Enum rustc_resolve::Scope[−][src]

pub(crate) enum Scope<'a> {
    DeriveHelpers(ExpnId),
    DeriveHelpersCompat,
    MacroRules(PtrKey<'a, Cell<MacroRulesScope<'a>>>),
    CrateRoot,
    Module(&'a ModuleData<'a>, Option<NodeId>),
    RegisteredAttrs,
    MacroUsePrelude,
    BuiltinAttrs,
    ExternPrelude,
    ToolPrelude,
    StdLibPrelude,
    BuiltinTypes,
}

Expand description

A specific scope in which a name can be looked up. This enum is currently used only for early resolution (imports and macros), but not for late resolution yet.

Variants

DeriveHelpers(ExpnId)

DeriveHelpersCompat

MacroRules(PtrKey<'a, Cell<MacroRulesScope<'a>>>)

CrateRoot

Module(&'a ModuleData<'a>, Option<NodeId>)

RegisteredAttrs

MacroUsePrelude

BuiltinAttrs

ExternPrelude

ToolPrelude

StdLibPrelude

BuiltinTypes

Trait Implementations

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impl<'a> Clone for Scope<'a>

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fn clone(&self) -> Scope<'a>

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl<'a> Copy for Scope<'a>

Auto Trait Implementations

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

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

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

impl<'a> Unpin for Scope<'a>

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

Blanket Implementations

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

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
    T: ?Sized,

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pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
    T: ?Sized,

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pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

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pub fn from(t: T) -> T

Performs the conversion.

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impl<T, U> Into<U> for T where
    U: From<T>,

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pub fn into(self) -> U

Performs the conversion.

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impl<T> ToOwned for T where
    T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

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

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

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

recently added

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

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impl<T, U> TryFrom<U> for T where
    U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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impl<T, U> TryInto<U> for T where
    U: TryFrom<T>,

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

The type returned in the event of a conversion error.

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

Performs the conversion.

Layout

Note: Most layout information is completely unstable and may be different between compiler versions and platforms. 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: 16 bytes