From 15dd4bdaf460a2cacee812e66c0d8f2cd0cbb989 Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Tue, 15 Dec 2020 17:16:54 +0100
Subject: [PATCH] fix: do not require alloc crate

Using `core::alloc` instead of `alloc::alloc` removes the need to
include `alloc` in this library. This enables users of this crate to use
`Heap` without `alloc` in `no_std`.
---
 src/hole.rs | 2 +-
 src/lib.rs  | 8 +++-----
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/src/hole.rs b/src/hole.rs
index aee2abe..a1db1c5 100644
--- a/src/hole.rs
+++ b/src/hole.rs
@@ -1,4 +1,4 @@
-use alloc::alloc::Layout;
+use core::alloc::Layout;
 use core::mem::{align_of, size_of};
 use core::ptr::NonNull;
 
diff --git a/src/lib.rs b/src/lib.rs
index aa76463..99a4378 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -12,13 +12,11 @@ extern crate std;
 #[cfg(feature = "use_spin")]
 extern crate spinning_top;
 
-extern crate alloc;
-
-use alloc::alloc::Layout;
-#[cfg(feature = "alloc_ref")]
-use alloc::alloc::{AllocError, Allocator};
 #[cfg(feature = "use_spin")]
 use core::alloc::GlobalAlloc;
+use core::alloc::Layout;
+#[cfg(feature = "alloc_ref")]
+use core::alloc::{AllocError, Allocator};
 use core::mem;
 #[cfg(feature = "use_spin")]
 use core::ops::Deref;