Rust serde

Serde provides a derive macro to generate implementations of the Serialize and Deserialize rust serde for data structures defined in your crate, allowing them to be represented conveniently in all of Serde's data formats. You only need to set this up if your code is using [derive Serialize, rust serde, Deserialize ].

A data structure that can be serialized into any data format supported by Serde. Serde provides Serialize implementations for many Rust primitive and standard library types. The complete list is here. All of these can be serialized using Serde out of the box. See the derive section of the manual for how to use this. In rare cases it may be necessary to implement Serialize manually for some type in your program.

Rust serde

Serde is a framework for ser ializing and de serializing Rust data structures efficiently and generically. The Serde ecosystem consists of data structures that know how to serialize and deserialize themselves along with data formats that know how to serialize and deserialize other things. Serde provides the layer by which these two groups interact with each other, allowing any supported data structure to be serialized and deserialized using any supported data format. Where many other languages rely on runtime reflection for serializing data, Serde is instead built on Rust's powerful trait system. A data structure that knows how to serialize and deserialize itself is one that implements Serde's Serialize and Deserialize traits or uses Serde's derive attribute to automatically generate implementations at compile time. This avoids any overhead of reflection or runtime type information. In fact in many situations the interaction between data structure and data format can be completely optimized away by the Rust compiler, leaving Serde serialization to perform the same speed as a handwritten serializer for the specific selection of data structure and data format. The following is a partial list of data formats that have been implemented for Serde by the community. Out of the box, Serde is able to serialize and deserialize common Rust data types in any of the above formats. In addition, Serde provides a derive macro to generate serialization implementations for structs in your own program. Using the derive macro goes like this:. Overview Help Serde data model Using derive Attributes Container attributes Variant attributes Field attributes Custom serialization Implementing Serialize Implementing Deserialize Unit testing Writing a data format Conventions Error handling Implementing a Serializer Implementing a Deserializer Deserializer lifetimes Examples Structs and enums in JSON Enum representations Default value for a field Struct flattening Handwritten generic type bounds Deserialize for custom map type Array of values without buffering Serialize enum as number Serialize fields as camelCase Skip serializing field Derive for remote crate Manually deserialize struct Discarding data Transcode into another format Either string or struct Convert error types Custom date format No-std support Feature flags.

This trait is not object safe. This is useful for serializing rust serde as camelCase or serializing fields with names that are reserved Rust keywords. Using the derive macro goes like this:.

Serde is a framework for ser ializing and de serializing Rust data structures efficiently and generically. Serde is one of the most widely used Rust libraries so any place that Rustaceans congregate will be able to help you out. It's acceptable to file a support issue in this repo but they tend not to get as many eyes as any of the above and may get closed without a response after some time. Skip to content. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window.

The Serde data model is the API by which data structures and data formats interact. You can think of it as Serde's type system. In code, the serialization half of the Serde data model is defined by the Serializer trait and the deserialization half is defined by the Deserializer trait. These are a way of mapping every Rust data structure into one of 29 possible types. Each method of the Serializer trait corresponds to one of the types of the data model.

Rust serde

Serialize and deserialize this field with the given name instead of its Rust name. This is useful for serializing fields as camelCase or serializing fields with names that are reserved Rust keywords. Deserialize this field from the given name or from its Rust name. May be repeated to specify multiple possible names for the same field. If the value is not present when deserializing, call a function to get a default value. This removes one level of structure between the serialized representation and the Rust data structure representation.

What does gooner mean

Starlark , the format used for describing build targets by the Bazel and Buck build systems. A data format that can serialize any data structure supported by Serde. Dismiss alert. Hjson , a syntax extension to JSON designed around human reading and editing. Field attributes. Using derive Serde provides a derive macro to generate implementations of the Serialize and Deserialize traits for data structures defined in your crate, allowing them to be represented conveniently in all of Serde's data formats. You only need to set this up if your code is using [derive Serialize, Deserialize ]. Serde provides the layer by which these two groups interact with each other, allowing any supported data structure to be serialized and deserialized using any supported data format. Serializing a data structure containing Arc will serialize a copy of the contents of the Arc each time the Arc is referenced within the data structure. Custom properties. This is used when deriving Serialize for a remote type that has one or more private fields. Serde is a framework for ser ializing and de serializing Rust data structures efficiently and generically.

Serde is a framework for ser ializing and de serializing Rust data structures efficiently and generically.

You signed in with another tab or window. The "derive" feature is only required when using [derive Serialize, Deserialize ] to make Serde work with structs and enums defined in your crate. See the Implementing Serialize section of the manual for more about this. In fact in many situations the interaction between data structure and data format can be completely optimized away by the Rust compiler, leaving Serde serialization to perform the same speed as a handwritten serializer for the specific selection of data structure and data format. It's acceptable to file a support issue in this repo but they tend not to get as many eyes as any of the above and may get closed without a response after some time. Borrow data for this field from the deserializer by using zero-copy deserialization. You signed out in another tab or window. This functionality is based on Rust's [derive] mechanism, just like what you would use to automatically derive implementations of the built-in Clone , Copy , Debug , or other traits. See the derive section of the manual for how to use this. This replaces any trait bounds inferred by Serde for the current field. Deserialize this field from the given name or from its Rust name.