Enum devise::syn::Lit

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

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

This type is available if Syn is built with the "derive" or "full" feature.

Syntax tree enum

This type is a syntax tree enum.

Variants

Str(LitStr)

A UTF-8 string literal: "foo".

This type is available if Syn is built with the "derive" or "full" feature.

Tuple Fields of Str

0: LitStr

ByteStr(LitByteStr)

A byte string literal: b"foo".

This type is available if Syn is built with the "derive" or "full" feature.

Tuple Fields of ByteStr

0: LitByteStr

Byte(LitByte)

A byte literal: b'f'.

This type is available if Syn is built with the "derive" or "full" feature.

Tuple Fields of Byte

0: LitByte

Char(LitChar)

A character literal: 'a'.

This type is available if Syn is built with the "derive" or "full" feature.

Tuple Fields of Char

0: LitChar

Int(LitInt)

An integer literal: 1 or 1u16.

Holds up to 64 bits of data. Use LitVerbatim for any larger integer literal.

This type is available if Syn is built with the "derive" or "full" feature.

Tuple Fields of Int

0: LitInt

Float(LitFloat)

A floating point literal: 1f64 or 1.0e10f64.

Must be finite. May not be infinte or NaN.

This type is available if Syn is built with the "derive" or "full" feature.

Tuple Fields of Float

0: LitFloat

Bool(LitBool)

A boolean literal: true or false.

This type is available if Syn is built with the "derive" or "full" feature.

Tuple Fields of Bool

0: LitBool

Verbatim(LitVerbatim)

A raw token literal not interpreted by Syn, possibly because it represents an integer larger than 64 bits.

This type is available if Syn is built with the "derive" or "full" feature.

Tuple Fields of Verbatim

0: LitVerbatim

Implementations

impl Lit

pub fn new(token: Literal) -> Lit

Interpret a Syn literal from a proc-macro2 literal.

Not all proc-macro2 literals are valid Syn literals. In particular, doc comments are considered by proc-macro2 to be literals but in Syn they are Attribute.

Panics

Panics if the input is a doc comment literal.

Trait Implementations

impl Clone for Lit

pub fn clone(&self) -> Lit

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Lit

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

Formats the value using the given formatter.

impl From<Lit> for NestedMeta

pub fn from(e: Lit) -> NestedMeta

Performs the conversion.

impl From<LitBool> for Lit

pub fn from(e: LitBool) -> Lit

Performs the conversion.

impl From<LitByte> for Lit

pub fn from(e: LitByte) -> Lit

Performs the conversion.

impl From<LitByteStr> for Lit

pub fn from(e: LitByteStr) -> Lit

Performs the conversion.

impl From<LitChar> for Lit

pub fn from(e: LitChar) -> Lit

Performs the conversion.

impl From<LitFloat> for Lit

pub fn from(e: LitFloat) -> Lit

Performs the conversion.

impl From<LitInt> for Lit

pub fn from(e: LitInt) -> Lit

Performs the conversion.

impl From<LitStr> for Lit

pub fn from(e: LitStr) -> Lit

Performs the conversion.

impl From<LitVerbatim> for Lit

pub fn from(e: LitVerbatim) -> Lit

Performs the conversion.

impl Hash for Lit

pub fn hash<__H>(&self, state: &mut __H) where
    __H: Hasher, 

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Parse for Lit

pub fn parse(input: &ParseBuffer<'_>) -> Result<Lit, Error>

impl PartialEq<Lit> for Lit

pub fn eq(&self, other: &Lit) -> bool

This method tests for self and other values to be equal, and is used by ==.

pub fn ne(&self, other: &Lit) -> bool

This method tests for !=.

impl ToTokens for Lit

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

Write self to the given TokenStream.

fn into_token_stream(self) -> TokenStream

Convert self directly into a TokenStream object.

impl Token for Lit

pub fn peek(cursor: Cursor<'_>) -> bool

pub fn display() -> &'static str

impl Eq for Lit

impl StructuralEq for Lit

impl StructuralPartialEq for Lit