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Refactor core::iter module #56932

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Merged
merged 17 commits into from
Jan 27, 2019
Merged

Refactor core::iter module #56932

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aff7772
Move core::iter adapters to adapters.rs
Dec 17, 2018
c40450c
Move core::iter iterator.rs to traits module
Dec 17, 2018
34d5624
Move DoubleEndedIterator to own module
Dec 17, 2018
6a28459
Move ExactSizeIterator to own module
Dec 17, 2018
3ba9733
Move FromIterator, IntoIterator, Extend into own module
Dec 17, 2018
4a03614
Move Sum, Product to own module
Dec 17, 2018
9228f3c
Move FusedIterator, TrustedLen to own module
Dec 17, 2018
3c44e1f
Move Zip and ZipImpl to own module
Dec 18, 2018
520e8b0
Move TrustedRandomAccess into Zip module
Dec 19, 2018
ebfd083
Move Chain and ChainState to own module
Dec 18, 2018
fb974df
Move Flatten and FlatMap to own module
Dec 18, 2018
7e41773
Don't expose ChainState to Iterator
Dec 18, 2018
53b400c
Don't expose FlattenCompat to Iterator
Dec 18, 2018
52b36e2
Move super_nth out of ZipImpl
Dec 18, 2018
5971ccc
Don't expose ZipImpl to Iterator
Dec 18, 2018
4c28b2c
Move nontrivial constructors to inherent methods
Dec 18, 2018
02bda7a
Move trivial constructors to inherent methods
Dec 18, 2018
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Don't expose ZipImpl to Iterator
  • Loading branch information
Clar Fon committed Jan 22, 2019
commit 5971ccc08d8bfadeb0614c4555ffd32c51066cdc
1 change: 0 additions & 1 deletion src/libcore/iter/adapters/mod.rs
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Expand Up @@ -13,7 +13,6 @@ mod zip;
pub use self::chain::Chain;
pub use self::flatten::{FlatMap, Flatten};
pub use self::zip::Zip;
pub(super) use self::zip::ZipImpl;
pub(crate) use self::zip::TrustedRandomAccess;

/// A double-ended iterator with the direction inverted.
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5 changes: 4 additions & 1 deletion src/libcore/iter/adapters/zip.rs
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Expand Up @@ -19,6 +19,9 @@ pub struct Zip<A, B> {
len: usize,
}
impl<A: Iterator, B: Iterator> Zip<A, B> {
pub(in super::super) fn new(a: A, b: B) -> Zip<A, B> {
ZipImpl::new(a, b)
}
fn super_nth(&mut self, mut n: usize) -> Option<(A::Item, B::Item)> {
while let Some(x) = Iterator::next(self) {
if n == 0 { return Some(x) }
Expand Down Expand Up @@ -62,7 +65,7 @@ impl<A, B> DoubleEndedIterator for Zip<A, B> where

// Zip specialization trait
#[doc(hidden)]
pub(in super::super) trait ZipImpl<A, B> {
trait ZipImpl<A, B> {
type Item;
fn new(a: A, b: B) -> Self;
fn next(&mut self) -> Option<Self::Item>;
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1 change: 0 additions & 1 deletion src/libcore/iter/mod.rs
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Expand Up @@ -353,7 +353,6 @@ pub use self::adapters::Flatten;
#[unstable(feature = "iter_copied", issue = "57127")]
pub use self::adapters::Copied;

use self::adapters::ZipImpl;
pub(crate) use self::adapters::TrustedRandomAccess;

mod range;
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3 changes: 1 addition & 2 deletions src/libcore/iter/traits/iterator.rs
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Expand Up @@ -5,8 +5,7 @@ use super::super::LoopState;
use super::super::{Chain, Cycle, Copied, Cloned, Enumerate, Filter, FilterMap, Fuse};
use super::super::{Flatten, FlatMap};
use super::super::{Inspect, Map, Peekable, Scan, Skip, SkipWhile, StepBy, Take, TakeWhile, Rev};
use super::super::{Zip, Sum, Product};
use super::super::{FromIterator, ZipImpl};
use super::super::{Zip, Sum, Product, FromIterator};

fn _assert_is_object_safe(_: &dyn Iterator<Item=()>) {}

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