Enum boa_engine::builtins::promise::OperationType

pub enum OperationType {
    Reject,
    Handle,
}

The operation type of the HostPromiseRejectionTracker abstract operation.

Note

Per the spec:

If operation is “handle”, an implementation should not hold a reference to promise in a way that would interfere with garbage collection. An implementation may hold a reference to promise if operation is “reject”, since it is expected that rejections will be rare and not on hot code paths.

Variants

Reject

A promise was rejected without any handlers.

Handle

A handler was added to a rejected promise for the first time.

Trait Implementations

impl Clone for OperationType

fn clone(&self) -> OperationType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for OperationType

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

Formats the value using the given formatter.

impl PartialEq for OperationType

fn eq(&self, other: &OperationType) -> 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 Copy for OperationType

impl Eq for OperationType

impl StructuralPartialEq for OperationType