From d54cfaf3f4e6a84a7fcd82f4d7327eead8fb9968 Mon Sep 17 00:00:00 2001
From: Jeong YunWon <jeong@youknowone.org>
Date: Sun, 27 Sep 2020 10:46:50 +0900
Subject: [PATCH] Keep source code order for module items

---
 Cargo.lock         | 1 +
 derive/Cargo.toml  | 1 +
 derive/src/util.rs | 3 ++-
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Cargo.lock b/Cargo.lock
index 262c5eb68..b5f620599 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1670,6 +1670,7 @@ dependencies = [
 name = "rustpython-derive"
 version = "0.1.2"
 dependencies = [
+ "indexmap",
  "maplit",
  "once_cell",
  "proc-macro2",
diff --git a/derive/Cargo.toml b/derive/Cargo.toml
index 61c019918..69167ee21 100644
--- a/derive/Cargo.toml
+++ b/derive/Cargo.toml
@@ -20,3 +20,4 @@ rustpython-bytecode = { path = "../bytecode", version = "0.1.1" }
 maplit = "1.0"
 once_cell = "1.3.1"
 textwrap = "0.12.1"
+indexmap = "^1"
diff --git a/derive/src/util.rs b/derive/src/util.rs
index 52f80a68d..86f7b31be 100644
--- a/derive/src/util.rs
+++ b/derive/src/util.rs
@@ -1,3 +1,4 @@
+use indexmap::map::IndexMap;
 use proc_macro2::{Span, TokenStream};
 use quote::{quote, ToTokens};
 use std::collections::HashMap;
@@ -18,7 +19,7 @@ pub(crate) const ALL_ALLOWED_NAMES: &[&str] = &[
 ];
 
 #[derive(Default)]
-pub(crate) struct ItemNursery(HashMap<(String, Vec<Attribute>), TokenStream>);
+pub(crate) struct ItemNursery(IndexMap<(String, Vec<Attribute>), TokenStream>);
 
 impl ItemNursery {
     pub fn add_item(