SBFile::GetFile: convert SBFile back into python native files.

Summary:
This makes SBFile::GetFile public and adds a SWIG typemap to convert
the result back into a python native file.

If the underlying File itself came from a python file, it is returned
identically.   Otherwise a new python file object is created using
the file descriptor.

Reviewers: JDevlieghere, jasonmolenda, labath

Reviewed By: labath

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D68737

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@374911 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 13 insertions, 1 deletions

diff --git a/source/Host/common/File.cpp b/source/Host/common/File.cpp
index 2b096abdf..0f335bd02 100644
--- a/source/Host/common/File.cpp
+++ b/source/Host/common/File.cpp
@@ -39,7 +39,8 @@ using namespace lldb;
 using namespace lldb_private;
 using llvm::Expected;
 
-static Expected<const char *> GetStreamOpenModeFromOptions(uint32_t options) {
+Expected<const char *>
+File::GetStreamOpenModeFromOptions(File::OpenOptions options) {
   if (options & File::eOpenOptionAppend) {
     if (options & File::eOpenOptionRead) {
       if (options & File::eOpenOptionCanCreateNewOnly)
@@ -226,6 +227,12 @@ size_t File::PrintfVarArg(const char *format, va_list args) {
   return result;
 }
 
+Expected<File::OpenOptions> File::GetOptions() const {
+  return llvm::createStringError(
+      llvm::inconvertibleErrorCode(),
+      "GetOptions() not implemented for this File class");
+}
+
 uint32_t File::GetPermissions(Status &error) const {
   int fd = GetDescriptor();
   if (!DescriptorIsValid(fd)) {
@@ -241,6 +248,8 @@ uint32_t File::GetPermissions(Status &error) const {
   return file_stats.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
 }
 
+Expected<File::OpenOptions> NativeFile::GetOptions() const { return m_options; }
+
 int NativeFile::GetDescriptor() const {
   if (DescriptorIsValid())
     return m_descriptor;
@@ -758,3 +767,6 @@ mode_t File::ConvertOpenOptionsForPOSIXOpen(OpenOptions open_options) {
 
   return mode;
 }
+
+char File::ID = 0;
+char NativeFile::ID = 0;