work

Author: nikomatsakis

index.html

@@ -0,0 +1,8 @@
+<h2>Rust concurrency tutorial</h2>
+
+<ol>
+  <li> <a href="http://is.gd/MvBmlc">Hello World</a>
+  <li> <b href="http://is.gd/jsTBs9">Borrowing</a> -- convert this code to use borrowing
+       instead so that it compiles
+
+</ol>

lesson-plan.md

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+- Intro slide
+- Hello, World Example
+    - Explain:
+        - `fn` declaration
+        - `println` is a macro
+    - Format strings in `println!`
+        - `println("Hello, {}!", world);`
+        - also show `{:?}`
+    - Move "world" into a local variable so we can change it
+        - `let name = "Rustacean"; println("Hello, {}!", name);`
+    - Abstract into a helper fn
+        - `fn greet(name: String) { println("Hello, {}!", name); }`
+        - What goes wrong?
+            - Explain `format!`, show how you can use same helpers
+            - Explain `push_str` and mutable local variables
+                - `let mut name = format!("fellow "); name.push_str("Rustacean");`
+    - Call helper fn twice
+        - What goes wrong now?
+- Ownership slides
+- Borrowing slides
+- Borrowing example
+    - Show that `&` and `&mut` cannot overlap
+    - Time-limited
+- For loops
+  - show that `s` has type `String`

src/example00.rs

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+pub fn main() {
+    println!("Hello, world!");
+}

src/example01.rs

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+pub fn main() {
+    let name = format!("fellow Rustacean");
+    helper(name);
+}
+
+fn helper(name: String) {
+    println!("Hello, {}!", name);
+}
+
+// Discuss:
+// - &'static str vs String
+// - lead to

src/example02.rs

@@ -0,0 +1,9 @@
+pub fn main() {
+    let mut name = format!("fellow ");
+    name.push_str("Rustacean");
+    helper(name);
+}
+
+fn helper(name: String) {
+    println!("Hello, {}!", name);
+}

src/example03.rs

@@ -0,0 +1,10 @@
+pub fn main() {
+    let mut name = format!("fellow ");
+    name.push_str("Rustacean");
+    helper(&name);
+    helper(&name);
+}
+
+fn helper(name: &String) {
+    println!("Hello, {}!", name);
+}

src/example04.rs

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+pub fn main() {
+    let mut name = format!("fellow ");
+    adjust(&mut name);
+    helper(&name);
+    helper(&name);
+}
+
+fn adjust(name: &mut String) {
+    name.push_str("Rustacean");
+}
+
+fn helper(name: &String) {
+    println!("Hello, {}!", name);
+}

src/example05.rs

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+pub fn main() {
+    let mut name = Rc::new(format!("fellow "));
+    helper(name.clone());
+    helper(name.clone());
+}
+
+fn helper(name: Rc<String>) {
+    println!("Hello, {}!", name);
+}

src/example0.rs renamed to src/example10.rs

@@ -49,6 +49,8 @@ fn build_stores() -> Vec<Store> {
 
 fn find_best_store(stores: Vec<Store>, shopping_list: &Vec<String>) -> String {
     // EXERCISE 0
+    //
+    // Find the store with the best price and return its name.
     assert!(stores.len() > 0);
     let mut best = None;
     let mut best_price = INFINITY;