RUST_LOG supports regex filtering of log messages with a syntax like
`RUST_LOG=main/foo` to use the regex filter 'foo'. Unfortunately, the
filter was inverted, so `RUST_LOG=main/foo` would actually show all
messages except the ones containing 'foo'.
RUST_LOG supports regex filtering of log messages with a syntax like
`RUST_LOG=main/foo` to use the regex filter 'foo'. Unfortunately, the
filter was inverted, so `RUST_LOG=main/foo` would actually show all
messages except the ones containing 'foo'.
Recursive items are currently detected in the `check_const` pass which runs after type checking. This means a recursive static item used as an array length will cause type checking to blow the stack. This PR separates the recursion check out into a separate pass which is run before type checking.
Closes issue #17252
r? @nick29581
Avoids warnings during bootstrap, similar to:
src/librustc/lib.rs:149:1: 149:39 warning: diagnostic code E0099 never used
src/librustc/lib.rs:149 __build_diagnostic_array!(DIAGNOSTICS)
All of these codes stopped being used in this commit:
688ddf7 ("typeck/kind -- stop using old trait framework.")
See also similar fix: https://github.com/rust-lang/rust/issues/16449
This prevents confusing errors when accidentally using an assignment
in an `if` expression. For example:
```rust
fn main() {
let x = 1u;
if x = x {
println!("{}", x);
}
}
```
Previously, this yielded:
```
test.rs:4:16: 4:17 error: expected `:`, found `!`
test.rs:4 println!("{}", x);
^
```
With this change, it now yields:
```
test.rs:3:8: 3:13 error: mismatched types: expected `bool`, found `()` (expected bool, found ())
test.rs:3 if x = x {
^~~~~
```
Closes issue #17283
As per [RFC 52](https://github.com/rust-lang/rfcs/blob/master/active/0052-ownership-variants.md), use `_mut` suffixes to mark mutable variants, and `into_iter` for moving iterators. Additional details and motivation in the RFC.
Note that the iterator *type* names are not changed by this RFC; those are awaiting a separate RFC for standardization.
Closes#13660Closes#16810
[breaking-change]
