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rust-analyzer/docs/user/generated_config.adoc
bors a0be16b0b2 Auto merge of #14040 - HKalbasi:mir, r=HKalbasi 
Beginning of MIR

This pull request introduces the initial implementation of MIR lowering and interpreting in Rust Analyzer.

The implementation of MIR has potential to bring several benefits:
- Executing a unit test without compiling it: This is my main goal. It can be useful for quickly testing code changes and print-debugging unit tests without the need for a full compilation (ideally in almost zero time, similar to languages like python and js). There is a probability that it goes nowhere, it might become slower than rustc, or it might need some unreasonable amount of memory, or we may fail to support a common pattern/function that make it unusable for most of the codes.
- Constant evaluation: MIR allows for easier and more correct constant evaluation, on par with rustc. If r-a wants to fully support the type system, it needs full const eval, which means arbitrary code execution, which needs MIR or something similar.
- Supporting more diagnostics: MIR can be used to detect errors, most famously borrow checker and lifetime errors,  but also mutability errors and uninitialized variables, which can be difficult/impossible to detect in HIR.
- Lowering closures: With MIR we can find out closure capture modes, which is useful in detecting if a closure implements the `FnMut` or `Fn` traits, and calculating its size and data layout.

But the current PR implements no diagnostics and doesn't support closures. About const eval, I removed the old const eval code and it now uses the mir interpreter. Everything that is supported in stable rustc is either implemented or is super easy to implement. About interpreting unit tests, I added an experimental config, disabled by default, that shows a `pass` or `fail` on hover of unit tests (ideally it should be a button similar to `Run test` button, but I didn't figured out how to add them). Currently, no real world test works, due to missing features including closures, heap allocation, `dyn Trait` and ... so at this point it is only useful for me selecting what to implement next.

The implementation of MIR is based on the design of rustc, the data structures are almost copy paste (so it should be easy to migrate it to a possible future stable-mir), but the lowering and interpreting code is from me.
2023-02-28 09:12:19 +00:00

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[[rust-analyzer.assist.emitMustUse]]rust-analyzer.assist.emitMustUse (default: `false`)::
+
--
Whether to insert #[must_use] when generating `as_` methods
for enum variants.
--
[[rust-analyzer.assist.expressionFillDefault]]rust-analyzer.assist.expressionFillDefault (default: `"todo"`)::
+
--
Placeholder expression to use for missing expressions in assists.
--
[[rust-analyzer.cachePriming.enable]]rust-analyzer.cachePriming.enable (default: `true`)::
+
--
Warm up caches on project load.
--
[[rust-analyzer.cachePriming.numThreads]]rust-analyzer.cachePriming.numThreads (default: `0`)::
+
--
How many worker threads to handle priming caches. The default `0` means to pick automatically.
--
[[rust-analyzer.cargo.autoreload]]rust-analyzer.cargo.autoreload (default: `true`)::
+
--
Automatically refresh project info via `cargo metadata` on
`Cargo.toml` or `.cargo/config.toml` changes.
--
[[rust-analyzer.cargo.buildScripts.enable]]rust-analyzer.cargo.buildScripts.enable (default: `true`)::
+
--
Run build scripts (`build.rs`) for more precise code analysis.
--
[[rust-analyzer.cargo.buildScripts.invocationLocation]]rust-analyzer.cargo.buildScripts.invocationLocation (default: `"workspace"`)::
+
--
Specifies the working directory for running build scripts.
- "workspace": run build scripts for a workspace in the workspace's root directory.
This is incompatible with `#rust-analyzer.cargo.buildScripts.invocationStrategy#` set to `once`.
- "root": run build scripts in the project's root directory.
This config only has an effect when `#rust-analyzer.cargo.buildScripts.overrideCommand#`
is set.
--
[[rust-analyzer.cargo.buildScripts.invocationStrategy]]rust-analyzer.cargo.buildScripts.invocationStrategy (default: `"per_workspace"`)::
+
--
Specifies the invocation strategy to use when running the build scripts command.
If `per_workspace` is set, the command will be executed for each workspace.
If `once` is set, the command will be executed once.
This config only has an effect when `#rust-analyzer.cargo.buildScripts.overrideCommand#`
is set.
--
[[rust-analyzer.cargo.buildScripts.overrideCommand]]rust-analyzer.cargo.buildScripts.overrideCommand (default: `null`)::
+
--
Override the command rust-analyzer uses to run build scripts and
build procedural macros. The command is required to output json
and should therefore include `--message-format=json` or a similar
option.
By default, a cargo invocation will be constructed for the configured
targets and features, with the following base command line:
```bash
cargo check --quiet --workspace --message-format=json --all-targets
```
.
--
[[rust-analyzer.cargo.buildScripts.useRustcWrapper]]rust-analyzer.cargo.buildScripts.useRustcWrapper (default: `true`)::
+
--
Use `RUSTC_WRAPPER=rust-analyzer` when running build scripts to
avoid checking unnecessary things.
--
[[rust-analyzer.cargo.extraEnv]]rust-analyzer.cargo.extraEnv (default: `{}`)::
+
--
Extra environment variables that will be set when running cargo, rustc
or other commands within the workspace. Useful for setting RUSTFLAGS.
--
[[rust-analyzer.cargo.features]]rust-analyzer.cargo.features (default: `[]`)::
+
--
List of features to activate.
Set this to `"all"` to pass `--all-features` to cargo.
--
[[rust-analyzer.cargo.noDefaultFeatures]]rust-analyzer.cargo.noDefaultFeatures (default: `false`)::
+
--
Whether to pass `--no-default-features` to cargo.
--
[[rust-analyzer.cargo.sysroot]]rust-analyzer.cargo.sysroot (default: `"discover"`)::
+
--
Relative path to the sysroot, or "discover" to try to automatically find it via
"rustc --print sysroot".
Unsetting this disables sysroot loading.
This option does not take effect until rust-analyzer is restarted.
--
[[rust-analyzer.cargo.sysrootSrc]]rust-analyzer.cargo.sysrootSrc (default: `null`)::
+
--
Relative path to the sysroot library sources. If left unset, this will default to
`{cargo.sysroot}/lib/rustlib/src/rust/library`.
This option does not take effect until rust-analyzer is restarted.
--
[[rust-analyzer.cargo.target]]rust-analyzer.cargo.target (default: `null`)::
+
--
Compilation target override (target triple).
--
[[rust-analyzer.cargo.unsetTest]]rust-analyzer.cargo.unsetTest (default: `["core"]`)::
+
--
Unsets `#[cfg(test)]` for the specified crates.
--
[[rust-analyzer.checkOnSave]]rust-analyzer.checkOnSave (default: `true`)::
+
--
Run the check command for diagnostics on save.
--
[[rust-analyzer.check.allTargets]]rust-analyzer.check.allTargets (default: `true`)::
+
--
Check all targets and tests (`--all-targets`).
--
[[rust-analyzer.check.command]]rust-analyzer.check.command (default: `"check"`)::
+
--
Cargo command to use for `cargo check`.
--
[[rust-analyzer.check.extraArgs]]rust-analyzer.check.extraArgs (default: `[]`)::
+
--
Extra arguments for `cargo check`.
--
[[rust-analyzer.check.extraEnv]]rust-analyzer.check.extraEnv (default: `{}`)::
+
--
Extra environment variables that will be set when running `cargo check`.
Extends `#rust-analyzer.cargo.extraEnv#`.
--
[[rust-analyzer.check.features]]rust-analyzer.check.features (default: `null`)::
+
--
List of features to activate. Defaults to
`#rust-analyzer.cargo.features#`.
Set to `"all"` to pass `--all-features` to Cargo.
--
[[rust-analyzer.check.invocationLocation]]rust-analyzer.check.invocationLocation (default: `"workspace"`)::
+
--
Specifies the working directory for running checks.
- "workspace": run checks for workspaces in the corresponding workspaces' root directories.
This falls back to "root" if `#rust-analyzer.cargo.checkOnSave.invocationStrategy#` is set to `once`.
- "root": run checks in the project's root directory.
This config only has an effect when `#rust-analyzer.cargo.buildScripts.overrideCommand#`
is set.
--
[[rust-analyzer.check.invocationStrategy]]rust-analyzer.check.invocationStrategy (default: `"per_workspace"`)::
+
--
Specifies the invocation strategy to use when running the checkOnSave command.
If `per_workspace` is set, the command will be executed for each workspace.
If `once` is set, the command will be executed once.
This config only has an effect when `#rust-analyzer.cargo.buildScripts.overrideCommand#`
is set.
--
[[rust-analyzer.check.noDefaultFeatures]]rust-analyzer.check.noDefaultFeatures (default: `null`)::
+
--
Whether to pass `--no-default-features` to Cargo. Defaults to
`#rust-analyzer.cargo.noDefaultFeatures#`.
--
[[rust-analyzer.check.overrideCommand]]rust-analyzer.check.overrideCommand (default: `null`)::
+
--
Override the command rust-analyzer uses instead of `cargo check` for
diagnostics on save. The command is required to output json and
should therefore include `--message-format=json` or a similar option
(if your client supports the `colorDiagnosticOutput` experimental
capability, you can use `--message-format=json-diagnostic-rendered-ansi`).
If you're changing this because you're using some tool wrapping
Cargo, you might also want to change
`#rust-analyzer.cargo.buildScripts.overrideCommand#`.
If there are multiple linked projects, this command is invoked for
each of them, with the working directory being the project root
(i.e., the folder containing the `Cargo.toml`).
An example command would be:
```bash
cargo check --workspace --message-format=json --all-targets
```
.
--
[[rust-analyzer.check.targets]]rust-analyzer.check.targets (default: `null`)::
+
--
Check for specific targets. Defaults to `#rust-analyzer.cargo.target#` if empty.
Can be a single target, e.g. `"x86_64-unknown-linux-gnu"` or a list of targets, e.g.
`["aarch64-apple-darwin", "x86_64-apple-darwin"]`.
Aliased as `"checkOnSave.targets"`.
--
[[rust-analyzer.completion.autoimport.enable]]rust-analyzer.completion.autoimport.enable (default: `true`)::
+
--
Toggles the additional completions that automatically add imports when completed.
Note that your client must specify the `additionalTextEdits` LSP client capability to truly have this feature enabled.
--
[[rust-analyzer.completion.autoself.enable]]rust-analyzer.completion.autoself.enable (default: `true`)::
+
--
Toggles the additional completions that automatically show method calls and field accesses
with `self` prefixed to them when inside a method.
--
[[rust-analyzer.completion.callable.snippets]]rust-analyzer.completion.callable.snippets (default: `"fill_arguments"`)::
+
--
Whether to add parenthesis and argument snippets when completing function.
--
[[rust-analyzer.completion.limit]]rust-analyzer.completion.limit (default: `null`)::
+
--
Maximum number of completions to return. If `None`, the limit is infinite.
--
[[rust-analyzer.completion.postfix.enable]]rust-analyzer.completion.postfix.enable (default: `true`)::
+
--
Whether to show postfix snippets like `dbg`, `if`, `not`, etc.
--
[[rust-analyzer.completion.privateEditable.enable]]rust-analyzer.completion.privateEditable.enable (default: `false`)::
+
--
Enables completions of private items and fields that are defined in the current workspace even if they are not visible at the current position.
--
[[rust-analyzer.completion.snippets.custom]]rust-analyzer.completion.snippets.custom::
+
--
Default:
----
{
"Arc::new": {
"postfix": "arc",
"body": "Arc::new(${receiver})",
"requires": "std::sync::Arc",
"description": "Put the expression into an `Arc`",
"scope": "expr"
},
"Rc::new": {
"postfix": "rc",
"body": "Rc::new(${receiver})",
"requires": "std::rc::Rc",
"description": "Put the expression into an `Rc`",
"scope": "expr"
},
"Box::pin": {
"postfix": "pinbox",
"body": "Box::pin(${receiver})",
"requires": "std::boxed::Box",
"description": "Put the expression into a pinned `Box`",
"scope": "expr"
},
"Ok": {
"postfix": "ok",
"body": "Ok(${receiver})",
"description": "Wrap the expression in a `Result::Ok`",
"scope": "expr"
},
"Err": {
"postfix": "err",
"body": "Err(${receiver})",
"description": "Wrap the expression in a `Result::Err`",
"scope": "expr"
},
"Some": {
"postfix": "some",
"body": "Some(${receiver})",
"description": "Wrap the expression in an `Option::Some`",
"scope": "expr"
}
}
----
Custom completion snippets.
--
[[rust-analyzer.diagnostics.disabled]]rust-analyzer.diagnostics.disabled (default: `[]`)::
+
--
List of rust-analyzer diagnostics to disable.
--
[[rust-analyzer.diagnostics.enable]]rust-analyzer.diagnostics.enable (default: `true`)::
+
--
Whether to show native rust-analyzer diagnostics.
--
[[rust-analyzer.diagnostics.experimental.enable]]rust-analyzer.diagnostics.experimental.enable (default: `false`)::
+
--
Whether to show experimental rust-analyzer diagnostics that might
have more false positives than usual.
--
[[rust-analyzer.diagnostics.remapPrefix]]rust-analyzer.diagnostics.remapPrefix (default: `{}`)::
+
--
Map of prefixes to be substituted when parsing diagnostic file paths.
This should be the reverse mapping of what is passed to `rustc` as `--remap-path-prefix`.
--
[[rust-analyzer.diagnostics.warningsAsHint]]rust-analyzer.diagnostics.warningsAsHint (default: `[]`)::
+
--
List of warnings that should be displayed with hint severity.
The warnings will be indicated by faded text or three dots in code
and will not show up in the `Problems Panel`.
--
[[rust-analyzer.diagnostics.warningsAsInfo]]rust-analyzer.diagnostics.warningsAsInfo (default: `[]`)::
+
--
List of warnings that should be displayed with info severity.
The warnings will be indicated by a blue squiggly underline in code
and a blue icon in the `Problems Panel`.
--
[[rust-analyzer.files.excludeDirs]]rust-analyzer.files.excludeDirs (default: `[]`)::
+
--
These directories will be ignored by rust-analyzer. They are
relative to the workspace root, and globs are not supported. You may
also need to add the folders to Code's `files.watcherExclude`.
--
[[rust-analyzer.files.watcher]]rust-analyzer.files.watcher (default: `"client"`)::
+
--
Controls file watching implementation.
--
[[rust-analyzer.highlightRelated.breakPoints.enable]]rust-analyzer.highlightRelated.breakPoints.enable (default: `true`)::
+
--
Enables highlighting of related references while the cursor is on `break`, `loop`, `while`, or `for` keywords.
--
[[rust-analyzer.highlightRelated.exitPoints.enable]]rust-analyzer.highlightRelated.exitPoints.enable (default: `true`)::
+
--
Enables highlighting of all exit points while the cursor is on any `return`, `?`, `fn`, or return type arrow (`->`).
--
[[rust-analyzer.highlightRelated.references.enable]]rust-analyzer.highlightRelated.references.enable (default: `true`)::
+
--
Enables highlighting of related references while the cursor is on any identifier.
--
[[rust-analyzer.highlightRelated.yieldPoints.enable]]rust-analyzer.highlightRelated.yieldPoints.enable (default: `true`)::
+
--
Enables highlighting of all break points for a loop or block context while the cursor is on any `async` or `await` keywords.
--
[[rust-analyzer.hover.actions.debug.enable]]rust-analyzer.hover.actions.debug.enable (default: `true`)::
+
--
Whether to show `Debug` action. Only applies when
`#rust-analyzer.hover.actions.enable#` is set.
--
[[rust-analyzer.hover.actions.enable]]rust-analyzer.hover.actions.enable (default: `true`)::
+
--
Whether to show HoverActions in Rust files.
--
[[rust-analyzer.hover.actions.gotoTypeDef.enable]]rust-analyzer.hover.actions.gotoTypeDef.enable (default: `true`)::
+
--
Whether to show `Go to Type Definition` action. Only applies when
`#rust-analyzer.hover.actions.enable#` is set.
--
[[rust-analyzer.hover.actions.implementations.enable]]rust-analyzer.hover.actions.implementations.enable (default: `true`)::
+
--
Whether to show `Implementations` action. Only applies when
`#rust-analyzer.hover.actions.enable#` is set.
--
[[rust-analyzer.hover.actions.references.enable]]rust-analyzer.hover.actions.references.enable (default: `false`)::
+
--
Whether to show `References` action. Only applies when
`#rust-analyzer.hover.actions.enable#` is set.
--
[[rust-analyzer.hover.actions.run.enable]]rust-analyzer.hover.actions.run.enable (default: `true`)::
+
--
Whether to show `Run` action. Only applies when
`#rust-analyzer.hover.actions.enable#` is set.
--
[[rust-analyzer.hover.documentation.enable]]rust-analyzer.hover.documentation.enable (default: `true`)::
+
--
Whether to show documentation on hover.
--
[[rust-analyzer.hover.documentation.keywords.enable]]rust-analyzer.hover.documentation.keywords.enable (default: `true`)::
+
--
Whether to show keyword hover popups. Only applies when
`#rust-analyzer.hover.documentation.enable#` is set.
--
[[rust-analyzer.hover.links.enable]]rust-analyzer.hover.links.enable (default: `true`)::
+
--
Use markdown syntax for links in hover.
--
[[rust-analyzer.imports.granularity.enforce]]rust-analyzer.imports.granularity.enforce (default: `false`)::
+
--
Whether to enforce the import granularity setting for all files. If set to false rust-analyzer will try to keep import styles consistent per file.
--
[[rust-analyzer.imports.granularity.group]]rust-analyzer.imports.granularity.group (default: `"crate"`)::
+
--
How imports should be grouped into use statements.
--
[[rust-analyzer.imports.group.enable]]rust-analyzer.imports.group.enable (default: `true`)::
+
--
Group inserted imports by the https://rust-analyzer.github.io/manual.html#auto-import[following order]. Groups are separated by newlines.
--
[[rust-analyzer.imports.merge.glob]]rust-analyzer.imports.merge.glob (default: `true`)::
+
--
Whether to allow import insertion to merge new imports into single path glob imports like `use std::fmt::*;`.
--
[[rust-analyzer.imports.prefer.no.std]]rust-analyzer.imports.prefer.no.std (default: `false`)::
+
--
Prefer to unconditionally use imports of the core and alloc crate, over the std crate.
--
[[rust-analyzer.imports.prefix]]rust-analyzer.imports.prefix (default: `"plain"`)::
+
--
The path structure for newly inserted paths to use.
--
[[rust-analyzer.inlayHints.bindingModeHints.enable]]rust-analyzer.inlayHints.bindingModeHints.enable (default: `false`)::
+
--
Whether to show inlay type hints for binding modes.
--
[[rust-analyzer.inlayHints.chainingHints.enable]]rust-analyzer.inlayHints.chainingHints.enable (default: `true`)::
+
--
Whether to show inlay type hints for method chains.
--
[[rust-analyzer.inlayHints.closingBraceHints.enable]]rust-analyzer.inlayHints.closingBraceHints.enable (default: `true`)::
+
--
Whether to show inlay hints after a closing `}` to indicate what item it belongs to.
--
[[rust-analyzer.inlayHints.closingBraceHints.minLines]]rust-analyzer.inlayHints.closingBraceHints.minLines (default: `25`)::
+
--
Minimum number of lines required before the `}` until the hint is shown (set to 0 or 1
to always show them).
--
[[rust-analyzer.inlayHints.closureReturnTypeHints.enable]]rust-analyzer.inlayHints.closureReturnTypeHints.enable (default: `"never"`)::
+
--
Whether to show inlay type hints for return types of closures.
--
[[rust-analyzer.inlayHints.discriminantHints.enable]]rust-analyzer.inlayHints.discriminantHints.enable (default: `"never"`)::
+
--
Whether to show enum variant discriminant hints.
--
[[rust-analyzer.inlayHints.expressionAdjustmentHints.enable]]rust-analyzer.inlayHints.expressionAdjustmentHints.enable (default: `"never"`)::
+
--
Whether to show inlay hints for type adjustments.
--
[[rust-analyzer.inlayHints.expressionAdjustmentHints.hideOutsideUnsafe]]rust-analyzer.inlayHints.expressionAdjustmentHints.hideOutsideUnsafe (default: `false`)::
+
--
Whether to hide inlay hints for type adjustments outside of `unsafe` blocks.
--
[[rust-analyzer.inlayHints.expressionAdjustmentHints.mode]]rust-analyzer.inlayHints.expressionAdjustmentHints.mode (default: `"prefix"`)::
+
--
Whether to show inlay hints as postfix ops (`.*` instead of `*`, etc).
--
[[rust-analyzer.inlayHints.lifetimeElisionHints.enable]]rust-analyzer.inlayHints.lifetimeElisionHints.enable (default: `"never"`)::
+
--
Whether to show inlay type hints for elided lifetimes in function signatures.
--
[[rust-analyzer.inlayHints.lifetimeElisionHints.useParameterNames]]rust-analyzer.inlayHints.lifetimeElisionHints.useParameterNames (default: `false`)::
+
--
Whether to prefer using parameter names as the name for elided lifetime hints if possible.
--
[[rust-analyzer.inlayHints.maxLength]]rust-analyzer.inlayHints.maxLength (default: `25`)::
+
--
Maximum length for inlay hints. Set to null to have an unlimited length.
--
[[rust-analyzer.inlayHints.parameterHints.enable]]rust-analyzer.inlayHints.parameterHints.enable (default: `true`)::
+
--
Whether to show function parameter name inlay hints at the call
site.
--
[[rust-analyzer.inlayHints.reborrowHints.enable]]rust-analyzer.inlayHints.reborrowHints.enable (default: `"never"`)::
+
--
Whether to show inlay hints for compiler inserted reborrows.
This setting is deprecated in favor of #rust-analyzer.inlayHints.expressionAdjustmentHints.enable#.
--
[[rust-analyzer.inlayHints.renderColons]]rust-analyzer.inlayHints.renderColons (default: `true`)::
+
--
Whether to render leading colons for type hints, and trailing colons for parameter hints.
--
[[rust-analyzer.inlayHints.typeHints.enable]]rust-analyzer.inlayHints.typeHints.enable (default: `true`)::
+
--
Whether to show inlay type hints for variables.
--
[[rust-analyzer.inlayHints.typeHints.hideClosureInitialization]]rust-analyzer.inlayHints.typeHints.hideClosureInitialization (default: `false`)::
+
--
Whether to hide inlay type hints for `let` statements that initialize to a closure.
Only applies to closures with blocks, same as `#rust-analyzer.inlayHints.closureReturnTypeHints.enable#`.
--
[[rust-analyzer.inlayHints.typeHints.hideNamedConstructor]]rust-analyzer.inlayHints.typeHints.hideNamedConstructor (default: `false`)::
+
--
Whether to hide inlay type hints for constructors.
--
[[rust-analyzer.interpret.tests]]rust-analyzer.interpret.tests (default: `false`)::
+
--
Enables the experimental support for interpreting tests.
--
[[rust-analyzer.joinLines.joinAssignments]]rust-analyzer.joinLines.joinAssignments (default: `true`)::
+
--
Join lines merges consecutive declaration and initialization of an assignment.
--
[[rust-analyzer.joinLines.joinElseIf]]rust-analyzer.joinLines.joinElseIf (default: `true`)::
+
--
Join lines inserts else between consecutive ifs.
--
[[rust-analyzer.joinLines.removeTrailingComma]]rust-analyzer.joinLines.removeTrailingComma (default: `true`)::
+
--
Join lines removes trailing commas.
--
[[rust-analyzer.joinLines.unwrapTrivialBlock]]rust-analyzer.joinLines.unwrapTrivialBlock (default: `true`)::
+
--
Join lines unwraps trivial blocks.
--
[[rust-analyzer.lens.debug.enable]]rust-analyzer.lens.debug.enable (default: `true`)::
+
--
Whether to show `Debug` lens. Only applies when
`#rust-analyzer.lens.enable#` is set.
--
[[rust-analyzer.lens.enable]]rust-analyzer.lens.enable (default: `true`)::
+
--
Whether to show CodeLens in Rust files.
--
[[rust-analyzer.lens.forceCustomCommands]]rust-analyzer.lens.forceCustomCommands (default: `true`)::
+
--
Internal config: use custom client-side commands even when the
client doesn't set the corresponding capability.
--
[[rust-analyzer.lens.implementations.enable]]rust-analyzer.lens.implementations.enable (default: `true`)::
+
--
Whether to show `Implementations` lens. Only applies when
`#rust-analyzer.lens.enable#` is set.
--
[[rust-analyzer.lens.location]]rust-analyzer.lens.location (default: `"above_name"`)::
+
--
Where to render annotations.
--
[[rust-analyzer.lens.references.adt.enable]]rust-analyzer.lens.references.adt.enable (default: `false`)::
+
--
Whether to show `References` lens for Struct, Enum, and Union.
Only applies when `#rust-analyzer.lens.enable#` is set.
--
[[rust-analyzer.lens.references.enumVariant.enable]]rust-analyzer.lens.references.enumVariant.enable (default: `false`)::
+
--
Whether to show `References` lens for Enum Variants.
Only applies when `#rust-analyzer.lens.enable#` is set.
--
[[rust-analyzer.lens.references.method.enable]]rust-analyzer.lens.references.method.enable (default: `false`)::
+
--
Whether to show `Method References` lens. Only applies when
`#rust-analyzer.lens.enable#` is set.
--
[[rust-analyzer.lens.references.trait.enable]]rust-analyzer.lens.references.trait.enable (default: `false`)::
+
--
Whether to show `References` lens for Trait.
Only applies when `#rust-analyzer.lens.enable#` is set.
--
[[rust-analyzer.lens.run.enable]]rust-analyzer.lens.run.enable (default: `true`)::
+
--
Whether to show `Run` lens. Only applies when
`#rust-analyzer.lens.enable#` is set.
--
[[rust-analyzer.linkedProjects]]rust-analyzer.linkedProjects (default: `[]`)::
+
--
Disable project auto-discovery in favor of explicitly specified set
of projects.
Elements must be paths pointing to `Cargo.toml`,
`rust-project.json`, or JSON objects in `rust-project.json` format.
--
[[rust-analyzer.lru.capacity]]rust-analyzer.lru.capacity (default: `null`)::
+
--
Number of syntax trees rust-analyzer keeps in memory. Defaults to 128.
--
[[rust-analyzer.notifications.cargoTomlNotFound]]rust-analyzer.notifications.cargoTomlNotFound (default: `true`)::
+
--
Whether to show `can't find Cargo.toml` error message.
--
[[rust-analyzer.numThreads]]rust-analyzer.numThreads (default: `null`)::
+
--
How many worker threads in the main loop. The default `null` means to pick automatically.
--
[[rust-analyzer.procMacro.attributes.enable]]rust-analyzer.procMacro.attributes.enable (default: `true`)::
+
--
Expand attribute macros. Requires `#rust-analyzer.procMacro.enable#` to be set.
--
[[rust-analyzer.procMacro.enable]]rust-analyzer.procMacro.enable (default: `true`)::
+
--
Enable support for procedural macros, implies `#rust-analyzer.cargo.buildScripts.enable#`.
--
[[rust-analyzer.procMacro.ignored]]rust-analyzer.procMacro.ignored (default: `{}`)::
+
--
These proc-macros will be ignored when trying to expand them.
This config takes a map of crate names with the exported proc-macro names to ignore as values.
--
[[rust-analyzer.procMacro.server]]rust-analyzer.procMacro.server (default: `null`)::
+
--
Internal config, path to proc-macro server executable (typically,
this is rust-analyzer itself, but we override this in tests).
--
[[rust-analyzer.references.excludeImports]]rust-analyzer.references.excludeImports (default: `false`)::
+
--
Exclude imports from find-all-references.
--
[[rust-analyzer.runnables.command]]rust-analyzer.runnables.command (default: `null`)::
+
--
Command to be executed instead of 'cargo' for runnables.
--
[[rust-analyzer.runnables.extraArgs]]rust-analyzer.runnables.extraArgs (default: `[]`)::
+
--
Additional arguments to be passed to cargo for runnables such as
tests or binaries. For example, it may be `--release`.
--
[[rust-analyzer.rustc.source]]rust-analyzer.rustc.source (default: `null`)::
+
--
Path to the Cargo.toml of the rust compiler workspace, for usage in rustc_private
projects, or "discover" to try to automatically find it if the `rustc-dev` component
is installed.
Any project which uses rust-analyzer with the rustcPrivate
crates must set `[package.metadata.rust-analyzer] rustc_private=true` to use it.
This option does not take effect until rust-analyzer is restarted.
--
[[rust-analyzer.rustfmt.extraArgs]]rust-analyzer.rustfmt.extraArgs (default: `[]`)::
+
--
Additional arguments to `rustfmt`.
--
[[rust-analyzer.rustfmt.overrideCommand]]rust-analyzer.rustfmt.overrideCommand (default: `null`)::
+
--
Advanced option, fully override the command rust-analyzer uses for
formatting. This should be the equivalent of `rustfmt` here, and
not that of `cargo fmt`. The file contents will be passed on the
standard input and the formatted result will be read from the
standard output.
--
[[rust-analyzer.rustfmt.rangeFormatting.enable]]rust-analyzer.rustfmt.rangeFormatting.enable (default: `false`)::
+
--
Enables the use of rustfmt's unstable range formatting command for the
`textDocument/rangeFormatting` request. The rustfmt option is unstable and only
available on a nightly build.
--
[[rust-analyzer.semanticHighlighting.doc.comment.inject.enable]]rust-analyzer.semanticHighlighting.doc.comment.inject.enable (default: `true`)::
+
--
Inject additional highlighting into doc comments.
When enabled, rust-analyzer will highlight rust source in doc comments as well as intra
doc links.
--
[[rust-analyzer.semanticHighlighting.operator.enable]]rust-analyzer.semanticHighlighting.operator.enable (default: `true`)::
+
--
Use semantic tokens for operators.
When disabled, rust-analyzer will emit semantic tokens only for operator tokens when
they are tagged with modifiers.
--
[[rust-analyzer.semanticHighlighting.operator.specialization.enable]]rust-analyzer.semanticHighlighting.operator.specialization.enable (default: `false`)::
+
--
Use specialized semantic tokens for operators.
When enabled, rust-analyzer will emit special token types for operator tokens instead
of the generic `operator` token type.
--
[[rust-analyzer.semanticHighlighting.punctuation.enable]]rust-analyzer.semanticHighlighting.punctuation.enable (default: `false`)::
+
--
Use semantic tokens for punctuations.
When disabled, rust-analyzer will emit semantic tokens only for punctuation tokens when
they are tagged with modifiers or have a special role.
--
[[rust-analyzer.semanticHighlighting.punctuation.separate.macro.bang]]rust-analyzer.semanticHighlighting.punctuation.separate.macro.bang (default: `false`)::
+
--
When enabled, rust-analyzer will emit a punctuation semantic token for the `!` of macro
calls.
--
[[rust-analyzer.semanticHighlighting.punctuation.specialization.enable]]rust-analyzer.semanticHighlighting.punctuation.specialization.enable (default: `false`)::
+
--
Use specialized semantic tokens for punctuations.
When enabled, rust-analyzer will emit special token types for punctuation tokens instead
of the generic `punctuation` token type.
--
[[rust-analyzer.semanticHighlighting.strings.enable]]rust-analyzer.semanticHighlighting.strings.enable (default: `true`)::
+
--
Use semantic tokens for strings.
In some editors (e.g. vscode) semantic tokens override other highlighting grammars.
By disabling semantic tokens for strings, other grammars can be used to highlight
their contents.
--
[[rust-analyzer.signatureInfo.detail]]rust-analyzer.signatureInfo.detail (default: `"full"`)::
+
--
Show full signature of the callable. Only shows parameters if disabled.
--
[[rust-analyzer.signatureInfo.documentation.enable]]rust-analyzer.signatureInfo.documentation.enable (default: `true`)::
+
--
Show documentation.
--
[[rust-analyzer.typing.autoClosingAngleBrackets.enable]]rust-analyzer.typing.autoClosingAngleBrackets.enable (default: `false`)::
+
--
Whether to insert closing angle brackets when typing an opening angle bracket of a generic argument list.
--
[[rust-analyzer.workspace.symbol.search.kind]]rust-analyzer.workspace.symbol.search.kind (default: `"only_types"`)::
+
--
Workspace symbol search kind.
--
[[rust-analyzer.workspace.symbol.search.limit]]rust-analyzer.workspace.symbol.search.limit (default: `128`)::
+
--
Limits the number of items returned from a workspace symbol search (Defaults to 128).
Some clients like vs-code issue new searches on result filtering and don't require all results to be returned in the initial search.
Other clients requires all results upfront and might require a higher limit.
--
[[rust-analyzer.workspace.symbol.search.scope]]rust-analyzer.workspace.symbol.search.scope (default: `"workspace"`)::
+
--
Workspace symbol search scope.
--
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