Auto merge of #54734 - pawroman:fix_range_borrowing_suggestion, r=varkor
Fix range literals borrowing suggestions Fixes #54505. The compiler issued incorrect range borrowing suggestions (missing `()` around borrows of range literals). This was not correct syntax (see the issue for an example). With changes in this PR, this is fixed for all types of `Range` literals. Thanks again to @varkor and @estebank for their invaluable help and guidance. r? @varkor
This commit is contained in:
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commit
eae47a4048
9 changed files with 664 additions and 3 deletions
75
src/test/ui/range/issue-54505-no-literals.fixed
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75
src/test/ui/range/issue-54505-no-literals.fixed
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// run-rustfix
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// Regression test for changes introduced while fixing #54505
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// This test uses non-literals for Ranges
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// (expecting no parens with borrow suggestion)
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use std::ops::RangeBounds;
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// take a reference to any built-in range
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fn take_range(_r: &impl RangeBounds<i8>) {}
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fn main() {
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take_range(&std::ops::Range { start: 0, end: 1 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &std::ops::Range { start: 0, end: 1 }
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take_range(&::std::ops::Range { start: 0, end: 1 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &::std::ops::Range { start: 0, end: 1 }
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take_range(&std::ops::RangeFrom { start: 1 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &std::ops::RangeFrom { start: 1 }
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take_range(&::std::ops::RangeFrom { start: 1 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &::std::ops::RangeFrom { start: 1 }
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take_range(&std::ops::RangeFull {});
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &std::ops::RangeFull {}
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take_range(&::std::ops::RangeFull {});
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &::std::ops::RangeFull {}
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take_range(&std::ops::RangeInclusive::new(0, 1));
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &std::ops::RangeInclusive::new(0, 1)
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take_range(&::std::ops::RangeInclusive::new(0, 1));
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &::std::ops::RangeInclusive::new(0, 1)
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take_range(&std::ops::RangeTo { end: 5 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &std::ops::RangeTo { end: 5 }
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take_range(&::std::ops::RangeTo { end: 5 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &::std::ops::RangeTo { end: 5 }
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take_range(&std::ops::RangeToInclusive { end: 5 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &std::ops::RangeToInclusive { end: 5 }
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take_range(&::std::ops::RangeToInclusive { end: 5 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &::std::ops::RangeToInclusive { end: 5 }
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}
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75
src/test/ui/range/issue-54505-no-literals.rs
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75
src/test/ui/range/issue-54505-no-literals.rs
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// run-rustfix
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// Regression test for changes introduced while fixing #54505
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// This test uses non-literals for Ranges
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// (expecting no parens with borrow suggestion)
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use std::ops::RangeBounds;
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// take a reference to any built-in range
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fn take_range(_r: &impl RangeBounds<i8>) {}
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fn main() {
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take_range(std::ops::Range { start: 0, end: 1 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &std::ops::Range { start: 0, end: 1 }
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take_range(::std::ops::Range { start: 0, end: 1 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &::std::ops::Range { start: 0, end: 1 }
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take_range(std::ops::RangeFrom { start: 1 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &std::ops::RangeFrom { start: 1 }
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take_range(::std::ops::RangeFrom { start: 1 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &::std::ops::RangeFrom { start: 1 }
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take_range(std::ops::RangeFull {});
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &std::ops::RangeFull {}
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take_range(::std::ops::RangeFull {});
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &::std::ops::RangeFull {}
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take_range(std::ops::RangeInclusive::new(0, 1));
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &std::ops::RangeInclusive::new(0, 1)
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take_range(::std::ops::RangeInclusive::new(0, 1));
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &::std::ops::RangeInclusive::new(0, 1)
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take_range(std::ops::RangeTo { end: 5 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &std::ops::RangeTo { end: 5 }
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take_range(::std::ops::RangeTo { end: 5 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &::std::ops::RangeTo { end: 5 }
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take_range(std::ops::RangeToInclusive { end: 5 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &std::ops::RangeToInclusive { end: 5 }
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take_range(::std::ops::RangeToInclusive { end: 5 });
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &::std::ops::RangeToInclusive { end: 5 }
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}
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147
src/test/ui/range/issue-54505-no-literals.stderr
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147
src/test/ui/range/issue-54505-no-literals.stderr
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-literals.rs:16:16
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LL | take_range(std::ops::Range { start: 0, end: 1 });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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| |
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| expected reference, found struct `std::ops::Range`
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| help: consider borrowing here: `&std::ops::Range { start: 0, end: 1 }`
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= note: expected type `&_`
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found type `std::ops::Range<{integer}>`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-literals.rs:21:16
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LL | take_range(::std::ops::Range { start: 0, end: 1 });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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| |
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| expected reference, found struct `std::ops::Range`
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| help: consider borrowing here: `&::std::ops::Range { start: 0, end: 1 }`
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= note: expected type `&_`
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found type `std::ops::Range<{integer}>`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-literals.rs:26:16
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LL | take_range(std::ops::RangeFrom { start: 1 });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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| |
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| expected reference, found struct `std::ops::RangeFrom`
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| help: consider borrowing here: `&std::ops::RangeFrom { start: 1 }`
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= note: expected type `&_`
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found type `std::ops::RangeFrom<{integer}>`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-literals.rs:31:16
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LL | take_range(::std::ops::RangeFrom { start: 1 });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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| |
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| expected reference, found struct `std::ops::RangeFrom`
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| help: consider borrowing here: `&::std::ops::RangeFrom { start: 1 }`
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= note: expected type `&_`
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found type `std::ops::RangeFrom<{integer}>`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-literals.rs:36:16
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LL | take_range(std::ops::RangeFull {});
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| ^^^^^^^^^^^^^^^^^^^^^^
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| |
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| expected reference, found struct `std::ops::RangeFull`
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| help: consider borrowing here: `&std::ops::RangeFull {}`
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= note: expected type `&_`
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found type `std::ops::RangeFull`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-literals.rs:41:16
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LL | take_range(::std::ops::RangeFull {});
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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| |
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| expected reference, found struct `std::ops::RangeFull`
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| help: consider borrowing here: `&::std::ops::RangeFull {}`
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= note: expected type `&_`
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found type `std::ops::RangeFull`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-literals.rs:46:16
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LL | take_range(std::ops::RangeInclusive::new(0, 1));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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| |
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| expected reference, found struct `std::ops::RangeInclusive`
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| help: consider borrowing here: `&std::ops::RangeInclusive::new(0, 1)`
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= note: expected type `&_`
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found type `std::ops::RangeInclusive<{integer}>`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-literals.rs:51:16
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LL | take_range(::std::ops::RangeInclusive::new(0, 1));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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| |
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| expected reference, found struct `std::ops::RangeInclusive`
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| help: consider borrowing here: `&::std::ops::RangeInclusive::new(0, 1)`
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= note: expected type `&_`
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found type `std::ops::RangeInclusive<{integer}>`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-literals.rs:56:16
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LL | take_range(std::ops::RangeTo { end: 5 });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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| |
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| expected reference, found struct `std::ops::RangeTo`
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| help: consider borrowing here: `&std::ops::RangeTo { end: 5 }`
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= note: expected type `&_`
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found type `std::ops::RangeTo<{integer}>`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-literals.rs:61:16
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LL | take_range(::std::ops::RangeTo { end: 5 });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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| |
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| expected reference, found struct `std::ops::RangeTo`
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| help: consider borrowing here: `&::std::ops::RangeTo { end: 5 }`
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= note: expected type `&_`
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found type `std::ops::RangeTo<{integer}>`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-literals.rs:66:16
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LL | take_range(std::ops::RangeToInclusive { end: 5 });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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| |
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| expected reference, found struct `std::ops::RangeToInclusive`
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| help: consider borrowing here: `&std::ops::RangeToInclusive { end: 5 }`
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= note: expected type `&_`
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found type `std::ops::RangeToInclusive<{integer}>`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-literals.rs:71:16
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LL | take_range(::std::ops::RangeToInclusive { end: 5 });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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| |
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| expected reference, found struct `std::ops::RangeToInclusive`
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| help: consider borrowing here: `&::std::ops::RangeToInclusive { end: 5 }`
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= note: expected type `&_`
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found type `std::ops::RangeToInclusive<{integer}>`
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error: aborting due to 12 previous errors
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For more information about this error, try `rustc --explain E0308`.
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57
src/test/ui/range/issue-54505-no-std.rs
Normal file
57
src/test/ui/range/issue-54505-no-std.rs
Normal file
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@ -0,0 +1,57 @@
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// error-pattern: `#[panic_handler]` function required, but not found
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// Regression test for #54505 - range borrowing suggestion had
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// incorrect syntax (missing parentheses).
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// This test doesn't use std
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// (so all Ranges resolve to core::ops::Range...)
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#![no_std]
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#![feature(lang_items)]
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use core::ops::RangeBounds;
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#[cfg(not(target_arch = "wasm32"))]
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#[lang = "eh_personality"]
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extern fn eh_personality() {}
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#[cfg(target_os = "windows")]
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#[lang = "eh_unwind_resume"]
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extern fn eh_unwind_resume() {}
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// take a reference to any built-in range
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fn take_range(_r: &impl RangeBounds<i8>) {}
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fn main() {
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take_range(0..1);
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &(0..1)
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take_range(1..);
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &(1..)
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take_range(..);
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &(..)
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take_range(0..=1);
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &(0..=1)
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take_range(..5);
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &(..5)
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take_range(..=42);
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider borrowing here
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//~| SUGGESTION &(..=42)
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}
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77
src/test/ui/range/issue-54505-no-std.stderr
Normal file
77
src/test/ui/range/issue-54505-no-std.stderr
Normal file
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|
@ -0,0 +1,77 @@
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error: `#[panic_handler]` function required, but not found
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-std.rs:28:16
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|
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LL | take_range(0..1);
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| ^^^^
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||||
| |
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| expected reference, found struct `core::ops::Range`
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||||
| help: consider borrowing here: `&(0..1)`
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||||
|
|
||||
= note: expected type `&_`
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found type `core::ops::Range<{integer}>`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-std.rs:33:16
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|
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LL | take_range(1..);
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| ^^^
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| |
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| expected reference, found struct `core::ops::RangeFrom`
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||||
| help: consider borrowing here: `&(1..)`
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||||
|
|
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= note: expected type `&_`
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found type `core::ops::RangeFrom<{integer}>`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-std.rs:38:16
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|
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LL | take_range(..);
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| ^^
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| |
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||||
| expected reference, found struct `core::ops::RangeFull`
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| help: consider borrowing here: `&(..)`
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||||
|
|
||||
= note: expected type `&_`
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||||
found type `core::ops::RangeFull`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-std.rs:43:16
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|
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LL | take_range(0..=1);
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| ^^^^^
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| |
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| expected reference, found struct `core::ops::RangeInclusive`
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| help: consider borrowing here: `&(0..=1)`
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||||
|
|
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= note: expected type `&_`
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found type `core::ops::RangeInclusive<{integer}>`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-std.rs:48:16
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|
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LL | take_range(..5);
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| ^^^
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||||
| |
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||||
| expected reference, found struct `core::ops::RangeTo`
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||||
| help: consider borrowing here: `&(..5)`
|
||||
|
|
||||
= note: expected type `&_`
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found type `core::ops::RangeTo<{integer}>`
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error[E0308]: mismatched types
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--> $DIR/issue-54505-no-std.rs:53:16
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|
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LL | take_range(..=42);
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| ^^^^^
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||||
| |
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||||
| expected reference, found struct `core::ops::RangeToInclusive`
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||||
| help: consider borrowing here: `&(..=42)`
|
||||
|
|
||||
= note: expected type `&_`
|
||||
found type `core::ops::RangeToInclusive<{integer}>`
|
||||
|
||||
error: aborting due to 7 previous errors
|
||||
|
||||
For more information about this error, try `rustc --explain E0308`.
|
||||
43
src/test/ui/range/issue-54505.fixed
Normal file
43
src/test/ui/range/issue-54505.fixed
Normal file
|
|
@ -0,0 +1,43 @@
|
|||
// run-rustfix
|
||||
|
||||
// Regression test for #54505 - range borrowing suggestion had
|
||||
// incorrect syntax (missing parentheses).
|
||||
|
||||
use std::ops::RangeBounds;
|
||||
|
||||
|
||||
// take a reference to any built-in range
|
||||
fn take_range(_r: &impl RangeBounds<i8>) {}
|
||||
|
||||
|
||||
fn main() {
|
||||
take_range(&(0..1));
|
||||
//~^ ERROR mismatched types [E0308]
|
||||
//~| HELP consider borrowing here
|
||||
//~| SUGGESTION &(0..1)
|
||||
|
||||
take_range(&(1..));
|
||||
//~^ ERROR mismatched types [E0308]
|
||||
//~| HELP consider borrowing here
|
||||
//~| SUGGESTION &(1..)
|
||||
|
||||
take_range(&(..));
|
||||
//~^ ERROR mismatched types [E0308]
|
||||
//~| HELP consider borrowing here
|
||||
//~| SUGGESTION &(..)
|
||||
|
||||
take_range(&(0..=1));
|
||||
//~^ ERROR mismatched types [E0308]
|
||||
//~| HELP consider borrowing here
|
||||
//~| SUGGESTION &(0..=1)
|
||||
|
||||
take_range(&(..5));
|
||||
//~^ ERROR mismatched types [E0308]
|
||||
//~| HELP consider borrowing here
|
||||
//~| SUGGESTION &(..5)
|
||||
|
||||
take_range(&(..=42));
|
||||
//~^ ERROR mismatched types [E0308]
|
||||
//~| HELP consider borrowing here
|
||||
//~| SUGGESTION &(..=42)
|
||||
}
|
||||
43
src/test/ui/range/issue-54505.rs
Normal file
43
src/test/ui/range/issue-54505.rs
Normal file
|
|
@ -0,0 +1,43 @@
|
|||
// run-rustfix
|
||||
|
||||
// Regression test for #54505 - range borrowing suggestion had
|
||||
// incorrect syntax (missing parentheses).
|
||||
|
||||
use std::ops::RangeBounds;
|
||||
|
||||
|
||||
// take a reference to any built-in range
|
||||
fn take_range(_r: &impl RangeBounds<i8>) {}
|
||||
|
||||
|
||||
fn main() {
|
||||
take_range(0..1);
|
||||
//~^ ERROR mismatched types [E0308]
|
||||
//~| HELP consider borrowing here
|
||||
//~| SUGGESTION &(0..1)
|
||||
|
||||
take_range(1..);
|
||||
//~^ ERROR mismatched types [E0308]
|
||||
//~| HELP consider borrowing here
|
||||
//~| SUGGESTION &(1..)
|
||||
|
||||
take_range(..);
|
||||
//~^ ERROR mismatched types [E0308]
|
||||
//~| HELP consider borrowing here
|
||||
//~| SUGGESTION &(..)
|
||||
|
||||
take_range(0..=1);
|
||||
//~^ ERROR mismatched types [E0308]
|
||||
//~| HELP consider borrowing here
|
||||
//~| SUGGESTION &(0..=1)
|
||||
|
||||
take_range(..5);
|
||||
//~^ ERROR mismatched types [E0308]
|
||||
//~| HELP consider borrowing here
|
||||
//~| SUGGESTION &(..5)
|
||||
|
||||
take_range(..=42);
|
||||
//~^ ERROR mismatched types [E0308]
|
||||
//~| HELP consider borrowing here
|
||||
//~| SUGGESTION &(..=42)
|
||||
}
|
||||
75
src/test/ui/range/issue-54505.stderr
Normal file
75
src/test/ui/range/issue-54505.stderr
Normal file
|
|
@ -0,0 +1,75 @@
|
|||
error[E0308]: mismatched types
|
||||
--> $DIR/issue-54505.rs:14:16
|
||||
|
|
||||
LL | take_range(0..1);
|
||||
| ^^^^
|
||||
| |
|
||||
| expected reference, found struct `std::ops::Range`
|
||||
| help: consider borrowing here: `&(0..1)`
|
||||
|
|
||||
= note: expected type `&_`
|
||||
found type `std::ops::Range<{integer}>`
|
||||
|
||||
error[E0308]: mismatched types
|
||||
--> $DIR/issue-54505.rs:19:16
|
||||
|
|
||||
LL | take_range(1..);
|
||||
| ^^^
|
||||
| |
|
||||
| expected reference, found struct `std::ops::RangeFrom`
|
||||
| help: consider borrowing here: `&(1..)`
|
||||
|
|
||||
= note: expected type `&_`
|
||||
found type `std::ops::RangeFrom<{integer}>`
|
||||
|
||||
error[E0308]: mismatched types
|
||||
--> $DIR/issue-54505.rs:24:16
|
||||
|
|
||||
LL | take_range(..);
|
||||
| ^^
|
||||
| |
|
||||
| expected reference, found struct `std::ops::RangeFull`
|
||||
| help: consider borrowing here: `&(..)`
|
||||
|
|
||||
= note: expected type `&_`
|
||||
found type `std::ops::RangeFull`
|
||||
|
||||
error[E0308]: mismatched types
|
||||
--> $DIR/issue-54505.rs:29:16
|
||||
|
|
||||
LL | take_range(0..=1);
|
||||
| ^^^^^
|
||||
| |
|
||||
| expected reference, found struct `std::ops::RangeInclusive`
|
||||
| help: consider borrowing here: `&(0..=1)`
|
||||
|
|
||||
= note: expected type `&_`
|
||||
found type `std::ops::RangeInclusive<{integer}>`
|
||||
|
||||
error[E0308]: mismatched types
|
||||
--> $DIR/issue-54505.rs:34:16
|
||||
|
|
||||
LL | take_range(..5);
|
||||
| ^^^
|
||||
| |
|
||||
| expected reference, found struct `std::ops::RangeTo`
|
||||
| help: consider borrowing here: `&(..5)`
|
||||
|
|
||||
= note: expected type `&_`
|
||||
found type `std::ops::RangeTo<{integer}>`
|
||||
|
||||
error[E0308]: mismatched types
|
||||
--> $DIR/issue-54505.rs:39:16
|
||||
|
|
||||
LL | take_range(..=42);
|
||||
| ^^^^^
|
||||
| |
|
||||
| expected reference, found struct `std::ops::RangeToInclusive`
|
||||
| help: consider borrowing here: `&(..=42)`
|
||||
|
|
||||
= note: expected type `&_`
|
||||
found type `std::ops::RangeToInclusive<{integer}>`
|
||||
|
||||
error: aborting due to 6 previous errors
|
||||
|
||||
For more information about this error, try `rustc --explain E0308`.
|
||||
Loading…
Add table
Add a link
Reference in a new issue