Aleksey Kladov [Mon, 9 Aug 2021 15:56:19 +0000 (18:56 +0300)]
internal: drop latest requests tracking
From the dawn of time, when dinosaurs roamed the and we didn't have
hierarchical profiling, there was the `latest_requests` infra we used to
track the time of ten last requests.
Today, no one is actually using it and, what's more, it itself became
pretty useless -- LSP grew way more chatty, and 10 requests don't really
paint any kind of picture.
Personally, it's been years since I last looked at latest requests in
the status output.
So, let's remove a tiny bit of state from the big ball of complexity
that is `GlobalState` and `main_loop`!
Aleksey Kladov [Mon, 9 Aug 2021 13:06:49 +0000 (16:06 +0300)]
fix: avoid pathological macro expansions
Today, rust-analyzer (and rustc, and bat, and IntelliJ) fail badly on
some kinds of maliciously constructed code, like a deep sequence of
nested parenthesis.
"Who writes 100k nested parenthesis" you'd ask?
Well, in a language with macros, a run-away macro expansion might do
that (see the added tests)! Such expansion can be broad, rather than
deep, so it bypasses recursion check at the macro-expansion layer, but
triggers deep recursion in parser.
In the ideal world, the parser would just handle deeply nested structs
gracefully. We'll get there some day, but at the moment, let's try to be
simple, and just avoid expanding macros with unbalanced parenthesis in
the first place.
Aleksey Kladov [Mon, 9 Aug 2021 12:41:19 +0000 (15:41 +0300)]
internal: remove useless helpers
We generally avoid "syntax only" helper wrappers, which don't do much:
they make code easier to write, but harder to read. They also make
investigations harder, as "find_usages" needs to be invoked both for the
wrapped and unwrapped APIs
bors[bot] [Sun, 8 Aug 2021 22:30:37 +0000 (22:30 +0000)]
Merge #9814
9814: Generate default impl when converting `#[derive(Debug)]` to manual impl r=yoshuawuyts a=yoshuawuyts
This patch makes it so when you convert `#[derive(Debug)]` to a manual impl, a default body is provided that's equivalent to the original output of `#[derive(Debug)]`. This should make it drastically easier to write custom `Debug` impls, especially when all you want to do is quickly omit a single field which is `!Debug`.
This is implemented for enums, record structs, tuple structs, empty structs - and it sets us up to implement variations on this in the future for other traits (like `PartialEq` and `Hash`).
Thanks!
## Codegen diff
This is the difference in codegen for record structs with this patch:
```diff
struct Foo {
bar: String,
}
bors[bot] [Sun, 8 Aug 2021 10:41:45 +0000 (10:41 +0000)]
Merge #9808
9808: fix: Look for enum variants and trait assoc functions when looking for lang items r=matklad a=Veykril
Examples for lang enum variants are the `Option` variants.
Assoc trait functions aren't being seen since they aren't declared in the direct module scope.
bors[bot] [Sat, 7 Aug 2021 15:42:26 +0000 (15:42 +0000)]
Merge #9806
9806: Add proc_macro crate for the 1.56 ABI r=lnicola a=alexjg
I've copied the latest proc macro source from Rust nightly and modified it to compile on `stable`. This fixes #9795 . Almost everything here is uninteresting copy and paste, the interesting stuff is in `crates/proc_macro_srv/src/abis/mod.rs`. I've left the 1.55 ABI implementation in for now. We did discuss only supporting one nightly ABI so we may want to remove 1.55. That will break code which is pinned to older nightly releases but that seems acceptable to me, what do people think?
Co-authored-by: Alex Good <alex@memoryandthought.me>
bors[bot] [Fri, 6 Aug 2021 14:00:29 +0000 (14:00 +0000)]
Merge #9800
9800: feat: Include suggested replacement in diagnostics r=jonas-schievink a=jonas-schievink
rustc renders the diagnostic text for suggestions by including the suggested replacement at the end (`` help: a function with a similar name exists: `boo` ``), but the emitted JSON diagnostic does not include this in the message. This causes our diagnostics to lack some useful info, so this PR fixes that by appending any suggested replacements to the message.
This PR introduce a repetition in the source files `crates/ide_completion/render/pattern.rs` and `crates/ide_completion/render/struct_literal.rs` that may be fix in another PR.
`HirFileId::expansion_info` can return `None` for builtin macros or if there's an error in the macro call or definition, so add a `HirFileId::is_macro` method that checks the right thing.
bors r+
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
- fix: It doesn't try to overwrite parts of selected comments any longer
- fix: It doesn't wrap tail expressions and return types in a result or option unnecessarily
- feat?: It now adds a `const` modifier to the created function if extract somethings from a const context
bors[bot] [Tue, 3 Aug 2021 12:13:05 +0000 (12:13 +0000)]
Merge #9771
9771: Give better error message when the rust-analyzer binary path was set in the user's config but the binary is invalid r=matklad a=rylev
`@yoshuawuyts` and I ran into an issue where my rust-analyzer binary path was set in my extension config (which I didn't realize), but the path set in the config was invalid (it simply wasn't on my path). Having an error message that hinted that the binary's path was explicitly set in the config would have considerably shortened the debug time.
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