Struct Slice 

pub struct Slice { /* private fields */ }

A slice object (4.4, spec-0.4.0): a cell object with at least one argument open ("*") or bounded by a range object {"hi", "lo", "type"}, or a version slice {"cell", "from", "to"}. Its slice id is SHA-256 of its canonical bytes; for an unbounded slice it is the id of the cell object with the markers.

An object with exactly the members cell, from and to is a version slice; any other is read as a cell object. Within a cell object, an argument that is an object with exactly hi, lo and type is a range; any other object is read as a typed scalar.

Implementations

impl Slice

pub fn from_json(bytes: &[u8]) -> Result<Slice>

Parses a slice object from JSON text: strict JSON, structure (E_SCHEMA), canonical form in JCS order (the codes of 3 and 4.5; a range’s type, then hi, then lo; E_CANON_TYPE for a boolean or blob range), then E_SLICE for a cell object without an open or ranged argument, or a version slice whose cell has one.

pub fn from_value(v: &Value) -> Result<Slice>

Checks a parsed JSON value as a slice object.

pub fn canonical(&self) -> Vec<u8>

The canonical bytes (6.2).

pub fn id(&self) -> &str

The slice id: SHA-256 of the canonical bytes, lowercase hex.

pub fn to_value(&self) -> Value

The JSON form.

pub fn function_name(&self) -> String

The fully qualified name of the slice’s function, <ns>/<fn> (of the version slice’s cell for a version slice).

pub fn fn_hash(&self) -> &str

The function hash the slice is over.

pub fn is_version_slice(&self) -> bool

Whether this is a version slice ({"cell", "from", "to"}).

pub fn contains(&self, receipt: &Receipt) -> bool

Whether receipt belongs to the slice (10.1 step 7.5): for a cell object, the same ns, fn and fn_hash, the same argument names, bound arguments equal, ranged arguments of the range’s type and within it, any value for an open argument; for a version slice, the same cell with a tx in [from, to]. That no two members of a slice are one cell is a property of the member set, checked by verify.

Trait Implementations

impl Clone for Slice

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 Slice

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

Formats the value using the given formatter.

impl Eq for Slice

impl Hash for Slice

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 Slice

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Slice