Merge #2086

2086: document almost all assists r=matklad a=matklad



Co-authored-by: Aleksey Kladov <[email protected]>

2 files changed, 119 insertions, 174 deletions

diff --git a/docs/user/assists.md b/docs/user/assists.md
index 34a95696c..e4d08a7dc 100644
--- a/docs/user/assists.md
+++ b/docs/user/assists.md
@@ -38,6 +38,22 @@ fn main() {
 }
 ```
 
+## `add_hash`
+
+Adds a hash to a raw string literal.
+
+```rust
+// BEFORE
+fn main() {
+    r#"Hello,┃ World!"#;
+}
+
+// AFTER
+fn main() {
+    r##"Hello, World!"##;
+}
+```
+
 ## `add_impl`
 
 Adds a new inherent impl for a type.
@@ -266,6 +282,38 @@ fn main() {
 }
 ```
 
+## `make_raw_string`
+
+Adds `r#` to a plain string literal.
+
+```rust
+// BEFORE
+fn main() {
+    "Hello,┃ World!";
+}
+
+// AFTER
+fn main() {
+    r#"Hello, World!"#;
+}
+```
+
+## `make_usual_string`
+
+Turns a raw string into a plain string.
+
+```rust
+// BEFORE
+fn main() {
+    r#"Hello,┃ "World!""#;
+}
+
+// AFTER
+fn main() {
+    "Hello, \"World!\"";
+}
+```
+
 ## `merge_match_arms`
 
 Merges identical match arms.
@@ -358,3 +406,74 @@ fn handle(action: Action) {
     }
 }
 ```
+
+## `remove_dbg`
+
+Removes `dbg!()` macro call.
+
+```rust
+// BEFORE
+fn main() {
+    ┃dbg!(92);
+}
+
+// AFTER
+fn main() {
+    92;
+}
+```
+
+## `remove_hash`
+
+Removes a hash from a raw string literal.
+
+```rust
+// BEFORE
+fn main() {
+    r#"Hello,┃ World!"#;
+}
+
+// AFTER
+fn main() {
+    r"Hello, World!";
+}
+```
+
+## `replace_if_let_with_match`
+
+Replaces `if let` with an else branch with a `match` expression.
+
+```rust
+// BEFORE
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    ┃if let Action::Move { distance } = action {
+        foo(distance)
+    } else {
+        bar()
+    }
+}
+
+// AFTER
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    match action {
+        Action::Move { distance } => foo(distance),
+        _ => bar(),
+    }
+}
+```
+
+## `split_import`
+
+Wraps the tail of import into braces.
+
+```rust
+// BEFORE
+use std::┃collections::HashMap;
+
+// AFTER
+use std::{collections::HashMap};
+```
diff --git a/docs/user/features.md b/docs/user/features.md
index 2e213e34c..7ae2ca7b6 100644
--- a/docs/user/features.md
+++ b/docs/user/features.md
@@ -118,180 +118,6 @@ impl Debug<|> for Foo {
 }
 ```
 
-- Fill struct fields
-
-```rust
-// before:
-struct S<'a, D> {
-    a: u32,
-    b: String,
-    c: (i32, i32),
-    d: D,
-    r: &'a str,
-}
-
-fn main() {
-    let s = S<|> {}
-}
-
-// after:
-struct S<'a, D> {
-    a: u32,
-    b: String,
-    c: (i32, i32),
-    d: D,
-    r: &'a str,
-}
-
-fn main() {
-    let s = <|>S {
-        a: (),
-        b: (),
-        c: (),
-        d: (),
-        r: (),
-    }
-}
-```
-
-- Remove `dbg!`
-
-```rust
-// before:
-fn foo(n: usize) {
-    if let Some(_) = dbg!(n.<|>checked_sub(4)) {
-        // ...
-    }
-}
-
-// after:
-fn foo(n: usize) {
-    if let Some(_) = n.<|>checked_sub(4) {
-        // ...
-    }
-}
-```
-
-- Replace if-let with match:
-
-```rust
-// before:
-impl VariantData {
-    pub fn is_struct(&self) -> bool {
-        if <|>let VariantData::Struct(..) = *self {
-            true
-        } else {
-            false
-        }
-    }
-}
-
-// after:
-impl VariantData {
-    pub fn is_struct(&self) -> bool {
-        <|>match *self {
-            VariantData::Struct(..) => true,
-            _ => false,
-        }
-    }
-}
-```
-
-- Split import
-
-```rust
-// before:
-use crate:<|>:db::{RootDatabase, FileSymbol};
-// after:
-use crate::{<|>db::{RootDatabase, FileSymbol}};
-```
-
-- Move if condition to match arm guard
-```rust
-// before:
-fn f() {
-    let mut t = 'a';
-    let chars = "abcd";
-    match t {
-        '\r' => if chars.clone().next().is_some() {
-            t = 'e';<|>
-            false
-        },
-        _ => true
-    }
-}
-
-// after:
-fn f() {
-    let mut t = 'a';
-    let chars = "abcd";
-    match t {
-        '\r' <|>if chars.clone().next().is_some() => {
-            t = 'e';
-            false
-        },
-        _ => true
-    }
-}
-```
-
-- Make raw string unescaped
-
-```rust
-// before:
-fn f() {
-    let s = <|>"ab\ncd";
-}
-
-// after:
-fn f() {
-    let s = <|>r#"ab
-cd"#;
-}
-```
-
-- Make usual string
-
-```rust
-// before:
-fn f() {
-    let s = <|>r#"abcd"#;
-}
-
-// after:
-fn f() {
-    let s = <|>"abcd";
-}
-```
-
-- Add hash
-
-```rust
-// before:
-fn f() {
-    let s = <|>r"abcd";
-}
-
-// after:
-fn f() {
-    let s = <|>r#"abcd"#;
-}
-```
-
-- Remove hash
-
-```rust
-// before:
-fn f() {
-    let s = <|>r#"abcd"#;
-}
-
-// after:
-fn f() {
-    let s = <|>r"abcd";
-}
-```
-
 ### Magic Completions
 
 In addition to usual reference completion, rust-analyzer provides some ✨magic✨