Frontend: Add support for reading named pipes as the main file.

 - The whole {File,Source}Manager is built around wanting to pre-determine the
   size of files, so we can't fit this in naturally. Instead, we handle it like
   we do STDIN, where we just replace the main file contents upfront.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167419 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/Basic/FileManager.cpp b/lib/Basic/FileManager.cpp
index c6b894c7e2..6a0fbf80b9 100644
--- a/lib/Basic/FileManager.cpp
+++ b/lib/Basic/FileManager.cpp
@@ -57,6 +57,10 @@ FileEntry::~FileEntry() {
   if (FD != -1) ::close(FD);
 }
 
+bool FileEntry::isNamedPipe() const {
+  return FileMode & S_IFIFO;
+}
+
 //===----------------------------------------------------------------------===//
 // Windows.
 //===----------------------------------------------------------------------===//