bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/hir-def/src/nameres.rs')
-rw-r--r--crates/hir-def/src/nameres.rs27
1 files changed, 26 insertions, 1 deletions
diff --git a/crates/hir-def/src/nameres.rs b/crates/hir-def/src/nameres.rs
index 11601c683e..db45f6bed6 100644
--- a/crates/hir-def/src/nameres.rs
+++ b/crates/hir-def/src/nameres.rs
@@ -63,7 +63,7 @@ use base_db::CrateId;
use hir_expand::{
name::Name, proc_macro::ProcMacroKind, ErasedAstId, HirFileId, InFile, MacroCallId, MacroDefId,
};
-use intern::Symbol;
+use intern::{sym, Symbol};
use itertools::Itertools;
use la_arena::Arena;
use rustc_hash::{FxHashMap, FxHashSet};
@@ -139,6 +139,7 @@ pub struct DefMap {
/// Data that belongs to a crate which is shared between a crate's def map and all its block def maps.
#[derive(Clone, Debug, PartialEq, Eq)]
struct DefMapCrateData {
+ crate_name: Option<Symbol>,
/// The extern prelude which contains all root modules of external crates that are in scope.
extern_prelude: FxIndexMap<Name, (CrateRootModuleId, Option<ExternCrateId>)>,
@@ -164,6 +165,7 @@ struct DefMapCrateData {
impl DefMapCrateData {
fn new(edition: Edition) -> Self {
Self {
+ crate_name: None,
extern_prelude: FxIndexMap::default(),
exported_derives: FxHashMap::default(),
fn_proc_macro_mapping: FxHashMap::default(),
@@ -186,6 +188,7 @@ impl DefMapCrateData {
registered_attrs,
registered_tools,
unstable_features,
+ crate_name: _,
rustc_coherence_is_core: _,
no_core: _,
no_std: _,
@@ -443,6 +446,28 @@ impl DefMap {
self.modules.iter()
}
+ pub fn path_for_module(&self, db: &dyn DefDatabase, mut module: ModuleId) -> String {
+ debug_assert!(module.krate == self.krate && module.block == self.block.map(|b| b.block));
+ let mut parts = vec![];
+ if let Some(name) = module.name(db) {
+ parts.push(name.symbol().clone());
+ }
+ while let Some(parent) = module.def_map(db).containing_module(module.local_id) {
+ module = parent;
+ if let Some(name) = module.name(db) {
+ parts.push(name.symbol().clone());
+ }
+ if parts.len() > 10 {
+ break;
+ }
+ }
+ parts.push(match &self.data.crate_name {
+ Some(name) => name.clone(),
+ None => sym::crate_.clone(),
+ });
+ parts.into_iter().rev().format("::").to_string()
+ }
+
pub fn derive_helpers_in_scope(
&self,
id: AstId<ast::Adt>,