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rust-lang · Jun 21, 2021 · 71f01d1 · 71f01d1
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -176,7 +176,7 @@ https://rust-lang.github.io/rustfmt/?version=v1.4.33&search=#imports_granularity
 
 ### Changed
 
-- Original comment indentation for trailing comments within an `if` is now taken into account when determining the indentation level to use for the trailing comment in formatted code. This does not modify any existing code formatted with rustfmt; it simply gives the programmer discretion to specify whether the comment is associated to the `else` block, or if the trailing comment is just a member of the `if` block. ([#1575](https://github.com/rust-lang/rustfmt/issues/1575), [#4120](https://github.com/rust-lang/rustfmt/issues/4120), [#4506](https://github.com/rust-lang/rustfmt/issues/4506)) 
+- Original comment indentation for trailing comments within an `if` is now taken into account when determining the indentation level to use for the trailing comment in formatted code. This does not modify any existing code formatted with rustfmt; it simply gives the programmer discretion to specify whether the comment is associated to the `else` block, or if the trailing comment is just a member of the `if` block. ([#1575](https://github.com/rust-lang/rustfmt/issues/1575), [#4120](https://github.com/rust-lang/rustfmt/issues/4120), [#4506](https://github.com/rust-lang/rustfmt/issues/4506))
 
 In this example the `// else comment` refers to the `else`:
 ```rust
@@ -213,7 +213,7 @@ if toks.eat_token(Token::Word("modify"))? && toks.eat_token(Token::Word("labels"
 
 ### Fixed
 - Formatting of empty blocks with attributes which only contained comments is no longer butchered.([#4475](https://github.com/rust-lang/rustfmt/issues/4475), [#4467](https://github.com/rust-lang/rustfmt/issues/4467), [#4452](https://github.com/rust-lang/rustfmt/issues/4452#issuecomment-705886282), [#4522](https://github.com/rust-lang/rustfmt/issues/4522))
-- Indentation of trailing comments in non-empty extern blocks is now correct. ([#4120](https://github.com/rust-lang/rustfmt/issues/4120#issuecomment-696491872)) 
+- Indentation of trailing comments in non-empty extern blocks is now correct. ([#4120](https://github.com/rust-lang/rustfmt/issues/4120#issuecomment-696491872))
 
 ### Install/Download Options
 - **crates.io package** - *pending*
@@ -297,7 +297,7 @@ if toks.eat_token(Token::Word("modify"))? && toks.eat_token(Token::Word("labels"
 - Fix aligning comments of different group
 - Fix flattening imports with a single `self`.
 - Fix removing attributes on function parameters.
-- Fix removing `impl` keyword from opaque type. 
+- Fix removing `impl` keyword from opaque type.
 
 ## [1.4.8] 2019-09-08
 
@@ -329,7 +329,7 @@ if toks.eat_token(Token::Word("modify"))? && toks.eat_token(Token::Word("labels"
 
 - Add `--message-format` command line option to `cargo-fmt`.
 - Add `-l,--files-with-diff` command line option to `rustfmt`.
-- Add `json` emit mode. 
+- Add `json` emit mode.
 
 ### Fixed
 
@@ -380,7 +380,7 @@ if toks.eat_token(Token::Word("modify"))? && toks.eat_token(Token::Word("labels"
 
 ### Added
 
-- Add new attribute `rustfmt::skip::attributes` to prevent rustfmt 
+- Add new attribute `rustfmt::skip::attributes` to prevent rustfmt
 from formatting an attribute #3665
 
 ### Changed

diff --git a/Configurations.md b/Configurations.md
@@ -17,27 +17,27 @@ To enable unstable options, set `unstable_features = true` in `rustfmt.toml` or
 
 Below you find a detailed visual guide on all the supported configuration options of rustfmt:
 
-## `array_width` 
+## `array_width`
 
 Maximum width of an array literal before falling back to vertical formatting.
 
 - **Default value**: `60`
 - **Possible values**: any positive integer that is less than or equal to the value specified for [`max_width`](#max_width)
 - **Stable**: Yes
 
-By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `array_width` will take precedence. 
+By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `array_width` will take precedence.
 
 See also [`max_width`](#max_width) and [`use_small_heuristics`](#use_small_heuristics)
 
-## `attr_fn_like_width` 
+## `attr_fn_like_width`
 
 Maximum width of the args of a function-like attributes before falling back to vertical formatting.
 
 - **Default value**: `70`
 - **Possible values**: any positive integer that is less than or equal to the value specified for [`max_width`](#max_width)
 - **Stable**: Yes
 
-By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `attr_fn_like_width` will take precedence. 
+By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `attr_fn_like_width` will take precedence.
 
 See also [`max_width`](#max_width) and [`use_small_heuristics`](#use_small_heuristics)
 
@@ -295,15 +295,15 @@ where
 }
 ```
 
-## `chain_width` 
+## `chain_width`
 
 Maximum width of a chain to fit on one line.
 
 - **Default value**: `60`
 - **Possible values**: any positive integer that is less than or equal to the value specified for [`max_width`](#max_width)
 - **Stable**: Yes
 
-By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `chain_width` will take precedence. 
+By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `chain_width` will take precedence.
 
 See also [`max_width`](#max_width) and [`use_small_heuristics`](#use_small_heuristics)
 
@@ -751,15 +751,15 @@ trait Lorem {
 }
 ```
 
-## `fn_call_width` 
+## `fn_call_width`
 
 Maximum width of the args of a function call before falling back to vertical formatting.
 
 - **Default value**: `60`
 - **Possible values**: any positive integer that is less than or equal to the value specified for [`max_width`](#max_width)
 - **Stable**: Yes
 
-By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `fn_call_width` will take precedence. 
+By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `fn_call_width` will take precedence.
 
 See also [`max_width`](#max_width) and [`use_small_heuristics`](#use_small_heuristics)
 
@@ -2124,15 +2124,15 @@ Don't reformat out of line modules
 - **Possible values**: `true`, `false`
 - **Stable**: No (tracking issue: #3389)
 
-## `single_line_if_else_max_width` 
+## `single_line_if_else_max_width`
 
 Maximum line length for single line if-else expressions. A value of `0` (zero) results in if-else expressions always being broken into multiple lines. Note this occurs when `use_small_heuristics` is set to `Off`.
 
 - **Default value**: `50`
 - **Possible values**: any positive integer that is less than or equal to the value specified for [`max_width`](#max_width)
 - **Stable**: Yes
 
-By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `single_line_if_else_max_width` will take precedence. 
+By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `single_line_if_else_max_width` will take precedence.
 
 See also [`max_width`](#max_width) and [`use_small_heuristics`](#use_small_heuristics)
 
@@ -2313,27 +2313,27 @@ fn main() {
 
 See also: [`indent_style`](#indent_style).
 
-## `struct_lit_width` 
+## `struct_lit_width`
 
 Maximum width in the body of a struct literal before falling back to vertical formatting. A value of `0` (zero) results in struct literals always being broken into multiple lines. Note this occurs when `use_small_heuristics` is set to `Off`.
 
 - **Default value**: `18`
 - **Possible values**: any positive integer that is less than or equal to the value specified for [`max_width`](#max_width)
 - **Stable**: Yes
 
-By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `struct_lit_width` will take precedence. 
+By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `struct_lit_width` will take precedence.
 
 See also [`max_width`](#max_width), [`use_small_heuristics`](#use_small_heuristics), and [`struct_lit_single_line`](#struct_lit_single_line)
 
-## `struct_variant_width` 
+## `struct_variant_width`
 
 Maximum width in the body of a struct variant before falling back to vertical formatting. A value of `0` (zero) results in struct literals always being broken into multiple lines. Note this occurs when `use_small_heuristics` is set to `Off`.
 
 - **Default value**: `35`
 - **Possible values**: any positive integer that is less than or equal to the value specified for [`max_width`](#max_width)
 - **Stable**: Yes
 
-By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `struct_variant_width` will take precedence. 
+By default this option is set as a percentage of [`max_width`](#max_width) provided by [`use_small_heuristics`](#use_small_heuristics), but a value set directly for `struct_variant_width` will take precedence.
 
 See also [`max_width`](#max_width) and [`use_small_heuristics`](#use_small_heuristics)
 
@@ -2530,7 +2530,7 @@ fn main() {
 
 This option can be used to simplify the management and bulk updates of the granular width configuration settings ([`fn_call_width`](#fn_call_width), [`attr_fn_like_width`](#attr_fn_like_width), [`struct_lit_width`](#struct_lit_width), [`struct_variant_width`](#struct_variant_width), [`array_width`](#array_width), [`chain_width`](#chain_width), [`single_line_if_else_max_width`](#single_line_if_else_max_width)), that respectively control when formatted constructs are multi-lined/vertical based on width.
 
-Note that explicitly provided values for the width configuration settings take precedence and override the calculated values determined by `use_small_heuristics`. 
+Note that explicitly provided values for the width configuration settings take precedence and override the calculated values determined by `use_small_heuristics`.
 
 - **Default value**: `"Default"`
 - **Possible values**: `"Default"`, `"Off"`, `"Max"`
@@ -2595,7 +2595,7 @@ fn main() {
 ```
 
 #### `Off`:
-When `use_small_heuristics` is set to `Off`, the granular width settings are functionally disabled and ignored. See the documentation for the respective width config options for specifics. 
+When `use_small_heuristics` is set to `Off`, the granular width settings are functionally disabled and ignored. See the documentation for the respective width config options for specifics.
 
 ```rust
 enum Lorem {

diff --git a/Contributing.md b/Contributing.md
@@ -38,7 +38,7 @@ colourised diff will be printed so that the offending line(s) can quickly be
 identified.
 
 Without explicit settings, the tests will be run using rustfmt's default
-configuration. It is possible to run a test using non-default settings in several 
+configuration. It is possible to run a test using non-default settings in several
 ways. Firstly, you can include configuration parameters in comments at the top
 of the file. For example: to use 3 spaces per tab, start your test with
 `// rustfmt-tab_spaces: 3`. Just remember that the comment is part of the input,

diff --git a/Design.md b/Design.md
@@ -150,8 +150,8 @@ for its configuration.
 
 Our visitor keeps track of the desired current indent due to blocks (
 `block_indent`). Each `visit_*` method reformats code according to this indent,
-`config.comment_width()` and `config.max_width()`. Most reformatting that is done 
-in the `visit_*` methods is a bit hacky and is meant to be temporary until it can 
+`config.comment_width()` and `config.max_width()`. Most reformatting that is done
+in the `visit_*` methods is a bit hacky and is meant to be temporary until it can
 be done properly.
 
 There are a bunch of methods called `rewrite_*`. They do the bulk of the

diff --git a/README.md b/README.md
@@ -180,13 +180,13 @@ needs to be specified in `rustfmt.toml`, e.g., with `edition = "2018"`.
 
 * For things you do not want rustfmt to mangle, use `#[rustfmt::skip]`
 * To prevent rustfmt from formatting a macro or an attribute,
-  use `#[rustfmt::skip::macros(target_macro_name)]` or 
+  use `#[rustfmt::skip::macros(target_macro_name)]` or
   `#[rustfmt::skip::attributes(target_attribute_name)]`
 
   Example:
 
     ```rust
-    #![rustfmt::skip::attributes(custom_attribute)]   
+    #![rustfmt::skip::attributes(custom_attribute)]
 
     #[custom_attribute(formatting , here , should , be , Skipped)]
     #[rustfmt::skip::macros(html)]

diff --git a/ci/integration.sh b/ci/integration.sh
@@ -15,7 +15,7 @@ set -ex
 # it again.
 #
 #which cargo-fmt || cargo install --force
-CFG_RELEASE=nightly CFG_RELEASE_CHANNEL=nightly cargo install --path . --force 
+CFG_RELEASE=nightly CFG_RELEASE_CHANNEL=nightly cargo install --path . --force
 
 echo "Integration tests for: ${INTEGRATION}"
 cargo fmt -- --version

diff --git a/docs/index.html b/docs/index.html
@@ -85,7 +85,7 @@
                 outputHtml() {
                   const ast = this.configurationDescriptions
                                   .filter(({ head, text, stable }) => {
-                                    
+
                                     if (
                                       text.includes(this.searchCondition) === false &&
                                       head.includes(this.searchCondition) === false
@@ -105,7 +105,7 @@
               },
               created: async function() {
                 const res = await axios.get(ConfigurationMdUrl);
-                const { 
+                const {
                   about,
                   configurationAbout,
                   configurationDescriptions
@@ -144,7 +144,7 @@
                   const lastIndex = stack.length - 1;
                   stack[lastIndex].push(next);
                   return stack;
-                }, 
+                },
                 [[]]);
               });
             }
@@ -179,7 +179,7 @@
                 configurationAbout, ...configurationDescriptions
               ] = configurations;
               configurationAbout.value.links = {};
-              
+
               return {
                 about,
                 configurationAbout: configurationAbout.value,