YGFloatOptional yogaStyleOptionalFloatFromDynamic(const folly::dynamic &value) {
if (value.isNumber()) {
return YGFloatOptional(value.asDouble());
} else if (value.isString()) {
const auto stringValue = value.asString();
if (stringValue == "auto") {
return YGFloatOptional();
}
}
abort();
}
std::function<void(folly::dynamic)> makeCallback(
std::weak_ptr<Instance> instance, const folly::dynamic& callbackId) {
if (!callbackId.isNumber()) {
throw std::invalid_argument("Expected callback(s) as final argument");
}
auto id = callbackId.asInt();
return [winstance = std::move(instance), id](folly::dynamic args) {
if (auto instance = winstance.lock()) {
instance->callJSCallback(id, std::move(args));
}
};
}
YGValue yogaStyleValueFromDynamic(const folly::dynamic &value) {
if (value.isNumber()) {
float x = value.asDouble();
return { x, YGUnitPoint };
} else if (value.isString()) {
const auto stringValue = value.asString();
if (stringValue == "auto") {
return { YGUndefined, YGUnitAuto };
} else {
if (stringValue.back() == '%') {
return { folly::to<float>(stringValue.substr(stringValue.length() - 1)), YGUnitPercent };
} else {
return { folly::to<float>(stringValue), YGUnitPoint };
}
}
}
return YGValueUndefined;
}