From 73e151edd0cf6e7d1e418a7cc8058b45162aa9eb Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Fri, 25 Dec 2020 12:51:11 +0100
Subject: [PATCH] Kernel: Add formatter for VirtualAddress

---
 Kernel/CMakeLists.txt     |  1 +
 Kernel/VirtualAddress.cpp | 36 ++++++++++++++++++++++++++++++++++++
 Kernel/VirtualAddress.h   |  7 +++++++
 3 files changed, 44 insertions(+)
 create mode 100644 Kernel/VirtualAddress.cpp

diff --git a/Kernel/CMakeLists.txt b/Kernel/CMakeLists.txt
index 8ac692e8404..0767371ce91 100644
--- a/Kernel/CMakeLists.txt
+++ b/Kernel/CMakeLists.txt
@@ -201,6 +201,7 @@ set(KERNEL_SOURCES
     VM/Region.cpp
     VM/SharedInodeVMObject.cpp
     VM/VMObject.cpp
+    VirtualAddress.cpp
     WaitQueue.cpp
     init.cpp
     kprintf.cpp
diff --git a/Kernel/VirtualAddress.cpp b/Kernel/VirtualAddress.cpp
new file mode 100644
index 00000000000..0b3a8759c68
--- /dev/null
+++ b/Kernel/VirtualAddress.cpp
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <AK/String.h>
+#include <Kernel/VirtualAddress.h>
+
+namespace AK {
+void Formatter<VirtualAddress>::format(TypeErasedFormatParams& params, FormatBuilder& builder, const VirtualAddress& value)
+{
+    Formatter<StringView>::format(params, builder, String::formatted("V{:p}", value.get()));
+}
+
+}
diff --git a/Kernel/VirtualAddress.h b/Kernel/VirtualAddress.h
index 7b5da8d5e48..e26b8f0aeb5 100644
--- a/Kernel/VirtualAddress.h
+++ b/Kernel/VirtualAddress.h
@@ -75,3 +75,10 @@ inline const LogStream& operator<<(const LogStream& stream, VirtualAddress value
 {
     return stream << 'V' << value.as_ptr();
 }
+
+namespace AK {
+template<>
+struct Formatter<VirtualAddress> : Formatter<StringView> {
+    void format(TypeErasedFormatParams&, FormatBuilder&, const VirtualAddress&);
+};
+}