Enum IoValue 

pub enum IoValue {
    Pure(RtObject),
    Error(IoError),
    Unit,
}

The result of executing an I/O action.

Variants

Pure(RtObject)

Pure value (no side effects performed).

Error(IoError)

Error occurred.

Unit

Operation returned nothing meaningful (e.g., println).

Implementations

impl IoValue

pub fn pure_val(obj: RtObject) -> Self

Create a pure value.

pub fn error(err: IoError) -> Self

Create an error.

pub fn unit() -> Self

Create a unit value.

pub fn is_error(&self) -> bool

Check if this is an error.

pub fn to_rt_object(&self) -> RtObject

Convert to a runtime object.

pub fn to_result(self) -> IoResult<RtObject>

Convert to a result.

Trait Implementations

impl Clone for IoValue

fn clone(&self) -> IoValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IoValue

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

Formats the value using the given formatter.