Crate scale_value

This crate exposes the Value type and related subtypes, which are used as the runtime representations of SCALE encoded data (much like serde_json::Value is a runtime representation of JSON data).

Value’s can be:

• Encoded and decoded from SCALE bytes via ::scale_encode::EncodeAsType and ::scale_decode::DecodeAsType traits (or by calling crate::scale::decode_as_type and crate::scale::encode_as_type).
• Parsed to and from strings by calling crate::stringify::from_str and crate::stringify::to_string). Parsing from strings requires the from_string feature to be enabled.
• Serialized and deserialized via serde traits (for example, to and from JSON). They can also be serialized from and to other types with the relevant serde derives on. These require the serde feature to be enabled.
• Accessed ergonomically via the At trait.

Modules

scale

Encoding and decoding SCALE bytes into a crate::Value.

serde

Serializing and deserializing a crate::Value into/from other types via serde.

stringify

Converting a crate::Value to or from strings.

Macros

value

Construct a scale_value::Value

Structs

BitSequence

This represents a sequence of boolean values, packed into bits.

Location

A struct representing a location to access in a Value.

Value

Value holds a representation of some value that has been decoded, as well as some arbitrary context.

Variant

This represents the value of a specific variant from an enum, and contains the name of the variant, and the named/unnamed values associated with it.

Enums

Composite

A named or unnamed struct-like, array-like or tuple-like set of values. This is used to represent a range of composite values on their own, or as values for a specific Variant.

Primitive

A “primitive” value (this includes strings).

ValueDef

The underlying shape of a given value.

Traits

At

This trait allows indexing into Values (and options of Values) using the At::at() function. It’s a little like Rust’s core::ops::Index trait, but adapted so that we can return and work with optionals.