Struct AttrReq 

pub struct AttrReq {
    pub arg_req: HashMap<String, ArgValueReq>,
    pub path_req: ListReq<Path>,
    pub char_req: ListReq<LitChar>,
    pub integer_req: ListReq<LitInt>,
    pub float_req: ListReq<LitFloat>,
    pub string_req: ValueReq,
    pub bytes_req: ValueReq,
    pub bool_req: ValueReq,
}

Structure requirements for parametrized attribute

Fields

arg_req: HashMap<String, ArgValueReq>

Specifies all named arguments and which requirements they must meet

path_req: ListReq<Path>

Specifies whether path arguments are allowed and with which requirements.

char_req: ListReq<LitChar>

Whether integer literals are allowed as an attribute argument and, if yes, with which requirements

integer_req: ListReq<LitInt>

Whether integer literals are allowed as an attribute argument and, if yes, with which requirements

float_req: ListReq<LitFloat>

Whether integer literals are allowed as an attribute argument and, if yes, with which requirements

string_req: ValueReq

Whether string literal is allowed as an attribute argument and, if yes, with which requirements

bytes_req: ValueReq

Whether byte string literal is allowed as an attribute argument and, if yes, with which requirements

bool_req: ValueReq

Whether boolean literal is allowed as an attribute argument and, if yes, with which requirements

Implementations

impl AttrReq

pub fn with(args: HashMap<&str, ArgValueReq>) -> AttrReq

Constructor creating AttrReq accepting only name-value arguments with the provided parameters

Trait Implementations

impl Clone for AttrReq

fn clone(&self) -> AttrReq

Returns a duplicate of the value.

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

Performs copy-assignment from source.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 1056 bytes