pub trait HasAttrs {
    const SUPPORTS_CUSTOM_INNER_ATTRS: bool;

    fn attrs(&self) -> &[Attribute];
    fn visit_attrs(&mut self, f: impl FnOnce(&mut Vec<Attribute>));
}
Expand description

A trait for AST nodes having (or not having) attributes.

Required Associated Constants

This is true if this HasAttrs might support ‘custom’ (proc-macro) inner attributes. Attributes like #![cfg] and #![cfg_attr] are not considered ‘custom’ attributes.

If this is false, then this HasAttrs definitely does not support ‘custom’ inner attributes, which enables some optimizations during token collection.

Required Methods

Implementations on Foreign Types

Implementors