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expand: Do not ICE when a legacy AST-based macro attribute produces and empty expression

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This commit is contained in:
Vadim Petrochenkov 2021-04-03 18:46:25 +03:00
parent 97717a5618
commit cd22425990
3 changed files with 39 additions and 1 deletions
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11
src/test/ui/macros/attr-empty-expr.rs Normal file
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// AST-based macro attributes expanding to an empty expression produce an error and not ICE.
#![feature(custom_test_frameworks)]
#![feature(stmt_expr_attributes)]
#![feature(test)]
fn main() {
let _ = #[test] 0; //~ ERROR removing an expression is not supported in this position
let _ = #[bench] 1; //~ ERROR removing an expression is not supported in this position
let _ = #[test_case] 2; //~ ERROR removing an expression is not supported in this position
}

20
src/test/ui/macros/attr-empty-expr.stderr Normal file
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error: removing an expression is not supported in this position
--> $DIR/attr-empty-expr.rs:8:13
|
LL | let _ = #[test] 0;
| ^^^^^^^
error: removing an expression is not supported in this position
--> $DIR/attr-empty-expr.rs:9:13
|
LL | let _ = #[bench] 1;
| ^^^^^^^^
error: removing an expression is not supported in this position
--> $DIR/attr-empty-expr.rs:10:13
|
LL | let _ = #[test_case] 2;
| ^^^^^^^^^^^^
error: aborting due to 3 previous errors