pub(crate) struct ModuleData<'a> {
    pub(crate) parent: Option<&'a ModuleData<'a>>,
    pub(crate) kind: ModuleKind,
    pub(crate) lazy_resolutions: RefCell<FxIndexMap<BindingKey, &'a RefCell<NameResolution<'a>>>>,
    pub(crate) populate_on_access: Cell<bool>,
    pub(crate) unexpanded_invocations: RefCell<FxHashSet<LocalExpnId>>,
    pub(crate) no_implicit_prelude: bool,
    pub(crate) glob_importers: RefCell<Vec<&'a Import<'a>>>,
    pub(crate) globs: RefCell<Vec<&'a Import<'a>>>,
    pub(crate) traits: RefCell<Option<Box<[(Ident, &'a NameBinding<'a>)]>>>,
    pub(crate) span: Span,
    pub(crate) expansion: ExpnId,
Expand description

One node in the tree of modules.

Note that a “module” in resolve is broader than a mod that you declare in Rust code. It may be one of these:

  • mod
  • crate root (aka, top-level anonymous module)
  • enum
  • trait
  • curly-braced block with statements

You can use ModuleData::kind to determine the kind of module this is.


§parent: Option<&'a ModuleData<'a>>

The direct parent module (it may not be a mod, however).

§kind: ModuleKind

What kind of module this is, because this may not be a mod.

§lazy_resolutions: RefCell<FxIndexMap<BindingKey, &'a RefCell<NameResolution<'a>>>>

Mapping between names and their (possibly in-progress) resolutions in this module. Resolutions in modules from other crates are not populated until accessed.

§populate_on_access: Cell<bool>

True if this is a module from other crate that needs to be populated on access.

§unexpanded_invocations: RefCell<FxHashSet<LocalExpnId>>

Macro invocations that can expand into items in this module.

§no_implicit_prelude: bool

Whether #[no_implicit_prelude] is active.

§glob_importers: RefCell<Vec<&'a Import<'a>>>§globs: RefCell<Vec<&'a Import<'a>>>§traits: RefCell<Option<Box<[(Ident, &'a NameBinding<'a>)]>>>

Used to memoize the traits in this module for faster searches through all traits in scope.

§span: Span

Span of the module itself. Used for error reporting.

§expansion: ExpnId



impl<'a> ModuleData<'a>


pub(crate) fn new( parent: Option<&'a ModuleData<'a>>, kind: ModuleKind, expansion: ExpnId, span: Span, no_implicit_prelude: bool ) -> Self


pub(crate) fn for_each_child<'tcx, R, F>(&'a self, resolver: &mut R, f: F)where R: AsMut<Resolver<'a, 'tcx>>, F: FnMut(&mut R, Ident, Namespace, &'a NameBinding<'a>),


pub(crate) fn ensure_traits<'tcx, R>(&'a self, resolver: &mut R)where R: AsMut<Resolver<'a, 'tcx>>,

This modifies self in place. The traits will be stored in self.traits.


pub(crate) fn res(&self) -> Option<Res<NodeId>>


pub(crate) fn def_id(&self) -> DefId


pub(crate) fn opt_def_id(&self) -> Option<DefId>


pub(crate) fn is_normal(&self) -> bool


pub(crate) fn is_trait(&self) -> bool


pub(crate) fn nearest_item_scope(&'a self) -> &'a ModuleData<'a>


pub(crate) fn nearest_parent_mod(&self) -> DefId

The DefId of the nearest mod item ancestor (which may be this module). This may be the crate root.


pub(crate) fn is_ancestor_of(&self, other: &Self) -> bool

Trait Implementations§


impl<'a> Debug for ModuleData<'a>


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

Formats the value using the given formatter. Read more

Auto Trait Implementations§


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


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


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


impl<'a> Unpin for ModuleData<'a>


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

Blanket Implementations§


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


fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.


impl<T, U> Into<U> 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.


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

Performs the conversion.

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


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

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.


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: 240 bytes