From 94b3b32c9882ad206df4f11f2f8de0be70a615f4 Mon Sep 17 00:00:00 2001
From: Jonas Schievink <jonasschievink@gmail.com>
Date: Thu, 18 Mar 2021 01:28:40 +0100
Subject: Support `#[cfg]` on all associated items

---
 crates/hir_def/src/data.rs        | 10 +++++-----
 crates/hir_ty/src/tests/simple.rs | 19 +++++++++++++++++++
 2 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/crates/hir_def/src/data.rs b/crates/hir_def/src/data.rs
index e976e419e..2c70b3bc0 100644
--- a/crates/hir_def/src/data.rs
+++ b/crates/hir_def/src/data.rs
@@ -256,17 +256,17 @@ fn collect_items(
 
     let mut items = Vec::new();
     for item in assoc_items {
+        let attrs = item_tree.attrs(db, module.krate, ModItem::from(item).into());
+        if !attrs.is_cfg_enabled(&cfg_options) {
+            continue;
+        }
+
         match item {
             AssocItem::Function(id) => {
                 let item = &item_tree[id];
-                let attrs = item_tree.attrs(db, module.krate, ModItem::from(id).into());
-                if !attrs.is_cfg_enabled(&cfg_options) {
-                    continue;
-                }
                 let def = FunctionLoc { container, id: ItemTreeId::new(file_id, id) }.intern(db);
                 items.push((item.name.clone(), def.into()));
             }
-            // FIXME: cfg?
             AssocItem::Const(id) => {
                 let item = &item_tree[id];
                 let name = match item.name.clone() {
diff --git a/crates/hir_ty/src/tests/simple.rs b/crates/hir_ty/src/tests/simple.rs
index f5069eba5..bcc43ed70 100644
--- a/crates/hir_ty/src/tests/simple.rs
+++ b/crates/hir_ty/src/tests/simple.rs
@@ -2545,3 +2545,22 @@ fn test() {
         "#]],
     )
 }
+
+#[test]
+fn cfgd_out_assoc_items() {
+    check_types(
+        r#"
+struct S;
+
+impl S {
+    #[cfg(FALSE)]
+    const C: S = S;
+}
+
+fn f() {
+    S::C;
+  //^^^^ {unknown}
+}
+    "#,
+    )
+}
-- 
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