Dylan DPC 39936fd0b7 Rollup merge of #99222 - atsuzaki:generic_const_err, r=lcnr ... Better error message for generic_const_exprs inference failure Fixes #90531 This code: ```rs #![feature(generic_const_exprs)] fn foo<const N: usize>(_arr: [u64; N + 1]) where [u64; N + 1]: {} fn main() { let arr = [5; 5]; foo(arr); } ``` Will now emit the following error: ```rs warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes --> test.rs:1:12 | 1 | #![feature(generic_const_exprs)] | ^^^^^^^^^^^^^^^^^^^ | = note: `#[warn(incomplete_features)]` on by default = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information error[E0284]: type annotations needed --> test.rs:8:7 | 8 | foo(arr); | ^^^ cannot infer the value of the const parameter `N` declared on the function `foo` | note: required by a bound in `foo` --> test.rs:3:56 | 3 | fn foo<const N: usize>(_arr: [u64; N + 1]) where [u64; N + 1]: {} | ^^^^^ required by this bound in `foo` help: consider specifying the generic argument | 8 | foo::<N>(arr); | +++++ error: aborting due to previous error; 1 warning emitted ``` cc: `@lcnr` thanks a lot again for the help on this		2022-07-14 19:24:06 +05:30
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src	Rollup merge of #99222 - atsuzaki:generic_const_err, r=lcnr	2022-07-14 19:24:06 +05:30
Cargo.toml	Update smallvec to 1.8.1.	2022-06-27 08:48:55 +10:00