Struct Envelope 

pub struct Envelope<T> {
    pub origin: Origin,
    pub data: T,
}

Envelope wrapping a value with its provenance

Values flowing through the system carry their origin for:

• Rendering: find the right template based on origin
• Debugging: trace where values came from
• Routing: know which plugin to call for further operations

Fields

origin: Origin

Where this value came from

data: T

The actual data

Implementations

impl<T> Envelope<T>

pub fn new(origin: Origin, data: T) -> Envelope<T>

Create a new envelope

pub fn from_handle(handle: &Handle, data: T) -> Envelope<T>

Create envelope from a handle (uses handle’s origin)

pub fn map<U, F>(self, f: F) -> Envelope<U>

where F: FnOnce(T) -> U,

Map the data while preserving origin

pub fn data(&self) -> &T

Get reference to the data

pub fn origin(&self) -> &Origin

Get reference to the origin

pub fn into_inner(self) -> T

Unwrap the envelope, returning the data

Trait Implementations

impl<T> Clone for Envelope<T>

where T: Clone,

fn clone(&self) -> Envelope<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> Debug for Envelope<T>

where T: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'de, T> Deserialize<'de> for Envelope<T>

where T: Deserialize<'de>,

fn deserialize<__D>( __deserializer: __D, ) -> Result<Envelope<T>, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T> JsonSchema for Envelope<T>

where T: JsonSchema,

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl<T> Serialize for Envelope<T>

where T: Serialize,

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.