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Merge pull request #166 from an-tao/dev

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Add some new overload versions of the getHandlerArgumentValue() function
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An Tao 2019-05-31 17:59:49 +08:00 committed by GitHub
commit 433fdafd55
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1 changed files with 55 additions and 7 deletions
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62
lib/inc/drogon/HttpBinder.h
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@ -140,12 +140,52 @@ class HttpBinder : public HttpBinderBase
ss >> value;
}
}
void getHandlerArgumentValue(std::string &value, std::string &&p)
{
value = std::move(p);
}
void getHandlerArgumentValue(int &value, std::string &&p)
{
value = std::stoi(p);
}
void getHandlerArgumentValue(long &value, std::string &&p)
{
value = std::stol(p);
}
void getHandlerArgumentValue(long long &value, std::string &&p)
{
value = std::stoll(p);
}
void getHandlerArgumentValue(unsigned long &value, std::string &&p)
{
value = std::stoul(p);
}
void getHandlerArgumentValue(unsigned long long &value, std::string &&p)
{
value = std::stoull(p);
}
void getHandlerArgumentValue(float &value, std::string &&p)
{
value = std::stof(p);
}
void getHandlerArgumentValue(double &value, std::string &&p)
{
value = std::stod(p);
}
void getHandlerArgumentValue(long double &value, std::string &&p)
{
value = std::stold(p);
}
template <typename... Values, std::size_t Boundary = argument_count>
typename std::enable_if<(sizeof...(Values) < Boundary), void>::type run(
std::list<std::string> &pathArguments,
@ -153,7 +193,7 @@ class HttpBinder : public HttpBinderBase
std::function<void(const HttpResponsePtr &)> &&callback,
Values &&... values)
{
// call this function recursively until parameter's count equals to the
// Call this function recursively until parameter's count equals to the
// count of target function parameters
static_assert(
BinderArgTypeTraits<nth_argument_type<sizeof...(Values)>>::isValid,
@ -166,7 +206,15 @@ class HttpBinder : public HttpBinderBase
{
std::string v = std::move(pathArguments.front());
pathArguments.pop_front();
getHandlerArgumentValue(value, std::move(v));
try
{
getHandlerArgumentValue(value, std::move(v));
}
catch (...)
{
LOG_ERROR << "Error converting string \"" << v << "\" to the "
<< sizeof...(Values) + 1 << "th argument";
}
}
run(pathArguments,
@ -194,7 +242,7 @@ class HttpBinder : public HttpBinderBase
{
static auto &obj = getControllerObj<typename traits::class_type>();
(obj.*_func)(req, std::move(callback), std::move(values)...);
};
}
template <typename... Values,
bool isClassFunction = traits::isClassFunction,
bool isDrObjectClass = traits::isDrObjectClass>
@ -206,7 +254,7 @@ class HttpBinder : public HttpBinderBase
static auto objPtr =
DrClassMap::getSingleInstance<typename traits::class_type>();
(*objPtr.*_func)(req, std::move(callback), std::move(values)...);
};
}
template <typename... Values,
bool isClassFunction = traits::isClassFunction>
typename std::enable_if<!isClassFunction, void>::type callFunction(
@ -215,7 +263,7 @@ class HttpBinder : public HttpBinderBase
Values &&... values)
{
_func(req, std::move(callback), std::move(values)...);
};
}
};
} // namespace internal