Remove Option<...> from result of Crate::root_module

There doesn't seem to be any need for it, and removing it simplies
several paths of code that depend on it.

3 files changed, 7 insertions, 6 deletions

diff --git a/crates/ra_ide/src/goto_definition.rs b/crates/ra_ide/src/goto_definition.rs
index b44b6fe22..45389fd23 100644
--- a/crates/ra_ide/src/goto_definition.rs
+++ b/crates/ra_ide/src/goto_definition.rs
@@ -40,7 +40,7 @@ pub(crate) fn goto_definition(
                 reference_definition(&sema, &name_ref).to_vec()
             },
             ast::Name(name) => {
-                let def = classify_name(&sema, &name)?.definition(sema.db)?;
+                let def = classify_name(&sema, &name)?.definition(sema.db);
                 let nav = def.try_to_nav(sema.db)?;
                 vec![nav]
             },
@@ -82,7 +82,8 @@ pub(crate) fn reference_definition(
     name_ref: &ast::NameRef,
 ) -> ReferenceResult {
     let name_kind = classify_name_ref(sema, name_ref);
-    if let Some(def) = name_kind.and_then(|def| def.definition(sema.db)) {
+    if let Some(def) = name_kind {
+        let def = def.definition(sema.db);
         return match def.try_to_nav(sema.db) {
             Some(nav) => ReferenceResult::Exact(nav),
             None => ReferenceResult::Approximate(Vec::new()),
diff --git a/crates/ra_ide/src/hover.rs b/crates/ra_ide/src/hover.rs
index a632ea6a2..f6e493817 100644
--- a/crates/ra_ide/src/hover.rs
+++ b/crates/ra_ide/src/hover.rs
@@ -85,8 +85,8 @@ pub(crate) fn hover(db: &RootDatabase, position: FilePosition) -> Option<RangeIn
     let node = token.parent();
     let definition = match_ast! {
         match node {
-            ast::NameRef(name_ref) => classify_name_ref(&sema, &name_ref).and_then(|d| d.definition(sema.db)),
-            ast::Name(name) => classify_name(&sema, &name).and_then(|d| d.definition(sema.db)),
+            ast::NameRef(name_ref) => classify_name_ref(&sema, &name_ref).map(|d| d.definition(sema.db)),
+            ast::Name(name) => classify_name(&sema, &name).map(|d| d.definition(sema.db)),
             _ => None,
         }
     };
diff --git a/crates/ra_ide/src/references.rs b/crates/ra_ide/src/references.rs
index 9dd228b9c..453985de3 100644
--- a/crates/ra_ide/src/references.rs
+++ b/crates/ra_ide/src/references.rs
@@ -130,13 +130,13 @@ fn find_name(
     opt_name: Option<ast::Name>,
 ) -> Option<RangeInfo<Definition>> {
     if let Some(name) = opt_name {
-        let def = classify_name(sema, &name)?.definition(sema.db)?;
+        let def = classify_name(sema, &name)?.definition(sema.db);
         let range = name.syntax().text_range();
         return Some(RangeInfo::new(range, def));
     }
     let name_ref =
         sema.find_node_at_offset_with_descend::<ast::NameRef>(&syntax, position.offset)?;
-    let def = classify_name_ref(sema, &name_ref)?.definition(sema.db)?;
+    let def = classify_name_ref(sema, &name_ref)?.definition(sema.db);
     let range = name_ref.syntax().text_range();
     Some(RangeInfo::new(range, def))
 }