Struct syntex_syntax::ext::hygiene::SyntaxContext

pub struct SyntaxContext(pub u32);

A SyntaxContext represents a chain of macro expansions (represented by marks).

Methods

impl SyntaxContext

fn empty() -> Self

fn data(self) -> SyntaxContextData

fn apply_mark(self, mark: Mark) -> SyntaxContext

Extend a syntax context with a given mark

fn source(self) -> (Self, Mark)

If ident is macro expanded, return the source ident from the macro definition and the mark of the expansion that created the macro definition.

Trait Implementations

impl Default for SyntaxContext

fn default() -> SyntaxContext

Returns the "default value" for a type.

impl Decodable for SyntaxContext

fn decode<__D: Decoder>(__arg_0: &mut __D) -> Result<SyntaxContext, __D::Error>

impl Encodable for SyntaxContext

fn encode<__S: Encoder>(&self, __arg_0: &mut __S) -> Result<(), __S::Error>

impl Hash for SyntaxContext

fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

Feeds this value into the state given, updating the hasher as necessary.

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

Feeds a slice of this type into the state provided.

impl Eq for SyntaxContext

impl PartialEq for SyntaxContext

fn eq(&self, __arg_0: &SyntaxContext) -> bool

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

fn ne(&self, __arg_0: &SyntaxContext) -> bool

This method tests for !=.

impl Copy for SyntaxContext

impl Clone for SyntaxContext

fn clone(&self) -> SyntaxContext

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SyntaxContext

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

Formats the value using the given formatter.