Enum Change 

pub enum Change {
    Invert,
    ReturnUndefined,
    ValueUndefined,
    ExpressionUndefined,
    Skip,
    Flip,
    BareError,
}

Variants

Invert

if: the condition inverted, each direction asked separately.

ReturnUndefined

return x: returns undefined without evaluating x.

ValueUndefined

A declaration with a value: the value becomes undefined.

ExpressionUndefined

An expression point that is not a statement (a JSX expression).

Skip

Anything else: the statement is skipped.

Flip

A boolean literal returned or declared: it becomes the other one. false becoming undefined changes nothing a truthiness check reads, so that change could never be caught.

BareError

A TypeScript throw: it throws a bare new Error() instead. Deleting it seldom compiles: a throw usually guards the narrowing the next line relies on (if ('error' in result) throw ...; return result.result is TS2339 without it). Keeping the throw keeps the types, and asks whether any test checks which error comes out.

Trait Implementations

impl Clone for Change

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 Change

impl Debug for Change

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

Formats the value using the given formatter.

impl Eq for Change

impl PartialEq for Change

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Change

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Change