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Remove unused Step methods

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This commit is contained in:
Simon Sapin 2017-07-05 23:54:08 +02:00
parent dbed18ca20
commit 4b2f40dfdf
1 changed files with 0 additions and 34 deletions
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34
src/libcore/iter/range.rs
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@ -22,9 +22,6 @@ use super::{FusedIterator, TrustedLen};
reason = "likely to be replaced by finer-grained traits",
issue = "42168")]
pub trait Step: PartialOrd + Sized {
/// Steps `self` if possible.
fn step(&self, by: &Self) -> Option<Self>;
/// Returns the number of steps between two step objects. The count is
/// inclusive of `start` and exclusive of `end`.
///
@ -35,9 +32,6 @@ pub trait Step: PartialOrd + Sized {
/// Same as `steps_between`, but with a `by` of 1
fn steps_between_by_one(start: &Self, end: &Self) -> Option<usize>;
/// Tests whether this step is negative or not (going backwards)
fn is_negative(&self) -> bool;
/// Replaces this step with `1`, returning itself
fn replace_one(&mut self) -> Self;
@ -57,10 +51,6 @@ macro_rules! step_impl_unsigned {
reason = "likely to be replaced by finer-grained traits",
issue = "42168")]
impl Step for $t {
#[inline]
fn step(&self, by: &$t) -> Option<$t> {
(*self).checked_add(*by)
}
#[inline]
#[allow(trivial_numeric_casts)]
fn steps_between(start: &$t, end: &$t, by: &$t) -> Option<usize> {
@ -79,11 +69,6 @@ macro_rules! step_impl_unsigned {
}
}
#[inline]
fn is_negative(&self) -> bool {
false
}
#[inline]
fn replace_one(&mut self) -> Self {
mem::replace(self, 1)
@ -117,10 +102,6 @@ macro_rules! step_impl_signed {
reason = "likely to be replaced by finer-grained traits",
issue = "42168")]
impl Step for $t {
#[inline]
fn step(&self, by: &$t) -> Option<$t> {
(*self).checked_add(*by)
}
#[inline]
#[allow(trivial_numeric_casts)]
fn steps_between(start: &$t, end: &$t, by: &$t) -> Option<usize> {
@ -150,11 +131,6 @@ macro_rules! step_impl_signed {
}
}
#[inline]
fn is_negative(&self) -> bool {
*self < 0
}
#[inline]
fn replace_one(&mut self) -> Self {
mem::replace(self, 1)
@ -189,21 +165,11 @@ macro_rules! step_impl_no_between {
reason = "likely to be replaced by finer-grained traits",
issue = "42168")]
impl Step for $t {
#[inline]
fn step(&self, by: &$t) -> Option<$t> {
(*self).checked_add(*by)
}
#[inline]
fn steps_between(_a: &$t, _b: &$t, _by: &$t) -> Option<usize> {
None
}
#[inline]
#[allow(unused_comparisons)]
fn is_negative(&self) -> bool {
*self < 0
}
#[inline]
fn replace_one(&mut self) -> Self {
mem::replace(self, 1)