static Variant dynamic_to_variant(const folly::dynamic& v) {
switch (v.type()) {
case folly::dynamic::Type::NULLT:
return init_null();
case folly::dynamic::Type::BOOL:
return v.asBool();
case folly::dynamic::Type::DOUBLE:
return v.asDouble();
case folly::dynamic::Type::INT64:
return v.asInt();
case folly::dynamic::Type::STRING:
return v.data();
case folly::dynamic::Type::ARRAY:
case folly::dynamic::Type::OBJECT:
ArrayInit arr_init(v.size(), ArrayInit::Mixed{});
for (auto& item : v.items()) {
arr_init.add(dynamic_to_variant(item.first),
dynamic_to_variant(item.second));
}
Array ret = arr_init.toArray();
// Sort the array since folly::dynamic has a tendency to iterate from
// back to front. This way a var_dump of the array, for example, looks
// ordered.
ret.sort(Array::SortNaturalAscending, true, false);
return ret;
}
not_reached();
}
fbstring phpSerialize(const folly::dynamic& d) {
if (d.isNull()) {
return "N;";
}
if (d.isBool()) {
return d.asBool() ? "b:1;" : "b:0;";
}
if (d.isInt()) {
return "i:" + d.asString() + ";";
}
if (d.isDouble()) {
return "d:" + d.asString() + ";";
}
if (d.isString()) {
auto str = d.asString();
return folly::to<fbstring>("s:", str.size(), ":\"", str, "\";");
}
if (d.isArray()) {
fbstring ret = folly::to<fbstring>("a:", d.size(), ":{");
int i = 0;
for (auto &v : d) {
ret += folly::to<fbstring>("i:", i, ";", phpSerialize(v));
}
return ret + "};";
}
if (d.isObject()) {
fbstring ret = folly::to<fbstring>("a:", d.size(), ":{");
int nextindex = 0;
for (auto &k : d.keys()) {
if (k.isNull()) {
ret += "i:0;";
if (nextindex <= 0) {
nextindex = 1;
}
} else if (k.isInt() || k.isDouble()) {
int i = k.asInt();
ret += folly::to<fbstring>("i:", i, ";");
if (nextindex <= i) {
nextindex = i + 1;
}
} else if (k.isString()) {
ret += folly::to<fbstring>("s:", k.size(), ":\"",
escapeCpp(k.asString()), "\";");
} else {
/* Should never be reached, but cover it to be safe */
ret += folly::to<fbstring>("i:", nextindex++, ";");
}
ret += phpSerialize(d[k]);
}
return ret + "};";
}
throw std::logic_error("Unhandled dynamic type in php serialization");
return "N;";
}
static std::string dynamic_to_std_string(const folly::dynamic& v) {
switch (v.type()) {
case folly::dynamic::Type::NULLT:
case folly::dynamic::Type::ARRAY:
case folly::dynamic::Type::OBJECT:
return "";
case folly::dynamic::Type::BOOL:
return std::to_string(v.asBool());
case folly::dynamic::Type::DOUBLE:
return std::to_string(v.asDouble());
case folly::dynamic::Type::INT64:
return std::to_string(v.asInt());
case folly::dynamic::Type::STRING:
return v.data();
}
not_reached();
}
static Variant dynamic_to_variant(const folly::dynamic& v) {
switch (v.type()) {
case folly::dynamic::Type::NULLT:
return init_null_variant;
case folly::dynamic::Type::BOOL:
return v.asBool();
case folly::dynamic::Type::DOUBLE:
return v.asDouble();
case folly::dynamic::Type::INT64:
return v.asInt();
case folly::dynamic::Type::STRING:
return v.data();
case folly::dynamic::Type::ARRAY:
case folly::dynamic::Type::OBJECT:
ArrayInit ret(v.size(), ArrayInit::Mixed{});
for (auto& item : v.items()) {
ret.add(dynamic_to_variant(item.first),
dynamic_to_variant(item.second));
}
return ret.toArray();
}
not_reached();
}