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Merge #12050: [trivial] Implements a virtual destructor on the BaseRequestHandler class.

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bdb3231 Implements a virtual destructor on the BaseRequestHandler class. (251)

Pull request description:

  Granted that there is no undefined behavior in the current implementation, this PR implements a virtual destructor on the BaseRequestHandler class to protect against undefined behavior in the event that an object of a potential future derived BaseRequestHandler class with a destructor is destroyed through a pointer to this base class.

  This PR also fixes "_warning: delete called on 'BaseRequestHandler' that is abstract but has non-virtual destructor [-Wdelete-non-virtual-dtor]_" warnings in environments where the project is built with the `-Wsystem-headers` flag; or environments where the `-Wdelete-non-virtual-dtor` diagnostics flag fires from system headers.

Tree-SHA512: 3c3b0797a8dbce8d8c5b244709e8bca41c4e28d5ba554a974bf7fc9128413e1098c457a00e51b21154ce6c11ce5da3071626e71d593b2550d0020bc589406eed
This commit is contained in:
Wladimir J. van der Laan 2018-02-06 18:05:11 +01:00
commit 1462bde767
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src/bitcoin-cli.cpp
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@ -198,6 +198,7 @@ static void http_error_cb(enum evhttp_request_error err, void *ctx)
class BaseRequestHandler
{
public:
virtual ~BaseRequestHandler() {}
virtual UniValue PrepareRequest(const std::string& method, const std::vector<std::string>& args) = 0;
virtual UniValue ProcessReply(const UniValue &batch_in) = 0;
};