Struct ContentRef 

pub struct ContentRef {
    pub kind: ContentRefKind,
    pub content_id: ContentId,
    pub size_bytes: u64,
    pub checksum: Checksum,
}

Pointer to one immutable content object.

content_id is identity — which object — and the checksum is evidence about its bytes. Separating the two is what lets the final object key exist before the first byte is read.

A ContentRef is safe to publish only after the referenced bytes are durable in the namespace’s content store.

Fields

kind: ContentRefKind

Content strategy used by the referenced object.

content_id: ContentId

Immutable identity of the referenced object.

size_bytes: u64

Complete byte length of the referenced content.

checksum: Checksum

Mandatory checksum over the complete object.

Implementations

impl ContentRef

pub fn blob_v1(content_id: ContentId, bytes: &[u8]) -> Self

Builds a reference to a freshly minted content object holding these bytes.

Every caller of this constructor moves the bytes through the LoonFS write path, so the checksum is trusted by construction.

pub fn blob_v1_streamed( content_id: ContentId, size_bytes: u64, digest: Sha256, ) -> Self

Builds a content reference from a SHA-256 computed while streaming the payload.

Accepting the digest object, rather than an arbitrary checksum string, ensures that the checksum came from the LoonFS write path.

pub fn matches_evidence(&self, evidence: ContentEvidence<'_>) -> bool

Whether evidence proves that a payload has the same bytes as this reference.

Reference evidence returns false when the size or checksum algorithm differs. A checksum that was never computed is not evidence of a match.

pub fn validate(&self) -> Result<(), ContentRefValidationError>

Reports whether the reference is well formed enough to publish.

This is a shape check on the reference itself; proving that the object exists and matches is the storage layer’s job.

Trait Implementations

impl Clone for ContentRef

fn clone(&self) -> ContentRef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContentRef

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ContentRef

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ContentRef

impl Hash for ContentRef

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ContentRef

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ContentRef

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 ContentRef