From 99b6ecfab061396613c5f459fae43ea17b5675b8 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Tue, 29 Oct 2019 16:12:54 +0300
Subject: [PATCH] switch expand to dyn Trait

---
 crates/ra_hir_expand/src/db.rs  | 12 ++++++------
 crates/ra_hir_expand/src/lib.rs |  6 +++---
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/crates/ra_hir_expand/src/db.rs b/crates/ra_hir_expand/src/db.rs
index dc4944c051..a4ee9a529a 100644
--- a/crates/ra_hir_expand/src/db.rs
+++ b/crates/ra_hir_expand/src/db.rs
@@ -28,13 +28,13 @@ pub trait AstDatabase: SourceDatabase {
     fn macro_expand(&self, macro_call: MacroCallId) -> Result<Arc<tt::Subtree>, String>;
 }
 
-pub(crate) fn ast_id_map(db: &impl AstDatabase, file_id: HirFileId) -> Arc<AstIdMap> {
+pub(crate) fn ast_id_map(db: &dyn AstDatabase, file_id: HirFileId) -> Arc<AstIdMap> {
     let map =
         db.parse_or_expand(file_id).map_or_else(AstIdMap::default, |it| AstIdMap::from_source(&it));
     Arc::new(map)
 }
 
-pub(crate) fn macro_def(db: &impl AstDatabase, id: MacroDefId) -> Option<Arc<MacroRules>> {
+pub(crate) fn macro_def(db: &dyn AstDatabase, id: MacroDefId) -> Option<Arc<MacroRules>> {
     let macro_call = id.ast_id.to_node(db);
     let arg = macro_call.token_tree()?;
     let (tt, _) = mbe::ast_to_token_tree(&arg).or_else(|| {
@@ -48,7 +48,7 @@ pub(crate) fn macro_def(db: &impl AstDatabase, id: MacroDefId) -> Option<Arc<Mac
     Some(Arc::new(rules))
 }
 
-pub(crate) fn macro_arg(db: &impl AstDatabase, id: MacroCallId) -> Option<Arc<tt::Subtree>> {
+pub(crate) fn macro_arg(db: &dyn AstDatabase, id: MacroCallId) -> Option<Arc<tt::Subtree>> {
     let loc = db.lookup_intern_macro(id);
     let macro_call = loc.ast_id.to_node(db);
     let arg = macro_call.token_tree()?;
@@ -57,7 +57,7 @@ pub(crate) fn macro_arg(db: &impl AstDatabase, id: MacroCallId) -> Option<Arc<tt
 }
 
 pub(crate) fn macro_expand(
-    db: &impl AstDatabase,
+    db: &dyn AstDatabase,
     id: MacroCallId,
 ) -> Result<Arc<tt::Subtree>, String> {
     let loc = db.lookup_intern_macro(id);
@@ -73,7 +73,7 @@ pub(crate) fn macro_expand(
     Ok(Arc::new(tt))
 }
 
-pub(crate) fn parse_or_expand(db: &impl AstDatabase, file_id: HirFileId) -> Option<SyntaxNode> {
+pub(crate) fn parse_or_expand(db: &dyn AstDatabase, file_id: HirFileId) -> Option<SyntaxNode> {
     match file_id.0 {
         HirFileIdRepr::FileId(file_id) => Some(db.parse(file_id).tree().syntax().clone()),
         HirFileIdRepr::MacroFile(macro_file) => {
@@ -83,7 +83,7 @@ pub(crate) fn parse_or_expand(db: &impl AstDatabase, file_id: HirFileId) -> Opti
 }
 
 pub(crate) fn parse_macro(
-    db: &impl AstDatabase,
+    db: &dyn AstDatabase,
     macro_file: MacroFile,
 ) -> Option<Parse<SyntaxNode>> {
     let _p = profile("parse_macro_query");
diff --git a/crates/ra_hir_expand/src/lib.rs b/crates/ra_hir_expand/src/lib.rs
index 9100bd15cc..749227465f 100644
--- a/crates/ra_hir_expand/src/lib.rs
+++ b/crates/ra_hir_expand/src/lib.rs
@@ -63,7 +63,7 @@ impl From<MacroFile> for HirFileId {
 impl HirFileId {
     /// For macro-expansion files, returns the file original source file the
     /// expansion originated from.
-    pub fn original_file(self, db: &impl AstDatabase) -> FileId {
+    pub fn original_file(self, db: &dyn AstDatabase) -> FileId {
         match self.0 {
             HirFileIdRepr::FileId(file_id) => file_id,
             HirFileIdRepr::MacroFile(macro_file) => {
@@ -74,7 +74,7 @@ impl HirFileId {
     }
 
     /// Get the crate which the macro lives in, if it is a macro file.
-    pub fn macro_crate(self, db: &impl AstDatabase) -> Option<CrateId> {
+    pub fn macro_crate(self, db: &dyn AstDatabase) -> Option<CrateId> {
         match self.0 {
             HirFileIdRepr::FileId(_) => None,
             HirFileIdRepr::MacroFile(macro_file) => {
@@ -160,7 +160,7 @@ impl<N: AstNode> AstId<N> {
         self.file_id
     }
 
-    pub fn to_node(&self, db: &impl AstDatabase) -> N {
+    pub fn to_node(&self, db: &dyn AstDatabase) -> N {
         let root = db.parse_or_expand(self.file_id).unwrap();
         db.ast_id_map(self.file_id).get(self.file_ast_id).to_node(&root)
     }