internal: fix crash inside `filter_unnecessary_bounds` for a missing generic param
`@Wilfred` reported a crash here shortly after reporting https://github.com/rust-lang/rust-analyzer/issues/16516, which makes us think that the blast radius of ambiguities in Chalk can be larger than expected. This PR tries to be a bit more defensive as a result.
(The 20th frame is the salient frame in the backtrace below.)
<details>
<summary>Backtrace of the crash</summary>
```
request handler panicked: no entry found for key
backtrace:
0: stdx::panic_context::PanicContext::init::{{closure}}::{{closure}}::{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/stdx/src/panic_context.rs:32:43
1: stdx::panic_context::with_backtrace::{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/stdx/src/panic_context.rs:61:32
2: std:🧵:local::LocalKey<T>::try_with
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/local.rs:270:16
3: std:🧵:local::LocalKey<T>::with
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/local.rs:246:9
4: stdx::panic_context::with_backtrace
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/stdx/src/panic_context.rs:61:5
5: stdx::panic_context::PanicContext::init::{{closure}}::{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/stdx/src/panic_context.rs:31:21
6: stdx::panic_context::with_ctx::{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/stdx/src/panic_context.rs:53:20
7: std:🧵:local::LocalKey<T>::try_with
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/local.rs:270:16
8: std:🧵:local::LocalKey<T>::with
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/local.rs:246:9
9: <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
10: std::panicking::rust_panic_with_hook
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:783:13
11: std::panicking::begin_panic_handler::{{closure}}
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
12: std::sys_common::backtrace::__rust_end_short_backtrace
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
13: rust_begin_unwind
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
14: core::panicking::panic_fmt
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
15: core::panicking::panic_display
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:178:5
16: core::panicking::panic_str
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:152:5
17: core::option::expect_failed
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/option.rs:1985:5
18: core::option::Option<T>::expect
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/option.rs:894:21
19: <std::collections:#️⃣:map::HashMap<K,V,S> as core::ops::index::Index<&Q>>::index
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/collections/hash/map.rs:1341:23
20: ide_assists::handlers::generate_function::filter_unnecessary_bounds::{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/ide-assists/src/handlers/generate_function.rs:911:71
21: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &mut F>::call_once
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:305:13
22: core::option::Option<T>::map
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/option.rs:1072:29
23: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::next
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/iter/adapters/map.rs:103:26
24: ide_assists::handlers::generate_function::Graph::compute_reachable_nodes
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/ide-assists/src/handlers/generate_function.rs:1158:20
25: ide_assists::handlers::generate_function::filter_unnecessary_bounds
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/ide-assists/src/handlers/generate_function.rs:912:21
26: ide_assists::handlers::generate_function::fn_generic_params
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/ide-assists/src/handlers/generate_function.rs:640:5
27: ide_assists::handlers::generate_function::FunctionBuilder::from_call
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/ide-assists/src/handlers/generate_function.rs:283:13
28: ide_assists::handlers::generate_function::gen_fn
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/ide-assists/src/handlers/generate_function.rs:78:28
29: ide_assists::handlers::generate_function::generate_function
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/ide-assists/src/handlers/generate_function.rs:55:5
30: ide_assists::assists::{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/ide-assists/src/lib.rs:99:9
31: <core::slice::iter::Iter<T> as core::iter::traits::iterator::Iterator>::for_each
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/slice/iter/macros.rs:254:21
32: ide_assists::assists
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/ide-assists/src/lib.rs:98:5
33: ide::Analysis::assists_with_fixes::{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/ide/src/lib.rs:667:27
34: ide::Analysis::with_db::{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/ide/src/lib.rs:764:29
35: std::panicking::try::do_call
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
36: std::panicking::try
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
37: std::panic::catch_unwind
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
38: salsa::Cancelled::catch
at /var/twsvcscm/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rust-analyzer-salsa-0.17.0-pre.5/src/lib.rs:631:15
39: ide::Analysis::with_db
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/ide/src/lib.rs:764:9
40: ide::Analysis::assists_with_fixes
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/ide/src/lib.rs:656:9
41: rust_analyzer::handlers::request::handle_code_action
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/rust-analyzer/src/handlers/request.rs:1149:19
42: rust_analyzer::dispatch::RequestDispatcher::on_with_thread_intent::{{closure}}::{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/rust-analyzer/src/dispatch.rs:198:54
43: std::panicking::try::do_call
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
44: std::panicking::try
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
45: std::panic::catch_unwind
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
46: rust_analyzer::dispatch::RequestDispatcher::on_with_thread_intent::{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/rust-analyzer/src/dispatch.rs:198:26
47: rust_analyzer::task_pool::TaskPool<T>::spawn::{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/rust-analyzer/src/task_pool.rs:26:33
48: stdx:🧵:pool::Pool::spawn::{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/stdx/src/thread/pool.rs:82:13
49: core::ops::function::FnOnce::call_once{{vtable.shim}}
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
50: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
51: stdx:🧵:pool::Pool:🆕:{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/stdx/src/thread/pool.rs:61:29
52: stdx:🧵:Builder::spawn::{{closure}}
at /data/sandcastle/boxes/eden-trunk-hg-fbcode-fbsource/third-party/rust-analyzer/master/crates/stdx/src/thread.rs:66:13
53: std::sys_common::backtrace::__rust_begin_short_backtrace
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:154:18
54: std:🧵:Builder::spawn_unchecked_::{{closure}}::{{closure}}
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:529:17
55: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
56: std::panicking::try::do_call
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
57: std::panicking::try
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
58: std::panic::catch_unwind
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
59: std:🧵:Builder::spawn_unchecked_::{{closure}}
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:528:30
60: core::ops::function::FnOnce::call_once{{vtable.shim}}
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
61: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
62: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
63: std::sys::unix:🧵:Thread:🆕:thread_start
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys/unix/thread.rs:108:17
64: start_thread
65: clone3
```
</details>
internal: Migrate assists to the structured snippet API, part 6/7
Continuing from #16082
Migrates the following assists:
- `extract_function`
- `generate_getter_or_setter`
- `generate_impl`
- `generate_new`
- `replace_derive_with_manual_impl`
Would've been the final PR in the structured snippet migration series, but I didn't notice that `generate_trait_from_impl` started to use `{insert,replace}_snippet` when I first started the migration 😅. This appears to be a pretty self-contained change, so I'll leave that for a separate future PR.
This also removes the last usages of `render_snippet`, which was a follow up goal of #11638. 🎉
feature: Create `UnindexedProject` notification to be sent to the client
(Note that this branch contains commits from https://github.com/rust-lang/rust-analyzer/pull/15830, which I'll rebase atop of as needed.)
Based on the discussion in https://github.com/rust-lang/rust-analyzer/issues/15837, I've added a notification and off-by-default toggle to send that notification from `handle_did_open_text_document`. I'm happy to rename/tweak this as needed.
I've been using this for a little bit, and it does seem to cause a little bit more indexing/work in rust-analyzer, but it's something that I'll profile as needed, I think.
feat: Add diagnostic with fix to replace trailing `return <val>;` with `<val>`
Works for functions and closures.
Ignores desugared return expressions (e.g. from desugared try operators).
Fixes: #10970
Completes: #11020
feat: Add incorrect case diagnostics for traits and their associated items
Updates incorrect case diagnostic to:
- Check traits and their associated items
- Ignore trait implementations except for patterns in associated function bodies
Also cleans up `hir-ty::diagnostics::decl_check` a bit (mostly to make it a bit more DRY and easier to maintain)
Also fixes: #8675 and fixes: #8225
fix: Recover from missing argument in call expressions
Previously, when parsing an argument list with a missing argument (e.g., `(a, , b)` in `foo(a, , b)`), the parser would stop upon an unexpected token (at the second comma in the example), resulting in an incorrect parse tree.
This commit improves error handling in such cases, ensuring a more accurate parse tree is built.
---
Fixes https://github.com/rust-lang/rust-analyzer/issues/15683.
Previously, when parsing an argument list with a missing argument (e.g.,
`(a, , b)` in `foo(a, , b)`), the parser would stop upon an unexpected
token (at the second comma in the example), resulting in an incorrect
parse tree.
This commit improves error handling in such cases, ensuring a more
accurate parse tree is built.
