[clang] Fix redirection behaviour for cached FileEntryRef
In 6a79e2ff1989b we changed Filemanager::getEntryRef() to return the
redirecting FileEntryRef instead of looking through the redirection.
This commit fixes the case when looking up a cached file path to also
return the redirecting FileEntryRef. This mainly affects the behaviour
of calling getNameAsRequested() on the resulting entry ref.
Differential Revision: https://reviews.llvm.org/D131273
GitOrigin-RevId: d038bb196c51dcf80cbe771f4229b4e227c6c5b6
diff --git a/lib/Basic/FileManager.cpp b/lib/Basic/FileManager.cpp
index cb71976..4ef2535 100644
--- a/lib/Basic/FileManager.cpp
+++ b/lib/Basic/FileManager.cpp
@@ -212,13 +212,7 @@
if (!SeenFileInsertResult.first->second)
return llvm::errorCodeToError(
SeenFileInsertResult.first->second.getError());
- // Construct and return and FileEntryRef, unless it's a redirect to another
- // filename.
- FileEntryRef::MapValue Value = *SeenFileInsertResult.first->second;
- if (LLVM_LIKELY(Value.V.is<FileEntry *>()))
- return FileEntryRef(*SeenFileInsertResult.first);
- return FileEntryRef(*reinterpret_cast<const FileEntryRef::MapEntry *>(
- Value.V.get<const void *>()));
+ return FileEntryRef(*SeenFileInsertResult.first);
}
// We've not seen this before. Fill it in.
diff --git a/unittests/Basic/FileManagerTest.cpp b/unittests/Basic/FileManagerTest.cpp
index 419c497..6fe4a3d 100644
--- a/unittests/Basic/FileManagerTest.cpp
+++ b/unittests/Basic/FileManagerTest.cpp
@@ -340,6 +340,7 @@
auto F1Again = manager.getFileRef("dir/f1.cpp");
auto F1Also = manager.getFileRef("dir/f1-also.cpp");
auto F1Redirect = manager.getFileRef("dir/f1-redirect.cpp");
+ auto F1RedirectAgain = manager.getFileRef("dir/f1-redirect.cpp");
auto F2 = manager.getFileRef("dir/f2.cpp");
// Check Expected<FileEntryRef> for error.
@@ -347,6 +348,7 @@
ASSERT_FALSE(!F1Also);
ASSERT_FALSE(!F1Again);
ASSERT_FALSE(!F1Redirect);
+ ASSERT_FALSE(!F1RedirectAgain);
ASSERT_FALSE(!F2);
// Check names.
@@ -354,6 +356,7 @@
EXPECT_EQ("dir/f1.cpp", F1Again->getName());
EXPECT_EQ("dir/f1-also.cpp", F1Also->getName());
EXPECT_EQ("dir/f1.cpp", F1Redirect->getName());
+ EXPECT_EQ("dir/f1.cpp", F1RedirectAgain->getName());
EXPECT_EQ("dir/f2.cpp", F2->getName());
EXPECT_EQ("dir/f1.cpp", F1->getNameAsRequested());
@@ -363,6 +366,7 @@
EXPECT_EQ(&F1->getFileEntry(), *F1);
EXPECT_EQ(*F1, &F1->getFileEntry());
EXPECT_EQ(&F1->getFileEntry(), &F1Redirect->getFileEntry());
+ EXPECT_EQ(&F1->getFileEntry(), &F1RedirectAgain->getFileEntry());
EXPECT_NE(&F2->getFileEntry(), *F1);
EXPECT_NE(*F1, &F2->getFileEntry());
@@ -371,6 +375,7 @@
EXPECT_EQ(*F1, *F1Again);
EXPECT_EQ(*F1, *F1Redirect);
EXPECT_EQ(*F1Also, *F1Redirect);
+ EXPECT_EQ(*F1, *F1RedirectAgain);
EXPECT_NE(*F2, *F1);
EXPECT_NE(*F2, *F1Also);
EXPECT_NE(*F2, *F1Again);
@@ -381,6 +386,7 @@
EXPECT_FALSE(F1->isSameRef(*F1Redirect));
EXPECT_FALSE(F1->isSameRef(*F1Also));
EXPECT_FALSE(F1->isSameRef(*F2));
+ EXPECT_TRUE(F1Redirect->isSameRef(*F1RedirectAgain));
}
// getFile() Should return the same entry as getVirtualFile if the file actually