fix: Search raw identifiers without prefix
When we find references/usages of a raw identifier, we should disregard `r#` prefix because there are keywords one can use without the prefix in earlier editions (see #13034; this bug is actually fallout from the PR). `name`, the text we're searching for, has already been stripped of the prefix, but the text of nodes we compare it to hasn't been.
The second commit is strictly refactoring, I can remove it if it's not much of value.
fix: Don't expand macros in the same expansion tree after overflow
This patch fixes 2 bugs:
- In `Expander::enter_expand_id()` (and in code paths it's called), we never check whether we've reached the recursion limit. Although it hasn't been reported as far as I'm aware, this may cause hangs or stack overflows if some malformed attribute macro is used on associated items.
- We keep expansion even when recursion limit is reached. Take the following for example:
```rust
macro_rules! foo { () => {{ foo!(); foo!(); }} }
fn main() { foo!(); }
```
We keep expanding the first `foo!()` in each expansion and would reach the limit at some point, *after which* we would try expanding the second `foo!()` in each expansion until it hits the limit again. This will (by default) lead to ~2^128 expansions.
This is essentially what's happening in #14074. Unlike rustc, we don't just stop expanding macros when we fail as long as it produces some tokens so that we can provide completions and other services in incomplete macro calls.
This patch provides a method that takes care of recursion depths (`Expander::within_limit()`) and stops macro expansions in the whole macro expansion tree once it detects recursion depth overflow. To be honest, I'm not really satisfied with this fix because it can still be used in unintended ways to bypass overflow checks, and I'm still seeking ways such that misuses are caught by the compiler by leveraging types or something.
Fixes#14074
Update cargo
10 commits in 82c3bb79e3a19a5164e33819ef81bfc2c984bc56..39c13e67a5962466cc7253d41bc1099bbcb224c3 2023-02-04 22:52:16 +0000 to 2023-02-12 02:01:08 +0000
- chore: Update to toml v0.6, toml_edit v0.18 (rust-lang/cargo#11618)
- doc: more doc comments and intra-doc links (rust-lang/cargo#11703)
- Deny warnings in CI, not locally (rust-lang/cargo#11699)
- add comment to lto.rs (rust-lang/cargo#11701)
- Re-export cargo_new::NewProjectKind as public (rust-lang/cargo#11700)
- Add '-C' flag for changing current dir before build (rust-lang/cargo#10952)
- `-Zrustdoc-scrape-example` must fail with bad build script (rust-lang/cargo#11694)
- Update CHANGELOG for 1.68 backports (rust-lang/cargo#11690)
- Update 1password to the version 2 CLI (rust-lang/cargo#11692)
- chore: autolabel more for `A-*` (rust-lang/cargo#11679)
r? `@ghost`
Rollup of 8 pull requests
Successful merges:
- #107902 (fix: improve the suggestion on future not awaited)
- #107913 (Update broken link in cargo style guide)
- #107942 (Tighter spans for bad inherent `impl` self types)
- #107948 (Allow shortcuts to directories to be used for ./x.py fmt)
- #107971 (Clearly document intentional UB in mir-opt tests)
- #107985 (Added another error to be processed in fallback)
- #108002 (Update books)
- #108013 (rustdoc: use a string with one-character codes for search index types)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
fix: don't include `r#` prefix in filesystem changes
Fixes#14131
In addition to fix for #14131, this PR adds raw ident validity checks in rename functionality that we've been missing.
feat: Add clippy configuration section to the manual and update some old keys
Closes#14132
I don't think this is supposed to be under `Diagnostics`, but it does make sense in a way 🤷 (it's probably where someone might look).
minor: Add version placeholder to changelog template
Closes#13967
This isn't great because we need to fill it in manually, but getting the version number from GitHub Actions is a bit annoying.
