Struct swc_common::source_map::hygiene::Mark

pub struct Mark(_);

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

Implementations

impl Mark

pub fn new() -> Self

Shortcut for Mark::fresh(Mark::root())

pub fn fresh(parent: Mark) -> Self

pub const fn root() -> Self

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 parent(self) -> Mark

pub fn is_builtin(self) -> bool

pub fn set_is_builtin(self, is_builtin: bool)

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

pub fn least_ancestor(a: Mark, b: Mark) -> Mark

Computes a mark such that both input marks are descendants of (or equal to) the returned mark. That is, the following holds:

let la = least_ancestor(a, b);
assert!(a.is_descendant_of(la))
assert!(b.is_descendant_of(la))

Trait Implementations

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

Formats the value using the given formatter.

impl Default for Mark

fn default() -> Self

Returns the “default value” for a type.

impl Hash for Mark

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 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: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Mark

impl Eq for Mark

impl StructuralEq for Mark

impl StructuralPartialEq for Mark