From 7e0aa3b86bd898e83f2187279cc1b7620ef96976 Mon Sep 17 00:00:00 2001
From: Dan Buch <dan@meatballhat.com>
Date: Sun, 1 Oct 2023 06:01:54 -0400
Subject: [PATCH] fn closures in RBE

---
 rustbyexample/fn.d/closures.d/capture.rs  | 36 +++++++++++++++++++++++
 rustbyexample/fn.d/closures.d/capture2.rs |  8 +++++
 2 files changed, 44 insertions(+)
 create mode 100644 rustbyexample/fn.d/closures.d/capture.rs
 create mode 100644 rustbyexample/fn.d/closures.d/capture2.rs

diff --git a/rustbyexample/fn.d/closures.d/capture.rs b/rustbyexample/fn.d/closures.d/capture.rs
new file mode 100644
index 0000000..c8bcac7
--- /dev/null
+++ b/rustbyexample/fn.d/closures.d/capture.rs
@@ -0,0 +1,36 @@
+fn main() {
+    use std::mem;
+
+    let color = String::from("green");
+
+    let print = || println!("`color`: {}", color);
+
+    print();
+
+    let _reborrow = &color;
+    print();
+
+    let _color_moved = color;
+
+    let mut count = 0;
+
+    let mut inc = || {
+        count += 1;
+        println!("`count`: {}", count);
+    };
+
+    inc();
+
+    inc();
+
+    let _count_reborrowed = &mut count;
+
+    let movable = Box::new(3);
+
+    let consume = || {
+        println!("`movable`: {:?}", movable);
+        mem::drop(movable);
+    };
+
+    consume();
+}
diff --git a/rustbyexample/fn.d/closures.d/capture2.rs b/rustbyexample/fn.d/closures.d/capture2.rs
new file mode 100644
index 0000000..80f8480
--- /dev/null
+++ b/rustbyexample/fn.d/closures.d/capture2.rs
@@ -0,0 +1,8 @@
+fn main() {
+    let haystack = vec![1, 2, 3];
+
+    let contains = move |needle| haystack.contains(needle);
+
+    println!("{}", contains(&1));
+    println!("{}", contains(&4));
+}