Struct AttributeDecl

pub struct AttributeDecl {
    pub hash_kind: AttributeHashKind,
    pub attribute: SquareBrackets<Punctuated<Attribute, CommaToken>>,
}

An attribute declaration. Attribute declaration can potentially have an arbitrary number of Attributes. Attributes can potentially have any number of AttributeArgs. Each AttributeArg can have a value assigned.

E.g.:

#[attribute]
#[attribute_1, attribute_2]
#[attribute()]
#[attribute(arg)]
#[attribute(arg_1, arg_2)]
#[attribute(arg_1 = "value", arg_2 = true)]
#[attribute_1, attribute_2(arg_1), attribute_3(arg_1, arg_2 = true)]

AttributeDecls can be inner or outer, as explained in AttributeHashKind.

Fields

hash_kind: AttributeHashKind

attribute: SquareBrackets<Punctuated<Attribute, CommaToken>>

Implementations

impl AttributeDecl

pub fn new_outer_doc_comment(span: Span, content_span: Span) -> Self

Creates the doc-comment AttributeDecl for a single line of an outer comment. E.g.:

/// This is an outer comment.

The span is the overall span: /// This is an outer comment.. The content_span is the span of the content, without the leading ///: This is an outer comment..

pub fn new_inner_doc_comment(span: Span, content_span: Span) -> Self

Creates the doc-comment AttributeDecl for a single line of an inner comment. E.g.:

//! This is an inner comment.

The span is the overall span: //! This is an inner comment.. The content_span is the span of the content, without the leading //!: This is an inner comment..

pub fn is_doc_comment(&self) -> bool

self is a doc comment, either an inner (//!) or outer (///).

pub fn is_inner(&self) -> bool

Trait Implementations

impl Clone for AttributeDecl

fn clone(&self) -> AttributeDecl

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AttributeDecl

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

Formats the value using the given formatter.

impl Serialize for AttributeDecl

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Spanned for AttributeDecl

fn span(&self) -> Span