mirror of https://github.com/odrling/Aegisub
Rewrite the array config visitor so that it doesn't need the OptionValueList base class
Originally committed to SVN as r5817.
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84c545b978
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@ -48,55 +48,59 @@ void ConfigVisitor::Visit(const json::Object& object) {
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}
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}
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template<class T>
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static inline T convert_unknown(json::UnknownElement const& ue) {
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return ue;
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}
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template<>
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inline int64_t convert_unknown(json::UnknownElement const& ue) {
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return (int64_t)(double)ue;
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}
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template<class OptionValueType, class ValueType>
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static OptionValue *read_array(json::Array const& src, std::string const& array_type, std::string const& name, void (OptionValueType::*set_list)(const std::vector<ValueType>&)) {
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std::vector<ValueType> arr;
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arr.reserve(src.size());
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for (json::Array::const_iterator it = src.begin(); it != src.end(); ++it) {
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json::Object const& obj = *it;
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if (obj.size() != 1)
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throw OptionJsonValueArray("Invalid array member");
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if (obj.begin()->first != array_type)
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throw OptionJsonValueArray("Attempt to insert value into array of wrong type");
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arr.push_back(convert_unknown<ValueType>(obj.begin()->second));
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}
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OptionValueType *ret = new OptionValueType(name);
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(ret->*set_list)(arr);
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return ret;
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}
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void ConfigVisitor::Visit(const json::Array& array) {
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OptionValueList *array_list = NULL;
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if (array.empty())
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throw OptionJsonValueArray("Cannot infer the type of an empty array");
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json::Array::const_iterator index(array.begin()), indexEnd(array.end());
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json::Object const& front = array.front();
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if (front.size() != 1)
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throw OptionJsonValueArray("Invalid array member");
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for (; index != indexEnd; ++index) {
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const json::Object& index_array = *index;
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const std::string& array_type = front.begin()->first;
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json::Object::const_iterator it(index_array.begin()), index_objectEnd(index_array.end());
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for (; it != index_objectEnd; ++it) {
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const std::string& member_name = it->first;
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// This can only happen once since a list must always be of the same
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// type, if we try inserting another type into it we want it to fail.
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if (!array_list) {
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if (member_name == "string")
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array_list = new OptionValueListString(name);
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else if (member_name == "int")
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array_list = new OptionValueListInt(name);
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else if (member_name == "double")
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array_list = new OptionValueListDouble(name);
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else if (member_name == "bool")
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array_list = new OptionValueListBool(name);
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else if (member_name == "colour")
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array_list = new OptionValueListColour(name);
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else
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throw OptionJsonValueArray("Array type not handled");
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}
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try {
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if (member_name == "string")
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array_list->InsertString(it->second);
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else if (member_name == "int")
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array_list->InsertInt((int64_t)(double)it->second);
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else if (member_name == "double")
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array_list->InsertDouble(it->second);
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else if (member_name == "bool")
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array_list->InsertBool(it->second);
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else if (member_name == "colour")
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array_list->InsertColour(it->second);
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} catch (agi::Exception&) {
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delete array_list;
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throw OptionJsonValueArray("Attempt to insert value into array of wrong type");
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}
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} // for index_object
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} // for index
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if (array_list) AddOptionValue(array_list);
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if (array_type == "string")
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AddOptionValue(read_array(array, array_type, name, &OptionValueListString::SetListString));
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else if (array_type == "int")
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AddOptionValue(read_array(array, array_type, name, &OptionValueListInt::SetListInt));
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else if (array_type == "double")
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AddOptionValue(read_array(array, array_type, name, &OptionValueListDouble::SetListDouble));
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else if (array_type == "bool")
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AddOptionValue(read_array(array, array_type, name, &OptionValueListBool::SetListBool));
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else if (array_type == "colour")
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AddOptionValue(read_array(array, array_type, name, &OptionValueListColour::SetListColour));
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else
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throw OptionJsonValueArray("Array type not handled");
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}
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@ -38,9 +38,6 @@ DEFINE_SIMPLE_EXCEPTION_NOINNER(OptionValueErrorNotFound, OptionValueError, "opt
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DEFINE_SIMPLE_EXCEPTION_NOINNER(OptionValueErrorInvalidType, OptionValueError, "options/invalid_type")
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DEFINE_SIMPLE_EXCEPTION_NOINNER(OptionValueErrorInvalidListType, OptionValueError, "options/array/invalid_type")
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class ConfigVisitor;
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/// @class OptionValue
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/// Holds an actual option.
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class OptionValue {
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@ -143,24 +140,11 @@ CONFIG_OPTIONVALUE(Double, double)
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CONFIG_OPTIONVALUE(Colour, Colour)
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CONFIG_OPTIONVALUE(Bool, bool)
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class OptionValueList: public OptionValue {
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friend class ConfigVisitor;
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virtual void InsertString(const std::string val) { throw ListTypeError("string", " insert "); }
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virtual void InsertInt(const int64_t val) { throw ListTypeError("int", " insert "); }
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virtual void InsertDouble(const double val) { throw ListTypeError("double", " insert "); }
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virtual void InsertColour(const Colour val) { throw ListTypeError("colour", " insert "); }
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virtual void InsertBool(const bool val) { throw ListTypeError("bool", " insert "); }
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};
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#define CONFIG_OPTIONVALUE_LIST(type_name, type) \
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class OptionValueList##type_name : public OptionValueList { \
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class OptionValueList##type_name : public OptionValue { \
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std::vector<type> array; \
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std::vector<type> array_default; \
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std::string name; \
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void Insert##type_name(const type val) { array.push_back(val); } \
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public: \
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virtual std::string GetString() const { return "";} \
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OptionValueList##type_name(std::string member_name): name(member_name) {} \
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