Remove ostream from class StreamBuffer

luprex/cpp/core/streambuffer.cpp

@@ -335,38 +335,6 @@ util::HashValue StreamBuffer::hash() const {
     return std::make_pair(hash1, hash2);
 }
 
-class StreamBufferWriter : public std::streambuf, public eng::opnew {
-private:
-    StreamBuffer *target_;
-public:
-    StreamBufferWriter(StreamBuffer *t) : target_(t) {}
-
-    virtual int_type overflow(int_type c) {
-    	if (c != EOF) {
-            target_->write_uint8(c);
-	    }
-        return c;
-    }
-};
-
-class StreamBufferOStream : public std::ostream, public eng::opnew {
-private:
-    StreamBufferWriter writer_;
-public:
-    StreamBufferOStream(StreamBuffer *t) : std::ostream(nullptr), writer_(t) {
-        rdbuf(&writer_);
-    }
-    virtual ~StreamBufferOStream() {
-    }
-};
-
-std::ostream &StreamBuffer::ostream() {
-    if (ostream_ == nullptr) {
-        ostream_.reset(new StreamBufferOStream(this));
-    }
-    return *ostream_;
-}
-
 int lua_writer_into_streambuffer(lua_State *L, const void* bytes, size_t sz, void* sbv) {
     StreamBuffer *sb = (StreamBuffer *)sbv;
     memcpy(sb->make_space(sz), bytes, sz);
@@ -508,11 +476,5 @@ LuaDefine(unittests_streambuffer, "", "some unit tests") {
     eqsb1.write_int32(34);
     LuaAssert(L, !eqsb1.contents_equal(&eqsb2));
     
-    // Check the OStream functionality.
-    StreamBuffer ossb;
-    ossb.ostream() << "Testing.";
-    ossb.ostream() << "Foo.";
-    LuaAssertStrEq(L, ossb.read_entire_contents(), "Testing.Foo.");
-
     return 0;
 }