Enum Signal 

pub enum Signal {
    StopRun,
    GoBack,
    SortStopped,
    ClosedOutput,
    DeclarativeExit,
}

Control flow passed up as an error to the statement that takes it.

Variants

StopRun

STOP RUN in a USE BEFORE REPORTING procedure or a user-defined function: the statement that ran it ends the run.

GoBack

GOBACK in a USE BEFORE REPORTING procedure.

SortStopped

RELEASE or RETURN stops the SORT or MERGE, with why as the message.

ClosedOutput

The reader of DISPLAY output went away, as head does: not the program’s failure.

DeclarativeExit

An EXCEPTION/ERROR procedure ended in GO TO, STOP RUN or GOBACK, which the statement that ran it carries out.

Trait Implementations

impl Clone for Signal

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Signal

impl Debug for Signal

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

Formats the value using the given formatter.

impl Decode for Signal

fn decode(r: &mut Reader<'_>) -> Result<Self, ModuleError>

impl Encode for Signal

fn encode(&self, w: &mut Writer)

impl Eq for Signal

impl PartialEq for Signal

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Signal