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Rollup merge of #84444 - notriddle:num-docs-from-undocumented-items-toggle, r=yaahc

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doc: Get rid of "[+] show undocumented items" toggle on numeric From impls

On most From implementations, the docstring is attached to the function. This is also how people have been [recommended] to do it.

Screenshots:

* [before](https://user-images.githubusercontent.com/1593513/115767662-323c5480-a35e-11eb-9918-98aba83e9183.png)
* [after](https://user-images.githubusercontent.com/1593513/115767675-35374500-a35e-11eb-964f-c28eeb6c807a.png)

[recommended]: https://github.com/rust-lang/rust/issues/51430#issuecomment-398322434
This commit is contained in:
Yuki Okushi 2021-04-24 03:44:12 +09:00 committed by GitHub
commit 9ada731c65
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1 changed files with 12 additions and 4 deletions
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16
library/core/src/convert/num.rs
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@ -45,8 +45,10 @@ impl_float_to_int!(f64 => u8 u16 u32 u64 u128 usize i8 i16 i32 i64 i128 isize);
macro_rules! impl_from {
($Small: ty, $Large: ty, #[$attr:meta], $doc: expr) => {
#[$attr]
#[doc = $doc]
impl From<$Small> for $Large {
// Rustdocs on the impl block show a "[+] show undocumented items" toggle.
// Rustdocs on functions do not.
#[doc = $doc]
#[inline]
fn from(small: $Small) -> Self {
small as Self
@ -383,8 +385,10 @@ use crate::num::NonZeroUsize;
macro_rules! nzint_impl_from {
($Small: ty, $Large: ty, #[$attr:meta], $doc: expr) => {
#[$attr]
#[doc = $doc]
impl From<$Small> for $Large {
// Rustdocs on the impl block show a "[+] show undocumented items" toggle.
// Rustdocs on functions do not.
#[doc = $doc]
#[inline]
fn from(small: $Small) -> Self {
// SAFETY: input type guarantees the value is non-zero
@ -450,10 +454,12 @@ nzint_impl_from! { NonZeroU64, NonZeroI128, #[stable(feature = "nz_int_conv", si
macro_rules! nzint_impl_try_from_int {
($Int: ty, $NonZeroInt: ty, #[$attr:meta], $doc: expr) => {
#[$attr]
#[doc = $doc]
impl TryFrom<$Int> for $NonZeroInt {
type Error = TryFromIntError;
// Rustdocs on the impl block show a "[+] show undocumented items" toggle.
// Rustdocs on functions do not.
#[doc = $doc]
#[inline]
fn try_from(value: $Int) -> Result<Self, Self::Error> {
Self::new(value).ok_or(TryFromIntError(()))
@ -489,10 +495,12 @@ nzint_impl_try_from_int! { isize, NonZeroIsize, #[stable(feature = "nzint_try_fr
macro_rules! nzint_impl_try_from_nzint {
($From:ty => $To:ty, $doc: expr) => {
#[stable(feature = "nzint_try_from_nzint_conv", since = "1.49.0")]
#[doc = $doc]
impl TryFrom<$From> for $To {
type Error = TryFromIntError;
// Rustdocs on the impl block show a "[+] show undocumented items" toggle.
// Rustdocs on functions do not.
#[doc = $doc]
#[inline]
fn try_from(value: $From) -> Result<Self, Self::Error> {
TryFrom::try_from(value.get()).map(|v| {