(), Vec::new(),
Vec::with_capacity(visitor.size_hint().0), Vec::with_capacity(cmp::min(visitor.size_hint().0, 4096)),
Vec::push); Vec::push);
#[cfg(any(feature = "std", feature = "collections"))] #[cfg(any(feature = "std", feature = "collections"))]
@@ -513,7 +515,7 @@ seq_impl!(
VecDequeVisitor<T: Deserialize>, VecDequeVisitor<T: Deserialize>,
visitor, visitor,
VecDeque::new(), VecDeque::new(),
VecDeque::with_capacity(visitor.size_hint().0), VecDeque::with_capacity(cmp::min(visitor.size_hint().0, 4096)),
VecDeque::push_back); VecDeque::push_back);
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
@@ -791,7 +793,7 @@ map_impl!(
S: BuildHasher + Default>, S: BuildHasher + Default>,
visitor, visitor,
HashMap::with_hasher(S::default()), HashMap::with_hasher(S::default()),
HashMap::with_capacity_and_hasher(visitor.size_hint().0, S::default())); HashMap::with_capacity_and_hasher(cmp::min(visitor.size_hint().0, 4096), S::default()));
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////