Enum rustc_resolve::Scope

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pub(crate) enum Scope<'a> {
    DeriveHelpers(LocalExpnId),
    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(LocalExpnId)`

`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

impl<'a> !Send for Scope

impl<'a> !Sync for Scope

impl<'a> Unpin for Scope

impl<'a> !UnwindSafe for Scope

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 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)

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

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impl<T, U> TryFrom 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>::Error>

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

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

Performs the conversion.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. 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

Size for each variant:

DeriveHelpers: 4 bytes
DeriveHelpersCompat: 0 bytes
MacroRules: 12 bytes
CrateRoot: 0 bytes
Module: 12 bytes
RegisteredAttrs: 0 bytes
MacroUsePrelude: 0 bytes
BuiltinAttrs: 0 bytes
ExternPrelude: 0 bytes
ToolPrelude: 0 bytes
StdLibPrelude: 0 bytes
BuiltinTypes: 0 bytes

Enum rustc_resolve::Scope

Variants

DeriveHelpers(LocalExpnId)

DeriveHelpersCompat

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

CrateRoot

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

RegisteredAttrs

MacroUsePrelude

BuiltinAttrs

ExternPrelude

ToolPrelude

StdLibPrelude

BuiltinTypes

Trait Implementations

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

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

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

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

Auto Trait Implementations

impl<'a> !RefUnwindSafe for Scope

impl<'a> !Send for Scope

impl<'a> !Sync for Scope

impl<'a> Unpin for Scope

impl<'a> !UnwindSafe for Scope

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

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

type Owned = T

pub fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

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

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

Layout

`DeriveHelpers(LocalExpnId)`

`DeriveHelpersCompat`

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

`CrateRoot`

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

`RegisteredAttrs`

`MacroUsePrelude`

`BuiltinAttrs`

`ExternPrelude`

`ToolPrelude`

`StdLibPrelude`

`BuiltinTypes`

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

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

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

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

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

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

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