Enum rustc_infer::traits::FulfillmentErrorCode

pub enum FulfillmentErrorCode<'tcx> {
    Cycle(Vec<PredicateObligation<'tcx>>),
    SelectionError(SelectionError<'tcx>),
    ProjectionError(MismatchedProjectionTypes<'tcx>),
    SubtypeError(ExpectedFound<Ty<'tcx>>, TypeError<'tcx>),
    ConstEquateError(ExpectedFound<Const<'tcx>>, TypeError<'tcx>),
    Ambiguity {
        overflow: Option<bool>,
    },
}

Variants

Cycle(Vec<PredicateObligation<'tcx>>)

Inherently impossible to fulfill; this trait is implemented if and only if it is already implemented.

SelectionError(SelectionError<'tcx>)

ProjectionError(MismatchedProjectionTypes<'tcx>)

SubtypeError(ExpectedFound<Ty<'tcx>>, TypeError<'tcx>)

ConstEquateError(ExpectedFound<Const<'tcx>>, TypeError<'tcx>)

Ambiguity

Fields

overflow: Option<bool>

Overflow is only Some(suggest_recursion_limit) when using the next generation trait solver -Znext-solver. With the old solver overflow is eagerly handled by emitting a fatal error instead.

Trait Implementations

impl<'tcx> Clone for FulfillmentErrorCode<'tcx>

fn clone(&self) -> FulfillmentErrorCode<'tcx>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx> Debug for FulfillmentErrorCode<'tcx>

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

Formats the value using the given formatter.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 56 bytes

Size for each variant:

• Cycle: 31 bytes
• SelectionError: 23 bytes
• ProjectionError: 39 bytes
• SubtypeError: 55 bytes
• ConstEquateError: 55 bytes
• Ambiguity: 1 byte