From 7e8ee5ed9cad6484e9f13f81731b102ced58402e Mon Sep 17 00:00:00 2001
From: Adam Carpenter <gitlab@53hor.net>
Date: Tue, 9 Jul 2019 15:14:04 -0400
Subject: Init.

---
 meap/meap-code/ch3/ch3-file-doced.rs | 38 ++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100755 meap/meap-code/ch3/ch3-file-doced.rs

(limited to 'meap/meap-code/ch3/ch3-file-doced.rs')

diff --git a/meap/meap-code/ch3/ch3-file-doced.rs b/meap/meap-code/ch3/ch3-file-doced.rs
new file mode 100755
index 0000000..18e35f0
--- /dev/null
+++ b/meap/meap-code/ch3/ch3-file-doced.rs
@@ -0,0 +1,38 @@
+//! Simulating files one step at a time.
+
+/// Represents a "file", which probably lives on a file system.
+#[derive(Debug)]
+pub struct File {
+  name: String,
+  data: Vec<u8>,
+}
+
+impl File {
+  /// New files are assumed to be empty, but a name is required.
+  pub fn new(name: &str) -> File {
+    File {
+      name: String::from(name),
+      data: Vec::new(),
+    }
+  }
+  
+  pub fn len(&self) -> usize {
+    //! Returns the file's length in bytes.
+    self.data.len()
+  }
+  
+  pub fn name(&self) -> String {
+    //! Returns the file's name.
+    self.name.clone()
+  }
+}
+
+fn main() {
+  let f1 = File::new("f1.txt");
+  
+  let f1_name = f1.name();
+  let f1_length = f1.len();
+  
+  println!("{:?}", f1);
+  println!("{} is {} bytes long", f1_name, f1_length);
+}
\ No newline at end of file
-- 
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