From b36b8970ccefa7c98f827caebf6dda71ff3d99c4 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Thu, 10 Oct 2019 17:16:02 +0300
Subject: simplify a bit

---
 crates/ra_hir/src/nameres/collector.rs | 13 +++++--------
 crates/ra_hir/src/nameres/raw.rs       | 10 ++++++++--
 2 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/crates/ra_hir/src/nameres/collector.rs b/crates/ra_hir/src/nameres/collector.rs
index 88aee7437..5dacdb0d9 100644
--- a/crates/ra_hir/src/nameres/collector.rs
+++ b/crates/ra_hir/src/nameres/collector.rs
@@ -7,6 +7,7 @@ use rustc_hash::FxHashMap;
 use test_utils::tested_by;
 
 use crate::{
+    attr::Attr,
     db::DefDatabase,
     ids::{AstItemDef, LocationCtx, MacroCallId, MacroCallLoc, MacroDefId, MacroFileKind},
     name::MACRO_RULES,
@@ -532,7 +533,7 @@ where
         // `#[macro_use] extern crate` is hoisted to imports macros before collecting
         // any other items.
         for item in items {
-            if self.is_cfg_enabled(&item.attrs) {
+            if self.is_cfg_enabled(item.attrs()) {
                 if let raw::RawItemKind::Import(import_id) = item.kind {
                     let import = self.raw_items[import_id].clone();
                     if import.is_extern_crate && import.is_macro_use {
@@ -543,7 +544,7 @@ where
         }
 
         for item in items {
-            if self.is_cfg_enabled(&item.attrs) {
+            if self.is_cfg_enabled(item.attrs()) {
                 match item.kind {
                     raw::RawItemKind::Module(m) => self.collect_module(&self.raw_items[m]),
                     raw::RawItemKind::Import(import_id) => self
@@ -709,12 +710,8 @@ where
         }
     }
 
-    fn is_cfg_enabled(&self, attrs: &raw::Attrs) -> bool {
-        attrs.as_ref().map_or(true, |attrs| {
-            attrs
-                .iter()
-                .all(|attr| attr.is_cfg_enabled(&self.def_collector.cfg_options) != Some(false))
-        })
+    fn is_cfg_enabled(&self, attrs: &[Attr]) -> bool {
+        attrs.iter().all(|attr| attr.is_cfg_enabled(&self.def_collector.cfg_options) != Some(false))
     }
 }
 
diff --git a/crates/ra_hir/src/nameres/raw.rs b/crates/ra_hir/src/nameres/raw.rs
index 623b343c4..5f93f920f 100644
--- a/crates/ra_hir/src/nameres/raw.rs
+++ b/crates/ra_hir/src/nameres/raw.rs
@@ -121,14 +121,20 @@ impl Index<Macro> for RawItems {
 }
 
 // Avoid heap allocation on items without attributes.
-pub(super) type Attrs = Option<Arc<[Attr]>>;
+type Attrs = Option<Arc<[Attr]>>;
 
 #[derive(Debug, PartialEq, Eq, Clone)]
 pub(super) struct RawItem {
-    pub(super) attrs: Attrs,
+    attrs: Attrs,
     pub(super) kind: RawItemKind,
 }
 
+impl RawItem {
+    pub(super) fn attrs(&self) -> &[Attr] {
+        self.attrs.as_ref().map_or(&[], |it| &*it)
+    }
+}
+
 #[derive(Debug, PartialEq, Eq, Clone, Copy)]
 pub(super) enum RawItemKind {
     Module(Module),
-- 
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