Struct Attr 

pub struct Attr {
    pub path: String,
    pub args: Vec<Arg>,
    pub span: Span,
}

An @attr or @@attr, with its arguments.

Fields

path: String

Dotted path as written, e.g. id, db.VarChar, relation.

args: Vec<Arg>

Arguments, in source order.

span: Span

Source location of the attribute.

Implementations

impl Attr

pub fn named(&self, name: &str) -> Option<&Value>

The named argument with this name, if given.

pub fn positional(&self) -> impl Iterator<Item = &Value>

Positional arguments, in source order.

pub fn first_positional(&self) -> Option<&Value>

The first positional argument, if any.

Trait Implementations

impl Clone for Attr

fn clone(&self) -> Attr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Attr

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

Formats the value using the given formatter.

impl PartialEq for Attr

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Attr