Enum Origin 

pub enum Origin {
    Source,
    Expansion(Arc<Expansion>),
}

Where a preprocessed token came from.

Variants

Source

The token was written where Token::range says it was.

Expansion(Arc<Expansion>)

The token came out of a macro’s replacement list; Token::range is the range of the invocation.

Implementations

impl Origin

pub fn expansion(&self) -> Option<&Arc<Expansion>>

The expansion this token came out of, if any.

Trait Implementations

impl Clone for Origin

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Origin

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

Formats the value using the given formatter.

impl Default for Origin

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Origin

impl PartialEq for Origin

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Origin