Render Markdown in search results
Fixes#32040.
Previously Markdown documentation was not rendered to HTML for search results,
which led to the output not being very readable, particularly for inline code.
This PR fixes that by rendering Markdown to HTML with the help of pulldown-cmark
(the library rustdoc uses to parse Markdown for the main text of documentation).
However, the text for the title attribute (the text shown when you hover over an
element) still uses the plain-text rendering since it is displayed in browsers
as plain-text.
Only these styles will be rendered; everything else is stripped away:
* *italics*
* **bold**
* `inline code`
On Windows, the environment variable NUMBER_OF_PROCESSORS has special
meaning. Unfortunately, you can get different answers, depending on
whether you are enumerating all environment variables or querying a
specific variable. This was causing the src/test/ui/env-vars.rs test
to fail on machines with more than 64 processors when run on Windows.
Moved map_err_ignore to restriction and updated help message
This MR moves map_err_ignore lint from `pedantic` to the `restriction` category of lints and updates the help message to give the user an option to ignore the lint by naming the closure variable e.g. `.map_err(|_ignored| ...`
---
changelog: move map_err_ignore to restriction category
Add lint size_of_in_element_count
Fixes#6381
changelog: Add lint to check for using size_of::<T> or size_of_val::<T> in the count parameter to ptr::copy or ptr::copy_nonoverlapping, which take a count of Ts (And not a count of bytes)
- \[X] Followed [lint naming conventions][lint_naming]
- \[X] Added passing UI tests (including committed `.stderr` file)
- \[ ] `cargo test` passes locally
- \[X] Executed `cargo dev update_lints`
- \[X] Added lint documentation
- \[X] Run `cargo dev fmt`
[lint_naming]: https://rust-lang.github.io/rfcs/0344-conventions-galore.html#lints
Running `cargo test` locally fails with this error:
```
running 1 test
test fmt ... FAILED
failures:
---- fmt stdout ----
status: exit code: 1
stdout:
stderr: error: unable to unlink old fallback exe
error: caused by: Access is denied. (os error 5)
thread 'fmt' panicked at 'Formatting check failed. Run `cargo dev fmt` to update formatting.', tests\fmt.rs:32:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
failures:
fmt
test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
```
But I did run `cargo dev fmt`
Specifically ptr::{sub, wrapping_sub, add, wrapping_add, offset, wrapping_offset} and slice::{from_raw_parts, from_raw_parts_mut}
The lint now also looks for size_of calls through casts (Since offset takes an isize)
Also fix review comments:
- Use const arrays and iterate them for the method/function names
- merge 2 if_chain's into one using a rest pattern
- remove unnecessary unsafe block in test
And make the lint only point to the count expression instead of the entire function call
Previously Markdown documentation was not rendered to HTML for search results,
which led to the output not being very readable, particularly for inline code.
This PR fixes that by rendering Markdown to HTML with the help of pulldown-cmark
(the library rustdoc uses to parse Markdown for the main text of documentation).
However, the text for the title attribute (the text shown when you hover over an
element) still uses the plain-text rendering since it is displayed in browsers
as plain-text.
Only these styles will be rendered; everything else is stripped away:
* *italics*
* **bold**
* `inline code`
Added one more test (two files) showing coverage of generics and unused
functions across crates.
Created and referenced new Issues, as requested.
Added comments.
Added a note about the possible effects of compiler options on LLVM
coverage maps.
Fixes multiple issue with counters, with simplification
Includes a change to the implicit else span in ast_lowering, so coverage
of the implicit else no longer spans the `then` block.
Adds coverage for unused closures and async function bodies.
Fixes: #78542
Adding unreachable regions for known MIR missing from coverage map
Cleaned up PR commits, and removed link-dead-code requirement and tests
Coverage no longer depends on Issue #76038 (`-C link-dead-code` is
no longer needed or enforced, so MSVC can use the same tests as
Linux and MacOS now)
Restrict adding unreachable regions to covered files
Improved the code that adds coverage for uncalled functions (with MIR
but not-codegenned) to avoid generating coverage in files not already
included in the files with covered functions.
Resolved last known issue requiring --emit llvm-ir workaround
Fixed bugs in how unreachable code spans were added.
Tested and validate results for panic unwind, panic abort, assert!()
macro, TerminatorKind::Assert (for example, numeric overflow), and
async/await.
Implemented a previous documented idea to change Assert handling to be
the same as FalseUnwind and Goto, so it doesn't get its own
BasicCoverageBlock anymore. This changed a couple of coverage regions,
but I validated those changes are not any worse than the prior results,
and probably help assure some consistency (even if some people might
disagree with how the code region is consistently computed).
Fixed issue with async/await. AggregateKind::Generator needs to be
handled like AggregateKind::Closure; coverage span for the outer async
function should not "cover" the async body, which is actually executed
in a separate "closure" MIR.
Fix `unknown-crate` when using -Z self-profile with rustdoc
... by removing a duplicate `crate_name` field in `interface::Config`,
making it clear that rustdoc should be passing it to `config::Options` instead.
Unblocks https://github.com/rust-lang/rustc-perf/issues/797.
Add Collapsible match lint
changelog: Add collapsible_match lint
Closes#1252Closes#2521
This lint finds nested `match` or `if let` patterns that can be squashed together. It is designed to be very conservative to only find cases where merging the patterns would most likely reduce cognitive complexity.
Example:
```rust
match result {
Ok(opt) => match opt {
Some(x) => x,
_ => return,
}
_ => return,
}
```
to
```rust
match result {
Ok(Some(x)) => x,
_ => return,
}
```
These criteria must be met for the lint to fire:
* The inner match has exactly 2 branches.
* Both the outer and inner match have a "wild" branch like `_ => ..`. There is a special case for `None => ..` to also be considered "wild-like".
* The contents of the wild branches are identical.
* The binding which "links" the matches is never used elsewhere.
Thanks to the hir, `if let`'s are easily included with this lint since they are desugared into equivalent `match`'es.
I think this would fit into the style category, but I would also understand changing it to pedantic.
add `internal-lints` feature to enable clippys internal lints (off by default)
This PR moves the internal lint tests into a new subdirectory (I couldn't find a different way to compile-time-conditionally exclude them from compiletest) and only builds and tests internal lints if the `internal-lints` feature is enabled.
Fixes#6306
changelog: put internal lints behind a feature ("internal-lints")
Revert "Auto merge of #79209
r? `@nikomatsakis`
This has caused some issues (#79560) so better to revert and try to come up with a proper fix without rush.
Rustdoc: JSON backend experimental impl, with new tests.
Based on #75114 by `@P1n3appl3`
The first commit is all of #75114, but squased to 1 commit, as that was much easier to rebase onto master.
The git history is a mess, but I think I'll edit it after review, so it's obvious whats new.
## Still to do
- [ ] Update docs.
- [ ] Add bless option to tests.
- [ ] Add test option for multiple files in same crate.
- [ ] Decide if the tests should check for json to be equal or subset.
- [ ] Go through the rest of the review for the original pr. (This is open because the test system is done(ish), but stuff like [not using a hashmap](https://github.com/rust-lang/rust/pull/75114#discussion_r519474420) and [using `CRATE_DEF_INDEX` ](https://github.com/rust-lang/rust/pull/75114#discussion_r519470764) hasn't)
I'm also sure how many of these we need to do before landing on nightly, as it would be nice to get this in tree, so it isn't effected by churn like #79125, #79041, #79061
r? `@jyn514`
