From 866b0e299b87af5d6a48579fa9e667783d75d468 Mon Sep 17 00:00:00 2001
From: JoJoJet <21144246+JoJoJet@users.noreply.github.com>
Date: Fri, 23 Dec 2022 18:45:29 -0500
Subject: [PATCH 1/4] add a basic example for system ordering

---
 crates/bevy_ecs/src/system/mod.rs | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/crates/bevy_ecs/src/system/mod.rs b/crates/bevy_ecs/src/system/mod.rs
index 0dcc806c6d44a..3967ec01c6b71 100644
--- a/crates/bevy_ecs/src/system/mod.rs
+++ b/crates/bevy_ecs/src/system/mod.rs
@@ -45,6 +45,31 @@
 //!   methods such as `.before()` and `.after()` are appended to systems to determine
 //!   execution order in respect to other systems.
 //!
+//! ## Example
+//!
+//! ```
+//! # use bevy_ecs::prelude::*;
+//! # struct App;
+//! # impl App {
+//! #     fn new() -> SystemStage { SystemStage::single_threaded() }
+//! # }
+//! # let mut app = SystemStage::single_threaded();
+//! # let mut app =
+//! App::new()
+//!     # ; app
+//!     .add_system(print_first)
+//!     .add_system(print_second.after(print_first))
+//!     # ; app
+//!     .run(); // Prints "Hello, World!" each frame.
+//!
+//! fn print_first() {
+//!     print!("Hello, ");
+//! }
+//! fn print_second() {
+//!     println!("World!");
+//! }
+//! ```
+//!
 //! # System parameter list
 //! Following is the complete list of accepted types as system parameters:
 //!

From af8b9727b55c2f16392b72f2c8716f3c1b00ae32 Mon Sep 17 00:00:00 2001
From: JoJoJet <21144246+JoJoJet@users.noreply.github.com>
Date: Fri, 23 Dec 2022 18:52:50 -0500
Subject: [PATCH 2/4] add an example of `before`

---
 crates/bevy_ecs/src/system/mod.rs | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/crates/bevy_ecs/src/system/mod.rs b/crates/bevy_ecs/src/system/mod.rs
index 3967ec01c6b71..51b2c88d1f28a 100644
--- a/crates/bevy_ecs/src/system/mod.rs
+++ b/crates/bevy_ecs/src/system/mod.rs
@@ -54,18 +54,21 @@
 //! #     fn new() -> SystemStage { SystemStage::single_threaded() }
 //! # }
 //! # let mut app = SystemStage::single_threaded();
-//! # let mut app =
-//! App::new()
-//!     # ; app
-//!     .add_system(print_first)
-//!     .add_system(print_second.after(print_first))
-//!     # ; app
-//!     .run(); // Prints "Hello, World!" each frame.
+//! // Prints "Hello, World!" each frame.
+//! app
+//!     .add_system(print_first.before(print_mid))
+//!     .add_system(print_mid)
+//!     .add_system(print_last.after(print_mid));
+//! # let mut world = World::new();
+//! # app.run(&mut world);
 //!
 //! fn print_first() {
-//!     print!("Hello, ");
+//!     print!("Hello");
 //! }
-//! fn print_second() {
+//! fn print_mid() {
+//!     print!(", ");
+//! }
+//! fn print_last() {
 //!     println!("World!");
 //! }
 //! ```

From d8299dc75f60a8a52a2750b52932233cfc993723 Mon Sep 17 00:00:00 2001
From: JoJoJet <21144246+JoJoJet@users.noreply.github.com>
Date: Fri, 23 Dec 2022 19:06:31 -0500
Subject: [PATCH 3/4] update docs to use `SystemTypeIdLabel` by default

---
 crates/bevy_ecs/src/system/mod.rs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/crates/bevy_ecs/src/system/mod.rs b/crates/bevy_ecs/src/system/mod.rs
index 51b2c88d1f28a..0c7ba092ec642 100644
--- a/crates/bevy_ecs/src/system/mod.rs
+++ b/crates/bevy_ecs/src/system/mod.rs
@@ -41,9 +41,11 @@
 //!
 //! - **System Stages:** They determine hard execution synchronization boundaries inside of
 //!   which systems run in parallel by default.
-//! - **Labeling:** First, systems are labeled upon creation by calling `.label()`. Then,
-//!   methods such as `.before()` and `.after()` are appended to systems to determine
-//!   execution order in respect to other systems.
+//! - **Labels:** Systems may be ordered within a stage using the methods `.before()` and `.after()`,
+//!   which order systems based on their [`SystemLabel`]s. Each system is implicitly labeled with
+//!   its `fn` type, and custom labels may be added by calling `.label()`.
+//!
+//! [`SystemLabel`]: crate::schedule::SystemLabel
 //!
 //! ## Example
 //!

From 237dd9708d0acc855cd007c779165664852ebc55 Mon Sep 17 00:00:00 2001
From: JoJoJet <21144246+JoJoJet@users.noreply.github.com>
Date: Sat, 24 Dec 2022 08:03:44 -0500
Subject: [PATCH 4/4] remove some leftover code

---
 crates/bevy_ecs/src/system/mod.rs | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/crates/bevy_ecs/src/system/mod.rs b/crates/bevy_ecs/src/system/mod.rs
index 0c7ba092ec642..be66144b4a6a8 100644
--- a/crates/bevy_ecs/src/system/mod.rs
+++ b/crates/bevy_ecs/src/system/mod.rs
@@ -51,10 +51,6 @@
 //!
 //! ```
 //! # use bevy_ecs::prelude::*;
-//! # struct App;
-//! # impl App {
-//! #     fn new() -> SystemStage { SystemStage::single_threaded() }
-//! # }
 //! # let mut app = SystemStage::single_threaded();
 //! // Prints "Hello, World!" each frame.
 //! app