# Enum syn::Lit [−] [src]

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

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 infinte or NaN.

`Bool(LitBool)`

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

`Verbatim(Literal)`

A raw token literal not interpreted by Syn.

## Implementations

### `impl Lit` [src]

#### `pub fn new(token: Literal) -> Self` [src]

Interpret a Syn literal from a proc-macro2 literal.

#### `pub fn suffix(&self) -> &str` [src]

#### `pub fn span(&self) -> Span` [src]

#### `pub fn set_span(&mut self, span: Span)` [src]

## Trait Implementations

### `impl Clone for Lit` [src]

#### `fn clone(&self) -> Self` [src]

Returns a copy of the value. Read more

#### `pub fn clone_from(&mut self, source: &Self)`1.0.0 [src]

Performs copy-assignment from `source`. Read more

### `impl From<Lit> for NestedMeta` [src]

#### `fn from(e: Lit) -> NestedMeta` [src]

Performs the conversion.

### `impl From<LitBool> for Lit` [src]

#### `fn from(e: LitBool) -> Lit` [src]

Performs the conversion.

### `impl From<LitByte> for Lit` [src]

#### `fn from(e: LitByte) -> Lit` [src]

Performs the conversion.

### `impl From<LitByteStr> for Lit` [src]

#### `fn from(e: LitByteStr) -> Lit` [src]

Performs the conversion.

### `impl From<LitChar> for Lit` [src]

#### `fn from(e: LitChar) -> Lit` [src]

Performs the conversion.

### `impl From<LitFloat> for Lit` [src]

#### `fn from(e: LitFloat) -> Lit` [src]

Performs the conversion.

### `impl From<LitInt> for Lit` [src]

#### `fn from(e: LitInt) -> Lit` [src]

Performs the conversion.

### `impl From<LitStr> for Lit` [src]

#### `fn from(e: LitStr) -> Lit` [src]

Performs the conversion.

### `impl Parse for Lit` [src]

#### `fn parse(input: ParseStream<'_>) -> Result<Self>` [src]

### `impl ToTokens for Lit` [src]

#### `fn to_tokens(&self, tokens: &mut TokenStream)` [src]

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

#### `pub fn to_token_stream(&self) -> TokenStream` [src]

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

#### `pub fn into_token_stream(self) -> TokenStream` [src]

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

### `impl Token for Lit` [src]

#### `fn peek(cursor: Cursor<'_>) -> bool` [src]

#### `fn display() -> &'static str` [src]

## 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

### `impl<T> Any for T where
T: 'static + ?Sized,` [src]

#### `pub fn type_id(&self) -> TypeId` [src]

Gets the `TypeId` of `self`. Read more

### `impl<T> Borrow<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow(&self) -> &T` [src]

Immutably borrows from an owned value. Read more

### `impl<T> BorrowMut<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow_mut(&mut self) -> &mut T` [src]

Mutably borrows from an owned value. Read more

### `impl<T> From<T> for T` [src]

#### `pub fn from(t: T) -> T` [src]

Performs the conversion.

### `impl<T, U> Into<U> for T where
U: From<T>,` [src]

#### `pub fn into(self) -> U` [src]

Performs the conversion.

### `impl<T> Spanned for T where
T: Spanned + ?Sized,` [src]

#### `pub fn span(&Self) -> Span` [src]

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

### `impl<T> ToOwned for T where
T: Clone,` [src]

#### `type Owned = T`

The resulting type after obtaining ownership.

#### `pub fn to_owned(&self) -> T` [src]

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

#### `pub fn clone_into(&self, target: &mut T)` [src]

🔬 This is a nightly-only experimental API. (`toowned_clone_into`)

recently added

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

### `impl<T, U> TryFrom<U> for T where
U: Into<T>,` [src]

#### `type Error = Infallible`

The type returned in the event of a conversion error.

#### `pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>` [src]

Performs the conversion.

### `impl<T, U> TryInto<U> for T where
U: TryFrom<T>,` [src]

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

The type returned in the event of a conversion error.

#### `pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>` [src]

Performs the conversion.