```
#### `1000`:
+
```rust
// Each element will be placed on the same line as much as possible.
-let a = vec![0, 1, 2, 3, 4, ...
- ..., 999, 1000];
+let a = vec![
+ 0, 1, 2, 3, 4, ...
+ ..., 999, 1000,
+];
```
## `array_layout`
#### Lines shorter than `array_width`:
```rust
-let lorem =
- vec!["ipsum", "dolor", "sit", "amet", "consectetur", "adipiscing", "elit"];
+let lorem = vec!["ipsum", "dolor", "sit", "amet", "consectetur", "adipiscing", "elit"];
```
#### Lines longer than `array_width`:
See [`array_layout`](#array_layout).
+## `attributes_on_same_line_as_field`
+
+Try to put attributes on the same line as fields
+
+- **Default value**: `true`
+- **Possible values**: `true`, `false`
+
+#### `true`
+
+```rust
+struct Lorem {
+ #[serde(rename = "Ipsum")] ipsum: usize,
+ #[serde(rename = "Dolor")] dolor: usize,
+ #[serde(rename = "Amet")] amet: usize,
+}
+```
+
+#### `false`
+
+```rust
+struct Lorem {
+ #[serde(rename = "Ipsum")]
+ ipsum: usize,
+ #[serde(rename = "Dolor")]
+ dolor: usize,
+ #[serde(rename = "Amet")]
+ amet: usize,
+}
+```
+
+## `attributes_on_same_line_as_variant`
+
+Try to put attributes on the same line as variants
+
+- **Default value**: `true`
+- **Possible values**: `true`, `false`
+
+#### `true`
+
+```rust
+enum Lorem {
+ #[serde(skip_serializing)] Ipsum,
+ #[serde(skip_serializing)] Dolor,
+ #[serde(skip_serializing)] Amet,
+}
+```
+
+#### `false`
+
+```rust
+enum Lorem {
+ #[serde(skip_serializing)]
+ Ipsum,
+ #[serde(skip_serializing)]
+ Dolor,
+ #[serde(skip_serializing)]
+ Amet,
+}
+```
+
## `chain_indent`
Indentation of chain
});
```
+**Note**: This option only takes effect when `fn_call_style` is set to `"Visual"`.
+
## `combine_control_expr`
Combine control expressions with function calls.
// body
}
- fn lorem(ipsum: Ipsum, dolor: Dolor, sit: Sit, amet: Amet, consectetur: Consectetur,
- adipiscing: Adipiscing, elit: Elit);
+ fn lorem(
+ ipsum: Ipsum, dolor: Dolor, sit: Sit, amet: Amet, consectetur: Consectetur,
+ adipiscing: Adipiscing, elit: Elit,
+ );
- fn lorem(ipsum: Ipsum, dolor: Dolor, sit: Sit, amet: Amet, consectetur: Consectetur,
- adipiscing: Adipiscing, elit: Elit) {
+ fn lorem(
+ ipsum: Ipsum, dolor: Dolor, sit: Sit, amet: Amet, consectetur: Consectetur,
+ adipiscing: Adipiscing, elit: Elit,
+ ) {
// body
}
}
// body
}
- fn lorem(ipsum: Ipsum, dolor: Dolor, sit: Sit, amet: Amet, consectetur: Consectetur,
- adipiscing: Adipiscing, elit: Elit);
-
- fn lorem(ipsum: Ipsum,
- dolor: Dolor,
- sit: Sit,
- amet: Amet,
- consectetur: onsectetur,
- adipiscing: Adipiscing,
- elit: Elit) {
+ fn lorem(
+ ipsum: Ipsum, dolor: Dolor, sit: Sit, amet: Amet, consectetur: Consectetur,
+ adipiscing: Adipiscing, elit: Elit,
+ );
+
+ fn lorem(
+ ipsum: Ipsum,
+ dolor: Dolor,
+ sit: Sit,
+ amet: Amet,
+ consectetur: onsectetur,
+ adipiscing: Adipiscing,
+ elit: Elit,
+ ) {
// body
}
}
// body
}
- fn lorem(ipsum: Ipsum,
- dolor: Dolor,
- sit: Sit,
- amet: Amet,
- consectetur: onsectetur,
- adipiscing: Adipiscing,
- elit: Elit);
-
- fn lorem(ipsum: Ipsum,
- dolor: Dolor,
- sit: Sit,
- amet: Amet,
- consectetur: onsectetur,
- adipiscing: Adipiscing,
- elit: Elit) {
+ fn lorem(
+ ipsum: Ipsum,
+ dolor: Dolor,
+ sit: Sit,
+ amet: Amet,
+ consectetur: onsectetur,
+ adipiscing: Adipiscing,
+ elit: Elit,
+ );
+
+ fn lorem(
+ ipsum: Ipsum,
+ dolor: Dolor,
+ sit: Sit,
+ amet: Amet,
+ consectetur: onsectetur,
+ adipiscing: Adipiscing,
+ elit: Elit,
+ ) {
// body
}
}
ipsum: Ipsum,
dolor: Dolor,
sit: Sit,
- amet: Amet)
- -> DolorSitAmetConsecteturAdipiscingElitLoremIpsumDolorSitAmetConsecteturAdipiscingElit {
+ amet: Amet,
+) -> DolorSitAmetConsecteturAdipiscingElitLoremIpsumDolorSitAmetConsecteturAdipiscingElit {
// body
}
```
```rust
fn lorem
- (ipsum: Ipsum,
- dolor: Dolor,
- sit: Sit,
- amet: Amet)
- -> DolorSitAmetConsecteturAdipiscingElitLoremIpsumDolorSitAmetConsecteturAdipiscingElit {
+ (
+ ipsum: Ipsum,
+ dolor: Dolor,
+ sit: Sit,
+ amet: Amet,
+) -> DolorSitAmetConsecteturAdipiscingElitLoremIpsumDolorSitAmetConsecteturAdipiscingElit {
// body
}
```
}
fn lorem<T>(ipsum: T)
- where T: Add + Sub + Mul + Div
+where
+ T: Add + Sub + Mul + Div,
{
// body
}
}
fn lorem<T>(ipsum: T)
- where T: Add + Sub + Mul + Div {
+where
+ T: Add + Sub + Mul + Div, {
// body
}
```
}
fn lorem<T>(ipsum: T)
- where T: Add + Sub + Mul + Div
+where
+ T: Add + Sub + Mul + Div,
{
// body
}
```
+**Note**: This option only takes effect when `fn_call_style` is set to `"Visual"`.
+
## `fn_single_line`
Put single-expression functions on a single line
Adipiscing: Eq = usize,
Consectetur: Eq = usize,
Elit: Eq = usize
->(ipsum: Ipsum,
+>(
+ ipsum: Ipsum,
dolor: Dolor,
sit: Sit,
amet: Amet,
adipiscing: Adipiscing,
consectetur: Consectetur,
- elit: Elit)
- -> T {
+ elit: Elit,
+) -> T {
// body
}
```
See also: [`match_block_trailing_comma`](#match_block_trailing_comma), [`wrap_match_arms`](#wrap_match_arms).
+## `imports_indent`
+
+Indent style of imports
+
+- **Default Value**: `"Visual"`
+- **Possible values**: `"Block"`, `"Visual"`
+
+#### `"Block"`
+
+```rust
+use foo::{
+ xxx,
+ yyy,
+ zzz,
+};
+```
+
+#### `"Visual"`
+
+```rust
+use foo::{xxx,
+ yyy,
+ zzz};
+```
+
+See also: [`imports_layout`](#imports_layout).
+
+## `imports_layout`
+
+Item layout inside a imports block
+
+- **Default value**: "Mixed"
+- **Possible values**: "Horizontal", "HorizontalVertical", "Mixed", "Vertical"
+
+#### `"Mixed"`
+
+```rust
+use foo::{xxx, yyy, zzz};
+
+use foo::{aaa, bbb, ccc,
+ ddd, eee, fff};
+```
+
+#### `"Horizontal"`
+
+**Note**: This option forces to put everything on one line and may exceeds `max_width`.
+
+```rust
+use foo::{xxx, yyy, zzz};
+
+use foo::{aaa, bbb, ccc, ddd, eee, fff};
+```
+
+#### `"HorizontalVertical"`
+
+```rust
+use foo::{xxx, yyy, zzz};
+
+use foo::{aaa,
+ bbb,
+ ccc,
+ ddd,
+ eee,
+ fff};
+```
+
+#### `"Vertical"`
+
+```rust
+use foo::{xxx,
+ yyy,
+ zzz};
+
+use foo::{aaa,
+ bbb,
+ ccc,
+ ddd,
+ eee,
+ fff};
+```
+
## `item_brace_style`
Brace style for structs and enums
See also: [`indent_match_arms`](#indent_match_arms), [`trailing_comma`](#trailing_comma), [`wrap_match_arms`](#wrap_match_arms).
+## `match_pattern_separator_break_point`
+
+Put a match sub-patterns' separator (`|`) in front or back.
+
+- **Default value**: `"Back"`
+- **Possible values**: `"Back"`, `"Front"`
+
+#### `"Back"`:
+
+```rust
+match m {
+ Variant::Tag |
+ Variant::Tag2 |
+ Variant::Tag3 |
+ Variant::Tag4 |
+ Variant::Tag5 |
+ Variant::Tag6 => {}
+}
+```
+
+#### `Front`:
+
+```rust
+match m {
+ Variant::Tag
+ | Variant::Tag2
+ | Variant::Tag3
+ | Variant::Tag4
+ | Variant::Tag5
+ | Variant::Tag6 => {}
+}
+```
+
## `max_width`
Maximum width of each line
See also [`error_on_line_overflow`](#error_on_line_overflow).
+## `merge_derives`
+
+Merge multiple derives into a single one.
+
+- **Default value**: `true`
+- **Possible values**: `true`, `false`
+
+#### `true`:
+
+```rust
+#[derive(Eq, PartialEq, Debug, Copy, Clone)]
+pub enum Foo {}
+```
+
+#### `false`:
+
+```rust
+#[derive(Eq, PartialEq)]
+#[derive(Debug)]
+#[derive(Copy, Clone)]
+pub enum Foo {}
+```
+
+## `multiline_closure_forces_block`
+
+Force multiline closure bodies to be wrapped in a block
+
+- **Default value**: `false`
+- **Possible values**: `false`, `true`
+
+#### `true`:
+
+```rust
+
+result.and_then(|maybe_value| {
+ match maybe_value {
+ None => ...,
+ Some(value) => ...,
+ }
+})
+```
+
+#### `false`:
+
+```rust
+result.and_then(|maybe_value| match maybe_value {
+ None => ...,
+ Some(value) => ...,
+})
+```
+
+## `multiline_match_arm_forces_block`
+
+Force multiline match arm bodies to be wrapped in a block
+
+- **Default value**: `false`
+- **Possible values**: `false`, `true`
+
+#### `false`:
+
+```rust
+match lorem {
+ None => if ipsum {
+ println!("Hello World");
+ },
+ Some(dolor) => ...,
+}
+```
+
+#### `true`:
+
+```rust
+match lorem {
+ None => {
+ if ipsum {
+ println!("Hello World");
+ }
+ }
+ Some(dolor) => ...,
+}
+```
+
## `newline_style`
Unix or Windows line endings
See also: [`match_block_trailing_comma`](#match_block_trailing_comma).
+## `trailing_semicolon`
+
+Add trailing semicolon after break, continue and return
+
+- **Default value**: `true`
+- **Possible values**: `true`, `false`
+
+#### `true`:
+```rust
+fn foo() -> usize {
+ return 0;
+}
+```
+
+#### `false`:
+```rust
+fn foo() -> usize {
+ return 0
+}
+```
+
## `type_punctuation_density`
Determines if `+` or `=` are wrapped in spaces in the punctuation of types
## `where_density`
-Density of a where clause
+Density of a where clause.
- **Default value**: `"CompressedIfEmpty"`
- **Possible values**: `"Compressed"`, `"CompressedIfEmpty"`, `"Tall"`, `"Vertical"`
```rust
trait Lorem {
- fn ipsum<Dolor>(dolor: Dolor) -> Sit where Dolor: Eq;
+ fn ipsum<Dolor>(dolor: Dolor) -> Sit
+ where Dolor: Eq;
- fn ipsum<Dolor>(dolor: Dolor) -> Sit where Dolor: Eq {
+ fn ipsum<Dolor>(dolor: Dolor) -> Sit
+ where Dolor: Eq {
// body
}
}
```rust
trait Lorem {
- fn ipsum<Dolor>(dolor: Dolor) -> Sit where Dolor: Eq;
+ fn ipsum<Dolor>(dolor: Dolor) -> Sit
+ where Dolor: Eq;
fn ipsum<Dolor>(dolor: Dolor) -> Sit
- where Dolor: Eq
+ where
+ Dolor: Eq,
{
// body
}
```rust
trait Lorem {
fn ipsum<Dolor>(dolor: Dolor) -> Sit
- where Dolor: Eq;
+ where
+ Dolor: Eq;
fn ipsum<Dolor>(dolor: Dolor) -> Sit
- where Dolor: Eq
+ where
+ Dolor: Eq,
{
// body
}
}
```
+**Note**: This option only takes effect when `where_style` is set to `"Legacy"`.
+
See also: [`where_density`](#where_density), [`where_pred_indent`](#where_pred_indent), [`where_style`](#where_style).
## `where_pred_indent`
}
```
+**Note**: This option only takes effect when `where_style` is set to `"Legacy"`.
+
See also: [`where_density`](#where_density), [`where_layout`](#where_layout), [`where_style`](#where_style).
## `where_style`
What Write Mode to use when none is supplied: Replace, Overwrite, Display, Diff, Coverage
-- **Default value**: `"Replace"`
+- **Default value**: `"Overwrite"`
- **Possible values**: `"Checkstyle"`, `"Coverage"`, `"Diff"`, `"Display"`, `"Overwrite"`, `"Plain"`, `"Replace"`
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