Enum rustc_expand::base::SyntaxExtensionKind[−][src]

pub enum SyntaxExtensionKind {
    Bang(Box<dyn ProcMacro + Sync + Send>),
    LegacyBang(Box<dyn TTMacroExpander + Sync + Send>),
    Attr(Box<dyn AttrProcMacro + Sync + Send>),
    LegacyAttr(Box<dyn MultiItemModifier + Sync + Send>),
    NonMacroAttr {
        mark_used: bool,
    },
    Derive(Box<dyn MultiItemModifier + Sync + Send>),
    LegacyDerive(Box<dyn MultiItemModifier + Sync + Send>),
}
Expand description

A syntax extension kind.

Variants

Bang(Box<dyn ProcMacro + Sync + Send>)
Expand description

A token-based function-like macro.

LegacyBang(Box<dyn TTMacroExpander + Sync + Send>)
Expand description

An AST-based function-like macro.

Attr(Box<dyn AttrProcMacro + Sync + Send>)
Expand description

A token-based attribute macro.

LegacyAttr(Box<dyn MultiItemModifier + Sync + Send>)
Expand description

An AST-based attribute macro.

NonMacroAttr
Expand description

A trivial attribute “macro” that does nothing, only keeps the attribute and marks it as inert, thus making it ineligible for further expansion.

Show fields

Fields of NonMacroAttr

mark_used: bool
Expand description

Suppresses the unused_attributes lint for this attribute.

Derive(Box<dyn MultiItemModifier + Sync + Send>)
Expand description

A token-based derive macro.

LegacyDerive(Box<dyn MultiItemModifier + Sync + Send>)
Expand description

An AST-based derive macro.

Auto Trait Implementations

impl !RefUnwindSafe for SyntaxExtensionKind

impl !Send for SyntaxExtensionKind

impl !Sync for SyntaxExtensionKind

impl Unpin for SyntaxExtensionKind

impl !UnwindSafe for SyntaxExtensionKind

Blanket Implementations

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

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

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

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

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

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

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

pub fn from(t: T) -> T[src]

Performs the conversion.

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

pub fn into(self) -> U[src]

Performs the conversion.

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.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

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.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.