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Clean up and document project files (#4560)

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Niels Lohmann
2025-01-17 06:53:35 +01:00
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26
docs/mkdocs/docs/features/arbitrary_types.md
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@@ -85,14 +85,36 @@ Some important things:
If you just want to serialize/deserialize some structs, the `to_json`/`from_json` functions can be a lot of boilerplate.
There are four macros to make your life easier as long as you (1) want to use a JSON object as serialization and (2) want to use the member variable names as object keys in that object:
There are six macros to make your life easier as long as you (1) want to use a JSON object as serialization and (2) want to use the member variable names as object keys in that object:
- [`NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(name, member1, member2, ...)`](../api/macros/nlohmann_define_type_non_intrusive.md) is to be defined inside the namespace of the class/struct to create code for. It will throw an exception in `from_json()` due to a missing value in the JSON object.
- [`NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT(name, member1, member2, ...)`](../api/macros/nlohmann_define_type_non_intrusive.md) is to be defined inside the namespace of the class/struct to create code for. It will not throw an exception in `from_json()` due to a missing value in the JSON object, but fills in values from object which is default-constructed by the type.
- [`NLOHMANN_DEFINE_TYPE_INTRUSIVE_ONLY_SERIALIZE(name, member1, member2, ...)`](../api/macros/nlohmann_define_type_non_intrusive.md) is to be defined inside the namespace of the class/struct to create code for. It does not define a `fron_json()` function which is needed in case the type does not have a default constructor.
- [`NLOHMANN_DEFINE_TYPE_INTRUSIVE(name, member1, member2, ...)`](../api/macros/nlohmann_define_type_intrusive.md) is to be defined inside the class/struct to create code for. This macro can also access private members. It will throw an exception in `from_json()` due to a missing value in the JSON object.
- [`NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT(name, member1, member2, ...)`](../api/macros/nlohmann_define_type_intrusive.md) is to be defined inside the class/struct to create code for. This macro can also access private members. It will not throw an exception in `from_json()` due to a missing value in the JSON object, but fills in values from object which is default-constructed by the type.
- [`NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE(name, member1, member2, ...)`](../api/macros/nlohmann_define_type_intrusive.md) is to be defined inside the class/struct to create code for. This macro can also access private members. It does not define a `fron_json()` function which is needed in case the type does not have a default constructor.
In all macros, the first parameter is the name of the class/struct, and all remaining parameters name the members. You can read more docs about them starting from [here](macros.md#nlohmann_define_type_intrusivetype-member).
Furthermore, there exist versions to use in case of derived classes:
| Need access to private members | Need only de-serialization | Allow missing values when de-serializing | macro |
|------------------------------------------------------------------|------------------------------------------------------------------|------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------|
| <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div> | [**NLOHMANN_DEFINE_TYPE_INTRUSIVE**](../api/macros/nlohmann_define_type_intrusive.md) |
| <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: green;">:octicons-check-circle-fill-24:</div> | [**NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT**](../api/macros/nlohmann_define_type_intrusive.md) |
| <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: grey;">:octicons-skip-fill-24:</div> | [**NLOHMANN_DEFINE_TYPE_INTRUSIVE_ONLY_SERIALIZE**](../api/macros/nlohmann_define_type_intrusive.md) |
| <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div> | [**NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE**](../api/macros/nlohmann_define_type_non_intrusive.md) |
| <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: green;">:octicons-check-circle-fill-24:</div> | [**NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT**](../api/macros/nlohmann_define_type_non_intrusive.md) |
| <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: grey;">:octicons-skip-fill-24:</div> | [**NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE**](../api/macros/nlohmann_define_type_non_intrusive.md) |
For _derived_ classes and structs, use the following macros
| Need access to private members | Need only de-serialization | Allow missing values when de-serializing | macro |
|------------------------------------------------------------------|------------------------------------------------------------------|------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------|
| <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div> | [**NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE**](../api/macros/nlohmann_define_derived_type.md) |
| <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: green;">:octicons-check-circle-fill-24:</div> | [**NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_WITH_DEFAULT**](../api/macros/nlohmann_define_derived_type.md) |
| <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: grey;">:octicons-skip-fill-24:</div> | [**NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_ONLY_SERIALIZE**](../api/macros/nlohmann_define_derived_type.md) |
| <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div> | [**NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE**](../api/macros/nlohmann_define_derived_type.md) |
| <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: green;">:octicons-check-circle-fill-24:</div> | [**NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_WITH_DEFAULT**](../api/macros/nlohmann_define_derived_type.md) |
| <div style="color: red;">:octicons-x-circle-fill-24:</div> | <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: grey;">:octicons-skip-fill-24:</div> | [**NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE**](../api/macros/nlohmann_define_derived_type.md) |
!!! info "Implementation limits"

16
docs/mkdocs/docs/features/binary_formats/bson.md
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@@ -32,11 +32,8 @@ The library uses the following mapping from JSON values types to BSON types:
!!! warning "Incomplete mapping"
The mapping is **incomplete**, since only JSON-objects (and things
contained therein) can be serialized to BSON.
Also, integers larger than 9223372036854775807 cannot be serialized to BSON,
and the keys may not contain U+0000, since they are serialized a
zero-terminated c-strings.
The mapping is **incomplete**, since only JSON-objects (and things contained therein) can be serialized to BSON.
Also, keys may not contain U+0000, since they are serialized a zero-terminated c-strings.
??? example
@@ -82,6 +79,10 @@ The library maps BSON record types to JSON value types as follows:
The mapping is **incomplete**. The unsupported mappings are indicated in the table above.
!!! note "Handling of BSON type 0x11"
BSON type 0x11 is used to represent uint64 numbers. This library treats these values purely as uint64 numbers
and does not parse them into date-related formats.
??? example
@@ -94,8 +95,3 @@ The library maps BSON record types to JSON value types as follows:
```json
--8<-- "examples/from_bson.output"
```
!!! note "Handling of BSON type 0x11"
BSON type 0x11 is used to represent uint64 numbers. This library treats these values purely as uint64 numbers
and does not parse them into date-related formats.

60
docs/mkdocs/docs/features/macros.md
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@@ -100,64 +100,10 @@ When defined to `0`, implicit conversions are switched off. By default, implicit
See [full documentation of `JSON_USE_IMPLICIT_CONVERSIONS`](../api/macros/json_use_implicit_conversions.md).
## `NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE(type, base_type, member...)`
## `NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_WITH_DEFAULT(type, base_type, member...)`
## `NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_ONLY_SERIALIZE(type, base_type, member...)`
## `NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE(type, base_type, member...)`
## `NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_WITH_DEFAULT(type, base_type, member...)`
## `NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE(type, base_type, member...)`
## `NLOHMANN_DEFINE_TYPE_*(...)`, `NLOHMANN_DEFINE_DERIVED_TYPE_*(...)`
## `NLOHMANN_DEFINE_TYPE_INTRUSIVE(type, member...)`
This macro can be used to simplify the serialization/deserialization of types if (1) want to use a JSON object as
serialization and (2) want to use the member variable names as object keys in that object.
The macro is to be defined inside the class/struct to create code for. Unlike
[`NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE`](#nlohmann_define_type_non_intrusivetype-member), it can access private members.
The first parameter is the name of the class/struct, and all remaining parameters name the members.
See [full documentation of `NLOHMANN_DEFINE_TYPE_INTRUSIVE`](../api/macros/nlohmann_define_type_intrusive.md).
## `NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT(type, member...)`
This macro is similar to `NLOHMANN_DEFINE_TYPE_INTRUSIVE`. It will not throw an exception in `from_json()` due to a
missing value in the JSON object, but can throw due to a mismatched type. The `from_json()` function default constructs
an object and uses its values as the defaults when calling the [`value`](../api/basic_json/value.md) function.
See [full documentation of `NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT`](../api/macros/nlohmann_define_type_intrusive.md).
## `NLOHMANN_DEFINE_TYPE_INTRUSIVE_ONLY_SERIALIZE(type, member...)`
This macro is similar to `NLOHMANN_DEFINE_TYPE_INTRUSIVE` except that it defines only the serialization code. This is
useful when the user type does not have a default constructor and only the serialization is required.
See [full documentation of `NLOHMANN_DEFINE_TYPE_INTRUSIVE_ONLY_SERIALIZE`](../api/macros//nlohmann_define_type_intrusive.md).
## `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(type, member...)`
This macro can be used to simplify the serialization/deserialization of types if (1) want to use a JSON object as
serialization and (2) want to use the member variable names as object keys in that object.
The macro is to be defined inside the namespace of the class/struct to create code for. Private members cannot be
accessed. Use [`NLOHMANN_DEFINE_TYPE_INTRUSIVE`](#nlohmann_define_type_intrusivetype-member) in these scenarios. The
first parameter is the name of the class/struct, and all remaining parameters name the members.
See [full documentation of `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE`](../api/macros/nlohmann_define_type_non_intrusive.md).
## `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT(type, member...)`
This macro is similar to `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE`. It will not throw an exception in `from_json()` due to a
missing value in the JSON object, but can throw due to a mismatched type. The `from_json()` function default constructs
an object and uses its values as the defaults when calling the [`value`](../api/basic_json/value.md) function.
See [full documentation of `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT`](../api/macros/nlohmann_define_type_non_intrusive.md).
## `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE(type, member...)`
This macro is similar to `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE` except that it defines only the serialization code. This is
useful when the user type does not have a default constructor and only the serialization is required.
See [full documentation of `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE`](../api/macros//nlohmann_define_type_non_intrusive.md).
The library defines 12 macros to simplify the serialization/deserialization of types. See the page on
[arbitrary type conversion](arbitrary_types.md#simplify-your-life-with-macros) for a detailed discussion.
## `NLOHMANN_JSON_SERIALIZE_ENUM(type, ...)`