Enum solana_libra_vm_runtime_types::value::ReferenceValue

pub enum ReferenceValue {
    Reference(Reference),
    GlobalRef(GlobalRef),
}

The wrapper for all things reference in the VM. Right now we have 2 kind of references: local and global. This enum wraps both and offers a common API.

Variants

Reference(Reference)

GlobalRef(GlobalRef)

Methods

impl ReferenceValue

Implementation for reference opcodes.

A reference in the runtime can have different shapes so any time a reference is expected a ReferenceValue is created by popping whatever reference is on the stack. Operations on the reference (via opcodes) are then invoked on a ReferenceValue.

pub fn new(value: Value) -> VMResult<Self>

Create a ReferenceValue from a Value popped off the stack. Fails if the value is not a reference of some kind.

pub fn borrow_field(self, field_offset: usize) -> VMResult<Value>

Borrow a field from the reference if the reference is to a struct.

pub fn read_ref(self) -> VMResult<Value>

Read the value pointed to by the reference.

pub fn write_ref(self, value: Value)

Write value to the location pointed to by the reference.

Trait Implementations

impl Clone for ReferenceValue

fn clone(&self) -> ReferenceValue

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ReferenceValue

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

Formats the value using the given formatter.

impl Eq for ReferenceValue

impl PartialEq<ReferenceValue> for ReferenceValue

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

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

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

This method tests for !=.

impl StructuralEq for ReferenceValue

impl StructuralPartialEq for ReferenceValue