Heap bonus!

src/machine.rs

@@ -12,6 +12,9 @@ use Result;
 use std::sync::Mutex;
 use std::rc::Rc;
 
+#[cfg(feature = "bonus:heap")]
+use heap::Heap;
+
 const MAGIC_HEADER:u32 = 0x1DEA_DFAD;
 const ANTI_BS_SIZE:usize = 0xFFFF;
 
@@ -23,6 +26,9 @@ pub struct Machine {
     pub frame: Vec<Frame>,
     pub net: NetStack,
 
+    #[cfg(feature = "bonus:heap")]
+    pub heap: Heap,
+
     pub stream_in: Box<Read>,
     pub stream_out: Rc<Mutex<Write>>,
 
@@ -36,9 +42,13 @@ impl Machine {
             pool,
             block,
             frame: vec![Frame::new(ANTI_BS_SIZE)],
-            net: NetStack::new(),
             stream_in: Box::new(::std::io::stdin()),
             stream_out: Rc::new(Mutex::new(::std::io::stdout())),
+
+            net: NetStack::new(),
+
+            #[cfg(feature = "bonus:heap")]
+            heap: Heap::new(),
         }
     }