From 6b23c22ccad4044476b65fc8f3e32794f1884781 Mon Sep 17 00:00:00 2001
From: Mazdak Farrokhzad <twingoow@gmail.com>
Date: Mon, 7 Oct 2019 06:31:02 +0200
Subject: [PATCH] syntax: refactor with new `fn parse_use_tree_glob_or_nested`.

---
 src/libsyntax/parse/parser/item.rs | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/src/libsyntax/parse/parser/item.rs b/src/libsyntax/parse/parser/item.rs
index d2ea0829595c0..3c60c88e2aa58 100644
--- a/src/libsyntax/parse/parser/item.rs
+++ b/src/libsyntax/parse/parser/item.rs
@@ -1077,21 +1077,13 @@ impl<'a> Parser<'a> {
                 );
             }
 
-            if self.eat(&token::BinOp(token::Star)) {
-                UseTreeKind::Glob
-            } else {
-                UseTreeKind::Nested(self.parse_use_tree_list()?)
-            }
+            self.parse_use_tree_glob_or_nested()?
         } else {
             // `use path::*;` or `use path::{...};` or `use path;` or `use path as bar;`
             prefix = self.parse_path(PathStyle::Mod)?;
 
             if self.eat(&token::ModSep) {
-                if self.eat(&token::BinOp(token::Star)) {
-                    UseTreeKind::Glob
-                } else {
-                    UseTreeKind::Nested(self.parse_use_tree_list()?)
-                }
+                self.parse_use_tree_glob_or_nested()?
             } else {
                 UseTreeKind::Simple(self.parse_rename()?, DUMMY_NODE_ID, DUMMY_NODE_ID)
             }
@@ -1100,6 +1092,15 @@ impl<'a> Parser<'a> {
         Ok(UseTree { prefix, kind, span: lo.to(self.prev_span) })
     }
 
+    /// Parses `*` or `{...}`.
+    fn parse_use_tree_glob_or_nested(&mut self) -> PResult<'a, UseTreeKind> {
+        Ok(if self.eat(&token::BinOp(token::Star)) {
+            UseTreeKind::Glob
+        } else {
+            UseTreeKind::Nested(self.parse_use_tree_list()?)
+        })
+    }
+
     /// Parses a `UseTreeKind::Nested(list)`.
     ///
     /// ```