Struct ExternalNode 

pub struct ExternalNode { /* private fields */ }

Node for referencing procedures not present in a given MastForest (hence “external”).

External nodes can be used to verify the integrity of a program’s hash while keeping parts of the program secret. They also allow a program to refer to a well-known procedure that was not compiled with the program (e.g. a procedure in the core library).

The hash of an external node is the hash of the procedure it represents, such that an external node can be swapped with the actual subtree that it represents without changing the MAST root.

Trait Implementations

impl Clone for ExternalNode

fn clone(&self) -> ExternalNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExternalNode

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

Formats the value using the given formatter.

impl From<ExternalNode> for MastNode

fn from(value: ExternalNode) -> MastNode

Converts to this type from the input type.

impl MastNodeErrorContext for ExternalNode

fn decorators<'a>( &'a self, forest: &'a MastForest, ) -> impl Iterator<Item = (usize, DecoratorId)> + 'a

The list of decorators tied to this node, along with their associated index.

fn get_assembly_op<'m>( &self, mast_forest: &'m MastForest, target_op_idx: Option<usize>, ) -> Option<&'m AssemblyOp>

Returns the AssemblyOp associated with this node and operation (if provided), if any.

impl MastNodeExt for ExternalNode

fn digest(&self) -> Word

Returns the commitment to the MAST node referenced by this external node.

The hash of an external node is the hash of the procedure it represents, such that an external node can be swapped with the actual subtree that it represents without changing the MAST root.

fn before_enter<'a>(&'a self, forest: &'a MastForest) -> &'a [DecoratorId]

Returns the decorators to be executed before this node is executed.

fn after_exit<'a>(&'a self, forest: &'a MastForest) -> &'a [DecoratorId]

Returns the decorators to be executed after this node is executed.

type Builder = ExternalNodeBuilder

Converts this node into its corresponding builder, reusing allocated data where possible.

fn to_display<'a>( &'a self, mast_forest: &'a MastForest, ) -> Box<dyn Display + 'a>

Returns a display formatter for this node.

fn to_pretty_print<'a>( &'a self, mast_forest: &'a MastForest, ) -> Box<dyn PrettyPrint + 'a>

Returns a pretty printer for this node.

fn has_children(&self) -> bool

Returns true if the this node has children.

fn append_children_to(&self, _target: &mut Vec<MastNodeId>)

Appends the NodeIds of the children of this node, if any, to the vector.

fn for_each_child<F>(&self, _f: F)

where F: FnMut(MastNodeId),

Executes the given closure for each child of this node.

fn domain(&self) -> BaseElement

Returns the domain of this node.

fn to_builder( self, forest: &MastForest, ) -> <ExternalNode as MastNodeExt>::Builder

fn verify_node_in_forest(&self, forest: &MastForest)

Verifies that this node is stored at the ID in its decorators field in the forest.

impl PartialEq for ExternalNode

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Eq for ExternalNode

impl StructuralPartialEq for ExternalNode