From e98d8cd255ab5c2fee873a58af6c2c3ad561dab4 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Sun, 2 Sep 2018 16:36:03 +0300
Subject: nail down runnables

---
 crates/server/src/server_world.rs | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'crates/server/src/server_world.rs')

diff --git a/crates/server/src/server_world.rs b/crates/server/src/server_world.rs
index 4d5c50428..f78b56cf8 100644
--- a/crates/server/src/server_world.rs
+++ b/crates/server/src/server_world.rs
@@ -6,7 +6,7 @@ use std::{
 };
 
 use languageserver_types::Url;
-use libanalysis::{FileId, AnalysisHost, Analysis};
+use libanalysis::{FileId, AnalysisHost, Analysis, CrateGraph, CrateId};
 
 use {
     Result,
@@ -95,7 +95,22 @@ impl ServerWorldState {
         Ok(file_id)
     }
     pub fn set_workspaces(&mut self, ws: Vec<CargoWorkspace>) {
+        let mut crate_roots = HashMap::new();
+        ws.iter()
+          .flat_map(|ws| {
+              ws.packages()
+                .flat_map(move |pkg| pkg.targets(ws))
+                .map(move |tgt| tgt.root(ws))
+          })
+          .for_each(|root| {
+              if let Some(file_id) = self.path_map.get_id(root) {
+                  let crate_id = CrateId(crate_roots.len() as u32);
+                  crate_roots.insert(crate_id, file_id);
+              }
+          });
+        let crate_graph = CrateGraph { crate_roots };
         self.workspaces = Arc::new(ws);
+        self.analysis_host.set_crate_graph(crate_graph);
     }
     pub fn snapshot(&self) -> ServerWorld {
         ServerWorld {
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