Enum CheckLabelsError 

pub enum CheckLabelsError {
    DuplicateLabel(Sym),
    UndefinedBreakTarget(Sym),
    UndefinedContinueTarget(Sym),
    IllegalBreakStatement,
    IllegalContinueStatement,
}

Errors that can occur when checking labels.

Variants

DuplicateLabel(Sym)

A label was used multiple times.

UndefinedBreakTarget(Sym)

A break statement was used with a label that was not defined.

UndefinedContinueTarget(Sym)

A continue statement was used with a label that was not defined.

IllegalBreakStatement

A break statement was used in a non-looping context.

IllegalContinueStatement

A continue statement was used in a non-looping context.

Implementations

impl CheckLabelsError

pub fn message(&self, interner: &Interner) -> String

Returns an error message based on the error.

Trait Implementations

impl Clone for CheckLabelsError

fn clone(&self) -> CheckLabelsError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CheckLabelsError

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

Formats the value using the given formatter.

impl Copy for CheckLabelsError