In rust-analyzer, we avoid defualt impls for types which don't have
sensible, "empty" defaults. In particular, we avoid using invalid
indices for defaults and similar hacks.
Rather than a "Stable" and "Nightly" ABI we instead name ABIs based on
the version of the rust compiler in which they were introduced. We place
these ABIs in a new module - `proc_macro_srv::abis` - where we also add
some mchinery to abstract over ABIs. This should make it easy to add new
ABIs at a later date as the rust compiler evolves.
9535: internal: remove proc macro management thread r=jonas-schievink a=jonas-schievink
Communication with the proc macro server process has always happened one request at a time, so the additional thread isn't really needed (it just forwarded each request, and sent back the response). This removes some indirection that was a bit hard to understand (a channel was allocated and sent over another channel to return the response).
Hope I'm not missing anything here
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
9569: internal: Explicitly check for reference locals or fields in Name classification r=Veykril a=Veykril
Closes#7524
Inlines all the calls to reference related name classification as well as emits both goto definition targets for field shorthands.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
This treats the consts generated by older synstructure versions like
unnamed consts. We should remove this at some point (at least after
Chalk has switched).
9567: remove unneded special case r=matklad a=matklad
bors r+
🤖
9568: feat: add 'for' postfix completion r=lnicola a=mahdi-frms
adds #9561
used ```ele``` as identifier for each element in the iteration
Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
Co-authored-by: mahdi-frms <mahdif1380@outlook.com>
9553: minor: Disambiguate replace with if let assist labels r=Veykril a=Veykril
Turns out we have two assists for replacing something with `if let` constructs, so having the cursor on a `let` keyword inside a match gave you two identical assist labels which is rather confusing.
bors r+
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9555: feat: Enable `auto_import` on ident patterns r=Veykril a=Veykril
Helpful for when you want to import a type in a pattern right before destructuring it.
9556: Bump deps r=lnicola a=lnicola
bors r+
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
Co-authored-by: Laurențiu Nicola <lnicola@dend.ro>
9548: add: Adding self keyword completion in complete_fn_param r=lnicola a=feniljain
Solves #9522
I haven't added Arc<self> for now as there were some conflicting opinions on it
Co-authored-by: vi_mi <fenil.jain2018@vitstudent.ac.in>
... instead of using `AliasTy`. Chalk turns the alias type into the
placeholder during unification anyway, which confuses our method
resolution logic.
Fixes#9530.
9519: Explicitly name all spawned threads r=weirdsmiley a=weirdsmiley
Fixes: [#9385](https://github.com/rust-analyzer/rust-analyzer/issues/9385)
The thread name is shown in debugger as well as panic messages and this
patch makes it easier to follow a thread instead of looking through
full backtrace, by naming all spawned threads according to their
functioning.
Co-authored-by: Manas <manas18244@iiitd.ac.in>
The thread name is shown in debugger as well as panic messages and this
patch makes it easier to follow a thread instead of looking through
full backtrace, by naming all spawned threads according to their
functioning.
9500: internal: Only inline closure, literal and local arguments when used once r=Veykril a=Veykril
See https://github.com/rust-analyzer/rust-analyzer/pull/9474#discussion_r663881507 for reasoning.
This still inlines single use closures and literals as naming these is usually not as useful. Prime examples being the Option/Result consuming functions like `map_or` etc.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9497: Wrap inlined closures in parens when inlined in an expression in `inline_call` r=Veykril a=Veykril
bors r+
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
Note that, while we don't currently have a fuzzy-matching score, it
makes sense to special-case postfix templates -- it's very annoying when
`.not()` gets sorted before `.not`. We might want to move this infra to
fuzzy matching, once we have that!
Before this PR, SourceChange used a bool and CompletionItem used an enum
to signify if edit is a snippet. It makes sense to use the same pattern
in both cases. `bool` feels simpler, as there's only one consumer of
this API, and all producers are encapsulated anyway (we check the
capability at the production site).
One source completion can produce up to two lsp completions.
Additionally, `preselct` and `sort_text` are global properties of the
whole set of completions, so the right granularity here is to convert
many completions.
As a side-benefit, we no loger allocate intermediate vec.
Moving tests to `rust-analyzer` crate allows removing walkdir dependency
from `xtask`. It does seem more reasonable to keep tidy tests outside of
the "build system" and closer to other integration tests.
* Keep codegen adjacent to the relevant crates.
* Remove codgen deps from xtask, speeding-up from-source installation.
This regresses the release process a bit, as it now needs to run the
tests (and, by extension, compile the code).
9455: feat: Handle not let if expressions in replace_if_let_with_match r=Veykril a=Veykril
Transforms bare `if cond {}` into `_ if cond` guard patterns in the match as long as at least one `if let` is in the if chain, otherwise the assist wont be applicable.
bors r+
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9454: feat: Empower `replace_if_let_with_match` r=Veykril a=Veykril
Now instead of only working on `if let ... {} else {}` if expressions it now works on all of them where the condition expression is the same text-wise.
This includes if let expressions without an else block, in which case a simple `_ => ()` will be generated in the resulting match but also in more complex cases where multiple `if let` expressions are chained.
bors r+
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9452: feat: Add "View Crate Graph (Full)" r=jonas-schievink a=jonas-schievink
Works like "View Crate Graph", but also includes crates.io and sysroot dependencies. The resulting graph might be enormous.
Closes https://github.com/rust-analyzer/rust-analyzer/issues/8867
bors r+
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
9450: internal: Add ModuleOrItem guess to import granularity guessing r=Veykril a=Veykril
I think this should be the last fix needed for this(🤞)
bors r+
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9436: minor: Add test for macro expanded test module in runnables r=Veykril a=Veykril
Expected this to fail as thats behaving incorrectly on current nightly but I think I fixed this accidentally with https://github.com/rust-analyzer/rust-analyzer/pull/9435
bors r+
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9269: Recreate status page r=lnicola a=Milo123459
I'm working on redesigning the status page.
Co-authored-by: Milo <50248166+Milo123459@users.noreply.github.com>
9423: fix: Resolve attribute paths in attribute highlighting r=Veykril a=Veykril
Attributes have a new highlighting format now, whereas the `#[` `]` tokens are now tagged with `attribute.attribute` like before, but all other idents inside token trees are now `generic.attribute`. If a path in an attribute can't be resolved it will instead get the `builtinAttribute.attribute` tags now as highlighting doesn't know about builtins like `allow` yet, so we don't want to emit unresolved references.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9418: internal: Include `self` in usage search for modules in their definition source r=Veykril a=Veykril
bors r+
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
Macro that deep clone the tokens but otherwise preserves source
locations and hygiene info is an interesting case for IDE support. Lets
have this, although we don't actively use it at the moment.
9380: feat: Implement goto_declaration support r=matklad a=Veykril
This is just a simple implementation that falls back to `goto_definition` for everything but modules where it goes to the actual module declaration if possible.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9353: Include extra targets when the pkg_root is not the same as the target root. r=matklad a=rezural
Fixes#7715
For example, if a sub-crate includes sets the path='../somewhere-else/lib.rs', the files will not be in pkg_root , but in the target root's parent.
It may actually be in root.parent().parent(), I'm not sure about that.
At the moment it is just a fix, are there any relevant tests that this could go in? I've got about 1 brain cell left... but im happy to add tests where appropriate.
Co-authored-by: rezural <rezural@protonmail.com>
Definition::visibility was implemented in a rather roundabout way -- by
asking the parent module about the effective visibility.
This is problematic for a couple of reasons:
* first, it doesn't work for local items
* second, asking module about visibility of a child is a linear
operation (that's a problem in itself, tracked in #9378)
Instead, lets ask the declared visibility directly, we have all the code
for it, and need only to actually us it.
9348: output to log file if RA_LOG_FILE is defined in environment r=rezural a=rezural
This adds a check for RA_LOG_FILE, and logs to that if defined. It currently overrides flags.log_file. If this is undesirable, I will add a check.
Co-authored-by: rezural <rezural@protonmail.com>
This story begins in #8384, where we added a smart test for our syntax
highting, which run the algorithm on synthetic files of varying length
in order to guesstimate if the complexity is O(N^2) or O(N)-ish.
The test turned out to be pretty effective, and flagged #9031 as a
change that makes syntax highlighting accidentally quadratic. There was
much rejoicing, for the time being.
Then, lnicola asked an ominous question[1]: "Are we sure that the time
is linear right now?"
Of course it turned out that our sophisticated non-linearity detector
*was* broken, and that our syntax highlighting *was* quadratic.
Investigating that, many brave hearts dug deeper and deeper into the
guts of rust-analyzer, only to get lost in a maze of traits delegating
to traits delegating to macros.
Eventually, matklad managed to peel off all layers of abstraction one by
one, until almost nothing was left. In fact, the issue was discovered in
the very foundation of the rust-analyzer -- in the syntax trees.
Worse, it was not a new problem, but rather a well-know, well-understood
and event (almost) well-fixed (!) performance bug.
The problem lies within `SyntaxNodePtr` type -- a light-weight "address"
of a node in a syntax tree [3]. Such pointers are used by rust-analyzer all
other the place to record relationships between IR nodes and the
original syntax.
Internally, the pointer to a syntax node is represented by node's range.
To "dereference" the pointer, you traverse the syntax tree from the
root, looking for the node with the right range. The inner loop of this
search is finding a node's child whose range contains the specified
range. This inner loop was implemented by naive linear search over all
the children. For wide trees, dereferencing a single `SyntaxNodePtr` was
linear. The problem with wide trees though is that they contain a lot of
nodes! And dereferencing pointers to all the nodes is quadratic in the
size of the file!
The solution to this problem is to speed up the children search --
rather than doing a linear lookup, we can use binary search to locate
the child with the desired interval.
Doing this optimization was one of the motivations (or rather, side
effects) of #6857. That's why `rowan` grew the useful
`child_or_token_at_range` method which does exactly this binary search.
But looks like we've never actually switch to this method? Oups.
Lesson learned: do not leave broken windows in the fundamental infra.
Otherwise, you'll have to repeatedly re-investigate the issue, by
digging from the top of the Everest down to the foundation!
[1]: https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Frust-analyzer/topic/.60syntax_highlighting_not_quadratic.60.20failure/near/240811501
[2]: https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Frust-analyzer/topic/Syntax.20highlighting.20is.20quadratic
[3]: https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Frust-analyzer/topic/Syntax.20highlighting.20is.20quadratic/near/243412392
The completion of cfg will look at the enabled cfg keys when
performing completion.
It will also look crate features when completing a feature cfg
option. A fixed list of known values for some cfg options are
provided.
For unknown keys it will look at the enabled values for that cfg key,
which means that completion will only show enabled options for those.
9264: feat: Make documentation on hover configurable r=Veykril a=Veykril
This also implements deprecation support for config options as this renames `hoverActions_linksInHover` to `hover_linksInHover`.
Fixes#9232
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9227: Add a config setting to disable the 'test' cfg in specified crates r=matklad a=lf-
If you are opening libcore from rust-lang/rust as opposed to e.g.
goto definition from some other crate which would use the sysroot
instance of libcore, a `#![cfg(not(test))]` would previously have made
all the code excluded from the module tree, breaking the editor
experience.
Core does not need to ever be edited with `#[cfg(test)]` enabled,
as the tests are in another crate.
This PR puts in a slight hack that checks for the crate name "core" and
turns off `#[cfg(test)]` for that crate.
Fixes#9203Fixes#9226
Co-authored-by: Jade <software@lfcode.ca>
If you are opening libcore from rust-lang/rust as opposed to e.g.
goto definition from some other crate which would use the sysroot
instance of libcore, a `#![cfg(not(test))]` would previously have made
all the code excluded from the module tree, breaking the editor
experience.
This puts in a slight hack that checks for the crate name "core" and
turns off `#[cfg(test)]`.
9334: feat: Allow to disable import insertion on single path glob imports r=Veykril a=Veykril
On by default as I feel like this is something the majority would prefer.
Closes#8490
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9321: Inline generics in const and function trait completions r=Veykril a=RDambrosio016
This PR does a couple of things:
- moves path_transform from ide_assists to ide_db to be shared by both assists and completions
- when completing a const or a function for a trait, it will "inline" any generics in those associated items instead
of leaving the generic's name. For example:
```rust
trait Foo<T> {
const BAR: T;
fn foo() -> T;
}
struct Bar;
impl Foo<u32> for Bar {
// autocompletes to this
fn foo() -> u32;
// and not this (old)
fn foo() -> T;
// also works for associated consts and where clauses
const BAR: u32 = /* */
}
```
Currently this does not work for const generics, because `PathTransform` does not seem to account for them. If this should work on const generics too, `PathTransform` will need to be changed. However, it is uncommon to implement a trait only for a single const value, so this isnt a huge concern.
Co-authored-by: rdambrosio <rdambrosio016@gmail.com>
9258: minor: Give `ImportPrefix` variants better config names r=matklad a=Veykril
I feel like `crate` and `self` work better than `by_crate` and `by_self`. The only reason for the current names were that `Self` doesn't work for the variant name on the rust side so I forgot about setting proper config names on serde layer.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9294: internal: introduce minicore -- a subset of libcore for testing r=matklad a=matklad
Clearly, we need one more fixed point iteration loop!
Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
It's better to handle magical cases upper in the stack, because it
allows for better re-use of the general implementation below. So, we
pull the `self` case up here.
The end goal is to put `Definition::rename` to the `ide_db`, because
it's a generally re-usable functionality useful for different ide
features, alongside with the search which is already there.
NavigationTarget is strictly a UI-level thing -- it describes where the
cursor should be placed when the user presses goto definition. It
doesn't make any semantic guaratees about rage and focus range and, as
such, is not suitable for driving renames.
9260: tree-wide: make rustdoc links spiky so they are clickable r=matklad a=lf-
Rustdoc was complaining about these while I was running with --document-private-items and I figure they should be fixed.
Co-authored-by: Jade <software@lfcode.ca>
At the moment, this moves only a single diagnostic, but the idea is
reafactor the rest to use the same pattern. We are going to have a
single file per diagnostic. This file will define diagnostics code,
rendering range and fixes, if any. It'll also have all of the tests.
This is similar to how we deal with assists.
After we refactor all diagnostics to follow this pattern, we'll probably
move them to a new `ide_diagnostics` crate.
Not that we intentionally want to test all diagnostics on this layer,
despite the fact that they are generally emitted in the guts on the
compiler. Diagnostics care to much about the end presentation
details/fixes to be worth-while "unit" testing. So, we'll unit-test only
the primary output of compilation process (types and name res tables),
and will use integrated UI tests for diagnostics.
9244: feat: Make block-local trait impls work r=flodiebold a=flodiebold
As long as either the trait or the implementing type are defined in the same block.
CC #8961
Co-authored-by: Florian Diebold <flodiebold@gmail.com>
9239: fix: Fix coercion in match with expected type r=flodiebold a=flodiebold
Plus add infrastructure to test type mismatches without expect.
CC #8961
Co-authored-by: Florian Diebold <flodiebold@gmail.com>
9204: feat: more accurate memory usage info on glibc Linux r=jonas-schievink a=jonas-schievink
This adds support for the new `mallinfo2` API added in glibc 2.33. It addresses a shortcoming in the `mallinfo` API where it was unable to handle memory usage of more than 2 GB, which we sometimes exceed.
Blocked on https://github.com/rust-lang/libc/pull/2228
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
9192: internal: Build test-macros in a build script r=jonas-schievink a=jonas-schievink
This build the test-proc-macros in `proc_macro_test` in a build script, and copies the artifact to `OUT_DIR`. This should make it available throughout all of rust-analyzer at no cost other than depending on `proc_macro_test`, fixing https://github.com/rust-analyzer/rust-analyzer/issues/9067.
This hopefully will let us later write inline tests that utilize proc macros, which makes my life fixing proc macro bugs easier.
Opening this as a sort of RFC, because I'm not totally sure this approach is the best.
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
9202: feat: Make `MemoryUsage` work on Windows r=jonas-schievink a=jonas-schievink
Unfortunately there is no convenient API for heap statistics, so this instead uses the Commit Charge value, which is the amount of memory that needs to be allocated either in physical RAM or in the page file. This approximation seems to be good enough to find queries that waste a large amount of memory, but it should generally be expected to be off by several MB.
bors r+
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
9181: Don't complete values in type position r=jonas-schievink a=Veykril
Will add some proper tests in a bit
9182: fix: don't complete derive macros as fn-like macros r=jonas-schievink a=jonas-schievink
Part of https://github.com/rust-analyzer/rust-analyzer/issues/8518
bors r+
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
9169: internal: steps towards attribute macro token mapping r=jonas-schievink a=jonas-schievink
This doesn't work yet, but we seem to be getting a bit further along (for example, we now stop highlighting `use` items inside item with attribute macros as if they were written verbatim).
bors r+
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
9144: Extend convert_tuple_struct_to_named_struct to also apply to enum tuple variants r=matklad a=joshuawarner32
This is largely copied and adapted from the existing `convert_tuple_struct_to_named_struct` code.
Not sure if maybe some of this code can/should be shared between those two assists - but the differences are significant enough to make it at least seem like a non-trivial refactor.
Co-authored-by: Joshua Warner <joshuawarner32@gmail.com>
9164: internal: Reduce the number of direct fields in `CompletionContext` some more r=Veykril a=Veykril
Doesn't make the code much simpler yet.
bors r+
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
e.g. if you have a trait T and `impl T for S` for some struct, if you
goto definition on some function name inside the impl, it will go to the
definition of that function inside the `trait T` block, rather than the
current behaviour of not going anywhere at all.
9148: minor: Prevent renaming of aliases on usages r=Veykril a=Veykril
Otherwise trying to rename a usage that goes through an alias will still rename the aliased item instead, cc https://github.com/rust-analyzer/rust-analyzer/issues/5671
bors r+
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9130: Prefix/suffix parameter inlay hint hiding heuristic is more strict r=Veykril a=Veykril
Instead of just plainly checking prefix/suffix of the argument string to the parameter name we only check for prefixes and suffixes if they are split apart via an underscore meaning, with the argument `foo`, it will be hidden for the parameter name `foo_bar` but not for `foobar`.
bors r+
Closes https://github.com/rust-analyzer/rust-analyzer/issues/8878
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9127: internal: make variant fields inherit the enum's visibility in the ItemTree r=jonas-schievink a=jonas-schievink
No observable changes from what I can tell, but this is "more correct".
bors r+
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
9119: fix: some minor "extract type alias" fixes r=jonas-schievink a=jonas-schievink
It now correctly works inside traits, and no longer messes up the indentation of the original node
bors r+
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
9117: Allow expand-macro to be invoked anywhere inside a macro call r=Veykril a=Veykril
I don't really see a reason to only limit this to the name-ref of a macro.
bors r+
Closes#4606
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9108: Don't show extract into variable assist for unit expressions r=jonas-schievink a=brandondong
**Reproduction:**
```rust
fn main() {
let mut i = 3;
$0if i >= 0 {
i += 1;
} else {
i -= 1;
}$0
}
```
1. Select the snippet of code between the $0's.
2. The extract into variable assist shows up, pushing down the more useful extract into function assist.
3. The resulting output of selecting the extract into variable assist is valid but with the extracted variable having the unit type:
```rust
fn main() {
let mut i = 3;
let var_name = if i >= 0 {
i += 1;
} else {
i -= 1;
};
var_name
}
```
**Fix:**
- Don't show the extract into variable assist for unit expressions. I could not think of any scenarios where such a variable extraction would be desired.
Co-authored-by: Brandon <brandondong604@hotmail.com>
9112: Fix some bugs in `extract_struct_from_enum_variant` assist r=Veykril a=Veykril
bors r+
Fixes#9100Fixes#9099
Kind of fixes #9109, it now copies all the generics might be incorrect if the variant doesn't use all of them)
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9111: fix: make "extract type alias" place extracted type alias outside of impl r=jonas-schievink a=jonas-schievink
bors r+
Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
