tidy: Re-enable check for inline unit tests

2020-12-12T16:18:44+00:00

Allow making `RUSTC_BOOTSTRAP` conditional on the crate name

2020-11-07T18:45:11+00:00

The main change is that `UnstableOptions::from_environment` now requires an (optional) crate name. If the crate name is unknown (`None`), then the new feature is not available and you still have to use `RUSTC_BOOTSTRAP=1`. In practice this means the feature is only available for `--crate-name`, not for `#![crate_name]`; I'm interested in supporting the second but I'm not sure how. Other major changes: - Added `Session::is_nightly_build()`, which uses the `crate_name` of the session - Added `nightly_options::match_is_nightly_build`, a convenience method for looking up `--crate-name` from CLI arguments. `Session::is_nightly_build()`should be preferred where possible, since it will take into account `#![crate_name]` (I think). - Added `unstable_features` to `rustdoc::RenderOptions` There is a user-facing change here: things like `RUSTC_BOOTSTRAP=0` no longer active nightly features. In practice this shouldn't be a big deal, since `RUSTC_BOOTSTRAP` is the opposite of stable and everyone uses `RUSTC_BOOTSTRAP=1` anyway. - Add tests Check against `Cheat`, not whether nightly features are allowed. Nightly features are always allowed on the nightly channel. - Only call `is_nightly_build()` once within a function - Use booleans consistently for rustc_incremental Sessions can't be passed through threads, so `read_file` couldn't take a session. To be consistent, also take a boolean in `write_file_header`.

Add note about possible future improvement

2020-10-01T15:32:23+00:00

Co-authored-by: David Tolnay

Fix 'FIXME' about using NonZeroU32 instead of u32.

2020-09-17T19:54:13+00:00

It was blocked by #58732 (const fn NonZeroU32::new), which is fixed now.

Implementation of incompatible features error

2020-09-04T14:17:28+00:00

If two features are defined as incompatible, using them together would result in an error

feature: replace `lazy_static` by `SyncLazy` from std

2020-09-01T21:06:47+00:00

mv compiler to compiler/

2020-08-30T15:45:07+00:00