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skip updating when external binding is existed
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2 changes: 1 addition & 1 deletion
2
...imports/auxiliary/issue-85992-extern-1.rs → ...i/imports/auxiliary/issue-85992-extern.rs
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@@ -1,6 +1,6 @@ | ||
#[macro_export] | ||
macro_rules! m { | ||
() => { | ||
use issue_85992_extern_2::Outcome; | ||
use empty::Outcome; | ||
} | ||
} |
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@@ -1,11 +1,11 @@ | ||
//@ edition: 2021 | ||
//@ compile-flags: --extern issue_85992_extern_1 --extern issue_85992_extern_2 | ||
//@ aux-build: issue-85992-extern-1.rs | ||
//@ aux-build: issue-85992-extern-2.rs | ||
//@ compile-flags: --extern issue_85992_extern --extern empty | ||
//@ aux-build: issue-85992-extern.rs | ||
//@ aux-build: empty.rs | ||
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issue_85992_extern_1::m!(); | ||
issue_85992_extern::m!(); | ||
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use crate::issue_85992_extern_2; | ||
//~^ ERROR unresolved import `crate::issue_85992_extern_2` | ||
use crate::empty; | ||
//~^ ERROR unresolved import `crate::empty` | ||
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fn main() {} |
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@@ -0,0 +1,18 @@ | ||
//@ edition: 2021 | ||
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// issue#128813 | ||
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extern crate core; | ||
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macro_rules! m { | ||
() => { | ||
extern crate std as core; | ||
//~^ ERROR: the name `core` is defined multiple times | ||
}; | ||
} | ||
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m!(); | ||
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fn main() { | ||
use ::core; | ||
} |
22 changes: 22 additions & 0 deletions
22
tests/ui/imports/multiple-extern-by-macro-for-buitlin.stderr
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error[E0259]: the name `core` is defined multiple times | ||
--> $DIR/multiple-extern-by-macro-for-buitlin.rs:9:9 | ||
| | ||
LL | extern crate core; | ||
| ------------------ previous import of the extern crate `core` here | ||
... | ||
LL | extern crate std as core; | ||
| ^^^^^^^^^^^^^^^^^^^^^^^^^ `core` reimported here | ||
... | ||
LL | m!(); | ||
| ---- in this macro invocation | ||
| | ||
= note: `core` must be defined only once in the type namespace of this module | ||
= note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info) | ||
help: you can use `as` to change the binding name of the import | ||
| | ||
LL | extern crate std as other_core; | ||
| | ||
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error: aborting due to 1 previous error | ||
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For more information about this error, try `rustc --explain E0259`. |
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//@ edition: 2021 | ||
//@ aux-build: empty.rs | ||
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// issue#128813 | ||
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extern crate empty; | ||
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macro_rules! m { | ||
() => { | ||
extern crate std as empty; | ||
//~^ ERROR: the name `empty` is defined multiple times | ||
}; | ||
} | ||
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m!(); | ||
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fn main() { | ||
use ::empty; | ||
} |
22 changes: 22 additions & 0 deletions
22
tests/ui/imports/multiple-extern-by-macro-for-custom.stderr
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error[E0259]: the name `empty` is defined multiple times | ||
--> $DIR/multiple-extern-by-macro-for-custom.rs:10:9 | ||
| | ||
LL | extern crate empty; | ||
| ------------------- previous import of the extern crate `empty` here | ||
... | ||
LL | extern crate std as empty; | ||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ `empty` reimported here | ||
... | ||
LL | m!(); | ||
| ---- in this macro invocation | ||
| | ||
= note: `empty` must be defined only once in the type namespace of this module | ||
= note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info) | ||
help: you can use `as` to change the binding name of the import | ||
| | ||
LL | extern crate std as other_empty; | ||
| | ||
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error: aborting due to 1 previous error | ||
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||
For more information about this error, try `rustc --explain E0259`. |
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//@ edition: 2021 | ||
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// issue#128813 | ||
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extern crate non_existent; | ||
//~^ ERROR: can't find crate for `non_existent` | ||
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macro_rules! m { | ||
() => { | ||
extern crate std as non_existent; | ||
//~^ ERROR: the name `non_existent` is defined multiple times | ||
}; | ||
} | ||
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m!(); | ||
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fn main() { | ||
use ::non_existent; | ||
} |
29 changes: 29 additions & 0 deletions
29
tests/ui/imports/multiple-extern-by-macro-for-inexist.stderr
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error[E0463]: can't find crate for `non_existent` | ||
--> $DIR/multiple-extern-by-macro-for-inexist.rs:5:1 | ||
| | ||
LL | extern crate non_existent; | ||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate | ||
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error[E0259]: the name `non_existent` is defined multiple times | ||
--> $DIR/multiple-extern-by-macro-for-inexist.rs:10:9 | ||
| | ||
LL | extern crate non_existent; | ||
| -------------------------- previous import of the extern crate `non_existent` here | ||
... | ||
LL | extern crate std as non_existent; | ||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `non_existent` reimported here | ||
... | ||
LL | m!(); | ||
| ---- in this macro invocation | ||
| | ||
= note: `non_existent` must be defined only once in the type namespace of this module | ||
= note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info) | ||
help: you can use `as` to change the binding name of the import | ||
| | ||
LL | extern crate std as other_non_existent; | ||
| | ||
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error: aborting due to 2 previous errors | ||
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Some errors have detailed explanations: E0259, E0463. | ||
For more information about an error, try `rustc --explain E0259`. |
18 changes: 18 additions & 0 deletions
18
tests/ui/imports/multiple-extern-by-macro-for-underscore.rs
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,18 @@ | ||
//@ edition: 2021 | ||
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// issue#128813 | ||
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extern crate core as _; | ||
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macro_rules! m { | ||
() => { | ||
extern crate std as _; | ||
}; | ||
} | ||
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m!(); | ||
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fn main() { | ||
use ::_; | ||
//~^ ERROR: expected identifier, found reserved identifier `_` | ||
} |
8 changes: 8 additions & 0 deletions
8
tests/ui/imports/multiple-extern-by-macro-for-underscore.stderr
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error: expected identifier, found reserved identifier `_` | ||
--> $DIR/multiple-extern-by-macro-for-underscore.rs:16:11 | ||
| | ||
LL | use ::_; | ||
| ^ expected identifier, found reserved identifier | ||
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error: aborting due to 1 previous error | ||
|