From a79237e2866460dfef3dd99f3b319cfc150c673c Mon Sep 17 00:00:00 2001
From: Michael Zhang <mail@mzhang.io>
Date: Wed, 14 Jul 2021 03:16:32 -0500
Subject: [PATCH] chow

---
 .gitignore   |  1 +
 Cargo.lock   |  5 +++++
 Cargo.toml   |  7 +++++++
 src/main.rs  |  6 ++++++
 src/myers.rs |  3 +++
 src/sync.rs  | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 6 files changed, 81 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.lock
 create mode 100644 Cargo.toml
 create mode 100644 src/main.rs
 create mode 100644 src/myers.rs
 create mode 100644 src/sync.rs

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..8551a8b
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,5 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "chow"
+version = "0.1.0"
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..e8b7574
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "chow"
+version = "0.1.0"
+authors = ["Michael Zhang <mail@mzhang.io>"]
+edition = "2018"
+
+[dependencies]
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..2e5986c
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,6 @@
+mod sync;
+mod myers;
+
+fn main() {
+    println!("Hello, world!");
+}
diff --git a/src/myers.rs b/src/myers.rs
new file mode 100644
index 0000000..8b35cae
--- /dev/null
+++ b/src/myers.rs
@@ -0,0 +1,3 @@
+pub fn myers<T>() {
+    
+}
\ No newline at end of file
diff --git a/src/sync.rs b/src/sync.rs
new file mode 100644
index 0000000..183cbfc
--- /dev/null
+++ b/src/sync.rs
@@ -0,0 +1,59 @@
+pub trait Differentiable {
+    type Diff;
+    fn diff(a: Self, b: Self) -> Self::Diff;
+    fn apply(&mut self, d: Self::Diff);
+}
+
+pub struct List<T>(Vec<T>);
+
+pub enum ListDiff<T> {
+    Insert(usize, T),
+    Delete(usize),
+    Update(usize, T),
+}
+
+impl<T: Differentiable> Differentiable for List<T> {
+    type Diff = Vec<(usize, T::Diff)>;
+
+    fn diff(_a: Self, _b: Self) -> Self::Diff {
+        todo!()
+    }
+
+    fn apply(&mut self, _d: Self::Diff) {
+
+    }
+}
+
+pub struct Chow {
+    items: Vec<String>,
+}
+
+pub struct ChowDiff;
+
+impl Differentiable for Chow {
+    type Diff = ChowDiff;
+    fn diff(_a: Self, _b: Self) -> Self::Diff {
+        todo!()
+    }
+
+    fn apply(&mut self, _d: Self::Diff) {
+
+    }
+}
+
+pub struct ClientState {
+    text: Chow,
+    shadow: Chow,
+    current_client_version: usize,
+    last_server_version: usize,
+}
+
+impl ClientState {
+
+}
+
+pub struct ServerState {
+    text: Chow,
+    shadow: Chow,
+    backup_shadow: Chow,
+}
\ No newline at end of file