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-rw-r--r--crates/hir_expand/src/ast_id_map.rs4
1 files changed, 3 insertions, 1 deletions
diff --git a/crates/hir_expand/src/ast_id_map.rs b/crates/hir_expand/src/ast_id_map.rs
index 0991fffd8..16cf29907 100644
--- a/crates/hir_expand/src/ast_id_map.rs
+++ b/crates/hir_expand/src/ast_id_map.rs
@@ -13,6 +13,7 @@ use std::{
13}; 13};
14 14
15use la_arena::{Arena, Idx}; 15use la_arena::{Arena, Idx};
16use profile::Count;
16use syntax::{ast, match_ast, AstNode, AstPtr, SyntaxNode, SyntaxNodePtr}; 17use syntax::{ast, match_ast, AstNode, AstPtr, SyntaxNode, SyntaxNodePtr};
17 18
18/// `AstId` points to an AST node in a specific file. 19/// `AstId` points to an AST node in a specific file.
@@ -62,12 +63,13 @@ type ErasedFileAstId = Idx<SyntaxNodePtr>;
62#[derive(Debug, PartialEq, Eq, Default)] 63#[derive(Debug, PartialEq, Eq, Default)]
63pub struct AstIdMap { 64pub struct AstIdMap {
64 arena: Arena<SyntaxNodePtr>, 65 arena: Arena<SyntaxNodePtr>,
66 _c: Count<Self>,
65} 67}
66 68
67impl AstIdMap { 69impl AstIdMap {
68 pub(crate) fn from_source(node: &SyntaxNode) -> AstIdMap { 70 pub(crate) fn from_source(node: &SyntaxNode) -> AstIdMap {
69 assert!(node.parent().is_none()); 71 assert!(node.parent().is_none());
70 let mut res = AstIdMap { arena: Arena::default() }; 72 let mut res = AstIdMap::default();
71 // By walking the tree in breadth-first order we make sure that parents 73 // By walking the tree in breadth-first order we make sure that parents
72 // get lower ids then children. That is, adding a new child does not 74 // get lower ids then children. That is, adding a new child does not
73 // change parent's id. This means that, say, adding a new function to a 75 // change parent's id. This means that, say, adding a new function to a