/*
- * Copyright 2014 Facebook, Inc.
+ * Copyright 2015 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
namespace folly {
struct TypeError : std::runtime_error {
- explicit TypeError(const std::string& expected, dynamic::Type actual)
- : std::runtime_error(to<std::string>("TypeError: expected dynamic "
- "type `", expected, '\'', ", but had type `",
- dynamic::typeName(actual), '\''))
- {}
+ explicit TypeError(const std::string& expected, dynamic::Type actual);
explicit TypeError(const std::string& expected,
- dynamic::Type actual1, dynamic::Type actual2)
- : std::runtime_error(to<std::string>("TypeError: expected dynamic "
- "types `", expected, '\'', ", but had types `",
- dynamic::typeName(actual1), "' and `", dynamic::typeName(actual2),
- '\''))
- {}
+ dynamic::Type actual1, dynamic::Type actual2);
+ ~TypeError();
};
*this = o;
}
-inline dynamic::dynamic(dynamic&& o)
+inline dynamic::dynamic(dynamic&& o) noexcept
: type_(NULLT)
{
*this = std::move(o);
}
-inline dynamic::~dynamic() { destroy(); }
+inline dynamic::~dynamic() noexcept { destroy(); }
template<class T>
dynamic::dynamic(T t) {
inline int64_t dynamic::asInt() const { return asImpl<int64_t>(); }
inline bool dynamic::asBool() const { return asImpl<bool>(); }
+inline const fbstring& dynamic::getString() const { return get<fbstring>(); }
+inline double dynamic::getDouble() const { return get<double>(); }
+inline int64_t dynamic::getInt() const { return get<int64_t>(); }
+inline bool dynamic::getBool() const { return get<bool>(); }
+
+inline fbstring& dynamic::getString() { return get<fbstring>(); }
+inline double& dynamic::getDouble() { return get<double>(); }
+inline int64_t& dynamic::getInt() { return get<int64_t>(); }
+inline bool& dynamic::getBool() { return get<bool>(); }
+
inline const char* dynamic::data() const { return get<fbstring>().data(); }
inline const char* dynamic::c_str() const { return get<fbstring>().c_str(); }
+inline StringPiece dynamic::stringPiece() const { return get<fbstring>(); }
template<class T>
struct dynamic::CompareOp {
}
};
-inline bool dynamic::operator<(dynamic const& o) const {
- if (UNLIKELY(type_ == OBJECT || o.type_ == OBJECT)) {
- throw TypeError("object", type_);
- }
- if (type_ != o.type_) {
- return type_ < o.type_;
- }
-
-#define FB_X(T) return CompareOp<T>::comp(*getAddress<T>(), \
- *o.getAddress<T>())
- FB_DYNAMIC_APPLY(type_, FB_X);
-#undef FB_X
-}
-
-inline bool dynamic::operator==(dynamic const& o) const {
- if (type() != o.type()) {
- if (isNumber() && o.isNumber()) {
- auto& integ = isInt() ? *this : o;
- auto& doubl = isInt() ? o : *this;
- return integ.asInt() == doubl.asDouble();
- }
- return false;
- }
-
-#define FB_X(T) return *getAddress<T>() == *o.getAddress<T>();
- FB_DYNAMIC_APPLY(type_, FB_X);
-#undef FB_X
-}
-
inline dynamic& dynamic::operator+=(dynamic const& o) {
if (type() == STRING && o.type() == STRING) {
*getAddress<fbstring>() += *o.getAddress<fbstring>();
return *this;
}
-inline dynamic& dynamic::operator=(dynamic const& o) {
- if (&o != this) {
- destroy();
-#define FB_X(T) new (getAddress<T>()) T(*o.getAddress<T>())
- FB_DYNAMIC_APPLY(o.type_, FB_X);
-#undef FB_X
- type_ = o.type_;
- }
- return *this;
-}
-
-inline dynamic& dynamic::operator=(dynamic&& o) {
- if (&o != this) {
- destroy();
-#define FB_X(T) new (getAddress<T>()) T(std::move(*o.getAddress<T>()))
- FB_DYNAMIC_APPLY(o.type_, FB_X);
-#undef FB_X
- type_ = o.type_;
- }
- return *this;
-}
-
-inline dynamic& dynamic::operator[](dynamic const& k) {
- if (!isObject() && !isArray()) {
- throw TypeError("object/array", type());
- }
- if (isArray()) {
- return at(k);
- }
- auto& obj = get<ObjectImpl>();
- auto ret = obj.insert({k, nullptr});
- return ret.first->second;
-}
-
inline dynamic const& dynamic::operator[](dynamic const& idx) const {
return at(idx);
}
-inline dynamic dynamic::getDefault(const dynamic& k, const dynamic& v) const {
- auto& obj = get<ObjectImpl>();
- auto it = obj.find(k);
- return it == obj.end() ? v : it->second;
-}
-
-inline dynamic&& dynamic::getDefault(const dynamic& k, dynamic&& v) const {
- auto& obj = get<ObjectImpl>();
- auto it = obj.find(k);
- if (it != obj.end()) {
- v = it->second;
- }
-
- return std::move(v);
-}
-
template<class K, class V> inline dynamic& dynamic::setDefault(K&& k, V&& v) {
auto& obj = get<ObjectImpl>();
return obj.insert(std::make_pair(std::forward<K>(k),
return const_cast<dynamic*>(const_cast<dynamic const*>(this)->get_ptr(idx));
}
-inline const dynamic* dynamic::get_ptr(dynamic const& idx) const {
- if (auto* parray = get_nothrow<Array>()) {
- if (!idx.isInt()) {
- throw TypeError("int64", idx.type());
- }
- if (idx >= parray->size()) {
- return nullptr;
- }
- return &(*parray)[idx.asInt()];
- } else if (auto* pobject = get_nothrow<ObjectImpl>()) {
- auto it = pobject->find(idx);
- if (it == pobject->end()) {
- return nullptr;
- }
- return &it->second;
- } else {
- throw TypeError("object/array", type());
- }
-}
-
inline dynamic& dynamic::at(dynamic const& idx) {
return const_cast<dynamic&>(const_cast<dynamic const*>(this)->at(idx));
}
-inline dynamic const& dynamic::at(dynamic const& idx) const {
- if (auto* parray = get_nothrow<Array>()) {
- if (!idx.isInt()) {
- throw TypeError("int64", idx.type());
- }
- if (idx >= parray->size()) {
- throw std::out_of_range("out of range in dynamic array");
- }
- return (*parray)[idx.asInt()];
- } else if (auto* pobject = get_nothrow<ObjectImpl>()) {
- auto it = pobject->find(idx);
- if (it == pobject->end()) {
- throw std::out_of_range(to<std::string>(
- "couldn't find key ", idx.asString(), " in dynamic object"));
- }
- return it->second;
- } else {
- throw TypeError("object/array", type());
- }
-}
-
inline bool dynamic::empty() const {
if (isNull()) {
return true;
return !size();
}
-inline std::size_t dynamic::size() const {
- if (auto* ar = get_nothrow<Array>()) {
- return ar->size();
- }
- if (auto* obj = get_nothrow<ObjectImpl>()) {
- return obj->size();
- }
- if (auto* str = get_nothrow<fbstring>()) {
- return str->size();
- }
- throw TypeError("array/object", type());
-}
-
inline std::size_t dynamic::count(dynamic const& key) const {
return find(key) != items().end();
}
template<class K, class V> inline void dynamic::insert(K&& key, V&& val) {
auto& obj = get<ObjectImpl>();
- auto rv = obj.insert(std::make_pair(std::forward<K>(key),
- std::forward<V>(val)));
- if (!rv.second) {
- // note, the second use of std:forward<V>(val) is only correct
- // if the first one did not result in a move. obj[key] = val
- // would be preferrable but doesn't compile because dynamic
- // is (intentionally) not default constructable
- rv.first->second = std::forward<V>(val);
- }
+ auto rv = obj.insert({ std::forward<K>(key), nullptr });
+ rv.first->second = std::forward<V>(val);
}
inline std::size_t dynamic::erase(dynamic const& key) {
return get<Array>().erase(arr.begin() + (it - arr.begin()));
}
-inline dynamic::const_iterator
-dynamic::erase(const_iterator first, const_iterator last) {
- auto& arr = get<Array>();
- return get<Array>().erase(
- arr.begin() + (first - arr.begin()),
- arr.begin() + (last - arr.begin()));
-}
-
inline dynamic::const_key_iterator dynamic::erase(const_key_iterator it) {
return const_key_iterator(get<ObjectImpl>().erase(it.base()));
}
array.pop_back();
}
-inline std::size_t dynamic::hash() const {
- switch (type()) {
- case OBJECT:
- case ARRAY:
- case NULLT:
- throw TypeError("not null/object/array", type());
- case INT64:
- return std::hash<int64_t>()(asInt());
- case DOUBLE:
- return std::hash<double>()(asDouble());
- case BOOL:
- return std::hash<bool>()(asBool());
- case STRING:
- return std::hash<fbstring>()(asString());
- default:
- CHECK(0); abort();
- }
-}
-
//////////////////////////////////////////////////////////////////////
template<class T> struct dynamic::TypeInfo {
// Return a T* to our type, or null if we're not that type.
template<class T>
-T* dynamic::get_nothrow() {
+T* dynamic::get_nothrow() noexcept {
if (type_ != TypeInfo<T>::type) {
return nullptr;
}
}
template<class T>
-T const* dynamic::get_nothrow() const {
+T const* dynamic::get_nothrow() const noexcept {
return const_cast<dynamic*>(this)->get_nothrow<T>();
}
// Return T* for where we can put a T, without type checking. (Memory
// might be uninitialized, even.)
template<class T>
-T* dynamic::getAddress() {
+T* dynamic::getAddress() noexcept {
return GetAddrImpl<T>::get(u_);
}
template<class T>
-T const* dynamic::getAddress() const {
+T const* dynamic::getAddress() const noexcept {
return const_cast<dynamic*>(this)->getAddress<T>();
}
template<class T> struct dynamic::GetAddrImpl {};
template<> struct dynamic::GetAddrImpl<void*> {
- static void** get(Data& d) { return &d.nul; }
+ static void** get(Data& d) noexcept { return &d.nul; }
};
template<> struct dynamic::GetAddrImpl<dynamic::Array> {
- static Array* get(Data& d) { return &d.array; }
+ static Array* get(Data& d) noexcept { return &d.array; }
};
template<> struct dynamic::GetAddrImpl<bool> {
- static bool* get(Data& d) { return &d.boolean; }
+ static bool* get(Data& d) noexcept { return &d.boolean; }
};
template<> struct dynamic::GetAddrImpl<int64_t> {
- static int64_t* get(Data& d) { return &d.integer; }
+ static int64_t* get(Data& d) noexcept { return &d.integer; }
};
template<> struct dynamic::GetAddrImpl<double> {
- static double* get(Data& d) { return &d.doubl; }
+ static double* get(Data& d) noexcept { return &d.doubl; }
};
template<> struct dynamic::GetAddrImpl<fbstring> {
- static fbstring* get(Data& d) { return &d.string; }
+ static fbstring* get(Data& d) noexcept { return &d.string; }
};
template<> struct dynamic::GetAddrImpl<dynamic::ObjectImpl> {
static_assert(sizeof(ObjectImpl) <= sizeof(Data::objectBuffer),
" amount of space depending on its template parameters. This is "
"weird. Make objectBuffer bigger if you want to compile dynamic.");
- static ObjectImpl* get(Data& d) {
+ static ObjectImpl* get(Data& d) noexcept {
void* data = &d.objectBuffer;
return static_cast<ObjectImpl*>(data);
}
return const_cast<dynamic*>(this)->get<T>();
}
-inline char const* dynamic::typeName(Type t) {
-#define FB_X(T) return TypeInfo<T>::name
- FB_DYNAMIC_APPLY(t, FB_X);
-#undef FB_X
-}
-
-inline void dynamic::destroy() {
- // This short-circuit speeds up some microbenchmarks.
- if (type_ == NULLT) return;
-
-#define FB_X(T) detail::Destroy::destroy(getAddress<T>())
- FB_DYNAMIC_APPLY(type_, FB_X);
-#undef FB_X
- type_ = NULLT;
- u_.nul = nullptr;
-}
-
//////////////////////////////////////////////////////////////////////
/*
case dynamic::ARRAY:
{
int key = arg.splitIntKey();
- if (key >= 0 && key < c.size()) {
+ if (key >= 0 && size_t(key) < c.size()) {
FormatValue<dynamic>(c.at(key)).format(arg, cb);
} else{
FormatValue<V>(val_.defaultValue).format(arg, cb);
projects / folly.git / blobdiff