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Add ExternCrateDecl to HIR

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This commit is contained in:
Lukas Wirth 2023-08-02 11:52:55 +02:00
parent 151c750dac
commit bcff166b3a
39 changed files with 585 additions and 167 deletions
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65
crates/hir/src/lib.rs
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@ -48,14 +48,15 @@ use hir_def::{
layout::{self, ReprOptions, TargetDataLayout},
macro_id_to_def_id,
nameres::{self, diagnostics::DefDiagnostic},
path::ImportAlias,
per_ns::PerNs,
resolver::{HasResolver, Resolver},
src::HasSource as _,
AssocItemId, AssocItemLoc, AttrDefId, ConstId, ConstParamId, DefWithBodyId, EnumId,
EnumVariantId, FunctionId, GenericDefId, HasModule, ImplId, InTypeConstId, ItemContainerId,
LifetimeParamId, LocalEnumVariantId, LocalFieldId, Lookup, MacroExpander, MacroId, ModuleId,
StaticId, StructId, TraitAliasId, TraitId, TypeAliasId, TypeOrConstParamId, TypeParamId,
UnionId,
AssocItemId, AssocItemLoc, AttrDefId, ConstId, ConstParamId, CrateRootModuleId, DefWithBodyId,
EnumId, EnumVariantId, ExternCrateId, FunctionId, GenericDefId, HasModule, ImplId,
InTypeConstId, ItemContainerId, LifetimeParamId, LocalEnumVariantId, LocalFieldId, Lookup,
MacroExpander, MacroId, ModuleId, StaticId, StructId, TraitAliasId, TraitId, TypeAliasId,
TypeOrConstParamId, TypeParamId, UnionId,
};
use hir_expand::{name::name, MacroCallKind};
use hir_ty::{
@ -200,9 +201,8 @@ impl Crate {
db.crate_graph().transitive_rev_deps(self.id).map(|id| Crate { id })
}
pub fn root_module(self, db: &dyn HirDatabase) -> Module {
let def_map = db.crate_def_map(self.id);
Module { id: def_map.crate_root().into() }
pub fn root_module(self) -> Module {
Module { id: CrateRootModuleId::from(self.id).into() }
}
pub fn modules(self, db: &dyn HirDatabase) -> Vec<Module> {
@ -247,7 +247,7 @@ impl Crate {
/// Try to get the root URL of the documentation of a crate.
pub fn get_html_root_url(self: &Crate, db: &dyn HirDatabase) -> Option<String> {
// Look for #![doc(html_root_url = "...")]
let attrs = db.attrs(AttrDefId::ModuleId(self.root_module(db).into()));
let attrs = db.attrs(AttrDefId::ModuleId(self.root_module().into()));
let doc_url = attrs.by_key("doc").find_string_value_in_tt("html_root_url");
doc_url.map(|s| s.trim_matches('"').trim_end_matches('/').to_owned() + "/")
}
@ -2128,6 +2128,47 @@ impl HasVisibility for Function {
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub struct ExternCrateDecl {
pub(crate) id: ExternCrateId,
}
impl ExternCrateDecl {
pub fn module(self, db: &dyn HirDatabase) -> Module {
self.id.module(db.upcast()).into()
}
pub fn resolved_crate(self, db: &dyn HirDatabase) -> Crate {
db.extern_crate_decl_data(self.id).crate_id.into()
}
pub fn name(self, db: &dyn HirDatabase) -> Name {
db.extern_crate_decl_data(self.id).name.clone()
}
pub fn alias(self, db: &dyn HirDatabase) -> Option<ImportAlias> {
db.extern_crate_decl_data(self.id).alias.clone()
}
/// Returns the name under which this crate is made accessible, taking `_` into account.
pub fn alias_or_name(self, db: &dyn HirDatabase) -> Option<Name> {
let extern_crate_decl_data = db.extern_crate_decl_data(self.id);
match &extern_crate_decl_data.alias {
Some(ImportAlias::Underscore) => None,
Some(ImportAlias::Alias(alias)) => Some(alias.clone()),
None => Some(extern_crate_decl_data.name.clone()),
}
}
}
impl HasVisibility for ExternCrateDecl {
fn visibility(&self, db: &dyn HirDatabase) -> Visibility {
db.extern_crate_decl_data(self.id)
.visibility
.resolve(db.upcast(), &self.id.resolver(db.upcast()))
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub struct InTypeConst {
pub(crate) id: InTypeConstId,
@ -4715,6 +4756,12 @@ pub trait HasContainer {
fn container(&self, db: &dyn HirDatabase) -> ItemContainer;
}
impl HasContainer for ExternCrateDecl {
fn container(&self, db: &dyn HirDatabase) -> ItemContainer {
container_id_to_hir(self.id.lookup(db.upcast()).container.into())
}
}
impl HasContainer for Module {
fn container(&self, db: &dyn HirDatabase) -> ItemContainer {
// FIXME: handle block expressions as modules (their parent is in a different DefMap)