Enum rustc_resolve::Scope

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

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

MacroUsePrelude

BuiltinAttrs

ExternPrelude

ToolPrelude

StdLibPrelude

BuiltinTypes

Trait Implementations

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

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Scope<'a>

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

Formats the value using the given formatter.

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

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