Struct amplify_syn::AttrReq[][src]

pub struct AttrReq {
    pub arg_req: HashMap<String, ArgReq>,
    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, ArgReq>

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[src]

pub fn with(args: HashMap<&str, ArgReq>) -> AttrReq[src]

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

Trait Implementations

impl Clone for AttrReq[src]

Auto Trait Implementations

impl RefUnwindSafe for AttrReq

impl !Send for AttrReq

impl !Sync for AttrReq

impl Unpin for AttrReq

impl UnwindSafe for AttrReq

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T> ToOwned for T where
    T: Clone
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type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.