From 1e76dc4a172c9e8bbe53a483a0e60ab13717aaf4 Mon Sep 17 00:00:00 2001
From: Mattrixwv <m_ellison@ymail.com>
Date: Thu, 11 Jun 2020 16:55:56 -0400
Subject: [PATCH] Added chapter 7

---
 src/Expressions.rs | 31 +++++++++++++++++++++++++++++++
 src/main.rs        | 10 +++++++---
 2 files changed, 38 insertions(+), 3 deletions(-)
 create mode 100644 src/Expressions.rs

diff --git a/src/Expressions.rs b/src/Expressions.rs
new file mode 100644
index 0000000..4d9cdc7
--- /dev/null
+++ b/src/Expressions.rs
@@ -0,0 +1,31 @@
+pub fn main(){
+	/*
+	//variable binding
+	let x = 5;
+
+	//expression;
+	x;
+	x + 1;
+	15;
+	*/
+
+	let x = 5u32;
+
+	let y = {
+		let x_squared = x * x;
+		let x_cube = x_squared * x;
+
+		//This expression will be assigned to `y`
+		x_cube + x_squared + x
+	};
+
+	#[allow(unused_must_use)]
+	let z = {
+		//The semicolon suppresses this expression and `()` is assigned to `z`
+		2 * x;
+	};
+
+	println!("x is {:?}", x);
+	println!("y is {:?}", y);
+	println!("z is {:?}", z);
+}
diff --git a/src/main.rs b/src/main.rs
index 0a9ecf4..f72c077 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -7,6 +7,7 @@ mod CustomTypes;
 mod VariableBindings;
 mod Types;
 mod Conversion;
+mod Expressions;
 
 
 fn main(){
@@ -69,9 +70,12 @@ fn main(){
 
 	//6 Conversion
 	//6.1 From and Into
-	Conversion::FromAndInto::main();
+	//Conversion::FromAndInto::main();
 	//6.2 TryFrom and TryInto
-	Conversion::TryFromAndTryInto::main();
+	//Conversion::TryFromAndTryInto::main();
 	//6.3 To and From Strings
-	Conversion::ToAndFromStrings::main();
+	//Conversion::ToAndFromStrings::main();
+
+	//7 Expressions
+	Expressions::main();
 }