+ /// resync - This is called when the SmallVector we're appending to is changed
+ /// outside of the raw_svector_ostream's control. It is only safe to do this
+ /// if the raw_svector_ostream has previously been flushed.
+ void resync();
+
+ /// str - Flushes the stream contents to the target vector and return a
+ /// StringRef for the vector contents.
+ StringRef str();
+};
+
+/// raw_null_ostream - A raw_ostream that discards all output.
+class raw_null_ostream : public raw_ostream {
+ /// write_impl - See raw_ostream::write_impl.
+ virtual void write_impl(const char *Ptr, size_t size);
+
+ /// current_pos - Return the current position within the stream, not
+ /// counting the bytes currently in the buffer.
+ virtual uint64_t current_pos() const;
+
+public:
+ explicit raw_null_ostream() {}
+ ~raw_null_ostream();