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These tests reveal that the edges are in some cases
too strict.
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Prevent the borrow counter from overflowing in `Ref::clone`
Fixes #33880.
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Correct grammar; and remove redundant comment
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Emit "no-frame-pointer-elim" attribute for closures, shims, and glue.
This will hopefully let `perf` give better backtraces.
r? @nikomatsakis
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Move driver::Resolutions::def_map out of its RefCell.
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Use Path::is_dir() in fs::read_dir()'s example.
Basically reverts #25508. The `is_dir()` function has been stable since 1.5.0.
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run rustfmt on librustc_llvm folder
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Fix the span of generated `#[derive_*]` attributes
Fixes #33571.
r? @nrc
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print enum variant fields in docs
Right now we are repeating enum variants at the top, because the fields aren't shown with the actual docs. It's very annoying to have to scroll up and down to have both docs and field info. For struct variants we already list the fields.
enum docs look like this after this PR:
There are degenerate cases for enum tuple variants with lots of fields:
I was thinking that we could move the docs below the variant (slightly indented) or list the variant fields vertically instead of horizontally
r? @steveklabnik
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run rustfmt on libunwind
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run rustfmt on librand folder
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rustfmt liballoc folder
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Improve err expl
r? @steveklabnik
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Improve E0133 error explanation
r? @steveklabnik
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Improve E0132 error explanation
r? @steveklabnik
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Added examples/docs to split in str.rs
Added documentation clarifying the behavior of split when used with the empty string and contiguous separators. Addresses issue [33882](https://github.com/rust-lang/rust/issues/33882). This is my first time contributing to rust, so forgive me if I'm skipping any of the contribution steps.
Fixes #33882
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Fix compile_fail tag
Fixes #33780
r? @steveklabnik
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Basically reverts #25508. The `is_dir()` function has been stable since 1.5.0.
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Fixes #33880.
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Separate bindings from other patterns in HIR
Now when name resolution is done on AST, we can avoid dumping everything that looks like an identifier into `PatKind::Ident` in HIR.
`hir::PatKind::Ident` is removed, fresh bindings are now called `hir::PatKind::Binding`, everything else goes to `hir::PatKind::Path`.
I intend to do something with `PatKind::Path`/`PatKind::QPath` as well using resolution results, but it requires some audit and maybe some deeper refactoring of relevant resolution/type checking code to do it properly.
I'm submitting this part of the patch earlier to notify interested parties that I'm working on this.
cc @jseyfried
r? @eddyb
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antlr grammar verification script now compiles under latest nightly
This is kind of a moving target, since none of libsyntax is stable, but at least this compiles for the time being.
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save-analysis: be a bit more defensive with field sub-expressions
Prevents an ice with `(...).f` since the sub-expression is in the AST but not the HIR.
We could actually do better in this specific case, but it doesn't seem worth it.
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Prevent overflows by increasing ring buffer size
Please note that this change is just done to prevent
issues as currently seen by syntex_syntax in future.
See https://github.com/serde-rs/syntex/pull/47 for details.
As shown in https://github.com/serde-rs/syntex/issues/33,
complex code can easily overflow the ring-buffer and
cause an assertion error.
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test: Use `set sysroot` for more NDK compatibility
Recent versions of the Android NDK no longer ship debuggers like
`arm-linux-androideabi-gdb`, but instead one prebuilt binary `gdb`. We can
symlink this into place at least to get our detection still working, but it now
needs to be told what the sysroot is so it can correctly do... something. Long
story short, tests didn't pass with this change and after this change they pass.
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rustbuild: Add support for --enable-local-rust
This commit adds support for the `--enable-local-rust` `./configure` switch
which uses the locally installed `rustc` to bootstrap the compiler.
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Please note that this change is just done to prevent
issues as currently seen by syntex_syntax in future.
See https://github.com/serde-rs/syntex/pull/47 for details.
As shown in https://github.com/serde-rs/syntex/issues/33,
complex code can easily overflow the ring-buffer and
cause an assertion error.
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Do not inject test harness for --cfg test
Fix #33670.
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Implement Error trait for fmt::Error type
Fixes #33827.
r? @alexcrichton
Just one last thing: I added a feature name, but don't hesitate to ask me to change it if you think it doesn't fit well.
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Apply visit_path to import prefixes by default
Overriding `visit_path` is not enough to visit all paths, some import prefixes are not visited and `visit_path_list_item` need to be overridden as well. This PR removes this catch, it should be less error prone this way. Also, the prefix is visited once now, not repeatedly for each path list item.
r? @eddyb
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refactor autoderef to avoid prematurely registering obligations
Refactor `FnCtxt::autoderef` to use an external iterator and to not
register any obligation from the main autoderef loop, but rather to
register them after (and if) the loop successfully completes.
Fixes #24819
Fixes #25801
Fixes #27631
Fixes #31258
Fixes #31964
Fixes #32320
Fixes #33515
Fixes #33755
r? @eddyb
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Implement `count` for `EscapeUnicode`
and cleanup the code for `count` for `EscapeDefault` (instead of repeating the `match` for `size_hint` and `count`).
This PR marks EscapeUnicode and EscapeDefault as ExactSizeIterator. The constraints for the trait implementations held even before this PR, but I am not sure if this is something we want to guarantee/expose (I would love feedback on this, especially on what would be the appropriate way to handle stabilisation, if needed).
Part of #24214, split from #31049.
The test for `count` was added in #33103.
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std: Use memalign, not posix_memalign, on Android
We've gotten requests to move our Android support as far back as API level 9
where unfortunately the `posix_memalign` API wasn't implemented yet. Thankfully,
however, the `memalign` API was and it appears to be usable with `free` on the
Android platform (see comments included in commit).
This should help fix some of the last few test failures when compiling against
API level 9.
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panic.rs: fix docs (recover -> catch_unwind)
The current docs are a bit inconsistent. First, change all references of "recover" to "catch_unwind" because the function was renamed. Second, consistently use the term "unwind safe" instead of "panic safe", "exception safe" and "recover safe" (all these terms were used previously).
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Propagate obligations through projection
Up next: generating region obligations in inference.
r? @nikomatsakis
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r=nikomatsakis
Increase spacing in error format for readability.
Two small tweaks that seem to help readability quite a bit:
* Add spacing header<->snippet, but use the |> on the side for visual consistency
* Fix #33819
* Fix #33763
* Move format-sensitive test (issue-26480 in cfail) to ui test
r? @nikomatsakis
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save-analysis: use a function's short name
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Perform `cfg` attribute processing during macro expansion and fix bugs
This PR refactors `cfg` attribute processing and fixes bugs. More specifically:
- It merges gated feature checking for stmt/expr attributes, `cfg_attr` processing, and `cfg` processing into a single fold.
- This allows feature gated `cfg` variables to be used in `cfg_attr` on unconfigured items. All other feature gated attributes can already be used on unconfigured items.
- It performs `cfg` attribute processing during macro expansion instead of after expansion so that macro-expanded items are configured the same as ordinary items. In particular, to match their non-expanded counterparts,
- macro-expanded unconfigured macro invocations are no longer expanded,
- macro-expanded unconfigured macro definitions are no longer usable, and
- feature gated `cfg` variables on macro-expanded macro definitions/invocations are now errors.
This is a [breaking-change]. For example, the following would break:
```rust
macro_rules! m {
() => {
#[cfg(attr)]
macro_rules! foo { () => {} }
foo!(); // This will be an error
macro_rules! bar { () => { fn f() {} } }
#[cfg(attr)] bar!(); // This will no longer be expanded ...
fn g() { f(); } // ... so that `f` will be unresolved.
#[cfg(target_thread_local)] // This will be a gated feature error
macro_rules! baz { () => {} }
}
}
m!();
```
r? @nrc
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