Struct oasis_core_runtime::storage::mkvs::NodePointer

pub struct NodePointer {
    pub clean: bool,
    pub hash: Hash,
    pub node: Option<Rc<RefCell<NodeBox>>>,
    pub cache_extra: Option<NonNull<CacheItemBox<NodePointer>>>,
}

A pointer to a node in the tree.

Fields

clean: bool

hash: Hash

node: Option<Rc<RefCell<NodeBox>>>

cache_extra: Option<NonNull<CacheItemBox<NodePointer>>>

Implementations

impl NodePointer

pub fn null_ptr() -> NodePtrRef

Construct a null pointer.

pub fn hash_ptr(hash: Hash) -> NodePtrRef

Construct a hash-only pointer.

pub fn from_node(node: NodeBox) -> NodePtrRef

Construct a node pointer from a full node.

pub fn is_null(&self) -> bool

Check if the pointer is a null pointer.

pub fn has_node(&self) -> bool

Check if the pointer has a resolved reference to a concrete node.

pub fn get_node(&self) -> Rc<RefCell<NodeBox>>

Get a reference to the node the pointer is pointing to.

pub fn extract(&self) -> NodePtrRef

Return a copy of this pointer containing only hash references.

Trait Implementations

impl Debug for NodePointer

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

Formats the value using the given formatter.

impl Default for NodePointer

fn default() -> NodePointer

Returns the “default value” for a type.

impl PartialEq for NodePointer

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for NodePointer