SnippetState in rustfmt_nightly::string - Rust
Description: Result of breaking a string so it fits in a line and the state it ended in. The state informs about what to do with the snippet and how to continue the breaking process.

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## SnippetState

# Enum SnippetState

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    enum SnippetState {
        EndOfInput(String),
        LineEnd(String, usize),
        EndWithLineFeed(String, usize),
    }

Expand description

Result of breaking a string so it fits in a line and the state it ended in. The state informs about what to do with the snippet and how to continue the breaking process.

## Variants§

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### EndOfInput(String)

The input could not be broken and so rewriting the string is finished.

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### LineEnd(String, usize)

The input could be broken and the returned snippet should be ended with a `[StringFormat::line_end]`. The next snippet needs to be indented.

The returned string is the line to print out and the number is the length that got read in the text being rewritten. That length may be greater than the returned string if trailing whitespaces got trimmed.

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### EndWithLineFeed(String, usize)

The input could be broken but a newline is present that cannot be trimmed. The next snippet to be rewritten could use more width than what is specified by the given shape. For example with a multiline string, the next snippet does not need to be indented, allowing more characters to be fit within a line.

The returned string is the line to print out and the number is the length that got read in the text being rewritten.

## Trait Implementations§

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### impl Debug for SnippetState

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#### fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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### impl PartialEq for SnippetState

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#### fn eq(&self, other: &SnippetState) -> bool

Tests for `self` and `other` values to be equal, and is used by `==`.
1.0.0 (const: unstable) · Source§

#### fn ne(&self, other: &Rhs) -> bool

Tests for `!=`. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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### impl StructuralPartialEq for SnippetState

## Auto Trait Implementations§

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### impl Freeze for SnippetState

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### impl RefUnwindSafe for SnippetState

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### impl Send for SnippetState

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### impl Sync for SnippetState

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### impl Unpin for SnippetState

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### impl UnsafeUnpin for SnippetState

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### impl UnwindSafe for SnippetState

## Blanket Implementations§

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### impl<T> Any for T
where T: 'static + ?Sized,

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#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
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### impl<T> Borrow<T> for T
where T: ?Sized,

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#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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### impl<T> BorrowMut<T> for T
where T: ?Sized,

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#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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### impl<T> From<T> for T

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#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T> Instrument for T

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#### fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [`Span`], returning an `Instrumented` wrapper. Read more
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#### fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current `Span`, returning an `Instrumented` wrapper. Read more
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### impl<T, U> Into<U> for T
where U: From<T>,

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#### fn into(self) -> U

Calls `U::from(self)`.

That is, this conversion is whatever the implementation of `From<T> for U` chooses to do.

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### impl<T> IntoEither for T

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#### fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts `self` into a `Left` variant of `Either<Self, Self>` if `into_left` is `true`. Converts `self` into a `Right` variant of `Either<Self, Self>` otherwise. Read more
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#### fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts `self` into a `Left` variant of `Either<Self, Self>` if `into_left(&self)` returns `true`. Converts `self` into a `Right` variant of `Either<Self, Self>` otherwise. Read more
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### impl<T> Pointable for T

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#### const ALIGN: usize

The alignment of pointer.
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#### type Init = T

The type for initializers.
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#### unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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#### unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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#### unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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#### unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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### impl<T, U> TryFrom<U> for T
where U: Into<T>,

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#### type Error = Infallible

The type returned in the event of a conversion error.
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#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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### impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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### impl<T> WithSubscriber for T

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#### fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided `Subscriber` to this type, returning a [`WithDispatch`] wrapper. Read more
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#### fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default `Subscriber` to this type, returning a [`WithDispatch`] wrapper. Read more

## Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain `repr(...)` attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 40 bytes

Size for each variant:

- `EndOfInput`: 24 bytes
- `LineEnd`: 32 bytes
- `EndWithLineFeed`: 32 bytes