Enum rustc_resolve::macros::MacroRulesScope[−][src]

pub enum MacroRulesScope<'a> {
    Empty,
    Binding(&'a MacroRulesBinding<'a>),
    Invocation(ExpnId),
}
Expand description

The scope introduced by a macro_rules! macro. This starts at the macro’s definition and ends at the end of the macro’s parent module (named or unnamed), or even further if it escapes with #[macro_use]. Some macro invocations need to introduce macro_rules scopes too because they can potentially expand into macro definitions.

Variants

Empty
Expand description

Empty “root” scope at the crate start containing no names.

Binding(&'a MacroRulesBinding<'a>)
Expand description

The scope introduced by a macro_rules! macro definition.

Invocation(ExpnId)
Expand description

The scope introduced by a macro invocation that can potentially create a macro_rules! macro definition.

Trait Implementations

impl<'a> Clone for MacroRulesScope<'a>[src]

fn clone(&self) -> MacroRulesScope<'a>[src]

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl<'a> Debug for MacroRulesScope<'a>[src]

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

Formats the value using the given formatter. Read more

impl<'a> Copy for MacroRulesScope<'a>[src]

Auto Trait Implementations

impl<'a> !RefUnwindSafe for MacroRulesScope<'a>

impl<'a> !Send for MacroRulesScope<'a>

impl<'a> !Sync for MacroRulesScope<'a>

impl<'a> Unpin for MacroRulesScope<'a>

impl<'a> !UnwindSafe for MacroRulesScope<'a>

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> ToOwned for T where
    T: Clone, [src]

type Owned = T

The resulting type after obtaining ownership.

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

Creates owned data from borrowed data, usually by cloning. Read more

pub fn clone_into(&self, target: &mut T)[src]

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

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.