Attributes

Attributes, indicated by the [] symbols, allows attachment of metadata, annotations, or special instructions to various language constructs, such as types, fields, and functions.

Example

[foo("arg1", "arg2")]
pub type Foo {
    [bar("arg1", "arg2")]
    pub field Bar: i32;

    [baz("arg1", "arg2")]
    pub fn Baz() {
    }
}