[][src]Enum rustc_ast::ast::MacArgs

pub enum MacArgs {
    Empty,
    Delimited(DelimSpanMacDelimiterTokenStream),
    Eq(SpanTokenStream),
}

Arguments passed to an attribute or a function-like macro.

Variants

Empty

No arguments - #[attr].

Delimited(DelimSpanMacDelimiterTokenStream)

Delimited arguments - #[attr()/[]/{}] or mac!()/[]/{}.

Eq(SpanTokenStream)

Arguments of a key-value attribute - #[attr = "value"].

Implementations

impl MacArgs[src]

pub fn delim(&self) -> DelimToken[src]

pub fn span(&self) -> Option<Span>[src]

pub fn inner_tokens(&self) -> TokenStream[src]

Tokens inside the delimiters or after =. Proc macros see these tokens, for example.

pub fn outer_tokens(&self) -> TokenStream[src]

Tokens together with the delimiters or =. Use of this method generally means that something suboptimal or hacky is happening.

pub fn need_semicolon(&self) -> bool[src]

Whether a macro with these arguments needs a semicolon when used as a standalone item or statement.

Trait Implementations

impl Clone for MacArgs[src]

impl Debug for MacArgs[src]

impl Decodable for MacArgs[src]

impl Encodable for MacArgs[src]

impl<__CTX> HashStable<__CTX> for MacArgs where
    __CTX: HashStableContext
[src]

Auto Trait Implementations

impl !RefUnwindSafe for MacArgs

impl !Send for MacArgs

impl !Sync for MacArgs

impl Unpin for MacArgs

impl !UnwindSafe for MacArgs

Blanket Implementations

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

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> Decodable for T where
    T: UseSpecializedDecodable
[src]

impl<T> Encodable for T where
    T: UseSpecializedEncodable + ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.