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Add NLOHMANN_DEFINE_DERIVED_TYPE_* macros (#4033)
* Add NLOHMANN_DEFINE_DERIVED_TYPE_* macros * Fix with amalgamate * Add documentation * Fix with amalgamate * Fix with amalgamate --------- Co-authored-by: Niccolò Iardella <niccolo.iardella@doriansrl.it>
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Niccolò Iardella
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118
docs/mkdocs/docs/api/macros/nlohmann_define_derived_type.md
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118
docs/mkdocs/docs/api/macros/nlohmann_define_derived_type.md
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@ -0,0 +1,118 @@
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# NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE, NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_WITH_DEFAULT
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# NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE, NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_WITH_DEFAULT
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```cpp
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#define NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE(type, base_type, member...) // (1)
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#define NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_WITH_DEFAULT(type, base_type, member...) // (2)
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#define NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE(type, base_type, member...) // (3)
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#define NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_WITH_DEFAULT(type, base_type, member...) // (4)
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```
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These macros can be used to simplify the serialization/deserialization of derived types if you want to use a JSON
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object as serialization and want to use the member variable names as object keys in that object.
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- Macros 1 and 2 are to be defined **inside** the class/struct to create code for.
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Like [`NLOHMANN_DEFINE_TYPE_INTRUSIVE`](nlohmann_define_type_intrusive.md), they can access private members.
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- Macros 3 and 4 are to be defined **outside** the class/struct to create code for, but **inside** its namespace.
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Like [`NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE`](nlohmann_define_type_non_intrusive.md),
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they **cannot** access private members.
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The first parameter is the name of the derived class/struct,
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the second parameter is the name of the base class/struct and all remaining parameters name the members.
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The base type **must** be already serializable/deserializable.
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- Macros 1 and 3 will use [`at`](../basic_json/at.md) during deserialization and will throw
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[`out_of_range.403`](../../home/exceptions.md#jsonexceptionout_of_range403) if a key is missing in the JSON object.
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- Macros 2 and 4 will use [`value`](../basic_json/value.md) during deserialization and fall back to the default value for the
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respective type of the member variable if a key in the JSON object is missing. The generated `from_json()` function
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default constructs an object and uses its values as the defaults when calling the `value` function.
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## Parameters
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`type` (in)
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: name of the type (class, struct) to serialize/deserialize
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`base_type` (in)
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: name of the base type (class, struct) `type` is derived from
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`member` (in)
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: name of the member variable to serialize/deserialize; up to 64 members can be given as comma-separated list
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## Default definition
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Macros 1 and 2 add two friend functions to the class which take care of the serialization and deserialization:
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```cpp
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friend void to_json(nlohmann::json&, const type&);
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friend void from_json(const nlohmann::json&, type&);
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```
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Macros 3 and 4 add two functions to the namespace which take care of the serialization and deserialization:
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```cpp
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void to_json(nlohmann::json&, const type&);
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void from_json(const nlohmann::json&, type&);
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```
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In both cases they call the `to_json`/`from_json` functions of the base type
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before serializing/deserializing the members of the derived type:
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```cpp
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class A { /* ... */ };
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class B : public A { /* ... */ };
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void to_json(nlohmann::json& j, const B& b) {
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nlohmann::to_json(j, static_cast<const A&>(b));
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// ...
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}
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void from_json(const nlohmann::json& j, B& b) {
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nlohmann::from_json(j, static_cast<A&>(b));
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// ...
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}
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```
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## Notes
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!!! info "Prerequisites"
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- Macros 1 and 2 have the same prerequisites of NLOHMANN_DEFINE_TYPE_INTRUSIVE.
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- Macros 3 and 3 have the same prerequisites of NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE.
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- Serialization/deserialization of base types must be defined.
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!!! warning "Implementation limits"
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- See Implementation limits for NLOHMANN_DEFINE_TYPE_INTRUSIVE and NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE.
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## Examples
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Example of `NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE` usage:
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```cpp
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class A {
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double Aa;
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double Ab;
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NLOHMANN_DEFINE_TYPE_INTRUSIVE(A, Aa, Ab)
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};
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class B : public A {
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int Ba;
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int Bb;
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NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE(B, A, Ba, Bb)
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};
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```
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## See also
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- [NLOHMANN_DEFINE_TYPE_INTRUSIVE / NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT](nlohmann_define_type_intrusive.md)
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for similar macros that can be defined _inside_ a non-derived type.
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- [NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE / NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT](nlohmann_define_type_non_intrusive.md)
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for a similar macros that can be defined _outside_ a non-derived type.
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- [Arbitrary Type Conversions](../../features/arbitrary_types.md) for an overview.
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## Version history
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1. Added in version 3.11.x.
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@ -425,6 +425,32 @@
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inline void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
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inline void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { const Type nlohmann_json_default_obj{}; NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM_WITH_DEFAULT, __VA_ARGS__)) }
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/*!
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@brief macro
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@def NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE
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@since version 3.11.x
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*/
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#define NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE(Type, BaseType, ...) \
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friend void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { nlohmann::to_json(nlohmann_json_j, static_cast<const BaseType &>(nlohmann_json_t)); NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
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friend void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { nlohmann::from_json(nlohmann_json_j, static_cast<BaseType&>(nlohmann_json_t)); NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) }
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#define NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_WITH_DEFAULT(Type, BaseType, ...) \
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friend void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { nlohmann::to_json(nlohmann_json_j, static_cast<const BaseType&>(nlohmann_json_t)); NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
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friend void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { nlohmann::from_json(nlohmann_json_j, static_cast<BaseType&>(nlohmann_json_t)); const Type nlohmann_json_default_obj{}; NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM_WITH_DEFAULT, __VA_ARGS__)) }
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/*!
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@brief macro
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@def NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE
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@since version 3.11.x
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*/
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#define NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE(Type, BaseType, ...) \
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inline void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { nlohmann::to_json(nlohmann_json_j, static_cast<const BaseType &>(nlohmann_json_t)); NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
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inline void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { nlohmann::from_json(nlohmann_json_j, static_cast<BaseType&>(nlohmann_json_t)); NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) }
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#define NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_WITH_DEFAULT(Type, BaseType, ...) \
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inline void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { nlohmann::to_json(nlohmann_json_j, static_cast<const BaseType &>(nlohmann_json_t)); NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
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inline void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { nlohmann::from_json(nlohmann_json_j, static_cast<BaseType&>(nlohmann_json_t)); const Type nlohmann_json_default_obj{}; NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM_WITH_DEFAULT, __VA_ARGS__)) }
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// inspired from https://stackoverflow.com/a/26745591
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// allows to call any std function as if (e.g. with begin):
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// using std::begin; begin(x);
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@ -41,7 +41,6 @@
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// SPDX-License-Identifier: MIT
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#include <utility>
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// #include <nlohmann/detail/abi_macros.hpp>
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@ -54,7 +53,6 @@
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// SPDX-License-Identifier: MIT
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// This file contains all macro definitions affecting or depending on the ABI
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#ifndef JSON_SKIP_LIBRARY_VERSION_CHECK
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@ -156,7 +154,6 @@
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// SPDX-License-Identifier: MIT
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#include <algorithm> // transform
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#include <array> // array
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#include <forward_list> // forward_list
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@ -179,7 +176,6 @@
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// SPDX-License-Identifier: MIT
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#include <cstddef> // nullptr_t
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#include <exception> // exception
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#if JSON_DIAGNOSTICS
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@ -199,7 +195,6 @@
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// SPDX-License-Identifier: MIT
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#include <array> // array
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#include <cstddef> // size_t
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#include <cstdint> // uint8_t
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@ -215,7 +210,6 @@
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// SPDX-License-Identifier: MIT
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#include <utility> // declval, pair
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// #include <nlohmann/detail/meta/detected.hpp>
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// __ _____ _____ _____
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@ -227,7 +221,6 @@
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// SPDX-License-Identifier: MIT
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#include <type_traits>
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// #include <nlohmann/detail/meta/void_t.hpp>
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@ -240,7 +233,6 @@
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// SPDX-License-Identifier: MIT
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// #include <nlohmann/detail/abi_macros.hpp>
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@ -2777,6 +2769,33 @@ JSON_HEDLEY_DIAGNOSTIC_POP
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inline void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
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inline void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { const Type nlohmann_json_default_obj{}; NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM_WITH_DEFAULT, __VA_ARGS__)) }
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/*!
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@brief macro
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@def NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE
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@since version 3.11.x
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*/
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#define NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE(Type, BaseType, ...) \
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friend void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { nlohmann::to_json(nlohmann_json_j, static_cast<const BaseType &>(nlohmann_json_t)); NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
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friend void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { nlohmann::from_json(nlohmann_json_j, static_cast<BaseType&>(nlohmann_json_t)); NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) }
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#define NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_WITH_DEFAULT(Type, BaseType, ...) \
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friend void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { nlohmann::to_json(nlohmann_json_j, static_cast<const BaseType&>(nlohmann_json_t)); NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
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friend void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { nlohmann::from_json(nlohmann_json_j, static_cast<BaseType&>(nlohmann_json_t)); const Type nlohmann_json_default_obj{}; NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM_WITH_DEFAULT, __VA_ARGS__)) }
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/*!
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@brief macro
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@def NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE
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@since version 3.11.x
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*/
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#define NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE(Type, BaseType, ...) \
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inline void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { nlohmann::to_json(nlohmann_json_j, static_cast<const BaseType &>(nlohmann_json_t)); NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
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inline void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { nlohmann::from_json(nlohmann_json_j, static_cast<BaseType&>(nlohmann_json_t)); NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) }
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#define NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_WITH_DEFAULT(Type, BaseType, ...) \
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inline void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { nlohmann::to_json(nlohmann_json_j, static_cast<const BaseType &>(nlohmann_json_t)); NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
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inline void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { nlohmann::from_json(nlohmann_json_j, static_cast<BaseType&>(nlohmann_json_t)); const Type nlohmann_json_default_obj{}; NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM_WITH_DEFAULT, __VA_ARGS__)) }
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// inspired from https://stackoverflow.com/a/26745591
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// allows to call any std function as if (e.g. with begin):
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// using std::begin; begin(x);
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@ -2946,7 +2965,6 @@ NLOHMANN_JSON_NAMESPACE_END
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// SPDX-License-Identifier: MIT
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// #include <nlohmann/detail/abi_macros.hpp>
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@ -3021,7 +3039,6 @@ NLOHMANN_JSON_NAMESPACE_END
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// SPDX-License-Identifier: MIT
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#include <cstddef> // size_t
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// #include <nlohmann/detail/abi_macros.hpp>
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@ -3064,7 +3081,6 @@ NLOHMANN_JSON_NAMESPACE_END
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// SPDX-License-Identifier: MIT
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#include <array> // array
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#include <cstddef> // size_t
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#include <type_traits> // conditional, enable_if, false_type, integral_constant, is_constructible, is_integral, is_same, remove_cv, remove_reference, true_type
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@ -3237,7 +3253,6 @@ NLOHMANN_JSON_NAMESPACE_END
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// SPDX-License-Identifier: MIT
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#include <limits> // numeric_limits
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#include <type_traits> // false_type, is_constructible, is_integral, is_same, true_type
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#include <utility> // declval
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@ -3254,7 +3269,6 @@ NLOHMANN_JSON_NAMESPACE_END
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// SPDX-License-Identifier: MIT
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#include <iterator> // random_access_iterator_tag
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// #include <nlohmann/detail/abi_macros.hpp>
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@ -3322,7 +3336,6 @@ NLOHMANN_JSON_NAMESPACE_END
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// SPDX-License-Identifier: MIT
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// #include <nlohmann/detail/macro_scope.hpp>
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@ -3342,7 +3355,6 @@ NLOHMANN_JSON_NAMESPACE_END
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// SPDX-License-Identifier: MIT
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// #include <nlohmann/detail/macro_scope.hpp>
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@ -4217,7 +4229,6 @@ NLOHMANN_JSON_NAMESPACE_END
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// SPDX-License-Identifier: MIT
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#include <cstring> // strlen
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#include <string> // string
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#include <utility> // forward
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@ -4603,7 +4614,6 @@ NLOHMANN_JSON_NAMESPACE_END
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// SPDX-License-Identifier: MIT
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// #include <nlohmann/detail/abi_macros.hpp>
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@ -4627,7 +4637,6 @@ NLOHMANN_JSON_NAMESPACE_END
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// SPDX-License-Identifier: MIT
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// #include <nlohmann/detail/macro_scope.hpp>
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@ -5133,7 +5142,6 @@ NLOHMANN_JSON_NAMESPACE_END
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// SPDX-License-Identifier: MIT
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#include <algorithm> // copy
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#include <iterator> // begin, end
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#include <string> // string
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@ -5153,7 +5161,6 @@ NLOHMANN_JSON_NAMESPACE_END
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// SPDX-License-Identifier: MIT
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#include <cstddef> // size_t
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#include <iterator> // input_iterator_tag
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#include <string> // string, to_string
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@ -5875,7 +5882,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <cstdint> // uint8_t, uint64_t
|
||||
#include <tuple> // tie
|
||||
#include <utility> // move
|
||||
@ -5987,7 +5993,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <cstdint> // uint8_t
|
||||
#include <cstddef> // size_t
|
||||
#include <functional> // hash
|
||||
@ -6120,7 +6125,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <algorithm> // generate_n
|
||||
#include <array> // array
|
||||
#include <cmath> // ldexp
|
||||
@ -6146,7 +6150,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <array> // array
|
||||
#include <cstddef> // size_t
|
||||
#include <cstring> // strlen
|
||||
@ -6643,7 +6646,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <cstddef>
|
||||
#include <string> // string
|
||||
#include <utility> // move
|
||||
@ -7375,7 +7377,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <array> // array
|
||||
#include <clocale> // localeconv
|
||||
#include <cstddef> // size_t
|
||||
@ -9016,7 +9017,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <cstdint> // size_t
|
||||
#include <utility> // declval
|
||||
#include <string> // string
|
||||
@ -12168,7 +12168,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <cmath> // isfinite
|
||||
#include <cstdint> // uint8_t
|
||||
#include <functional> // function
|
||||
@ -12697,7 +12696,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
// #include <nlohmann/detail/abi_macros.hpp>
|
||||
|
||||
// #include <nlohmann/detail/iterators/primitive_iterator.hpp>
|
||||
@ -12710,7 +12708,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <cstddef> // ptrdiff_t
|
||||
#include <limits> // numeric_limits
|
||||
|
||||
@ -12869,7 +12866,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <iterator> // iterator, random_access_iterator_tag, bidirectional_iterator_tag, advance, next
|
||||
#include <type_traits> // conditional, is_const, remove_const
|
||||
|
||||
@ -13631,7 +13627,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <cstddef> // ptrdiff_t
|
||||
#include <iterator> // reverse_iterator
|
||||
#include <utility> // declval
|
||||
@ -13808,7 +13803,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <algorithm> // all_of
|
||||
#include <cctype> // isdigit
|
||||
#include <cerrno> // errno, ERANGE
|
||||
@ -14803,7 +14797,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <initializer_list>
|
||||
#include <utility>
|
||||
|
||||
@ -14895,7 +14888,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <algorithm> // reverse
|
||||
#include <array> // array
|
||||
#include <map> // map
|
||||
@ -14921,7 +14913,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <algorithm> // copy
|
||||
#include <cstddef> // size_t
|
||||
#include <iterator> // back_inserter
|
||||
@ -16890,7 +16881,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <algorithm> // reverse, remove, fill, find, none_of
|
||||
#include <array> // array
|
||||
#include <clocale> // localeconv, lconv
|
||||
@ -16915,7 +16905,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <array> // array
|
||||
#include <cmath> // signbit, isfinite
|
||||
#include <cstdint> // intN_t, uintN_t
|
||||
@ -19010,7 +18999,6 @@ NLOHMANN_JSON_NAMESPACE_END
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#include <functional> // equal_to, less
|
||||
#include <initializer_list> // initializer_list
|
||||
#include <iterator> // input_iterator_tag, iterator_traits
|
||||
@ -24566,7 +24554,6 @@ inline void swap(nlohmann::NLOHMANN_BASIC_JSON_TPL& j1, nlohmann::NLOHMANN_BASIC
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
// restore clang diagnostic settings
|
||||
#if defined(__clang__)
|
||||
#pragma clang diagnostic pop
|
||||
@ -24611,7 +24598,6 @@ inline void swap(nlohmann::NLOHMANN_BASIC_JSON_TPL& j1, nlohmann::NLOHMANN_BASIC
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
#undef JSON_HEDLEY_ALWAYS_INLINE
|
||||
#undef JSON_HEDLEY_ARM_VERSION
|
||||
#undef JSON_HEDLEY_ARM_VERSION_CHECK
|
||||
@ -24762,5 +24748,4 @@ inline void swap(nlohmann::NLOHMANN_BASIC_JSON_TPL& j1, nlohmann::NLOHMANN_BASIC
|
||||
#undef JSON_HEDLEY_FALL_THROUGH
|
||||
|
||||
|
||||
|
||||
#endif // INCLUDE_NLOHMANN_JSON_HPP_
|
||||
|
||||
@ -25,7 +25,6 @@
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
|
||||
// This file contains all macro definitions affecting or depending on the ABI
|
||||
|
||||
#ifndef JSON_SKIP_LIBRARY_VERSION_CHECK
|
||||
|
||||
@ -38,6 +38,26 @@ class person_with_private_data
|
||||
NLOHMANN_DEFINE_TYPE_INTRUSIVE(person_with_private_data, age, name, metadata)
|
||||
};
|
||||
|
||||
class derived_person_with_private_data : public person_with_private_data
|
||||
{
|
||||
private:
|
||||
std::string hair_color{"blue"};
|
||||
|
||||
public:
|
||||
bool operator==(const derived_person_with_private_data& rhs) const
|
||||
{
|
||||
return person_with_private_data::operator==(rhs) && hair_color == rhs.hair_color;
|
||||
}
|
||||
|
||||
derived_person_with_private_data() = default;
|
||||
derived_person_with_private_data(std::string name_, int age_, json metadata_, std::string hair_color_)
|
||||
: person_with_private_data(std::move(name_), age_, std::move(metadata_))
|
||||
, hair_color(std::move(hair_color_))
|
||||
{}
|
||||
|
||||
NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE(derived_person_with_private_data, person_with_private_data, hair_color)
|
||||
};
|
||||
|
||||
class person_with_private_data_2
|
||||
{
|
||||
private:
|
||||
@ -74,6 +94,31 @@ class person_with_private_data_2
|
||||
NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT(person_with_private_data_2, age, name, metadata)
|
||||
};
|
||||
|
||||
class derived_person_with_private_data_2 : public person_with_private_data_2
|
||||
{
|
||||
private:
|
||||
std::string hair_color{"blue"};
|
||||
|
||||
public:
|
||||
bool operator==(const derived_person_with_private_data_2& rhs) const
|
||||
{
|
||||
return person_with_private_data_2::operator==(rhs) && hair_color == rhs.hair_color;
|
||||
}
|
||||
|
||||
derived_person_with_private_data_2() = default;
|
||||
derived_person_with_private_data_2(std::string name_, int age_, json metadata_, std::string hair_color_)
|
||||
: person_with_private_data_2(std::move(name_), age_, std::move(metadata_))
|
||||
, hair_color(std::move(hair_color_))
|
||||
{}
|
||||
|
||||
std::string getHairColor() const
|
||||
{
|
||||
return hair_color;
|
||||
}
|
||||
|
||||
NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_WITH_DEFAULT(derived_person_with_private_data_2, person_with_private_data_2, hair_color)
|
||||
};
|
||||
|
||||
class person_without_private_data_1
|
||||
{
|
||||
public:
|
||||
@ -96,6 +141,26 @@ class person_without_private_data_1
|
||||
NLOHMANN_DEFINE_TYPE_INTRUSIVE(person_without_private_data_1, age, name, metadata)
|
||||
};
|
||||
|
||||
class derived_person_without_private_data_1 : public person_without_private_data_1
|
||||
{
|
||||
public:
|
||||
std::string hair_color{"blue"};
|
||||
|
||||
public:
|
||||
bool operator==(const derived_person_without_private_data_1& rhs) const
|
||||
{
|
||||
return person_without_private_data_1::operator==(rhs) && hair_color == rhs.hair_color;
|
||||
}
|
||||
|
||||
derived_person_without_private_data_1() = default;
|
||||
derived_person_without_private_data_1(std::string name_, int age_, json metadata_, std::string hair_color_)
|
||||
: person_without_private_data_1(std::move(name_), age_, std::move(metadata_))
|
||||
, hair_color(std::move(hair_color_))
|
||||
{}
|
||||
|
||||
NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE(derived_person_without_private_data_1, person_without_private_data_1, hair_color)
|
||||
};
|
||||
|
||||
class person_without_private_data_2
|
||||
{
|
||||
public:
|
||||
@ -118,6 +183,26 @@ class person_without_private_data_2
|
||||
|
||||
NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(person_without_private_data_2, age, name, metadata)
|
||||
|
||||
class derived_person_without_private_data_2 : public person_without_private_data_2
|
||||
{
|
||||
public:
|
||||
std::string hair_color{"blue"};
|
||||
|
||||
public:
|
||||
bool operator==(const derived_person_without_private_data_2& rhs) const
|
||||
{
|
||||
return person_without_private_data_2::operator==(rhs) && hair_color == rhs.hair_color;
|
||||
}
|
||||
|
||||
derived_person_without_private_data_2() = default;
|
||||
derived_person_without_private_data_2(std::string name_, int age_, json metadata_, std::string hair_color_)
|
||||
: person_without_private_data_2(std::move(name_), age_, std::move(metadata_))
|
||||
, hair_color(std::move(hair_color_))
|
||||
{}
|
||||
};
|
||||
|
||||
NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE(derived_person_without_private_data_2, person_without_private_data_2, hair_color)
|
||||
|
||||
class person_without_private_data_3
|
||||
{
|
||||
public:
|
||||
@ -153,6 +238,31 @@ class person_without_private_data_3
|
||||
|
||||
NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT(person_without_private_data_3, age, name, metadata)
|
||||
|
||||
class derived_person_without_private_data_3 : public person_without_private_data_3
|
||||
{
|
||||
public:
|
||||
std::string hair_color{"blue"};
|
||||
|
||||
public:
|
||||
bool operator==(const derived_person_without_private_data_3& rhs) const
|
||||
{
|
||||
return person_without_private_data_3::operator==(rhs) && hair_color == rhs.hair_color;
|
||||
}
|
||||
|
||||
derived_person_without_private_data_3() = default;
|
||||
derived_person_without_private_data_3(std::string name_, int age_, json metadata_, std::string hair_color_)
|
||||
: person_without_private_data_3(std::move(name_), age_, std::move(metadata_))
|
||||
, hair_color(std::move(hair_color_))
|
||||
{}
|
||||
|
||||
std::string getHairColor() const
|
||||
{
|
||||
return hair_color;
|
||||
}
|
||||
};
|
||||
|
||||
NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_WITH_DEFAULT(derived_person_without_private_data_3, person_without_private_data_3, hair_color)
|
||||
|
||||
class person_with_private_alphabet
|
||||
{
|
||||
public:
|
||||
@ -216,6 +326,19 @@ class person_with_private_alphabet
|
||||
NLOHMANN_DEFINE_TYPE_INTRUSIVE(person_with_private_alphabet, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z)
|
||||
};
|
||||
|
||||
class derived_person_with_private_alphabet : public person_with_private_alphabet
|
||||
{
|
||||
public:
|
||||
bool operator==(const derived_person_with_private_alphabet& other) const
|
||||
{
|
||||
return person_with_private_alphabet::operator==(other) && schwa == other.schwa;
|
||||
}
|
||||
|
||||
private:
|
||||
int schwa = 0;
|
||||
NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE(derived_person_with_private_alphabet, person_with_private_alphabet, schwa)
|
||||
};
|
||||
|
||||
class person_with_public_alphabet
|
||||
{
|
||||
public:
|
||||
@ -345,6 +468,32 @@ TEST_CASE_TEMPLATE("Serialization/deserialization via NLOHMANN_DEFINE_TYPE_INTRU
|
||||
}
|
||||
}
|
||||
|
||||
TEST_CASE_TEMPLATE("Serialization/deserialization via NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE and NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE", T,
|
||||
persons::derived_person_with_private_data,
|
||||
persons::derived_person_without_private_data_1,
|
||||
persons::derived_person_without_private_data_2)
|
||||
{
|
||||
SECTION("person")
|
||||
{
|
||||
// serialization
|
||||
T p1("Erik", 1, {{"haircuts", 2}}, "red");
|
||||
CHECK(json(p1).dump() == "{\"age\":1,\"hair_color\":\"red\",\"metadata\":{\"haircuts\":2},\"name\":\"Erik\"}");
|
||||
|
||||
// deserialization
|
||||
auto p2 = json(p1).get<T>();
|
||||
CHECK(p2 == p1);
|
||||
|
||||
// roundtrip
|
||||
CHECK(T(json(p1)) == p1);
|
||||
CHECK(json(T(json(p1))) == json(p1));
|
||||
|
||||
// check exception in case of missing field
|
||||
json j = json(p1);
|
||||
j.erase("age");
|
||||
CHECK_THROWS_WITH_AS(j.get<T>(), "[json.exception.out_of_range.403] key 'age' not found", json::out_of_range);
|
||||
}
|
||||
}
|
||||
|
||||
TEST_CASE_TEMPLATE("Serialization/deserialization via NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT and NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT", T,
|
||||
persons::person_with_private_data_2,
|
||||
persons::person_without_private_data_3)
|
||||
@ -379,6 +528,42 @@ TEST_CASE_TEMPLATE("Serialization/deserialization via NLOHMANN_DEFINE_TYPE_INTRU
|
||||
}
|
||||
}
|
||||
|
||||
TEST_CASE_TEMPLATE("Serialization/deserialization via NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_WITH_DEFAULT and NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_WITH_DEFAULT", T,
|
||||
persons::derived_person_with_private_data_2,
|
||||
persons::derived_person_without_private_data_3)
|
||||
{
|
||||
SECTION("derived person with default values")
|
||||
{
|
||||
// serialization of default constructed object
|
||||
T p0;
|
||||
CHECK(json(p0).dump() == "{\"age\":0,\"hair_color\":\"blue\",\"metadata\":null,\"name\":\"\"}");
|
||||
|
||||
// serialization
|
||||
T p1("Erik", 1, {{"haircuts", 2}}, "red");
|
||||
CHECK(json(p1).dump() == "{\"age\":1,\"hair_color\":\"red\",\"metadata\":{\"haircuts\":2},\"name\":\"Erik\"}");
|
||||
|
||||
// deserialization
|
||||
auto p2 = json(p1).get<T>();
|
||||
CHECK(p2 == p1);
|
||||
|
||||
// roundtrip
|
||||
CHECK(T(json(p1)) == p1);
|
||||
CHECK(json(T(json(p1))) == json(p1));
|
||||
|
||||
// check default value in case of missing field
|
||||
json j = json(p1);
|
||||
j.erase("name");
|
||||
j.erase("age");
|
||||
j.erase("metadata");
|
||||
j.erase("hair_color");
|
||||
T p3 = j.get<T>();
|
||||
CHECK(p3.getName() == "");
|
||||
CHECK(p3.getAge() == 0);
|
||||
CHECK(p3.getMetadata() == nullptr);
|
||||
CHECK(p3.getHairColor() == "blue");
|
||||
}
|
||||
}
|
||||
|
||||
TEST_CASE_TEMPLATE("Serialization/deserialization of classes with 26 public/private member variables via NLOHMANN_DEFINE_TYPE_INTRUSIVE and NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE", T,
|
||||
persons::person_with_private_alphabet,
|
||||
persons::person_with_public_alphabet)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user