squiid/rust
1
0
Fork 0
Code Issues Pull requests Projects Activity

Change #[must_use] message of Iterator

Browse source
This commit is contained in:
Taiki Endo 2019-01-13 14:46:42 +09:00
parent 6d442938e0
commit a6535d78dc
3 changed files with 23 additions and 23 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/libcore/iter/iterator.rs
View file

@ -88,7 +88,7 @@ fn _assert_is_object_safe(_: &dyn Iterator<Item=()>) {}
message="`{Self}` is not an iterator"
)]
#[doc(spotlight)]
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
pub trait Iterator {
/// The type of the elements being iterated over.
#[stable(feature = "rust1", since = "1.0.0")]

42
src/libcore/iter/mod.rs
View file

@ -404,7 +404,7 @@ impl<R: Try> LoopState<R::Ok, R> {
/// [`rev`]: trait.Iterator.html#method.rev
/// [`Iterator`]: trait.Iterator.html
#[derive(Clone, Debug)]
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Rev<T> {
iter: T
@ -505,7 +505,7 @@ unsafe impl<I> TrustedLen for Rev<I>
/// [`copied`]: trait.Iterator.html#method.copied
/// [`Iterator`]: trait.Iterator.html
#[unstable(feature = "iter_copied", issue = "57127")]
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[derive(Clone, Debug)]
pub struct Copied<I> {
it: I,
@ -605,7 +605,7 @@ unsafe impl<'a, I, T: 'a> TrustedLen for Copied<I>
/// [`cloned`]: trait.Iterator.html#method.cloned
/// [`Iterator`]: trait.Iterator.html
#[stable(feature = "iter_cloned", since = "1.1.0")]
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[derive(Clone, Debug)]
pub struct Cloned<I> {
it: I,
@ -717,7 +717,7 @@ unsafe impl<'a, I, T: 'a> TrustedLen for Cloned<I>
/// [`cycle`]: trait.Iterator.html#method.cycle
/// [`Iterator`]: trait.Iterator.html
#[derive(Clone, Debug)]
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Cycle<I> {
orig: I,
@ -757,7 +757,7 @@ impl<I> FusedIterator for Cycle<I> where I: Clone + Iterator {}
///
/// [`step_by`]: trait.Iterator.html#method.step_by
/// [`Iterator`]: trait.Iterator.html
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "iterator_step_by", since = "1.28.0")]
#[derive(Clone, Debug)]
pub struct StepBy<I> {
@ -849,7 +849,7 @@ impl<I> ExactSizeIterator for StepBy<I> where I: ExactSizeIterator {}
/// [`chain`]: trait.Iterator.html#method.chain
/// [`Iterator`]: trait.Iterator.html
#[derive(Clone, Debug)]
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Chain<A, B> {
a: A,
@ -1100,7 +1100,7 @@ unsafe impl<A, B> TrustedLen for Chain<A, B>
/// [`zip`]: trait.Iterator.html#method.zip
/// [`Iterator`]: trait.Iterator.html
#[derive(Clone, Debug)]
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Zip<A, B> {
a: A,
@ -1400,7 +1400,7 @@ unsafe impl<A, B> TrustedLen for Zip<A, B>
/// println!("{:?}", pair);
/// }
/// ```
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
#[derive(Clone)]
pub struct Map<I, F> {
@ -1511,7 +1511,7 @@ unsafe impl<B, I, F> TrustedRandomAccess for Map<I, F>
///
/// [`filter`]: trait.Iterator.html#method.filter
/// [`Iterator`]: trait.Iterator.html
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
#[derive(Clone)]
pub struct Filter<I, P> {
@ -1643,7 +1643,7 @@ impl<I: FusedIterator, P> FusedIterator for Filter<I, P>
///
/// [`filter_map`]: trait.Iterator.html#method.filter_map
/// [`Iterator`]: trait.Iterator.html
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
#[derive(Clone)]
pub struct FilterMap<I, F> {
@ -1754,7 +1754,7 @@ impl<B, I: FusedIterator, F> FusedIterator for FilterMap<I, F>
/// [`enumerate`]: trait.Iterator.html#method.enumerate
/// [`Iterator`]: trait.Iterator.html
#[derive(Clone, Debug)]
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Enumerate<I> {
iter: I,
@ -1915,7 +1915,7 @@ unsafe impl<I> TrustedLen for Enumerate<I>
/// [`peekable`]: trait.Iterator.html#method.peekable
/// [`Iterator`]: trait.Iterator.html
#[derive(Clone, Debug)]
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Peekable<I: Iterator> {
iter: I,
@ -2066,7 +2066,7 @@ impl<I: Iterator> Peekable<I> {
///
/// [`skip_while`]: trait.Iterator.html#method.skip_while
/// [`Iterator`]: trait.Iterator.html
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
#[derive(Clone)]
pub struct SkipWhile<I, P> {
@ -2149,7 +2149,7 @@ impl<I, P> FusedIterator for SkipWhile<I, P>
///
/// [`take_while`]: trait.Iterator.html#method.take_while
/// [`Iterator`]: trait.Iterator.html
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
#[derive(Clone)]
pub struct TakeWhile<I, P> {
@ -2233,7 +2233,7 @@ impl<I, P> FusedIterator for TakeWhile<I, P>
/// [`skip`]: trait.Iterator.html#method.skip
/// [`Iterator`]: trait.Iterator.html
#[derive(Clone, Debug)]
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Skip<I> {
iter: I,
@ -2371,7 +2371,7 @@ impl<I> FusedIterator for Skip<I> where I: FusedIterator {}
/// [`take`]: trait.Iterator.html#method.take
/// [`Iterator`]: trait.Iterator.html
#[derive(Clone, Debug)]
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Take<I> {
iter: I,
@ -2458,7 +2458,7 @@ unsafe impl<I: TrustedLen> TrustedLen for Take<I> {}
///
/// [`scan`]: trait.Iterator.html#method.scan
/// [`Iterator`]: trait.Iterator.html
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
#[derive(Clone)]
pub struct Scan<I, St, F> {
@ -2518,7 +2518,7 @@ impl<B, I, St, F> Iterator for Scan<I, St, F> where
///
/// [`flat_map`]: trait.Iterator.html#method.flat_map
/// [`Iterator`]: trait.Iterator.html
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct FlatMap<I, U: IntoIterator, F> {
inner: FlattenCompat<Map<I, F>, <U as IntoIterator>::IntoIter>
@ -2603,7 +2603,7 @@ impl<I, U, F> FusedIterator for FlatMap<I, U, F>
///
/// [`flatten`]: trait.Iterator.html#method.flatten
/// [`Iterator`]: trait.Iterator.html
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "iterator_flatten", since = "1.29.0")]
pub struct Flatten<I: Iterator>
where I::Item: IntoIterator {
@ -2832,7 +2832,7 @@ impl<I, U> DoubleEndedIterator for FlattenCompat<I, U>
/// [`fuse`]: trait.Iterator.html#method.fuse
/// [`Iterator`]: trait.Iterator.html
#[derive(Clone, Debug)]
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Fuse<I> {
iter: I,
@ -3056,7 +3056,7 @@ impl<I> ExactSizeIterator for Fuse<I> where I: ExactSizeIterator {
///
/// [`inspect`]: trait.Iterator.html#method.inspect
/// [`Iterator`]: trait.Iterator.html
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
#[derive(Clone)]
pub struct Inspect<I, F> {

2
src/test/ui/rfc1598-generic-associated-types/streaming_iterator.rs
View file

@ -28,7 +28,7 @@ fn foo<T>(iter: T) where T: StreamingIterator, for<'a> T::Item<'a>: Display { /*
// Full example of enumerate iterator
#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
#[must_use = "iterators are lazy and do nothing unless consumed"]
struct StreamEnumerate<I> {
iter: I,
count: usize,