pub struct Payload(/* private fields */);Expand description
In-memory body of a deferred node.
Payloads have four representations:
- TRUE: the framework sentinel, carrying no data.
- Data: one or more opaque
DataChunks. - Join: one
DataChunkcontaining two child digests (lhs || rhs). - PairList: one or more structural digest pairs, each chunked as
lhs || rhs.
The representation is private: external precompiles can inspect payloads through accessors, but cannot fabricate framework TRUE, empty data, or unchecked structural payloads.
Implementations§
Source§impl Payload
impl Payload
Sourcepub fn as_chunks(&self) -> &[DataChunk] ⓘ
pub fn as_chunks(&self) -> &[DataChunk] ⓘ
Returns this payload’s canonical 8-felt blocks.
- TRUE returns no blocks.
- Data returns its stored chunks.
- Join returns one block containing
lhs || rhs. - PairList returns one block per pair, each containing
lhs || rhs.
Sourcepub fn as_data(&self) -> Result<&[DataChunk], DeferredError>
pub fn as_data(&self) -> Result<&[DataChunk], DeferredError>
Returns this payload’s data chunks.
- Data returns its stored chunks.
- TRUE, Join, and PairList return
DeferredError::InvalidPayload.
Sourcepub fn as_value(&self) -> Result<&DataChunk, DeferredError>
pub fn as_value(&self) -> Result<&DataChunk, DeferredError>
Returns the single data chunk for value-like payloads.
- One-chunk Data returns that chunk.
- Multi-chunk Data, TRUE, Join, and PairList return
DeferredError::InvalidPayload.
Sourcepub fn as_join(&self) -> Result<(Digest, Digest), DeferredError>
pub fn as_join(&self) -> Result<(Digest, Digest), DeferredError>
Returns the child digests for join payloads.
- Join returns
(lhs, rhs). - TRUE, Data, and PairList return
DeferredError::InvalidPayload.
Sourcepub fn as_pair_list(&self) -> Result<Vec<(Digest, Digest)>, DeferredError>
pub fn as_pair_list(&self) -> Result<Vec<(Digest, Digest)>, DeferredError>
Returns the structural digest pairs for pair-list payloads.
- PairList decodes and returns its pairs in payload order.
- TRUE, Data, and Join return
DeferredError::InvalidPayload.
Trait Implementations§
impl Eq for Payload
impl StructuralPartialEq for Payload
Auto Trait Implementations§
impl Freeze for Payload
impl RefUnwindSafe for Payload
impl Send for Payload
impl Sync for Payload
impl Unpin for Payload
impl UnsafeUnpin for Payload
impl UnwindSafe for Payload
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