Struct syntex_syntax2::ext::hygiene::Mark

pub struct Mark(_);

A mark is a unique id associated with a macro expansion.

Methods

impl Mark

pub fn fresh(parent: Mark) -> Mark

pub fn root() -> Mark

The mark of the theoretical expansion that generates freshly parsed, unexpanded AST.

pub fn as_u32(self) -> u32

pub fn from_u32(raw: u32) -> Mark

pub fn expn_info(self) -> Option<ExpnInfo>

pub fn set_expn_info(self, info: ExpnInfo)

pub fn modern(self) -> Mark

pub fn is_modern(self) -> bool

pub fn set_modern(self)

pub fn is_descendant_of(self, ancestor: Mark) -> bool

Trait Implementations

impl Eq for Mark

impl Default for Mark

fn default() -> Mark

Returns the "default value" for a type.

impl Copy for Mark

impl Hash for Mark

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 Clone for Mark

fn clone(&self) -> Mark

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Mark

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

Formats the value using the given formatter.

impl PartialEq<Mark> for Mark

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

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

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

This method tests for !=.

impl Serialize for Mark

fn serialize<__S>(
    &self,
    __serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl<'de> Deserialize<'de> for Mark

fn deserialize<__D>(
    __deserializer: __D
) -> Result<Mark, <__D as Deserializer<'de>>::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.