std::range

library/std/src/lib.rs

@@ -530,6 +530,8 @@ pub use core::option;
 pub use core::pin;
 #[stable(feature = "rust1", since = "1.0.0")]
 pub use core::ptr;
+#[unstable(feature = "new_range_api", issue = "125687")]
+pub use core::range;
 #[stable(feature = "rust1", since = "1.0.0")]
 pub use core::result;
 #[stable(feature = "rust1", since = "1.0.0")]

tests/mir-opt/pre-codegen/range_iter.inclusive_loop.PreCodegen.after.panic-abort.mir

@@ -19,16 +19,16 @@ fn inclusive_loop(_1: u32, _2: u32, _3: impl Fn(u32)) -> () {
         scope 2 {
             debug x => _9;
         }
-        scope 5 (inlined iter::range::<impl Iterator for RangeInclusive<u32>>::next) {
+        scope 5 (inlined iter::range::<impl Iterator for std::ops::RangeInclusive<u32>>::next) {
         }
     }
-    scope 3 (inlined RangeInclusive::<u32>::new) {
+    scope 3 (inlined std::ops::RangeInclusive::<u32>::new) {
     }
-    scope 4 (inlined <RangeInclusive<u32> as IntoIterator>::into_iter) {
+    scope 4 (inlined <std::ops::RangeInclusive<u32> as IntoIterator>::into_iter) {
     }
 
     bb0: {
-        _4 = RangeInclusive::<u32> { start: copy _1, end: copy _2, exhausted: const false };
+        _4 = std::ops::RangeInclusive::<u32> { start: copy _1, end: copy _2, exhausted: const false };
         StorageLive(_5);
         _5 = copy _4;
         goto -> bb1;
@@ -37,7 +37,7 @@ fn inclusive_loop(_1: u32, _2: u32, _3: impl Fn(u32)) -> () {
     bb1: {
         StorageLive(_7);
         _6 = &mut _5;
-        _7 = <RangeInclusive<u32> as iter::range::RangeInclusiveIteratorImpl>::spec_next(move _6) -> [return: bb2, unwind unreachable];
+        _7 = <std::ops::RangeInclusive<u32> as iter::range::RangeInclusiveIteratorImpl>::spec_next(move _6) -> [return: bb2, unwind unreachable];
     }
 
     bb2: {

tests/mir-opt/pre-codegen/range_iter.inclusive_loop.PreCodegen.after.panic-unwind.mir

@@ -19,16 +19,16 @@ fn inclusive_loop(_1: u32, _2: u32, _3: impl Fn(u32)) -> () {
         scope 2 {
             debug x => _9;
         }
-        scope 5 (inlined iter::range::<impl Iterator for RangeInclusive<u32>>::next) {
+        scope 5 (inlined iter::range::<impl Iterator for std::ops::RangeInclusive<u32>>::next) {
         }
     }
-    scope 3 (inlined RangeInclusive::<u32>::new) {
+    scope 3 (inlined std::ops::RangeInclusive::<u32>::new) {
     }
-    scope 4 (inlined <RangeInclusive<u32> as IntoIterator>::into_iter) {
+    scope 4 (inlined <std::ops::RangeInclusive<u32> as IntoIterator>::into_iter) {
     }
 
     bb0: {
-        _4 = RangeInclusive::<u32> { start: copy _1, end: copy _2, exhausted: const false };
+        _4 = std::ops::RangeInclusive::<u32> { start: copy _1, end: copy _2, exhausted: const false };
         StorageLive(_5);
         _5 = copy _4;
         goto -> bb1;
@@ -37,7 +37,7 @@ fn inclusive_loop(_1: u32, _2: u32, _3: impl Fn(u32)) -> () {
     bb1: {
         StorageLive(_7);
         _6 = &mut _5;
-        _7 = <RangeInclusive<u32> as iter::range::RangeInclusiveIteratorImpl>::spec_next(move _6) -> [return: bb2, unwind: bb8];
+        _7 = <std::ops::RangeInclusive<u32> as iter::range::RangeInclusiveIteratorImpl>::spec_next(move _6) -> [return: bb2, unwind: bb8];
     }
 
     bb2: {

tests/mir-opt/pre-codegen/range_iter.range_inclusive_iter_next.PreCodegen.after.panic-abort.mir

@@ -1,13 +1,13 @@
 // MIR for `range_inclusive_iter_next` after PreCodegen
 
-fn range_inclusive_iter_next(_1: &mut RangeInclusive<u32>) -> Option<u32> {
+fn range_inclusive_iter_next(_1: &mut std::ops::RangeInclusive<u32>) -> Option<u32> {
     debug it => _1;
     let mut _0: std::option::Option<u32>;
-    scope 1 (inlined iter::range::<impl Iterator for RangeInclusive<u32>>::next) {
+    scope 1 (inlined iter::range::<impl Iterator for std::ops::RangeInclusive<u32>>::next) {
     }
 
     bb0: {
-        _0 = <RangeInclusive<u32> as iter::range::RangeInclusiveIteratorImpl>::spec_next(move _1) -> [return: bb1, unwind unreachable];
+        _0 = <std::ops::RangeInclusive<u32> as iter::range::RangeInclusiveIteratorImpl>::spec_next(move _1) -> [return: bb1, unwind unreachable];
     }
 
     bb1: {

tests/mir-opt/pre-codegen/range_iter.range_inclusive_iter_next.PreCodegen.after.panic-unwind.mir

@@ -1,13 +1,13 @@
 // MIR for `range_inclusive_iter_next` after PreCodegen
 
-fn range_inclusive_iter_next(_1: &mut RangeInclusive<u32>) -> Option<u32> {
+fn range_inclusive_iter_next(_1: &mut std::ops::RangeInclusive<u32>) -> Option<u32> {
     debug it => _1;
     let mut _0: std::option::Option<u32>;
-    scope 1 (inlined iter::range::<impl Iterator for RangeInclusive<u32>>::next) {
+    scope 1 (inlined iter::range::<impl Iterator for std::ops::RangeInclusive<u32>>::next) {
     }
 
     bb0: {
-        _0 = <RangeInclusive<u32> as iter::range::RangeInclusiveIteratorImpl>::spec_next(move _1) -> [return: bb1, unwind continue];
+        _0 = <std::ops::RangeInclusive<u32> as iter::range::RangeInclusiveIteratorImpl>::spec_next(move _1) -> [return: bb1, unwind continue];
     }
 
     bb1: {

tests/ui/const-generics/std/const-generics-range.full.stderr

@@ -4,7 +4,7 @@ error[E0741]: `std::ops::Range<usize>` must implement `ConstParamTy` to be used
 LL | struct _Range<const R: std::ops::Range<usize>>;
    |                        ^^^^^^^^^^^^^^^^^^^^^^
 
-error[E0741]: `RangeFrom<usize>` must implement `ConstParamTy` to be used as the type of a const generic parameter
+error[E0741]: `std::ops::RangeFrom<usize>` must implement `ConstParamTy` to be used as the type of a const generic parameter
   --> $DIR/const-generics-range.rs:13:28
    |
 LL | struct _RangeFrom<const R: std::ops::RangeFrom<usize>>;
@@ -16,7 +16,7 @@ error[E0741]: `RangeFull` must implement `ConstParamTy` to be used as the type o
 LL | struct _RangeFull<const R: std::ops::RangeFull>;
    |                            ^^^^^^^^^^^^^^^^^^^
 
-error[E0741]: `RangeInclusive<usize>` must implement `ConstParamTy` to be used as the type of a const generic parameter
+error[E0741]: `std::ops::RangeInclusive<usize>` must implement `ConstParamTy` to be used as the type of a const generic parameter
   --> $DIR/const-generics-range.rs:24:33
    |
 LL | struct _RangeInclusive<const R: std::ops::RangeInclusive<usize>>;

tests/ui/const-generics/std/const-generics-range.min.stderr

@@ -10,7 +10,7 @@ help: add `#![feature(adt_const_params)]` to the crate attributes to enable more
 LL + #![feature(adt_const_params)]
    |
 
-error: `RangeFrom<usize>` is forbidden as the type of a const generic parameter
+error: `std::ops::RangeFrom<usize>` is forbidden as the type of a const generic parameter
   --> $DIR/const-generics-range.rs:13:28
    |
 LL | struct _RangeFrom<const R: std::ops::RangeFrom<usize>>;
@@ -34,7 +34,7 @@ help: add `#![feature(adt_const_params)]` to the crate attributes to enable more
 LL + #![feature(adt_const_params)]
    |
 
-error: `RangeInclusive<usize>` is forbidden as the type of a const generic parameter
+error: `std::ops::RangeInclusive<usize>` is forbidden as the type of a const generic parameter
   --> $DIR/const-generics-range.rs:24:33
    |
 LL | struct _RangeInclusive<const R: std::ops::RangeInclusive<usize>>;

tests/ui/const-generics/std/const-generics-range.rs

@@ -11,7 +11,7 @@ const RANGE : _Range<{ 0 .. 1000 }> = _Range;
 
 // `RangeFrom` should be usable within const generics:
 struct _RangeFrom<const R: std::ops::RangeFrom<usize>>;
-//[min]~^ ERROR `RangeFrom<usize>` is forbidden
+//[min]~^ ERROR `std::ops::RangeFrom<usize>` is forbidden
 const RANGE_FROM : _RangeFrom<{ 0 .. }> = _RangeFrom;
 
 // `RangeFull` should be usable within const generics:
@@ -22,7 +22,7 @@ const RANGE_FULL : _RangeFull<{ .. }> = _RangeFull;
 // Regression test for #70155
 // `RangeInclusive` should be usable within const generics:
 struct _RangeInclusive<const R: std::ops::RangeInclusive<usize>>;
-//[min]~^ ERROR `RangeInclusive<usize>` is forbidden
+//[min]~^ ERROR `std::ops::RangeInclusive<usize>` is forbidden
 const RANGE_INCLUSIVE : _RangeInclusive<{ 0 ..= 999 }> = _RangeInclusive;
 
 // `RangeTo` should be usable within const generics:

tests/ui/issues/issue-76191.stderr

@@ -21,7 +21,7 @@ LL |         RANGE => {}
    |         `RANGE` is interpreted as a constant, not a new binding
    |
    = note: expected type `i32`
-            found struct `RangeInclusive<i32>`
+            found struct `std::ops::RangeInclusive<i32>`
 help: you may want to move the range into the match block
    |
 LL |         0..=255 => {}
@@ -43,7 +43,7 @@ LL |         RANGE2 => {}
    |         `RANGE2` is interpreted as a constant, not a new binding
    |
    = note: expected type `i32`
-            found struct `RangeInclusive<i32>`
+            found struct `std::ops::RangeInclusive<i32>`
    = note: constants only support matching by type, if you meant to match against a range of values, consider using a range pattern like `min ..= max` in the match block
 
 error: aborting due to 3 previous errors

tests/ui/mismatched_types/closure-arg-type-mismatch-issue-45727.current.fixed

@@ -5,7 +5,7 @@
 fn main() {
     let _ = (-10..=10).find(|x: &i32| x.signum() == 0);
     //[current]~^ ERROR type mismatch in closure arguments
-    //[next]~^^ ERROR expected a `FnMut(&<RangeInclusive<{integer}> as Iterator>::Item)` closure, found
+    //[next]~^^ ERROR expected a `FnMut(&<std::ops::RangeInclusive<{integer}> as Iterator>::Item)` closure, found
     let _ = (-10..=10).find(|x: &i32| x.signum() == 0);
     //[current]~^ ERROR type mismatch in closure arguments
     //[next]~^^ ERROR expected `RangeInclusive<{integer}>` to be an iterator that yields `&&i32`, but it yields `{integer}`

tests/ui/mismatched_types/closure-arg-type-mismatch-issue-45727.next.stderr

@@ -1,14 +1,14 @@
-error[E0277]: expected a `FnMut(&<RangeInclusive<{integer}> as Iterator>::Item)` closure, found `{closure@$DIR/closure-arg-type-mismatch-issue-45727.rs:6:29: 6:37}`
+error[E0277]: expected a `FnMut(&<std::ops::RangeInclusive<{integer}> as Iterator>::Item)` closure, found `{closure@$DIR/closure-arg-type-mismatch-issue-45727.rs:6:29: 6:37}`
   --> $DIR/closure-arg-type-mismatch-issue-45727.rs:6:29
    |
 LL |     let _ = (-10..=10).find(|x: i32| x.signum() == 0);
-   |                        ---- ^^^^^^^^^^^^^^^^^^^^^^^^ expected an `FnMut(&<RangeInclusive<{integer}> as Iterator>::Item)` closure, found `{closure@$DIR/closure-arg-type-mismatch-issue-45727.rs:6:29: 6:37}`
+   |                        ---- ^^^^^^^^^^^^^^^^^^^^^^^^ expected an `FnMut(&<std::ops::RangeInclusive<{integer}> as Iterator>::Item)` closure, found `{closure@$DIR/closure-arg-type-mismatch-issue-45727.rs:6:29: 6:37}`
    |                        |
    |                        required by a bound introduced by this call
    |
-   = help: the trait `for<'a> FnMut(&'a <RangeInclusive<{integer}> as Iterator>::Item)` is not implemented for closure `{closure@$DIR/closure-arg-type-mismatch-issue-45727.rs:6:29: 6:37}`
+   = help: the trait `for<'a> FnMut(&'a <std::ops::RangeInclusive<{integer}> as Iterator>::Item)` is not implemented for closure `{closure@$DIR/closure-arg-type-mismatch-issue-45727.rs:6:29: 6:37}`
    = note: expected a closure with arguments `(i32,)`
-              found a closure with arguments `(&<RangeInclusive<{integer}> as Iterator>::Item,)`
+              found a closure with arguments `(&<std::ops::RangeInclusive<{integer}> as Iterator>::Item,)`
 note: required by a bound in `find`
   --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL
 

tests/ui/mismatched_types/closure-arg-type-mismatch-issue-45727.rs

@@ -5,7 +5,7 @@
 fn main() {
     let _ = (-10..=10).find(|x: i32| x.signum() == 0);
     //[current]~^ ERROR type mismatch in closure arguments
-    //[next]~^^ ERROR expected a `FnMut(&<RangeInclusive<{integer}> as Iterator>::Item)` closure, found
+    //[next]~^^ ERROR expected a `FnMut(&<std::ops::RangeInclusive<{integer}> as Iterator>::Item)` closure, found
     let _ = (-10..=10).find(|x: &&&i32| x.signum() == 0);
     //[current]~^ ERROR type mismatch in closure arguments
     //[next]~^^ ERROR expected `RangeInclusive<{integer}>` to be an iterator that yields `&&i32`, but it yields `{integer}`

tests/ui/never_type/issue-52443.stderr

@@ -31,15 +31,15 @@ help: give the `break` a value of the expected type
 LL |     [(); loop { break 42 }];
    |                       ++
 
-error[E0015]: cannot use `for` loop on `RangeFrom<usize>` in constants
+error[E0015]: cannot use `for` loop on `std::ops::RangeFrom<usize>` in constants
   --> $DIR/issue-52443.rs:9:21
    |
 LL |     [(); { for _ in 0usize.. {}; 0}];
    |                     ^^^^^^^^
    |
    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
 
-error[E0015]: cannot use `for` loop on `RangeFrom<usize>` in constants
+error[E0015]: cannot use `for` loop on `std::ops::RangeFrom<usize>` in constants
   --> $DIR/issue-52443.rs:9:21
    |
 LL |     [(); { for _ in 0usize.. {}; 0}];

tests/ui/range/issue-54505-no-literals.stderr

@@ -47,7 +47,7 @@ LL |     take_range(std::ops::RangeFrom { start: 1 });
    |     arguments to this function are incorrect
    |
    = note: expected reference `&_`
-                 found struct `RangeFrom<{integer}>`
+                 found struct `std::ops::RangeFrom<{integer}>`
 note: function defined here
   --> $DIR/issue-54505-no-literals.rs:12:4
    |
@@ -67,7 +67,7 @@ LL |     take_range(::std::ops::RangeFrom { start: 1 });
    |     arguments to this function are incorrect
    |
    = note: expected reference `&_`
-                 found struct `RangeFrom<{integer}>`
+                 found struct `std::ops::RangeFrom<{integer}>`
 note: function defined here
   --> $DIR/issue-54505-no-literals.rs:12:4
    |
@@ -127,7 +127,7 @@ LL |     take_range(std::ops::RangeInclusive::new(0, 1));
    |     arguments to this function are incorrect
    |
    = note: expected reference `&_`
-                 found struct `RangeInclusive<{integer}>`
+                 found struct `std::ops::RangeInclusive<{integer}>`
 note: function defined here
   --> $DIR/issue-54505-no-literals.rs:12:4
    |
@@ -147,7 +147,7 @@ LL |     take_range(::std::ops::RangeInclusive::new(0, 1));
    |     arguments to this function are incorrect
    |
    = note: expected reference `&_`
-                 found struct `RangeInclusive<{integer}>`
+                 found struct `std::ops::RangeInclusive<{integer}>`
 note: function defined here
   --> $DIR/issue-54505-no-literals.rs:12:4
    |

tests/ui/range/issue-54505.stderr

@@ -27,7 +27,7 @@ LL |     take_range(1..);
    |     arguments to this function are incorrect
    |
    = note: expected reference `&_`
-                 found struct `RangeFrom<{integer}>`
+                 found struct `std::ops::RangeFrom<{integer}>`
 note: function defined here
   --> $DIR/issue-54505.rs:10:4
    |
@@ -72,7 +72,7 @@ LL |     take_range(0..=1);
    |     arguments to this function are incorrect
    |
    = note: expected reference `&_`
-                 found struct `RangeInclusive<{integer}>`
+                 found struct `std::ops::RangeInclusive<{integer}>`
 note: function defined here
   --> $DIR/issue-54505.rs:10:4
    |

tests/ui/range/range-1.stderr

@@ -30,7 +30,7 @@ LL |     let range = *arr..;
    |                 ^^^^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `[{integer}]`
-note: required by an implicit `Sized` bound in `RangeFrom`
+note: required by an implicit `Sized` bound in `std::ops::RangeFrom`
   --> $SRC_DIR/core/src/ops/range.rs:LL:COL
 
 error: aborting due to 3 previous errors

tests/ui/suggestions/unnecessary_dot_for_floating_point_literal.stderr

@@ -22,7 +22,7 @@ LL |     let _: f64 = 1..;
    |            expected due to this
    |
    = note: expected type `f64`
-            found struct `RangeFrom<{integer}>`
+            found struct `std::ops::RangeFrom<{integer}>`
 help: remove the unnecessary `.` operator for a floating point literal
    |
 LL |     let _: f64 = 1.;