/*
- * Copyright 2017 Facebook, Inc.
+ * Copyright 2017-present Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-
#pragma once
#include <functional>
#include <boost/iterator/iterator_adaptor.hpp>
#include <boost/iterator/iterator_facade.hpp>
+#include <folly/CPortability.h>
#include <folly/Conv.h>
#include <folly/Format.h>
#include <folly/Likely.h>
namespace std {
-template<>
-struct hash< ::folly::dynamic> {
+template <>
+struct hash<::folly::dynamic> {
size_t operator()(::folly::dynamic const& d) const {
return d.hash();
}
};
-}
+} // namespace std
//////////////////////////////////////////////////////////////////////
namespace folly {
-struct TypeError : std::runtime_error {
+struct FOLLY_EXPORT TypeError : std::runtime_error {
explicit TypeError(const std::string& expected, dynamic::Type actual);
explicit TypeError(
const std::string& expected,
namespace detail {
- // This helper is used in destroy() to be able to run destructors on
- // types like "int64_t" without a compiler error.
- struct Destroy {
- template<class T> static void destroy(T* t) { t->~T(); }
- };
-
- /*
- * Helper for implementing numeric conversions in operators on
- * numbers. Just promotes to double when one of the arguments is
- * double, or throws if either is not a numeric type.
- */
- template<template<class> class Op>
- dynamic numericOp(dynamic const& a, dynamic const& b) {
- if (!a.isNumber() || !b.isNumber()) {
- throwTypeError_("numeric", a.type(), b.type());
- }
- if (a.type() != b.type()) {
- auto& integ = a.isInt() ? a : b;
- auto& nonint = a.isInt() ? b : a;
- return Op<double>()(to<double>(integ.asInt()), nonint.asDouble());
- }
- if (a.isDouble()) {
- return Op<double>()(a.asDouble(), b.asDouble());
- }
- return Op<int64_t>()(a.asInt(), b.asInt());
+// This helper is used in destroy() to be able to run destructors on
+// types like "int64_t" without a compiler error.
+struct Destroy {
+ template <class T>
+ static void destroy(T* t) {
+ t->~T();
}
+};
+/*
+ * Helper for implementing numeric conversions in operators on
+ * numbers. Just promotes to double when one of the arguments is
+ * double, or throws if either is not a numeric type.
+ */
+template <template <class> class Op>
+dynamic numericOp(dynamic const& a, dynamic const& b) {
+ if (!a.isNumber() || !b.isNumber()) {
+ throwTypeError_("numeric", a.type(), b.type());
+ }
+ if (a.type() != b.type()) {
+ auto& integ = a.isInt() ? a : b;
+ auto& nonint = a.isInt() ? b : a;
+ return Op<double>()(to<double>(integ.asInt()), nonint.asDouble());
+ }
+ if (a.isDouble()) {
+ return Op<double>()(a.asDouble(), b.asDouble());
+ }
+ return Op<int64_t>()(a.asInt(), b.asInt());
}
+} // namespace detail
+
//////////////////////////////////////////////////////////////////////
/*
return std::move(*this);
}
-private:
+ private:
dynamic val_;
};
using type = double;
};
-template<class T, class NumericType /* = typename NumericTypeHelper<T>::type */>
+template <
+ class T,
+ class NumericType /* = typename NumericTypeHelper<T>::type */>
dynamic::dynamic(T t) {
type_ = TypeInfo<NumericType>::type;
new (getAddress<NumericType>()) NumericType(NumericType(t));
return get<std::string>();
}
-template<class T>
+template <class T>
struct dynamic::CompareOp {
static bool comp(T const& a, T const& b) { return a < b; }
};
-template<>
+template <>
struct dynamic::CompareOp<dynamic::ObjectImpl> {
static bool comp(ObjectImpl const&, ObjectImpl const&) {
// This code never executes; it is just here for the compiler.
return false;
}
};
-template<>
+template <>
struct dynamic::CompareOp<std::nullptr_t> {
static bool comp(std::nullptr_t const&, std::nullptr_t const&) {
return true;
return std::move((*this)[idx]);
}
-template<class K, class V> inline dynamic& dynamic::setDefault(K&& k, V&& 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),
std::forward<V>(v))).first->second;
}
-template<class K> inline dynamic& dynamic::setDefault(K&& k, dynamic&& v) {
+template <class K> inline dynamic& dynamic::setDefault(K&& k, dynamic&& v) {
auto& obj = get<ObjectImpl>();
return obj.insert(std::make_pair(std::forward<K>(k),
std::move(v))).first->second;
}
-template<class K> inline dynamic& dynamic::setDefault(K&& k, const dynamic& v) {
+template <class K> inline dynamic& dynamic::setDefault(K&& k, const dynamic& v) {
auto& obj = get<ObjectImpl>();
return obj.insert(std::make_pair(std::forward<K>(k), v)).first->second;
}
return get<ObjectImpl>().find(key);
}
-template<class K, class V> inline void dynamic::insert(K&& key, V&& val) {
+template <class K, class V> inline void dynamic::insert(K&& key, V&& val) {
auto& obj = get<ObjectImpl>();
auto rv = obj.insert({ std::forward<K>(key), nullptr });
rv.first->second = std::forward<V>(val);
#undef FOLLY_DYNAMIC_DEC_TYPEINFO
-template<class T>
+template <class T>
T dynamic::asImpl() const {
switch (type()) {
case INT64: return to<T>(*get_nothrow<int64_t>());
}
// Return a T* to our type, or null if we're not that type.
-template<class T>
+template <class T>
T* dynamic::get_nothrow() & noexcept {
if (type_ != TypeInfo<T>::type) {
return nullptr;
return getAddress<T>();
}
-template<class T>
+template <class T>
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>
+template <class T>
T* dynamic::getAddress() noexcept {
return GetAddrImpl<T>::get(u_);
}
-template<class T>
+template <class T>
T const* dynamic::getAddress() const noexcept {
return const_cast<dynamic*>(this)->getAddress<T>();
}
-template<class T> struct dynamic::GetAddrImpl {};
-template<> struct dynamic::GetAddrImpl<std::nullptr_t> {
+template <class T> struct dynamic::GetAddrImpl {};
+template <> struct dynamic::GetAddrImpl<std::nullptr_t> {
static std::nullptr_t* get(Data& d) noexcept { return &d.nul; }
};
-template<> struct dynamic::GetAddrImpl<dynamic::Array> {
+template <> struct dynamic::GetAddrImpl<dynamic::Array> {
static Array* get(Data& d) noexcept { return &d.array; }
};
-template<> struct dynamic::GetAddrImpl<bool> {
+template <> struct dynamic::GetAddrImpl<bool> {
static bool* get(Data& d) noexcept { return &d.boolean; }
};
-template<> struct dynamic::GetAddrImpl<int64_t> {
+template <> struct dynamic::GetAddrImpl<int64_t> {
static int64_t* get(Data& d) noexcept { return &d.integer; }
};
-template<> struct dynamic::GetAddrImpl<double> {
+template <> struct dynamic::GetAddrImpl<double> {
static double* get(Data& d) noexcept { return &d.doubl; }
};
template <>
return &d.string;
}
};
-template<> struct dynamic::GetAddrImpl<dynamic::ObjectImpl> {
+template <> struct dynamic::GetAddrImpl<dynamic::ObjectImpl> {
static_assert(sizeof(ObjectImpl) <= sizeof(Data::objectBuffer),
"In your implementation, std::unordered_map<> apparently takes different"
" amount of space depending on its template parameters. This is "
}
};
-template<class T>
+template <class T>
T& dynamic::get() {
if (auto* p = get_nothrow<T>()) {
return *p;
throwTypeError_(TypeInfo<T>::name, type());
}
-template<class T>
+template <class T>
T const& dynamic::get() const {
return const_cast<dynamic*>(this)->get<T>();
}
* Helper for implementing operator<<. Throws if the type shouldn't
* support it.
*/
-template<class T>
+template <class T>
struct dynamic::PrintImpl {
static void print(dynamic const&, std::ostream& out, T const& t) {
out << t;
out << "null";
}
};
-template<>
+template <>
struct dynamic::PrintImpl<dynamic::ObjectImpl> {
static void print(dynamic const& d,
std::ostream& out,
d.print_as_pseudo_json(out);
}
};
-template<>
+template <>
struct dynamic::PrintImpl<dynamic::Array> {
static void print(dynamic const& d,
std::ostream& out,
const detail::DefaultValueWrapper<dynamic, V>& val_;
};
-} // namespaces
+} // namespace folly
#undef FB_DYNAMIC_APPLY
projects / folly.git / blobdiff