6 files changed, 18 insertions, 30 deletions

diff --git a/crates/ra_ide_api/src/completion/complete_dot.rs b/crates/ra_ide_api/src/completion/complete_dot.rs
index bf6d91a09..886dc54d4 100644
--- a/crates/ra_ide_api/src/completion/complete_dot.rs
+++ b/crates/ra_ide_api/src/completion/complete_dot.rs
@@ -27,7 +27,7 @@ fn complete_fields(acc: &mut Completions, ctx: &CompletionContext, receiver: Ty)
     for receiver in receiver.autoderef(ctx.db) {
         match receiver {
             Ty::Adt { def_id, .. } => {
-                match def_id.resolve(ctx.db)? {
+                match def_id.resolve(ctx.db) {
                     Def::Struct(s) => {
                         for field in s.fields(ctx.db) {
                             CompletionItem::new(
diff --git a/crates/ra_ide_api/src/completion/complete_path.rs b/crates/ra_ide_api/src/completion/complete_path.rs
index 6388197be..207a509b3 100644
--- a/crates/ra_ide_api/src/completion/complete_path.rs
+++ b/crates/ra_ide_api/src/completion/complete_path.rs
@@ -12,7 +12,7 @@ pub(super) fn complete_path(acc: &mut Completions, ctx: &CompletionContext) -> C
         Some(it) => it,
         None => return Ok(()),
     };
-    match def_id.resolve(ctx.db)? {
+    match def_id.resolve(ctx.db) {
         hir::Def::Module(module) => {
             let module_scope = module.scope(ctx.db)?;
             for (name, res) in module_scope.entries() {
diff --git a/crates/ra_ide_api/src/completion/completion_item.rs b/crates/ra_ide_api/src/completion/completion_item.rs
index b75d65de3..11d00f78c 100644
--- a/crates/ra_ide_api/src/completion/completion_item.rs
+++ b/crates/ra_ide_api/src/completion/completion_item.rs
@@ -144,7 +144,7 @@ impl Builder {
         ctx: &CompletionContext,
         resolution: &hir::Resolution,
     ) -> Builder {
-        let resolved = resolution.def_id.and_then(|d| d.resolve(ctx.db).ok());
+        let resolved = resolution.def_id.map(|d| d.resolve(ctx.db));
         let kind = match resolved {
             PerNs {
                 types: Some(hir::Def::Module(..)),
diff --git a/crates/ra_ide_api/src/goto_definition.rs b/crates/ra_ide_api/src/goto_definition.rs
index 591f36cce..7229293a4 100644
--- a/crates/ra_ide_api/src/goto_definition.rs
+++ b/crates/ra_ide_api/src/goto_definition.rs
@@ -70,7 +70,7 @@ pub(crate) fn reference_definition(
                 .node_expr(expr)
                 .and_then(|it| infer_result.method_resolution(it))
             {
-                if let Some(target) = NavigationTarget::from_def(db, def_id.resolve(db)?)? {
+                if let Some(target) = NavigationTarget::from_def(db, def_id.resolve(db)) {
                     return Ok(Exact(target));
                 }
             };
@@ -87,7 +87,7 @@ pub(crate) fn reference_definition(
         {
             let resolved = module.resolve_path(db, &path)?;
             if let Some(def_id) = resolved.take_types().or(resolved.take_values()) {
-                if let Some(target) = NavigationTarget::from_def(db, def_id.resolve(db)?)? {
+                if let Some(target) = NavigationTarget::from_def(db, def_id.resolve(db)) {
                     return Ok(Exact(target));
                 }
             }
@@ -112,7 +112,7 @@ fn name_definition(
             if let Some(child_module) =
                 hir::source_binder::module_from_declaration(db, file_id, module)
             {
-                let nav = NavigationTarget::from_module(db, child_module)?;
+                let nav = NavigationTarget::from_module(db, child_module);
                 return Ok(Some(vec![nav]));
             }
         }
diff --git a/crates/ra_ide_api/src/navigation_target.rs b/crates/ra_ide_api/src/navigation_target.rs
index 965dfc0ca..21c15c0c0 100644
--- a/crates/ra_ide_api/src/navigation_target.rs
+++ b/crates/ra_ide_api/src/navigation_target.rs
@@ -1,4 +1,4 @@
-use ra_db::{FileId, Cancelable};
+use ra_db::FileId;
 use ra_syntax::{
     SyntaxNode, AstNode, SmolStr, TextRange, ast,
     SyntaxKind::{self, NAME},
@@ -69,47 +69,35 @@ impl NavigationTarget {
         }
     }
 
-    pub(crate) fn from_module(
-        db: &RootDatabase,
-        module: hir::Module,
-    ) -> Cancelable<NavigationTarget> {
+    pub(crate) fn from_module(db: &RootDatabase, module: hir::Module) -> NavigationTarget {
         let (file_id, source) = module.definition_source(db);
         let name = module
             .name(db)
             .map(|it| it.to_string().into())
             .unwrap_or_default();
-        let res = match source {
+        match source {
             ModuleSource::SourceFile(node) => {
                 NavigationTarget::from_syntax(file_id, name, None, node.syntax())
             }
             ModuleSource::Module(node) => {
                 NavigationTarget::from_syntax(file_id, name, None, node.syntax())
             }
-        };
-        Ok(res)
+        }
     }
 
-    pub(crate) fn from_module_to_decl(
-        db: &RootDatabase,
-        module: hir::Module,
-    ) -> Cancelable<NavigationTarget> {
+    pub(crate) fn from_module_to_decl(db: &RootDatabase, module: hir::Module) -> NavigationTarget {
         let name = module
             .name(db)
             .map(|it| it.to_string().into())
             .unwrap_or_default();
         if let Some((file_id, source)) = module.declaration_source(db) {
-            return Ok(NavigationTarget::from_syntax(
-                file_id,
-                name,
-                None,
-                source.syntax(),
-            ));
+            return NavigationTarget::from_syntax(file_id, name, None, source.syntax());
         }
         NavigationTarget::from_module(db, module)
     }
 
     // TODO once Def::Item is gone, this should be able to always return a NavigationTarget
-    pub(crate) fn from_def(db: &RootDatabase, def: Def) -> Cancelable<Option<NavigationTarget>> {
+    pub(crate) fn from_def(db: &RootDatabase, def: Def) -> Option<NavigationTarget> {
         let res = match def {
             Def::Struct(s) => {
                 let (file_id, node) = s.source(db);
@@ -124,7 +112,7 @@ impl NavigationTarget {
                 NavigationTarget::from_named(file_id.original_file(db), &*node)
             }
             Def::Function(f) => {
-                let (file_id, node) = f.source(db)?;
+                let (file_id, node) = f.source(db);
                 NavigationTarget::from_named(file_id.original_file(db), &*node)
             }
             Def::Trait(f) => {
@@ -143,10 +131,10 @@ impl NavigationTarget {
                 let (file_id, node) = f.source(db);
                 NavigationTarget::from_named(file_id.original_file(db), &*node)
             }
-            Def::Module(m) => NavigationTarget::from_module(db, m)?,
-            Def::Item => return Ok(None),
+            Def::Module(m) => NavigationTarget::from_module(db, m),
+            Def::Item => return None,
         };
-        Ok(Some(res))
+        Some(res)
     }
 
     #[cfg(test)]
diff --git a/crates/ra_ide_api/src/parent_module.rs b/crates/ra_ide_api/src/parent_module.rs
index 451304739..379b3f3a4 100644
--- a/crates/ra_ide_api/src/parent_module.rs
+++ b/crates/ra_ide_api/src/parent_module.rs
@@ -12,7 +12,7 @@ pub(crate) fn parent_module(
         None => return Ok(Vec::new()),
         Some(it) => it,
     };
-    let nav = NavigationTarget::from_module_to_decl(db, module)?;
+    let nav = NavigationTarget::from_module_to_decl(db, module);
     Ok(vec![nav])
 }