Struct rustc_resolve::ModuleData

pub 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,
}

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.

Fields

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

Implementations

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

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

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

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

pub 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.

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: 240 bytes