Enum rustc_ap_rustc_ast::ast::LitKind

pub enum LitKind {
    Str(Symbol, StrStyle),
    ByteStr(Lrc<[u8]>),
    Byte(u8),
    Char(char),
    Int(u128, LitIntType),
    Float(Symbol, LitFloatType),
    Bool(bool),
    Err(Symbol),
}

Literal kind.

E.g., "foo", 42, 12.34, or bool.

Variants

Str(Symbol, StrStyle)

A string literal ("foo").

ByteStr(Lrc<[u8]>)

A byte string (b"foo").

Byte(u8)

A byte char (b'f').

Char(char)

A character literal ('a').

Int(u128, LitIntType)

An integer literal (1).

Float(Symbol, LitFloatType)

A float literal (1f64 or 1E10f64).

Bool(bool)

A boolean literal.

Err(Symbol)

Placeholder for a literal that wasn’t well-formed in some way.

Implementations

impl LitKind

pub fn to_lit_token(&self) -> Lit

Attempts to recover a token from semantic literal. This function is used when the original token doesn’t exist (e.g. the literal is created by an AST-based macro) or unavailable (e.g. from HIR pretty-printing).

impl LitKind

pub fn is_str(&self) -> bool

Returns true if this literal is a string.

pub fn is_bytestr(&self) -> bool

Returns true if this literal is byte literal string.

pub fn is_numeric(&self) -> bool

Returns true if this is a numeric literal.

pub fn is_unsuffixed(&self) -> bool

Returns true if this literal has no suffix. Note: this will return true for literals with prefixes such as raw strings and byte strings.

pub fn is_suffixed(&self) -> bool

Returns true if this literal has a suffix.

Trait Implementations

impl Clone for LitKind

fn clone(&self) -> LitKind

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LitKind

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

Formats the value using the given formatter.

impl<__D: Decoder> Decodable<__D> for LitKind

fn decode(__decoder: &mut __D) -> Result<Self, <__D as Decoder>::Error>

impl<__E: Encoder> Encodable<__E> for LitKind

fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>

impl Hash for LitKind

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

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<__CTX> HashStable<__CTX> for LitKind where
    __CTX: HashStableContext, 

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl PartialEq<LitKind> for LitKind

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

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

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

This method tests for !=.

impl Eq for LitKind

impl StructuralEq for LitKind

impl StructuralPartialEq for LitKind