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Changelog #230 
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‎generated_assists.adoc‎

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@@ -468,6 +468,39 @@ fn main() {
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```
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[discrete]
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=== `convert_from_to_tryfrom`
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**Source:** https://github.com/rust-lang/rust-analyzer/blob/master/crates/ide-assists/src/handlers/convert_from_to_tryfrom.rs#L10[convert_from_to_tryfrom.rs]
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Converts a From impl to a TryFrom impl, wrapping returns in `Ok`.
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.Before
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```rust
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impl ┃From<usize> for Thing {
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fn from(val: usize) -> Self {
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Thing {
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b: val.to_string(),
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a: val
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}
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}
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}
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```
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.After
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```rust
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impl TryFrom<usize> for Thing {
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type Error = ${0:()};
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fn try_from(val: usize) -> Result<Self, Self::Error> {
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Ok(Thing {
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b: val.to_string(),
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a: val
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})
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}
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}
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```
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[discrete]
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=== `convert_if_to_bool_then`
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**Source:** https://github.com/rust-lang/rust-analyzer/blob/master/crates/ide-assists/src/handlers/convert_bool_then.rs#L20[convert_bool_then.rs]
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```rust
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fn foo() -> Result<i32, ${0:_}> { Ok(42i32) }
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```
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[discrete]
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=== `wrap_unwrap_cfg_attr`
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**Source:** https://github.com/rust-lang/rust-analyzer/blob/master/crates/ide-assists/src/handlers/wrap_unwrap_cfg_attr.rs#L12[wrap_unwrap_cfg_attr.rs]
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Wraps an attribute to a cfg_attr attribute or unwraps a cfg_attr attribute to the inner attributes.
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.Before
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```rust
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#[derive┃(Debug)]
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struct S {
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field: i32
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}
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```
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.After
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```rust
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#[cfg_attr(┃, derive(Debug))]
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struct S {
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field: i32
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}
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```

‎generated_config.adoc‎

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@@ -88,10 +88,18 @@ or build-script sources change and are saved.
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Use `RUSTC_WRAPPER=rust-analyzer` when running build scripts to
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avoid checking unnecessary things.
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--
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[[rust-analyzer.cargo.cfgs]]rust-analyzer.cargo.cfgs (default: `{}`)::
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[[rust-analyzer.cargo.cfgs]]rust-analyzer.cargo.cfgs::
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+
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--
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Default:
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----
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{
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"debug_assertions": null,
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"miri": null
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}
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----
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List of cfg options to enable with the given values.
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--
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[[rust-analyzer.cargo.extraArgs]]rust-analyzer.cargo.extraArgs (default: `[]`)::
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Set to `true` to use a subdirectory of the existing target directory or
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set to a path relative to the workspace to use that path.
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--
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[[rust-analyzer.cargo.unsetTest]]rust-analyzer.cargo.unsetTest (default: `["core"]`)::
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+
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--
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Unsets the implicit `#[cfg(test)]` for the specified crates.
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--
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[[rust-analyzer.checkOnSave]]rust-analyzer.checkOnSave (default: `true`)::
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+
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--
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Default:
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----
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{
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"Arc::new": {
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"postfix": "arc",
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"body": "Arc::new(${receiver})",
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"requires": "std::sync::Arc",
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"description": "Put the expression into an `Arc`",
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"scope": "expr"
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},
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"Rc::new": {
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"postfix": "rc",
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"body": "Rc::new(${receiver})",
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"requires": "std::rc::Rc",
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"description": "Put the expression into an `Rc`",
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"scope": "expr"
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},
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"Box::pin": {
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"postfix": "pinbox",
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"body": "Box::pin(${receiver})",
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"requires": "std::boxed::Box",
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"description": "Put the expression into a pinned `Box`",
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"scope": "expr"
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},
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"Ok": {
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"postfix": "ok",
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"body": "Ok(${receiver})",
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"description": "Wrap the expression in a `Result::Ok`",
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"scope": "expr"
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},
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"Err": {
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"postfix": "err",
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"body": "Err(${receiver})",
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"description": "Wrap the expression in a `Result::Err`",
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"scope": "expr"
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},
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"Some": {
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"postfix": "some",
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"body": "Some(${receiver})",
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"description": "Wrap the expression in an `Option::Some`",
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"scope": "expr"
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}
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}
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"Arc::new": {
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"postfix": "arc",
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"body": "Arc::new(${receiver})",
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"requires": "std::sync::Arc",
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"description": "Put the expression into an `Arc`",
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"scope": "expr"
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},
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"Rc::new": {
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"postfix": "rc",
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"body": "Rc::new(${receiver})",
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"requires": "std::rc::Rc",
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"description": "Put the expression into an `Rc`",
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"scope": "expr"
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},
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"Box::pin": {
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"postfix": "pinbox",
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"body": "Box::pin(${receiver})",
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"requires": "std::boxed::Box",
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"description": "Put the expression into a pinned `Box`",
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"scope": "expr"
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},
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"Ok": {
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"postfix": "ok",
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"body": "Ok(${receiver})",
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"description": "Wrap the expression in a `Result::Ok`",
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"scope": "expr"
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},
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"Err": {
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"postfix": "err",
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"body": "Err(${receiver})",
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"description": "Wrap the expression in a `Result::Err`",
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"scope": "expr"
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},
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"Some": {
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"postfix": "some",
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"body": "Some(${receiver})",
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"description": "Wrap the expression in an `Option::Some`",
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"scope": "expr"
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}
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}
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----
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Custom completion snippets.
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of projects.
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Elements must be paths pointing to `Cargo.toml`,
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`rust-project.json`, or JSON objects in `rust-project.json` format.
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`rust-project.json`, `.rs` files (which will be treated as standalone files) or JSON
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objects in `rust-project.json` format.
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[[rust-analyzer.lru.capacity]]rust-analyzer.lru.capacity (default: `null`)::
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--
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Additional arguments to be passed to cargo for runnables such as
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tests or binaries. For example, it may be `--release`.
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--
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[[rust-analyzer.runnables.extraTestBinaryArgs]]rust-analyzer.runnables.extraTestBinaryArgs::
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+
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--
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Default:
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----
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[
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"--show-output"
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]
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----
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Additional arguments to be passed through Cargo to launched tests, benchmarks, or
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doc-tests.
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Unless the launched target uses a
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[custom test harness](https://doc.rust-lang.org/cargo/reference/cargo-targets.html#the-harness-field),
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they will end up being interpreted as options to
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[`rustc`’s built-in test harness (“libtest”)](https://doc.rust-lang.org/rustc/tests/index.html#cli-arguments).
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[[rust-analyzer.rustc.source]]rust-analyzer.rustc.source (default: `null`)::
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‎generated_diagnostic.adoc‎

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=== unused-variables
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**Source:** https://github.com/rust-lang/rust-analyzer/blob/master/crates/ide-diagnostics/src/handlers/unused_variables.rs#L11[unused_variables.rs]
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**Source:** https://github.com/rust-lang/rust-analyzer/blob/master/crates/ide-diagnostics/src/handlers/unused_variables.rs#L14[unused_variables.rs]
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This diagnostic is triggered when a local variable is not used.

‎thisweek/_posts/2024-04-22-changelog-230.adoc‎

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= Changelog #230
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:sectanchors:
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:experimental:
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:page-layout: post
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Commit: commit:47a901b9bf1f99b1ec5222d478684fc412d526a5[] +
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Release: release:2024-04-22[] (`v0.3.1932`)
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== New Features
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* pr:16813[] add wrap/unwrap `#[cfg_attr]` assist.
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* pr:17094[] add "Convert `From` to `TryFrom`" assist.
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* pr:17110[] add minimal `cargo-script` support.
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* pr:17118[] allow `.rs` files to be used linkedProjects.
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* pr:16057[] render matched declarative macro arm on hover.
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== Fixes
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* pr:17115[] (first contribution) try to generate more meaningful names in JSON converter.
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* pr:16877[] fix `impl Trait<Self>` causing stack overflows.
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* pr:17055[] replace just the variable name in the "Unused variable" quick fix.
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* pr:17093[] avoid some circular symlinks in VFS.
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* pr:17024[] handle escaped chars in doc comments.
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* pr:17074[] add `static` and `const` highlight token types.
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* pr:17105[] make test harness arguments configurable.
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== Internal Improvements
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* pr:17104[] (first contribution) bump actions in `metrics.yaml`.
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* pr:16639[] redesign `rust-analyzer::config`.
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* pr:17078[] improve diagnostics performance.
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* pr:16726[] remove `#[cfg(test)]` hacks.
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* pr:17108[] clean up `#[cfg]` and environment handling in `project-model`.
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* pr:16938[] handle `BeginPanic` in const eval.
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* pr:17119[] extract common fields out of `ProjectWorkspace` variants.
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* pr:17037[] improve `TokenSet` implementation and add reserved keywords.
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* pr:17072[] use `hir_fmt_args` everywhere in `hir_ty::display`.
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* pr:17070[] remove unnecessay `GlobalState::send_hint_refresh_query` field.
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* pr:17087[] fix a few `tracing` spans without `.entered()`.
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* pr:17083[] improve `ReferenceCategoryType`.
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* pr:16257[] teach Cargo about `#[cfg(rust_analyzer)]`.
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* pr:17025[] use `josh` for subtree syncs.
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* pr:17095[] add a `CONTRIBUTING.md`.

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