rust-analyzer · lnicola · Mar 22, 2021 · Mar 22, 2021
diff --git a/generated_assists.adoc b/generated_assists.adoc
@@ -331,7 +331,7 @@ fn qux(bar: Bar, baz: Baz) {}
 
 [discrete]
 === `extract_function`
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide_assists/src/handlers/extract_function.rs#L29[extract_function.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide_assists/src/handlers/extract_function.rs#L28[extract_function.rs]
 
 Extracts selected statements into new function.
 
@@ -840,6 +840,39 @@ impl<T: Clone> Ctx<T> {
 ```
 
 
+[discrete]
+=== `generate_is_empty_from_len`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide_assists/src/handlers/generate_is_empty_from_len.rs#L12[generate_is_empty_from_len.rs]
+
+Generates is_empty implementation from the len method.
+
+.Before
+```rust
+struct MyStruct { data: Vec<String> }
+
+impl MyStruct {
+    p┃ub fn len(&self) -> usize {
+        self.data.len()
+    }
+}
+```
+
+.After
+```rust
+struct MyStruct { data: Vec<String> }
+
+impl MyStruct {
+    pub fn len(&self) -> usize {
+        self.data.len()
+    }
+
+    pub fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+}
+```
+
+
 [discrete]
 === `generate_new`
 **Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide_assists/src/handlers/generate_new.rs#L11[generate_new.rs]
@@ -1136,7 +1169,7 @@ fn handle(action: Action) {
 
 [discrete]
 === `move_bounds_to_where_clause`
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide_assists/src/handlers/move_bounds.rs#L10[move_bounds.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide_assists/src/handlers/move_bounds.rs#L8[move_bounds.rs]
 
 Moves inline type bounds to a where clause.
 
@@ -1242,7 +1275,7 @@ fn main() {
 
 [discrete]
 === `qualify_path`
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide_assists/src/handlers/qualify_path.rs#L22[qualify_path.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide_assists/src/handlers/qualify_path.rs#L21[qualify_path.rs]
 
 If the name is unresolved, provides all possible qualified paths for it.
 

diff --git a/generated_config.adoc b/generated_config.adoc
@@ -276,7 +276,7 @@ Number of syntax trees rust-analyzer keeps in memory. Defaults to 128.
 --
 Whether to show `can't find Cargo.toml` error message.
 --
-[[rust-analyzer.procMacro.enable]]rust-analyzer.procMacro.enable (default: `false`)::
+[[rust-analyzer.procMacro.enable]]rust-analyzer.procMacro.enable (default: `true`)::
 +
 --
 Enable support for procedural macros, implies `#rust-analyzer.cargo.runBuildScripts#`.

diff --git a/generated_diagnostic.adoc b/generated_diagnostic.adoc
@@ -115,7 +115,7 @@ This diagnostic is triggered if rust-analyzer is unable to discover imported mod
 === unresolved-macro-call
 **Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_def/src/diagnostics.rs#L98[diagnostics.rs]
 
-This diagnostic is triggered if rust-analyzer is unable to resolove path to a
+This diagnostic is triggered if rust-analyzer is unable to resolve the path to a
 macro in a macro invocation.
 
 

diff --git a/generated_features.adoc b/generated_features.adoc
@@ -1,6 +1,6 @@
 //Generated file, do not edit by hand, see `xtask/src/codegen`
 === Annotations
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/annotations.rs#L17[annotations.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/annotations.rs#L18[annotations.rs]
 
 Provides user with annotations above items for looking up references or impl blocks
 and running/debugging binaries.
@@ -91,7 +91,7 @@ This is a standard LSP feature and not a protocol extension.
 
 
 === File Structure
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/file_structure.rs#L18[file_structure.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/file_structure.rs#L25[file_structure.rs]
 
 Provides a tree of the symbols defined in the file. Can be used to
 
@@ -137,7 +137,7 @@ The following postfix snippets are available:
 
 
 === Go to Definition
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/goto_definition.rs#L16[goto_definition.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/goto_definition.rs#L19[goto_definition.rs]
 
 Navigates to the definition of an identifier.
 
@@ -149,7 +149,7 @@ Navigates to the definition of an identifier.
 
 
 === Go to Implementation
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/goto_implementation.rs#L7[goto_implementation.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/goto_implementation.rs#L10[goto_implementation.rs]
 
 Navigates to the impl block of structs, enums or traits. Also implemented as a code lens.
 
@@ -215,7 +215,7 @@ Join selected lines into one, smartly fixing up whitespace, trailing commas, and
 
 
 === Magic Completions
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide_completion/src/lib.rs#L31[lib.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide_completion/src/lib.rs#L34[lib.rs]
 
 In addition to usual reference completion, rust-analyzer provides some ✨magic✨
 completions as well:
@@ -334,7 +334,7 @@ Add the following to `settings.json`:
 
 
 === Parent Module
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/parent_module.rs#L11[parent_module.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/parent_module.rs#L12[parent_module.rs]
 
 Navigates to the parent module of the current module.
 
@@ -346,7 +346,7 @@ Navigates to the parent module of the current module.
 
 
 === Related Tests
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/runnables.rs#L115[runnables.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/runnables.rs#L131[runnables.rs]
 
 Provides a sneak peek of all tests where the current item is used.
 
@@ -374,7 +374,7 @@ Renames the item below the cursor and all of its references
 
 
 === Run
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/runnables.rs#L92[runnables.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide/src/runnables.rs#L94[runnables.rs]
 
 Shows a popup suggesting to run a test/benchmark/binary **at the current cursor
 location**. Super useful for repeatedly running just a single test. Do bind this
@@ -501,7 +501,7 @@ be parsed as a valid structural search and replace rule.
 
 
 === Workspace Symbol
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide_db/src/symbol_index.rs#L142[symbol_index.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ide_db/src/symbol_index.rs#L148[symbol_index.rs]
 
 Uses fuzzy-search to find types, modules and functions by name across your
 project and dependencies. This is **the** most useful feature, which improves code

diff --git a/manual.adoc b/manual.adoc
@@ -384,11 +384,9 @@ If the LSP binary is not available, GNOME Builder can install it when opening a
 
 === Eclipse IDE
 
-Prerequisites: You have installed the <<rust-analyzer-language-server-binary,`rust-analyzer` binary>>.
-
 Support for Rust development in the Eclipse IDE is provided by link:https://github.com/eclipse/corrosion[Eclipse Corrosion].
-While it currently uses RLS as default, you can successfully configure it so the IDE will use `rust-analyzer` instead.
-To do so, with an Eclipse IDE where Corrosion is installed, just go to __Window > Preferences > Rust__ and edit the __Path to Rust Language Server__ entry to reference the path to `rust-analyzer`.
+If available in PATH or in some standard location, `rust-analyzer` is detected and powers editing of Rust files without further configuration.
+If `rust-analyzer` is not detected, Corrosion will prompt you for configuration of your Rust toolchain and language server with a link to the __Window > Preferences > Rust__ preference page; from here a button allows to download and configure `rust-analyzer`, but you can also reference another installation.
 You'll need to close and reopen all .rs and Cargo files, or to restart the IDE, for this change to take effect.
 
 == Configuration

diff --git a/thisweek/_posts/2021-03-22-changelog-69.adoc b/thisweek/_posts/2021-03-22-changelog-69.adoc
@@ -0,0 +1,113 @@
+= Changelog #69
+:sectanchors:
+:page-layout: post
+
+Commit: commit:858ad554374a8b1ad67692558a0878391abfdd86[] +
+Release: release:2021-03-22[]
+
+== Sponsors
+
+**Become a sponsor:** On https://opencollective.com/rust-analyzer/[OpenCollective] or
+https://github.com/sponsors/rust-analyzer[GitHub Sponsors].
+
+== New Features
+
+* pr:8000[] add HIR formatter infra and use it for hover text:
++
+image::https://user-images.githubusercontent.com/308347/111968849-49d7b180-8b02-11eb-8f0d-4b7bc38d5247.png[]
+
+* pr:8032[] enable proc macros by default (use `rust-analyzer.procMacro.enable` to disable them).
+* pr:7966[] add diagnostic for files missing from the module tree.
+* pr:7975[] include regions in file structure:
++
+image::https://user-images.githubusercontent.com/308347/111967940-4bed4080-8b01-11eb-940a-fc8f81d5673b.gif[]
+
+* pr:8021[] enable reference searching for built-in types:
++
+image::https://user-images.githubusercontent.com/3757771/111132711-f69db600-8579-11eb-8c90-22fd6862d11f.png[]
+
+* pr:8020[] power up "Go to implementation":
++
+image::https://user-images.githubusercontent.com/3757771/111144403-52bb0700-8587-11eb-9205-7a2a5b8b75a3.png[]
+
+* pr:7992[], pr:8036[] improve completions and completion sorting:
++
+image::https://user-images.githubusercontent.com/22216761/111018680-0e551e80-836f-11eb-94b1-c88336ecbc6e.png[]
++
+image::https://user-images.githubusercontent.com/22216761/111189395-45941d00-8573-11eb-871b-09186b35cbb9.png[]
+
+* pr:8037[], pr:8040[] add "Generate `is_empty` method from `len` method" assist.
+* pr:7900[] show function parameters in completion detail.
+* pr:8060[] improve "Move bounds" assist.
+* pr:8071[], pr:8086[] highlight intra-doc links in doc comments:
++
+image::https://user-images.githubusercontent.com/308347/111969661-27926380-8b03-11eb-8e78-70dc95e137fd.png[]
+
+* pr:8124[] add lifetime completion:
++
+image::https://user-images.githubusercontent.com/3757771/111886437-c9b02f80-89cd-11eb-9bee-340f1536b0de.gif[]
+
+* pr:8127[] add label completion:
++
+image::https://user-images.githubusercontent.com/3757771/111900839-07946e80-8a35-11eb-90f6-a47943e7501d.gif[]
+
+* pr:8131[] add smart case lookup into flyimport completion:
++
+image::https://user-images.githubusercontent.com/308347/111970038-8821a080-8b03-11eb-9bca-b4e06aac565b.png[]
+
++
+image::https://user-images.githubusercontent.com/308347/111970065-8e178180-8b03-11eb-8a33-8aa245401e8a.png[]
+
+== Fixes
+
+* pr:8025[] fix resolution of incomplete fields.
+* pr:8015[] make runnable detection more resilient to out-of-tree modules.
+* pr:7970[] fix incorrect diagnostics for failing built in macros.
+* pr:8044[] fix macro expansion for statements without semicolon.
+* pr:8048[] fix missing unresolved macro diagnostic in function body.
+* pr:8066[] handle `#[cfg]` on call arguments.
+* pr:8068[] handle `#[cfg]` on function parameters.
+* pr:8067[] check whether cursor is on and not between intra-doc links in `goto_definition`.
+* pr:8073[] improve diagnostic when including nonexistent file.
+* pr:8075[] fix `use crate as <name>;` imports.
+* pr:8078[] support `#[cfg]` on all associated items.
+* pr:8082[] properly handle inner recursive `macro_rules!`.
+* pr:8088[] fix "Go to definition" and highlighting for function-like proc macros.
+* pr:8089[] update info about Eclipse Corrosion.
+* pr:8094[] fix infinite recursion when computing diagnostics for inner items.
+* pr:8083[] track source file IDs in source mapping of `Attrs`.
+* pr:8108[] fix handling of `#![cfg]` in outline module files.
+* pr:8122[] make bare underscore token an `Ident` rather than `Punct` in proc-macro.
+* pr:8123[] do not display unqualified associated item completions.
+* pr:8128[] expand legacy-scoped macro during collection.
+* pr:8133[] fix `salsa` panic.
+* pr:8134[] (first contribution) fix module resolution in `include!`ed files.
+* pr:8137[] fix box pattern inference panic.
+
+
+== Internal Improvements
+
+* pr:7498[] switch to a mutable syntax tree implementation.
+* pr:8023[] move `StructureNodeKind` from `ide_db` to `ide`.
+* pr:8022[] fix some `clippy` performance warnings.
+* pr:8026[] simplify source maps for fields.
+* pr:8018[], pr:8038[] make `Ty` wrap `TyKind` in an `Arc`.
+* pr:8008[] clean up `CompletionContext::expected_type`.
+* pr:8030[] add `diesel` to the benchmark suite.
+* pr:8029[] enable thread-local coverage mark support.
+* pr:8035[] `unqualfied_path` completions aren't responsible for variant pattern completions.
+* pr:8028[] prepare for returning parents in the "Locate parent module" command.
+* pr:8039[] use `SmallVec` for `Substs`.
+* pr:8046[] add `match` vs. `if let ... else` entry to the style guide.
+* pr:8034[] implement `Crate::transitive_reverse_dependencies`.
+* pr:8042[] (first contribution) add `rustc-perf` version to the metrics JSON.
+* pr:8061[] structural editing API can automatically insert whitespace in simple cases.
+* pr:8059[] support `cfg_attr` in doc-comment syntax highlighting.
+* pr:8065[] handle block doc comments better.
+* pr:8069[] support highlight injection in block doc comments.
+* pr:8080[] change `ItemTree` API to accomodate creating an `ItemTree` per block expression.
+* pr:8087[] make MacroDefId's `AstId` mandatory when possible.
+* pr:8093[] record custom derive helpers in `DefMap`.
+* pr:8097[] parse `extended_key_value_attributes`.
+* pr:8112[] revamp `hir_def` attribute API.
+* pr:8125[] don't use an untyped `String` for ActiveParam tracking.