From 8ac3d1f9aa892fc891b69c7d8d00d39b9371d246 Mon Sep 17 00:00:00 2001
From: Marco Groppo <marco.groppo@gmail.com>
Date: Thu, 18 Apr 2019 20:34:10 +0200
Subject: lang_item_lookup is now a salsa query.

---
 crates/ra_hir/src/lang_item.rs | 48 +++++++++++++++++++++---------------------
 1 file changed, 24 insertions(+), 24 deletions(-)

(limited to 'crates/ra_hir/src/lang_item.rs')

diff --git a/crates/ra_hir/src/lang_item.rs b/crates/ra_hir/src/lang_item.rs
index a25d419e7..5f3f91cba 100644
--- a/crates/ra_hir/src/lang_item.rs
+++ b/crates/ra_hir/src/lang_item.rs
@@ -40,7 +40,7 @@ impl LangItems {
         self.items.get(item)
     }
 
-    /// Salsa query. This will query a specific crate for lang items.
+    /// Salsa query. This will look for lang items in a specific crate.
     pub(crate) fn lang_items_query(db: &impl DefDatabase, krate: Crate) -> Arc<LangItems> {
         let mut lang_items = LangItems { items: FxHashMap::default() };
 
@@ -51,6 +51,29 @@ impl LangItems {
         Arc::new(lang_items)
     }
 
+    /// Salsa query. Look for a lang item, starting from the specified crate and recursively
+    /// traversing its dependencies.
+    pub(crate) fn lang_item_query(
+        db: &impl DefDatabase,
+        start_crate: Crate,
+        item: SmolStr,
+    ) -> Option<LangItemTarget> {
+        let lang_items = db.lang_items(start_crate);
+        let start_crate_target = lang_items.items.get(&item);
+        if let Some(target) = start_crate_target {
+            Some(*target)
+        } else {
+            for dep in start_crate.dependencies(db) {
+                let dep_crate = dep.krate;
+                let dep_target = db.lang_item(dep_crate, item.clone());
+                if dep_target.is_some() {
+                    return dep_target;
+                }
+            }
+            None
+        }
+    }
+
     fn collect_lang_items_recursive(&mut self, db: &impl DefDatabase, module: &Module) {
         // Look for impl targets
         let (impl_blocks, source_map) = db.impls_in_module_with_source_map(module.clone());
@@ -77,26 +100,3 @@ impl LangItems {
         }
     }
 }
-
-/// Look for a lang item, starting from the specified crate and recursively traversing its
-/// dependencies.
-pub(crate) fn lang_item_lookup(
-    db: &impl DefDatabase,
-    start_krate: Crate,
-    item: &str,
-) -> Option<LangItemTarget> {
-    let lang_items = db.lang_items(start_krate);
-    let start_krate_target = lang_items.items.get(item);
-    if start_krate_target.is_some() {
-        start_krate_target.map(|t| *t)
-    } else {
-        for dep in start_krate.dependencies(db) {
-            let dep_krate = dep.krate;
-            let dep_target = lang_item_lookup(db, dep_krate, item);
-            if dep_target.is_some() {
-                return dep_target;
-            }
-        }
-        None
-    }
-}
-- 
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