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Improve error message when _ is used for in/inout asm operands by Amanieu · Pull...
source link: https://github.com/rust-lang/rust/pull/88209
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This seems like a more general problem plaguing _ uses in an expression position. Like
error[E0658]: destructuring assignments are unstable
--> src/main.rs:3:5
|
3 | _;
| ^
|
= note: see issue #71126 <https://github.com/rust-lang/rust/issues/71126> for more information
error: in expressions, `_` can only be used on the left-hand side of an assignment
--> src/main.rs:3:5
|
3 | _;
| ^ `_` not allowed here
cc @estebank might be of interest to you.
Overall this seems like a good place to provide asm! specific diagnostic. I would perhaps have chosen to word this as "_ is not a valid input operand" or somesuch, but this seems good regardless.
@bors r+
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