# Lit in syn - Rust
A Rust literal such as a string or integer or boolean.
Keywords: rust, rustlang, rust-lang, Lit

# Enum syn::Lit

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    pub enum Lit {
        Str(LitStr),
        ByteStr(LitByteStr),
        Byte(LitByte),
        Char(LitChar),
        Int(LitInt),
        Float(LitFloat),
        Bool(LitBool),
        Verbatim(Literal),
    }

Expand description

A Rust literal such as a string or integer or boolean.

## Syntax tree enum

This type is a syntax tree enum.

## Variants

### `Str(LitStr)`

A UTF-8 string literal: `"foo"`.

### `ByteStr(LitByteStr)`

A byte string literal: `b"foo"`.

### `Byte(LitByte)`

A byte literal: `b'f'`.

### `Char(LitChar)`

A character literal: `'a'`.

### `Int(LitInt)`

An integer literal: `1` or `1u16`.

### `Float(LitFloat)`

A floating point literal: `1f64` or `1.0e10f64`.

Must be finite. May not be infinite or NaN.

### `Bool(LitBool)`

A boolean literal: `true` or `false`.

### `Verbatim(Literal)`

A raw token literal not interpreted by Syn.

## Implementations

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### impl Lit

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#### pub fn new(token: Literal) -> Self

Interpret a Syn literal from a proc-macro2 literal.

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#### pub fn suffix(&self) -> &str

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#### pub fn span(&self) -> Span

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#### pub fn set_span(&mut self, span: Span)

## Trait Implementations

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### impl Clone for Lit

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#### fn clone(&self) -> Self

Returns a copy of the value. Read more

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#### fn clone_from(&mut self, source: &Self)

Performs copy-assignment from `source`. Read more

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### impl From<Lit> for NestedMeta

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#### fn from(e: Lit) -> NestedMeta

Converts to this type from the input type.

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### impl From<LitBool> for Lit

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#### fn from(e: LitBool) -> Lit

Converts to this type from the input type.

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### impl From<LitByte> for Lit

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#### fn from(e: LitByte) -> Lit

Converts to this type from the input type.

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### impl From<LitByteStr> for Lit

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#### fn from(e: LitByteStr) -> Lit

Converts to this type from the input type.

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### impl From<LitChar> for Lit

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#### fn from(e: LitChar) -> Lit

Converts to this type from the input type.

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### impl From<LitFloat> for Lit

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#### fn from(e: LitFloat) -> Lit

Converts to this type from the input type.

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### impl From<LitInt> for Lit

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#### fn from(e: LitInt) -> Lit

Converts to this type from the input type.

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### impl From<LitStr> for Lit

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#### fn from(e: LitStr) -> Lit

Converts to this type from the input type.

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### impl Parse for Lit

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#### fn parse(input: ParseStream<'_>) -> Result<Self>

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### impl ToTokens for Lit

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#### fn to_tokens(&self, tokens: &mut TokenStream)

Write `self` to the given `TokenStream`. Read more

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#### fn to_token_stream(&self) -> TokenStream

Convert `self` directly into a `TokenStream` object. Read more

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#### fn into_token_stream(self) -> TokenStream

Convert `self` directly into a `TokenStream` object. Read more

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### impl Token for Lit

## Auto Trait Implementations

### impl RefUnwindSafe for Lit

### impl !Send for Lit

### impl !Sync for Lit

### impl Unpin for Lit

### impl UnwindSafe for Lit

## 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,

const: unstable · source

#### 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,

const: unstable · source

#### 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

const: unstable · source

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

Returns the argument unchanged.

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### impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

#### 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> Spanned for T where
T: Spanned + ?Sized,

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#### fn span(&self) -> Span

Returns a `Span` covering the complete contents of this syntax tree node, or `Span::call_site()` if this node is empty. Read more

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### impl<T> ToOwned for T where
T: Clone,

#### type Owned = T

The resulting type after obtaining ownership.

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

Creates owned data from borrowed data, usually by cloning. Read more

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#### fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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### impl<T, U> TryFrom<U> for T where
U: Into<T>,

#### type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

#### 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>,

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

The type returned in the event of a conversion error.

const: unstable · source

#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.