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Initial support for export to JSON

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This commit is contained in:
Jason Turner
2015-09-20 16:19:11 -06:00
parent 8024edeadf
commit 85ac1052dd
3 changed files with 96 additions and 2 deletions
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16
include/chaiscript/dispatchkit/boxed_number.hpp
View File

@@ -100,6 +100,7 @@ namespace chaiscript
:(Common_Types::t_uint64);
}
static Common_Types get_common_type(const Boxed_Value &t_bv)
{
const Type_Info &inp_ = t_bv.get_type_info();
@@ -513,6 +514,21 @@ namespace chaiscript
validate_boxed_number(bv);
}
static bool is_floating_point(const Boxed_Value &t_bv)
{
const Type_Info &inp_ = t_bv.get_type_info();
if (inp_ == typeid(double)) {
return true;
} else if (inp_ == typeid(long double)) {
return true;
} else if (inp_ == typeid(float)) {
return true;
} else {
return false;
}
}
Boxed_Number get_as(const Type_Info &inp_) const
{
if (inp_.bare_equal_type_info(typeid(int))) {

4
include/chaiscript/utility/json.hpp
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@@ -199,10 +199,10 @@ class JSON
JSON( T b, typename enable_if<is_same<T,bool>::value>::type* = 0 ) : Internal( b ), Type( Class::Boolean ){}
template <typename T>
JSON( T i, typename enable_if<is_integral<T>::value && !is_same<T,bool>::value>::type* = 0 ) : Internal( (long)i ), Type( Class::Integral ){}
JSON( T i, typename enable_if<is_integral<T>::value && !is_same<T,bool>::value>::type* = 0 ) : Internal( long(i) ), Type( Class::Integral ){}
template <typename T>
JSON( T f, typename enable_if<is_floating_point<T>::value>::type* = 0 ) : Internal( (double)f ), Type( Class::Floating ){}
JSON( T f, typename enable_if<is_floating_point<T>::value>::type* = 0 ) : Internal( double(f) ), Type( Class::Floating ){}
template <typename T>
JSON( T s, typename enable_if<is_convertible<T,string>::value>::type* = 0 ) : Internal( string( s ) ), Type( Class::String ){}

78
include/chaiscript/utility/json_wrap.hpp
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@@ -66,6 +66,84 @@ namespace chaiscript
return from_json( json::JSON::Load(t_json) );
}
static json::JSON to_json_object(const Boxed_Value &t_bv)
{
try {
const std::map<std::string, Boxed_Value> m = chaiscript::boxed_cast<const std::map<std::string, Boxed_Value> &>(t_bv);
json::JSON obj;
for (const auto &o : m)
{
obj[o.first] = to_json_object(o.second);
}
return obj;
} catch (const chaiscript::exception::bad_boxed_cast &) {
// not a map
}
try {
const std::vector<Boxed_Value> v = chaiscript::boxed_cast<const std::vector<Boxed_Value> &>(t_bv);
json::JSON obj;
for (size_t i = 0; i < v.size(); ++i)
{
obj[i] = to_json_object(v[i]);
}
return obj;
} catch (const chaiscript::exception::bad_boxed_cast &) {
// not a vector
}
try {
Boxed_Number bn(t_bv);
json::JSON obj;
if (Boxed_Number::is_floating_point(t_bv))
{
obj = bn.get_as<double>();
} else {
obj = bn.get_as<long>();
}
} catch (const chaiscript::detail::exception::bad_any_cast &) {
// not a number
}
try {
bool b = boxed_cast<bool>(t_bv);
json::JSON obj;
obj = b;
return obj;
} catch (const chaiscript::exception::bad_boxed_cast &) {
// not a bool
}
try {
std::string s = boxed_cast<std::string>(t_bv);
json::JSON obj;
obj = s;
return obj;
} catch (const chaiscript::exception::bad_boxed_cast &) {
// not a string
}
try {
const chaiscript::dispatch::Dynamic_Object &o = boxed_cast<const dispatch::Dynamic_Object &>(t_bv);
json::JSON obj;
for (const auto &attr : o.get_attrs())
{
obj[attr.first] = to_json_object(attr.second);
}
return obj;
} catch (const chaiscript::exception::bad_boxed_cast &) {
// not a dynamic object
}
throw std::runtime_error("Unknown object type to convert to JSON");
}
};