Struct rustc_ap_rustc_ast::ast::Param

pub struct Param {
    pub attrs: AttrVec,
    pub ty: P<Ty>,
    pub pat: P<Pat>,
    pub id: NodeId,
    pub span: Span,
    pub is_placeholder: bool,
}

A parameter in a function header.

E.g., bar: usize as in fn foo(bar: usize).

Fields

attrs: AttrVec

ty: P<Ty>

pat: P<Pat>

id: NodeId

span: Span

is_placeholder: bool

Implementations

impl Param

pub fn to_self(&self) -> Option<ExplicitSelf>

Attempts to cast parameter to ExplicitSelf.

pub fn is_self(&self) -> bool

Returns true if parameter is self.

pub fn from_self(
    attrs: AttrVec,
    eself: ExplicitSelf,
    eself_ident: Ident
) -> Param

Builds a Param object from ExplicitSelf.

Trait Implementations

impl AstLike for Param

const SUPPORTS_CUSTOM_INNER_ATTRS: bool

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

fn attrs(&self) -> &[Attribute]

fn visit_attrs(&mut self, f: impl FnOnce(&mut Vec<Attribute>))

fn tokens_mut(&mut self) -> Option<&mut Option<LazyTokenStream>>

impl Clone for Param

fn clone(&self) -> Param

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Param

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

Formats the value using the given formatter.

impl<__D: Decoder> Decodable<__D> for Param

fn decode(__decoder: &mut __D) -> Result<Self, <__D as Decoder>::Error>

impl<__E: Encoder> Encodable<__E> for Param

fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>