Cleanup: Eliminate ConstnessAnd
This is almost a behaviour-free change and purely a refactoring. "almost" because we appear to be using the wrong ParamEnv somewhere already, and this is now exposed by failing a test using the unstable `~const` feature.
We most definitely need to review all `without_const` and at some point should probably get rid of many of them by using `TraitPredicate` instead of `TraitRef`.
This is a continuation of https://github.com/rust-lang/rust/pull/90274.
r? `@oli-obk`
cc `@spastorino` `@ecstatic-morse`
I'd been thinking about implementing snapshot testing for a while, but
This test is what finally made me do it. It really benefits from using
snapshot testing, so it's a good initial place to use `@snapshot`.
... if they use arbitrary enum discriminant. Code like
```rust
enum Enum {
Foo = 1,
Bar(),
Baz{}
}
```
seems to be unintentionally allowed so we couldn't disallow them now,
but we could disallow them if arbitrary enum discriminant is used before
1.56 hits stable.
Add tests for `normalize-docs` overflow errors
`@b-naber` do you understand why using `try_normalize_erasing_regions` doesn't silence these cycle errors? Rustdoc isn't emitting them, rustc is aborting before returning an error, even though the function has `try_` in the name.
cc https://github.com/rust-lang/rust/issues/82692, https://github.com/rust-lang/rust/pull/91255
expand: Turn `ast::Crate` into a first class expansion target
And stop creating a fake `mod` item for the crate root when expanding a crate, thus addressing FIXMEs left in https://github.com/rust-lang/rust/pull/82238, and making a step towards a proper support for crate-level macro attributes (cc #54726).
I haven't added token collection support for the whole crate in this PR, maybe later.
r? `@Aaron1011`
Deny warnings in rustdoc non-UI tests
These warnings were silently ignored since they did not appear in a
`.stderr` file and did not fail the test. With this change, warnings in
tests are denied, causing the tests to fail if they have warnings.
This change has already led me to find a bug in rustdoc (#91274) and a
useless test (`src/test/rustdoc/primitive/primitive-generic-impl.rs`,
though its uselessness is unrelated to its warnings).
r? `@jyn514`
Add support for LLVM coverage mapping format versions 5 and 6
This PR cherry-pick's Swatinem's initial commit in unsubmitted PR #90047.
My additional commit augments Swatinem's great starting point, but adds full support for LLVM
Coverage Mapping Format version 6, conditionally, if compiling with LLVM 13.
Version 6 requires adding the compilation directory when file paths are
relative, and since Rustc coverage maps use relative paths, we should
add the expected compilation directory entry.
Note, however, that with the compilation directory, coverage reports
from `llvm-cov show` can now report file names (when the report includes
more than one file) with the full absolute path to the file.
This would be a problem for test results, but the workaround (for the
rust coverage tests) is to include an additional `llvm-cov show`
parameter: `--compilation-dir=.`
Remove all migrate.nll.stderr files
There are a few ui tests that setup the revisions like:
```rust
// revisions: migrate nll`
// [nll]compile-flags: -Zborrowck=mir
```
However most of them fail to disable the nll compare mode like this:
```rust
// ignore-compare-mode-nll
```
This ends up generating confusing files ending in `.migrate.nll.stderr` because the nll compare mode is run on top of the migrate revision.
This PR fixes this by adding `ignore-compare-mode-nll` to these tests.
I would have just made these tests use compare modes instead but I assume the reason these tests are messing around with revisions instead of just letting the nll compare mode do its thing is to enforce error annotations for both migrate and nll.
Relying on just compare modes would only have the error annotations for migrate.
When recovering from a `:` in a pattern, use adequate AST pattern
If the suggestion to use `::` instead of `:` in the pattern isn't correct, a second resolution error will be emitted.
This commit augments Swatinem's initial commit in uncommitted PR #90047,
which was a great starting point, but did not fully support LLVM
Coverage Mapping Format version 6.
Version 6 requires adding the compilation directory when file paths are
relative, and since Rustc coverage maps use relative paths, we should
add the expected compilation directory entry.
Note, however, that with the compilation directory, coverage reports
from `llvm-cov show` can now report file names (when the report includes
more than one file) with the full absolute path to the file.
This would be a problem for test results, but the workaround (for the
rust coverage tests) is to include an additional `llvm-cov show`
parameter: `--compilation-dir=.`
CTFE: support assert_zero_valid and assert_uninit_valid
This ensures the implementation of all three type-based assert_ intrinsics remains consistent in Miri.
`assert_inhabited` recently got stabilized in https://github.com/rust-lang/rust/pull/90896 (meaning stable `const fn` can call it), so do the same with these other intrinsics.
Cc ```@rust-lang/wg-const-eval```
tests: Ignore `test/debuginfo/rc_arc.rs` on windows-gnu
The tests checks some pretty-printer output, but pretty-printers are not embedded on windows-gnu.
Regressed in https://github.com/rust-lang/rust/pull/85448.
This commit is intended to follow the stabilization disposition of the
FCP that has now finished in #84223. This stabilizes the ability to flag
thread local initializers as `const` expressions which enables the macro
to generate more efficient code for accessing it, notably removing
runtime checks for initialization.
More information can also be found in #84223 as well as the tests where
the feature usage was removed in this PR.
Closes#84223
Take a LocalDefId in expect_*item.
Items and item-likes are always HIR owners.
When trying to find such nodes, there is no ambiguity, the `LocalDefId` and the `HirId::owner` always match.
In such cases, `local_def_id_to_hir_id` does not carry any meaningful information, so we can just skip calling it altogether.
