Struct ConstEvalError

pub struct ConstEvalError(/* private fields */);

Error indicating constant evaluation failed.

This error emitted when

1. an expression can’t be evaluated in compilation time
2. arithmetic overflow occurred during evaluation
3. zero division is detected during evaluation

Can’t be created unless a diagnostic has been emitted, and thus a DiagnosticVoucher has been obtained. (See comment on TypeError)

NOTE: Clone is required because these are stored in a salsa db. Please don’t clone these manually.

Implementations

impl ConstEvalError

pub fn new(voucher: DiagnosticVoucher) -> Self

Trait Implementations

impl Clone for ConstEvalError

fn clone(&self) -> ConstEvalError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ConstEvalError

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

Formats the value using the given formatter.

impl From<ConstEvalError> for FatalError

fn from(err: ConstEvalError) -> Self

Converts to this type from the input type.

impl From<ConstEvalError> for TypeError

fn from(err: ConstEvalError) -> Self

Converts to this type from the input type.

impl From<FatalError> for ConstEvalError

fn from(err: FatalError) -> Self

Converts to this type from the input type.

impl From<IncompleteItem> for ConstEvalError

fn from(err: IncompleteItem) -> Self

Converts to this type from the input type.

impl From<TypeError> for ConstEvalError

fn from(err: TypeError) -> Self

Converts to this type from the input type.

impl Hash for ConstEvalError

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 PartialEq for ConstEvalError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ConstEvalError

impl StructuralPartialEq for ConstEvalError