Rollup of 6 pull requests #94121
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Rollup of 6 pull requests #94121
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The produced library would get a main shim too which conflicts with the
main shim of the executable linking the library.
```
$ cat > main1.rs <<EOF
fn main() {}
pub fn bar() {}
EOF
$ cat > main2.rs <<EOF
extern crate main1;
fn main() {
main1::bar();
}
EOF
$ rustc --crate-type bin --crate-type lib main1.rs
$ rustc -L. main2.rs
error: linking with `cc` failed: exit status: 1
[...]
= note: /usr/bin/ld: /tmp/crate_bin_lib/libmain1.rlib(main1.main1.707747aa-cgu.0.rcgu.o): in function `main':
main1.707747aa-cgu.0:(.text.main+0x0): multiple definition of `main'; main2.main2.02a148fe-cgu.0.rcgu.o:main2.02a148fe-cgu.0:(.text.main+0x0): first defined here
collect2: error: ld returned 1 exit status
```
useless_format map_flatten useless_conversion needless_bool filter_next clone_on_copy needless_option_as_deref
Suggest copying trait associated type bounds on lifetime error Closes rust-lang#92033 Kind of the most simple suggestion to make - we don't try to be fancy. Turns out, it's still pretty useful (the couple existing tests that trigger this error end up fixed - for this error - upon applying the fix). r? ``@estebank`` cc ``@nikomatsakis``
Deny mixing bin crate type with lib crate types
The produced library would get a main shim too which conflicts with the
main shim of the executable linking the library.
```
$ cat > main1.rs <<EOF
fn main() {}
pub fn bar() {}
EOF
$ cat > main2.rs <<EOF
extern crate main1;
fn main() {
main1::bar();
}
EOF
$ rustc --crate-type bin --crate-type lib main1.rs
$ rustc -L. main2.rs
error: linking with `cc` failed: exit status: 1
[...]
= note: /usr/bin/ld: /tmp/crate_bin_lib/libmain1.rlib(main1.main1.707747aa-cgu.0.rcgu.o): in function `main':
main1.707747aa-cgu.0:(.text.main+0x0): multiple definition of `main'; main2.main2.02a148fe-cgu.0.rcgu.o:main2.02a148fe-cgu.0:(.text.main+0x0): first defined here
collect2: error: ld returned 1 exit status
```
…stebank
Add more info and suggestions to use of #[test] on invalid items
This pr changes the diagnostics for using `#[test]` on an item that can't be used as a test to explain that the attribute has no meaningful effect on non-functions and suggests the use of `#[cfg(test)]` for conditional compilation instead.
Example change:
```rs
#[test]
mod test {}
```
previously output
```
error: only functions may be used as tests
--> src/lib.rs:2:1
|
2 | mod test {}
| ^^^^^^^^^^^
```
now outputs
```
error: the `#[test]` attribute may only be used on a non-associated function
--> $DIR/test-on-not-fn.rs:3:1
|
LL | #[test]
| ^^^^^^^
LL | mod test {}
| ----------- expected a non-associated function, found a module
|
= note: the `#[test]` macro causes a a function to be run on a test and has no effect on non-functions
help: replace with conditional compilation to make the item only exist when tests are being run
|
LL | #[cfg(test)]
| ~~~~~~~~~~~~
```
…ds, r=estebank Do not ICE when inlining a function with un-satisfiable bounds Fixes rust-lang#93008 This is kinda a hack... but it's the fix I thought had the least blast-radius. We use `normalize_param_env_or_error` to verify that the predicates in the param env are self-consistent, since with RevealAll, a bad predicate like `<&'static () as Clone>` will be evaluated with an empty ParamEnv (since it references no generics), and we'll raise an error for it.
Move `{core,std}::stream::Stream` to `{core,std}::async_iter::AsyncIterator`
Following amendments in rust-lang/rfcs#3208.
cc rust-lang#79024
cc ``@yoshuawuyts`` ``@joshtriplett``
…2022, r=oli-obk compiler: clippy::complexity fixes useless_format map_flatten useless_conversion needless_bool filter_next clone_on_copy needless_option_as_deref
rustbot
added
T-compiler
|
@bors r+ rollup=never p=2 |
|
📌 Commit a144ea1 has been approved by |
bors
added
the
S-waiting-on-bors
|
☀️ Test successful - checks-actions |
This was referenced Feb 18, 2022
|
Finished benchmarking commit (b17226f): comparison url. Summary: This benchmark run did not return any relevant results. If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf. @rustbot label: -perf-regression |
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Successful merges:
{core,std}::stream::Streamto{core,std}::async_iter::AsyncIterator#93613 (Move{core,std}::stream::Streamto{core,std}::async_iter::AsyncIterator)Failed merges:
r? @ghost
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