Rollup merge of #132949 - clubby789:macro-rules-attr-derive, r=fmease

Add specific diagnostic for using macro_rules macro as attribute/derive

Fixes #132928
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许杰友 Jieyou Xu (Joe) 2024-11-23 20:19:53 +08:00 committed by GitHub
commit f7e3de36fc
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7 changed files with 91 additions and 6 deletions

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@ -4,7 +4,7 @@ error: cannot find macro `something_later` in this scope
LL | something_later!();
| ^^^^^^^^^^^^^^^ consider moving the definition of `something_later` before this call
|
note: a macro with the same name exists, but it appears later at here
note: a macro with the same name exists, but it appears later
--> $DIR/defined-later-issue-121061-2.rs:6:18
|
LL | macro_rules! something_later {

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@ -4,7 +4,7 @@ error: cannot find macro `something_later` in this scope
LL | something_later!();
| ^^^^^^^^^^^^^^^ consider moving the definition of `something_later` before this call
|
note: a macro with the same name exists, but it appears later at here
note: a macro with the same name exists, but it appears later
--> $DIR/defined-later-issue-121061.rs:5:14
|
LL | macro_rules! something_later {

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@ -0,0 +1,9 @@
#![crate_type = "lib"]
macro_rules! sample { () => {} }
#[sample] //~ ERROR cannot find attribute `sample` in this scope
#[derive(sample)] //~ ERROR cannot find derive macro `sample` in this scope
//~| ERROR cannot find derive macro `sample` in this scope
//~| ERROR cannot find derive macro `sample` in this scope
pub struct S {}

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@ -0,0 +1,42 @@
error: cannot find derive macro `sample` in this scope
--> $DIR/macro-rules-as-derive-or-attr-issue-132928.rs:6:10
|
LL | macro_rules! sample { () => {} }
| ------ `sample` exists, but a declarative macro cannot be used as a derive macro
...
LL | #[derive(sample)]
| ^^^^^^
error: cannot find attribute `sample` in this scope
--> $DIR/macro-rules-as-derive-or-attr-issue-132928.rs:5:3
|
LL | macro_rules! sample { () => {} }
| ------ `sample` exists, but a declarative macro cannot be used as an attribute macro
LL |
LL | #[sample]
| ^^^^^^
error: cannot find derive macro `sample` in this scope
--> $DIR/macro-rules-as-derive-or-attr-issue-132928.rs:6:10
|
LL | macro_rules! sample { () => {} }
| ------ `sample` exists, but a declarative macro cannot be used as a derive macro
...
LL | #[derive(sample)]
| ^^^^^^
|
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error: cannot find derive macro `sample` in this scope
--> $DIR/macro-rules-as-derive-or-attr-issue-132928.rs:6:10
|
LL | macro_rules! sample { () => {} }
| ------ `sample` exists, but a declarative macro cannot be used as a derive macro
...
LL | #[derive(sample)]
| ^^^^^^
|
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error: aborting due to 4 previous errors