Struct ComputationNode 

pub struct ComputationNode {
    pub id: String,
    pub op: String,
    pub input_cids: Vec<String>,
    pub output_cid: Option<String>,
    pub gradient_cid: Option<String>,
    pub metadata: HashMap<String, String>,
}

A single node in the gradient computation graph.

Each node represents one tensor operation and holds CIDs that link it to the content-addressed blocks produced and consumed during that operation. This makes the full backward-pass auditable via IPLD provenance.

Fields

id: String

Unique stable identifier for this node (UUID-v4 string)

op: String

Operation name, e.g. "matmul", "relu", "softmax"

input_cids: Vec<String>

CIDs of the input tensor blocks consumed by this operation

output_cid: Option<String>

CID of the output tensor block produced (None until the forward pass runs)

gradient_cid: Option<String>

CID of the gradient tensor block (None until the backward pass runs)

metadata: HashMap<String, String>

Arbitrary string key/value annotations (shape, dtype, device, …)

Implementations

impl ComputationNode

pub fn new(op: impl Into<String>, input_cids: Vec<String>) -> Self

Create a new node with the given operation and input CIDs.

pub fn with_meta(self, key: impl Into<String>, value: impl Into<String>) -> Self

Attach an arbitrary metadata annotation.

Trait Implementations

impl Clone for ComputationNode

fn clone(&self) -> ComputationNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ComputationNode

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ComputationNode

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ComputationNode

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

where __S: Serializer,

Serialize this value into the given Serde serializer.