Struct StreamResponseExt 

pub struct StreamResponseExt {
    pub error: Option<StreamError>,
}

Optional StreamResponse extension fields, carried as trailing bytes after the StreamResponse message via the two-phase pattern (ADR 013 §Tier 1; see encode_stream_response / parse_stream_response_ext).

Nothing here is covered by slash_sig. New fields are appended to the END and MUST be Option<T> or have a meaningful Default; insertions and reordering are Tier-3.

Fields

error: Option<StreamError>

Open-time refusal class when body.ok == false (NotFound, Declined, Unfunded). Unsigned and informational. VoucherRejected never rides here — it is delivered mid-stream via ClientMessage::StreamError.

Its agreement with the signed body.ok is a cross-half invariant, so it is checked by StreamResponseExt::validate, which takes ok — the base-only StreamResponse::validate cannot see this field.

Implementations

impl StreamResponseExt

pub const fn validate(&self, ok: bool) -> Result<(), MessageValidationError>

Check the unsigned half against the signed ok flag (ADR 005 §cdn/client/v1): ok == true ⇒ no error; ok == false ⇒ exactly one delivery-side error, never the mid-stream-only StreamError::VoucherRejected.

Separate from parsing so forward-compatible trailing bytes do not couple to value checks, and separate from StreamResponse::validate because the rule spans the frozen base and the extension — a receiver holds both and must call each.

Errors

MessageValidationError::StreamErrorWithOk, MessageValidationError::MissingStreamError, or MessageValidationError::VoucherRejectedInResponse.

Trait Implementations

impl Clone for StreamResponseExt

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StreamResponseExt

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

Formats the value using the given formatter.

impl Default for StreamResponseExt

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for StreamResponseExt

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for StreamResponseExt

impl PartialEq for StreamResponseExt

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for StreamResponseExt

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for StreamResponseExt