mirror of https://github.com/OpenTTD/OpenTTD
Codechange: Detemplatise uint64_t version of GetNextParameters(). (#13488)
This ensures the visitor is not duplicated for the different types pass to GetNextParamters<T>(), which now is only concerned with casting the result.pull/13472/head
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@ -80,16 +80,28 @@ public:
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* will be read.
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* will be read.
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* @return The next parameter's value.
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* @return The next parameter's value.
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*/
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*/
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template <typename T>
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uint64_t GetNextParameter()
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T GetNextParameter()
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{
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{
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struct visitor {
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struct visitor {
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uint64_t operator()(const uint64_t &arg) { return arg; }
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uint64_t operator()(const uint64_t &arg) { return arg; }
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uint64_t operator()(const std::string &) { throw std::out_of_range("Attempt to read string parameter as integer"); }
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uint64_t operator()(const std::string &) { throw std::out_of_range("Attempt to read string parameter as integer"); }
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};
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};
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const auto ¶m = GetNextParameterReference();
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const auto ¶m = this->GetNextParameterReference();
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return static_cast<T>(std::visit(visitor{}, param.data));
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return std::visit(visitor{}, param.data);
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}
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/**
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* Get the next parameter from our parameters.
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* This updates the offset, so the next time this is called the next parameter
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* will be read.
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* @tparam T The return type of the parameter.
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* @return The next parameter's value.
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*/
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template <typename T>
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T GetNextParameter()
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{
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return static_cast<T>(this->GetNextParameter());
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}
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}
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/**
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/**
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