More comments in solution for cyclic Callbacks

[rust-101.git] / src / part12.rs

diff --git a/src/part12.rs b/src/part12.rs
index 62f08681fbd3611b7842489679bb14017e66bd9b..c2331eaf618b82aa2ee8e1308512c52b364401cd 100644 (file)
--- a/src/part12.rs
+++ b/src/part12.rs
@@ -71,7 +71,7 @@ pub fn main() {
 fn demo_cell(c: &mut Callbacks) {
     {
         let count = Cell::new(0);
-        // Again, we have to move ownership if the `count` into the environment closure.
+        // Again, we have to move ownership of the `count` into the environment closure.
         c.register(move |val| {
             // In here, all we have is a shared reference of our environment. But that's good enough for the `get` and `set` of the cell!
             //@ At run-time, the `Cell` will be almost entirely compiled away, so this becomes pretty much equivalent to the version
@@ -166,4 +166,4 @@ fn demo_mut(c: &mut CallbacksMut) {
 // **Exercise 12.1**: Write some piece of code using only the available, public interface of `CallbacksMut` such that a reentrant call to a closure
 // is happening, and the program panics because the `RefCell` refuses to hand out a second mutable borrow of the closure's environment.
 
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