Enum rustc_resolve::Scope

source ·

pub(crate) enum Scope<'a> {
    DeriveHelpers(LocalExpnId),
    DeriveHelpersCompat,
    MacroRules(Interned<'a, Cell<MacroRulesScope<'a>>>),
    CrateRoot,
    Module(&'a ModuleData<'a>, Option<NodeId>),
    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(Interned<'a, Cell<MacroRulesScope<'a>>>)`

`CrateRoot`

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

`MacroUsePrelude`

`BuiltinAttrs`

`ExternPrelude`

`ToolPrelude`

`StdLibPrelude`

`BuiltinTypes`

Trait Implementations

source

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

source

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

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

source

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

source

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

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source

impl<T> ToOwned for Twhere
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

source

fn to_owned(&self) -> T

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

source

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

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

source

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

source

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

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
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(Interned<'a, Cell<MacroRulesScope<'a>>>)

CrateRoot

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

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<'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

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

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

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

Layout

`DeriveHelpers(LocalExpnId)`

`DeriveHelpersCompat`

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

`CrateRoot`

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

`MacroUsePrelude`

`BuiltinAttrs`

`ExternPrelude`

`ToolPrelude`

`StdLibPrelude`

`BuiltinTypes`

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

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

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

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

impl<T> ToOwned for Twhere
T: Clone,

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

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