remove FILE* usage from SBStream.i

Summary:
This patch removes FILE* and replaces it with SBFile and FileSP the
SWIG interface for `SBStream.i`.   And this is the last one.   With
this change, nothing in the python API will can access a FILE* method
on the C++ side.

Reviewers: JDevlieghere, jasonmolenda, labath

Reviewed By: labath

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D68960

llvm-svn: 374924

Author: lawrence-danna-apple

lldb/include/lldb/API/SBStream.h

@@ -39,6 +39,10 @@ class LLDB_API SBStream {
 
   void RedirectToFile(const char *path, bool append);
 
+  void RedirectToFile(lldb::SBFile file);
+
+  void RedirectToFile(lldb::FileSP file);
+
   void RedirectToFileHandle(FILE *fh, bool transfer_fh_ownership);
 
   void RedirectToFileDescriptor(int fd, bool transfer_fh_ownership);

lldb/packages/Python/lldbsuite/test/python_api/file_handle/TestFileHandle.py

@@ -892,3 +892,30 @@ def test_set_filehandle_none(self):
             sbf = self.debugger.GetInputFile()
             if sys.version_info.major >= 3:
                 self.assertEqual(sbf.GetFile().fileno(), 0)
+
+
+    @add_test_categories(['pyapi'])
+    def test_sbstream(self):
+
+        with open(self.out_filename, 'w') as f:
+            stream = lldb.SBStream()
+            stream.RedirectToFile(f)
+            stream.Print("zork")
+        with open(self.out_filename, 'r') as f:
+            self.assertEqual(f.read().strip(), "zork")
+
+        with open(self.out_filename, 'w') as f:
+            stream = lldb.SBStream()
+            stream.RedirectToFileHandle(f, True)
+            stream.Print("Yendor")
+        with open(self.out_filename, 'r') as f:
+            self.assertEqual(f.read().strip(), "Yendor")
+
+        stream = lldb.SBStream()
+        f = open(self.out_filename,  'w')
+        stream.RedirectToFile(lldb.SBFile.Create(f, borrow=False))
+        stream.Print("Frobozz")
+        stream = None
+        self.assertTrue(f.closed)
+        with open(self.out_filename, 'r') as f:
+            self.assertEqual(f.read().strip(), "Frobozz")

lldb/scripts/interface/SBStream.i

@@ -75,7 +75,18 @@ public:
     RedirectToFile (const char *path, bool append);
 
     void
-    RedirectToFileHandle (FILE *fh, bool transfer_fh_ownership);
+    RedirectToFile (lldb::SBFile file);
+
+    void
+    RedirectToFile (lldb::FileSP file);
+
+    %extend {
+        %feature("autodoc", "DEPRECATED, use RedirectToFile");
+        void
+        RedirectToFileHandle (lldb::FileSP file, bool transfer_fh_ownership) {
+            self->RedirectToFile(file);
+        }
+    }
 
     void
     RedirectToFileDescriptor (int fd, bool transfer_fh_ownership);

lldb/source/API/SBStream.cpp

@@ -9,6 +9,7 @@
 #include "lldb/API/SBStream.h"
 
 #include "SBReproducerPrivate.h"
+#include "lldb/API/SBFile.h"
 #include "lldb/Core/StreamFile.h"
 #include "lldb/Host/FileSystem.h"
 #include "lldb/Utility/Status.h"
@@ -108,8 +109,19 @@ void SBStream::RedirectToFile(const char *path, bool append) {
 void SBStream::RedirectToFileHandle(FILE *fh, bool transfer_fh_ownership) {
   LLDB_RECORD_METHOD(void, SBStream, RedirectToFileHandle, (FILE *, bool), fh,
                      transfer_fh_ownership);
+  FileSP file = std::make_unique<NativeFile>(fh, transfer_fh_ownership);
+  return RedirectToFile(file);
+}
+
+void SBStream::RedirectToFile(SBFile file) {
+  LLDB_RECORD_METHOD(void, SBStream, RedirectToFile, (SBFile), file)
+  RedirectToFile(file.GetFile());
+}
+
+void SBStream::RedirectToFile(FileSP file_sp) {
+  LLDB_RECORD_METHOD(void, SBStream, RedirectToFile, (FileSP), file_sp);
 
-  if (fh == nullptr)
+  if (!file_sp || !file_sp->IsValid())
     return;
 
   std::string local_data;
@@ -120,7 +132,7 @@ void SBStream::RedirectToFileHandle(FILE *fh, bool transfer_fh_ownership) {
       local_data = static_cast<StreamString *>(m_opaque_up.get())->GetString();
   }
 
-  m_opaque_up = std::make_unique<StreamFile>(fh, transfer_fh_ownership);
+  m_opaque_up = std::make_unique<StreamFile>(file_sp);
   m_is_file = true;
 
   // If we had any data locally in our StreamString, then pass that along to
@@ -184,6 +196,8 @@ void RegisterMethods<SBStream>(Registry &R) {
   LLDB_REGISTER_METHOD(const char *, SBStream, GetData, ());
   LLDB_REGISTER_METHOD(size_t, SBStream, GetSize, ());
   LLDB_REGISTER_METHOD(void, SBStream, RedirectToFile, (const char *, bool));
+  LLDB_REGISTER_METHOD(void, SBStream, RedirectToFile, (FileSP));
+  LLDB_REGISTER_METHOD(void, SBStream, RedirectToFile, (SBFile));
   LLDB_REGISTER_METHOD(void, SBStream, RedirectToFileHandle, (FILE *, bool));
   LLDB_REGISTER_METHOD(void, SBStream, RedirectToFileDescriptor, (int, bool));
   LLDB_REGISTER_METHOD(void, SBStream, Clear, ());