bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/hir-def/src/lang_item.rs')
-rw-r--r--crates/hir-def/src/lang_item.rs21
1 files changed, 14 insertions, 7 deletions
diff --git a/crates/hir-def/src/lang_item.rs b/crates/hir-def/src/lang_item.rs
index 4096e0a382..818054188b 100644
--- a/crates/hir-def/src/lang_item.rs
+++ b/crates/hir-def/src/lang_item.rs
@@ -8,8 +8,8 @@ use rustc_hash::FxHashMap;
use syntax::SmolStr;
use crate::{
- db::DefDatabase, AdtId, AssocItemId, AttrDefId, CrateId, EnumId, EnumVariantId, FunctionId,
- ImplId, ModuleDefId, StaticId, StructId, TraitId, TypeAliasId, UnionId,
+ db::DefDatabase, path::Path, AdtId, AssocItemId, AttrDefId, CrateId, EnumId, EnumVariantId,
+ FunctionId, ImplId, ModuleDefId, StaticId, StructId, TraitId, TypeAliasId, UnionId,
};
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
@@ -221,11 +221,6 @@ macro_rules! language_item_table {
}
/// Opposite of [`LangItem::name`]
- pub fn from_name(name: &hir_expand::name::Name) -> Option<Self> {
- Self::from_str(name.as_str()?)
- }
-
- /// Opposite of [`LangItem::name`]
pub fn from_str(name: &str) -> Option<Self> {
match name {
$( stringify!($name) => Some(LangItem::$variant), )*
@@ -236,6 +231,18 @@ macro_rules! language_item_table {
}
}
+impl LangItem {
+ /// Opposite of [`LangItem::name`]
+ pub fn from_name(name: &hir_expand::name::Name) -> Option<Self> {
+ Self::from_str(name.as_str()?)
+ }
+
+ pub fn path(&self, db: &dyn DefDatabase, start_crate: CrateId) -> Option<Path> {
+ let t = db.lang_item(start_crate, *self)?;
+ Some(Path::LangItem(t))
+ }
+}
+
language_item_table! {
// Variant name, Name, Getter method name, Target Generic requirements;
Sized, sized, sized_trait, Target::Trait, GenericRequirement::Exact(0);