commit 4382e44c42d2a1edf92a9ef11dbf34843025e64f
author Ryan Mitchell <rtmitchell@google.com> Wed Jul 14 12:53:01 2021 -0700
committer Ryan Mitchell <rtmitchell@google.com> Thu Jul 15 13:42:13 2021 -0700
tree f4b2855b1df909e526a298300ee55f79a65ccc79
parent 3947c9b56c2e79d76b6941fb5bdcdf25e359b0a4

Replace Maybe with std::optional

With c++17, std::optional provides the functionality that Maybe
provided.

Bug: 183215655
Test: aapt2_tests
Change-Id: I62bb9c2fa4985dc5217a6ed153df92b85ad9a034

tools/aapt2/io/FileSystem.cpp

diff --git a/tools/aapt2/io/FileSystem.cpp b/tools/aapt2/io/FileSystem.cpp
index e15f935..fc2e45e 100644
--- a/tools/aapt2/io/FileSystem.cpp
+++ b/tools/aapt2/io/FileSystem.cpp
@@ -21,11 +21,10 @@
 #include "android-base/errors.h"
 #include "androidfw/StringPiece.h"
 #include "utils/FileMap.h"
-
 #include "Source.h"
 #include "io/FileStream.h"
 #include "util/Files.h"
-#include "util/Maybe.h"
+
 #include "util/Util.h"
 
 using ::android::StringPiece;
@@ -38,7 +37,7 @@
 
 std::unique_ptr<IData> RegularFile::OpenAsData() {
   android::FileMap map;
-  if (Maybe<android::FileMap> map = file::MmapPath(source_.path, nullptr)) {
+  if (std::optional<android::FileMap> map = file::MmapPath(source_.path, nullptr)) {
     if (map.value().getDataPtr() && map.value().getDataLength() > 0) {
       return util::make_unique<MmappedData>(std::move(map.value()));
     }