adamdebreceni commented on a change in pull request #900:
URL: https://github.com/apache/nifi-minifi-cpp/pull/900#discussion_r486855212
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File path: extensions/bustache/ApplyTemplate.h
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@@ -61,7 +61,7 @@ class ApplyTemplate : public core::Processor {
class WriteCallback : public OutputStreamCallback {
public:
WriteCallback(const std::string &templateFile, const
std::shared_ptr<core::FlowFile> &flow_file);
- int64_t process(std::shared_ptr<io::BaseStream> stream);
+ int64_t process(const std::shared_ptr<io::BaseStream>& stream);
Review comment:
I would say, that using `const shared_ptr<>&` is certainly an
improvement, as @lordgamez said it does not force us to take ownership, and it
is agreement with the proliferation of managed pointers in the rest of the
system (so it lets us call into interfaces expecting a managed ptr), I don't
have a strong opinion about it though, because I plan on removing the whole
`*StreamCallback` stuff, so if you feel like it should be changed, decide which
one it should be:
1. `shared_ptr<BaseStream>`
2. `const shared_ptr<BaseStream>&`
3. `BaseStream&`
4. `BaseStream*`
5. `gsl::not_null<BaseStream*>`
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