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bors[bot] 18a6dd4635
Merge #4982 
4982: Bump chalk r=matklad a=lnicola

This passes the tests, but fails in a weird way on `analysis-stats`:

```
thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', /home/me/.cargo/registry/src/github.com-1ecc6299db9ec823/chalk-solve-0.14.0/src/clauses/builtin_traits/fn_family.rs:96:20
stack backtrace:
   0: backtrace::backtrace::libunwind::trace
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
   1: backtrace::backtrace::trace_unsynchronized
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
   2: std::sys_common::backtrace::_print_fmt
             at src/libstd/sys_common/backtrace.rs:78
   3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
             at src/libstd/sys_common/backtrace.rs:59
   4: core::fmt::write
             at src/libcore/fmt/mod.rs:1076
   5: std::io::Write::write_fmt
             at src/libstd/io/mod.rs:1537
   6: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:62
   7: std::sys_common::backtrace::print
             at src/libstd/sys_common/backtrace.rs:49
   8: std::panicking::default_hook::{{closure}}
             at src/libstd/panicking.rs:198
   9: std::panicking::default_hook
             at src/libstd/panicking.rs:218
  10: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:477
  11: rust_begin_unwind
             at src/libstd/panicking.rs:385
  12: core::panicking::panic_fmt
             at src/libcore/panicking.rs:86
  13: core::panicking::panic
             at src/libcore/panicking.rs:51
  14: chalk_solve::clauses::builtin_traits::fn_family::add_fn_trait_program_clauses
  15: chalk_solve::clauses::builder::ClauseBuilder<I>::push_binders
  16: chalk_solve::clauses::program_clauses_that_could_match
  17: chalk_solve::clauses::program_clauses_for_goal
  18: chalk_solve::recursive::Solver<I>::solve_new_subgoal
  19: <chalk_solve::recursive::Solver<I> as chalk_solve::recursive::solve::SolveDatabase<I>>::solve_goal
  20: chalk_solve::recursive::Solver<I>::solve_root_goal
  21: chalk_solve::solve::Solver<I>::solve_limited
  22: ra_hir_ty::traits::trait_solve_query
  23: salsa::runtime::Runtime<DB>::execute_query_implementation
  24: salsa::derived::slot::Slot<DB,Q,MP>::read_upgrade
  25: salsa::derived::slot::Slot<DB,Q,MP>::read
  26: <salsa::derived::DerivedStorage<DB,Q,MP> as salsa::plumbing::QueryStorageOps<DB,Q>>::try_fetch
  27: salsa::QueryTable<DB,Q>::get
  28: <T as ra_hir_ty::db::HirDatabase>::trait_solve
  29: ra_hir_ty::infer::InferenceContext::resolve_ty_as_possible
  30: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::infer_expr_inner
  31: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::infer_expr_coerce
  32: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::check_call_arguments
  33: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::infer_method_call
  34: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::infer_expr_inner
  35: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::infer_expr
  36: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::infer_method_call
  37: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::infer_expr_inner
  38: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::infer_expr_coerce
  39: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::infer_expr_inner
  40: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::infer_expr_inner
  41: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::infer_expr_coerce
  42: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::infer_expr_inner
  43: ra_hir_ty::infer::expr::<impl ra_hir_ty::infer::InferenceContext>::infer_expr_coerce
  44: ra_hir_ty::infer::infer_query
  45: salsa::runtime::Runtime<DB>::execute_query_implementation
  46: salsa::derived::slot::Slot<DB,Q,MP>::read_upgrade
  47: salsa::derived::slot::Slot<DB,Q,MP>::read
  48: <salsa::derived::DerivedStorage<DB,Q,MP> as salsa::plumbing::QueryStorageOps<DB,Q>>::try_fetch
  49: ra_hir_ty::db::infer_wait
  50: rust_analyzer::cli::analysis_stats::analysis_stats
  51: rust_analyzer::main
  52: std::rt::lang_start::{{closure}}
  53: std::rt::lang_start_internal::{{closure}}
             at src/libstd/rt.rs:52
  54: std::panicking::try::do_call
             at src/libstd/panicking.rs:297
  55: std::panicking::try
             at src/libstd/panicking.rs:274
  56: std::panic::catch_unwind
             at src/libstd/panic.rs:394
  57: std::rt::lang_start_internal
             at src/libstd/rt.rs:51
  58: main
  59: __libc_start_main
  60: _start
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
```

It's as if we're returning `None` for a well-known trait that `chalk` asks about. That seems to happen for `Deref`, `CoerceUnsized` and `Try`.

r? @flodiebold

Co-authored-by: Laurențiu Nicola <lnicola@dend.ro>
2020-06-27 09:50:08 +00:00
.cargo Alternative quite tests alias 2019-11-20 22:22:32 +03:00
.github Fix conflict between nightly branch and tag 2020-05-25 16:31:19 +02:00
.vscode vscode client side tests 2020-05-20 22:31:39 +03:00
crates Merge #4982 2020-06-27 09:50:08 +00:00
docs Document test minimality 2020-06-26 18:41:11 +02:00
editors/code Merge #5017 2020-06-26 16:52:53 +00:00
xtask Add sponsors section to changelog 2020-06-22 15:11:22 +02:00
.gitattributes Set text to autodetect and use LF 2019-11-14 19:44:37 -05:00
.gitignore Don't store generated docs in the repo 2020-06-03 18:26:50 +02:00
bors.toml Fix bors config? 2020-05-24 16:07:46 +02:00
Cargo.lock Merge #4982 2020-06-27 09:50:08 +00:00
Cargo.toml Upgrade Chalk 2020-05-27 21:07:08 +02:00
LICENSE-APACHE Licenses 2018-01-10 22:47:04 +03:00
LICENSE-MIT Licenses 2018-01-10 22:47:04 +03:00
README.md Add Embark Studios to the sponsors list 2020-06-15 15:06:03 +02:00
rustfmt.toml Remove forcing \n via rustfmt 2019-11-02 22:19:59 +03:00

README.md

rust-analyzer logo

rust-analyzer is an experimental modular compiler frontend for the Rust language. It is a part of a larger rls-2.0 effort to create excellent IDE support for Rust. If you want to get involved, check the rls-2.0 working group:

https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Fwg-rls-2.2E0

Work on rust-analyzer is sponsored by

Ferrous Systems

Quick Start

https://rust-analyzer.github.io/manual.html#installation

Documentation

If you want to contribute to rust-analyzer or are just curious about how things work under the hood, check the ./docs/dev folder.

If you want to use rust-analyzer's language server with your editor of choice, check the manual folder. It also contains some tips & tricks to help you be more productive when using rust-analyzer.

Communication

For usage and troubleshooting requests, please use "IDEs and Editors" category of the Rust forum:

https://users.rust-lang.org/c/ide/14

For questions about development and implementation, join rls-2.0 working group on Zulip:

https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Frls-2.2E0

Quick Links

License

Rust analyzer is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0).

See LICENSE-APACHE and LICENSE-MIT for details.