Auto import macros

crates/ra_assists/src/ast_transform.rs

@@ -129,7 +129,7 @@ impl<'a> QualifyPaths<'a> {
         let resolution = self.source_scope.resolve_hir_path(&hir_path?)?;
         match resolution {
             PathResolution::Def(def) => {
-                let found_path = from.find_use_path(self.source_scope.db, def)?;
+                let found_path = from.find_use_path(self.source_scope.db, def.into())?;
                 let mut path = path_to_ast(found_path);
 
                 let type_args = p

crates/ra_assists/src/handlers/auto_import.rs

@@ -4,7 +4,7 @@ use hir::{
     AsAssocItem, AssocItemContainer, ModPath, Module, ModuleDef, PathResolution, Semantics, Trait,
     Type,
 };
-use ra_ide_db::{imports_locator::ImportsLocator, RootDatabase};
+use ra_ide_db::{defs::Definition, imports_locator::ImportsLocator, RootDatabase};
 use ra_prof::profile;
 use ra_syntax::{
     ast::{self, AstNode},
@@ -127,14 +127,16 @@ impl AutoImportAssets {
         ImportsLocator::new(db)
             .find_imports(&self.get_search_query())
             .into_iter()
-            .filter_map(|module_def| match &self.import_candidate {
+            .filter_map(|definition| match &self.import_candidate {
                 ImportCandidate::TraitAssocItem(assoc_item_type, _) => {
-                    let located_assoc_item = match module_def {
+                    let located_assoc_item = match definition {
-                        ModuleDef::Function(located_function) => located_function
+                        Definition::ModuleDef(ModuleDef::Function(located_function)) => {
+                            located_function
                                 .as_assoc_item(db)
                                 .map(|assoc| assoc.container(db))
-                            .and_then(Self::assoc_to_trait),
+                                .and_then(Self::assoc_to_trait)
-                        ModuleDef::Const(located_const) => located_const
+                        }
+                        Definition::ModuleDef(ModuleDef::Const(located_const)) => located_const
                             .as_assoc_item(db)
                             .map(|assoc| assoc.container(db))
                             .and_then(Self::assoc_to_trait),
@@ -152,11 +154,13 @@ impl AutoImportAssets {
                             None,
                             |_, assoc| Self::assoc_to_trait(assoc.container(db)),
                         )
-                        .map(ModuleDef::from)
+                        .map(|located_trait| ModuleDef::from(located_trait).into())
                 }
                 ImportCandidate::TraitMethod(function_callee, _) => {
                     let located_assoc_item =
-                        if let ModuleDef::Function(located_function) = module_def {
+                        if let Definition::ModuleDef(ModuleDef::Function(located_function)) =
+                            definition
+                        {
                             located_function
                                 .as_assoc_item(db)
                                 .map(|assoc| assoc.container(db))
@@ -178,11 +182,15 @@ impl AutoImportAssets {
                                 Self::assoc_to_trait(function.as_assoc_item(db)?.container(db))
                             },
                         )
-                        .map(ModuleDef::from)
+                        .map(|located_trait| ModuleDef::from(located_trait).into())
                 }
-                _ => Some(module_def),
+                _ => match definition {
+                    Definition::ModuleDef(module_def) => Some(module_def.into()),
+                    Definition::Macro(macro_def) => Some(macro_def.into()),
+                    _ => None,
+                },
             })
-            .filter_map(|module_def| self.module_with_name_to_import.find_use_path(db, module_def))
+            .filter_map(|item| self.module_with_name_to_import.find_use_path(db, item))
             .filter(|use_path| !use_path.segments.is_empty())
             .take(20)
             .collect::<BTreeSet<_>>()

crates/ra_assists/src/handlers/fill_match_arms.rs

@@ -2,7 +2,7 @@
 
 use std::iter;
 
-use hir::{Adt, HasSource, Semantics};
+use hir::{Adt, HasSource, ModuleDef, Semantics};
 use itertools::Itertools;
 use ra_ide_db::RootDatabase;
 
@@ -154,7 +154,8 @@ fn resolve_tuple_of_enum_def(
 }
 
 fn build_pat(db: &RootDatabase, module: hir::Module, var: hir::EnumVariant) -> Option<ast::Pat> {
-    let path = crate::ast_transform::path_to_ast(module.find_use_path(db, var.into())?);
+    let path =
+        crate::ast_transform::path_to_ast(module.find_use_path(db, ModuleDef::from(var).into())?);
 
     // FIXME: use HIR for this; it doesn't currently expose struct vs. tuple vs. unit variants though
     let pat: ast::Pat = match var.source(db).value.kind() {

crates/ra_hir/src/code_model.rs

@@ -139,6 +139,17 @@ impl ModuleDef {
     }
 }
 
+impl From<ModuleDef> for ItemInNs {
+    fn from(module_def: ModuleDef) -> Self {
+        match module_def {
+            ModuleDef::Static(_) | ModuleDef::Const(_) | ModuleDef::Function(_) => {
+                ItemInNs::Values(module_def.into())
+            }
+            _ => ItemInNs::Types(module_def.into()),
+        }
+    }
+}
+
 pub use hir_def::{
     attr::Attrs, item_scope::ItemInNs, visibility::Visibility, AssocItemId, AssocItemLoc,
 };
@@ -275,19 +286,9 @@ impl Module {
     pub fn find_use_path(
         self,
         db: &dyn HirDatabase,
-        item: ModuleDef,
+        item: ItemInNs,
     ) -> Option<hir_def::path::ModPath> {
-        // FIXME expose namespace choice
+        hir_def::find_path::find_path(db.upcast(), item, self.into())
-        hir_def::find_path::find_path(db.upcast(), determine_item_namespace(item), self.into())
-    }
-}
-
-fn determine_item_namespace(module_def: ModuleDef) -> ItemInNs {
-    match module_def {
-        ModuleDef::Static(_) | ModuleDef::Const(_) | ModuleDef::Function(_) => {
-            ItemInNs::Values(module_def.into())
-        }
-        _ => ItemInNs::Types(module_def.into()),
     }
 }
 
@@ -759,6 +760,12 @@ impl MacroDef {
     }
 }
 
+impl From<MacroDef> for ItemInNs {
+    fn from(macro_def: MacroDef) -> Self {
+        ItemInNs::Macros(macro_def.into())
+    }
+}
+
 /// Invariant: `inner.as_assoc_item(db).is_some()`
 /// We do not actively enforce this invariant.
 #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]

crates/ra_ide_db/src/imports_locator.rs

@@ -1,7 +1,7 @@
 //! This module contains an import search funcionality that is provided to the ra_assists module.
 //! Later, this should be moved away to a separate crate that is accessible from the ra_assists module.
 
-use hir::{ModuleDef, Semantics};
+use hir::Semantics;
 use ra_prof::profile;
 use ra_syntax::{ast, AstNode, SyntaxKind::NAME};
 
@@ -20,7 +20,7 @@ impl<'a> ImportsLocator<'a> {
         Self { sema: Semantics::new(db) }
     }
 
-    pub fn find_imports(&mut self, name_to_import: &str) -> Vec<ModuleDef> {
+    pub fn find_imports(&mut self, name_to_import: &str) -> Vec<Definition> {
         let _p = profile("search_for_imports");
         let db = self.sema.db;
 
@@ -42,10 +42,6 @@ impl<'a> ImportsLocator<'a> {
             .into_iter()
             .chain(lib_results.into_iter())
             .filter_map(|import_candidate| self.get_name_definition(&import_candidate))
-            .filter_map(|name_definition_to_import| match name_definition_to_import {
-                Definition::ModuleDef(module_def) => Some(module_def),
-                _ => None,
-            })
             .collect()
     }