Crate relay_protocol

Types and traits for building JSON-based protocols and schemas

This crate provides the types and aliases that are used for the meta part of the protocol. This is the core annotation system as well as the dynamic value parts and the metadata that goes with it.

Test Utilities

When the test feature is enabled, this crate exposes the additional assert_annotated_snapshot macro. This can be used with insta to render and compare snapshots of annotated data with meta data.

Re-exports

• pub use self::condition::RuleCondition;

Modules

• condition
  Types to specify conditions on data.

Macros

• assert_annotated_snapshot
  Asserts the snapshot of an annotated structure using insta.
• derive_string_meta_structure
  Derives the FromValue, IntoValue, and Empty traits using the string representation.
• get_path
  Returns a reference to the typed Annotated value at a given path.
• get_value
  Returns a reference to the typed value at a given path in an Annotated.

Structs

• Annotated
  Wrapper for data fields with optional meta data.
• Arr
  Borrowed version of Array.
• Error
  An error with an enumerable kind and optional data.
• GetterIter
  A type-erased iterator over a collection of Getters.
• Meta
  Meta information for a data field in the event payload.
• MetaTree
  Represents a tree of meta objects.
• Obj
  Borrowed version of Object.
• Remark
  Information on a modified section in a string.
• SerializableAnnotated
  An utility to serialize annotated objects with payload.
• ValueDescription
  Helper type that renders out a description of the value.

Enums

• ErrorKind
  The kind of an Error.
• RemarkType
  Gives an indication about the type of remark.
• SkipSerialization
  Defines behavior for skipping the serialization of fields.
• Val
  Borrowed version of Value.
• Value
  Represents a boxed value.

Traits

• Empty
  A value that can be empty.
• FromValue
  Implemented for all meta structures.
• Getter
  A type that supports field access by paths.
• IntoValue
  Implemented for all meta structures.

Functions

• estimate_size
  Estimates the size in bytes this would be in JSON.
• estimate_size_flat
  Estimates the size in bytes this would be in JSON, but does not recurse into objects or arrays.
• to_value
  Convert T into a Value.

Type Aliases

• Array
  Alias for typed arrays.
• Map
  Alias for maps.
• MetaMap
  Meta for children.
• Object
  Alias for typed objects.
• Range
  The start (inclusive) and end (exclusive) indices of a Remark.

Derive Macros

• Empty
• FromValue
• IntoValue