Enum CastFailureMode 

pub enum CastFailureMode {
    Error,
    NullFallback,
}

What a cast does when the value cannot be converted to the target type.

Variants

Error

The cast raises an error, as CAST(expr AS type) and expr::type do.

NullFallback

The cast evaluates to NULL, as TRY_CAST(expr AS type) does. Errors raised while evaluating expr itself still propagate.

Trait Implementations

impl Clone for CastFailureMode

fn clone(&self) -> CastFailureMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CastFailureMode

impl Debug for CastFailureMode

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

Formats the value using the given formatter.

impl Eq for CastFailureMode

impl<T: AstInfo, T2: AstInfo> FoldNode<T, T2> for CastFailureMode

type Folded = CastFailureMode

fn fold<F: Fold<T, T2>>(self, folder: &mut F) -> Self::Folded

impl Hash for CastFailureMode

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for CastFailureMode

fn cmp(&self, other: &CastFailureMode) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for CastFailureMode

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for CastFailureMode

fn partial_cmp(&self, other: &CastFailureMode) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for CastFailureMode

impl<'ast, T: AstInfo> VisitMutNode<'ast, T> for CastFailureMode

fn visit_mut<V: VisitMut<'ast, T>>(&'ast mut self, visitor: &mut V)

impl<'ast, T: AstInfo> VisitNode<'ast, T> for CastFailureMode

fn visit<V: Visit<'ast, T>>(&'ast self, visitor: &mut V)