Struct rustc_resolve::resolve_imports::ImportDirective

pub struct ImportDirective<'a> {
    pub id: NodeId,
    pub root_id: NodeId,
    pub span: Span,
    pub root_span: Span,
    pub parent: &'a ModuleData<'a>,
    pub module_path: Vec<Ident>,
    pub imported_module: Cell<Option<ModuleOrUniformRoot<'a>>>,
    pub subclass: ImportDirectiveSubclass<'a>,
    pub vis: Cell<Visibility>,
    pub expansion: Mark,
    pub used: Cell<bool>,
    pub is_uniform_paths_canary: bool,
}

🔬 This is a nightly-only experimental API. (rustc_private)

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One import directive.

Fields

id: NodeId

🔬 This is a nightly-only experimental API. (rustc_private)

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The id of the extern crate, UseTree etc that imported this ImportDirective.

In the case where the ImportDirective was expanded from a "nested" use tree, this id is the id of the leaf tree. For example:

use foo::bar::{a, b}

If this is the import directive for foo::bar::a, we would have the id of the UseTree for a in this field.

root_id: NodeId

🔬 This is a nightly-only experimental API. (rustc_private)

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The id of the "root" use-kind -- this is always the same as id except in the case of "nested" use trees, in which case it will be the id of the root use tree. e.g., in the example from id, this would be the id of the use foo::bar UseTree node.

span: Span

🔬 This is a nightly-only experimental API. (rustc_private)

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Span of this use tree.

root_span: Span

🔬 This is a nightly-only experimental API. (rustc_private)

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Span of the root use tree (see root_id).

parent: &'a ModuleData<'a>

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module_path: Vec<Ident>

🔬 This is a nightly-only experimental API. (rustc_private)

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imported_module: Cell<Option<ModuleOrUniformRoot<'a>>>

🔬 This is a nightly-only experimental API. (rustc_private)

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The resolution of module_path.

subclass: ImportDirectiveSubclass<'a>

🔬 This is a nightly-only experimental API. (rustc_private)

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vis: Cell<Visibility>

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

expansion: Mark

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

used: Cell<bool>

🔬 This is a nightly-only experimental API. (rustc_private)

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is_uniform_paths_canary: bool

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Whether this import is a "canary" for the uniform_paths feature, i.e. use x::...; results in an use self::x as _; canary. This flag affects diagnostics: an error is reported if and only if the import resolves successfully and an external crate with the same name (x above) also exists; any resolution failures are ignored.

Methods

impl<'a> ImportDirective<'a>

pub fn is_glob(&self) -> bool

🔬 This is a nightly-only experimental API. (rustc_private)

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pub(crate) fn crate_lint(&self) -> CrateLint

🔬 This is a nightly-only experimental API. (rustc_private)

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Trait Implementations

impl<'a> Debug for ImportDirective<'a>

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

Formats the value using the given formatter.

impl<'a> Clone for ImportDirective<'a>

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

Returns a copy of the value.

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

Performs copy-assignment from source.