Enum ProjectorError 

pub enum ProjectorError {
    NotYetImplemented(String),
    CannotProjectImpossibleBinding(SimpleAggregationOp),
    CannotApplyAggregateOperationToTypes(SimpleAggregationOp, ValueTypeSet),
    InvalidProjection(String),
    UnboundVariable(PlainSymbol),
    NoTypeAvailableForVariable(PlainSymbol),
    UnexpectedResultsType(&'static str, &'static str),
    UnexpectedResultsTupleLength(usize, usize),
    AmbiguousAggregates(usize, usize),
    RusqliteError(String),
    DbError(DbError),
    PullError(PullError),
}

Variants

NotYetImplemented(String)

We’re just not done yet. Message that the feature is recognized but not yet implemented.

CannotProjectImpossibleBinding(SimpleAggregationOp)

CannotApplyAggregateOperationToTypes(SimpleAggregationOp, ValueTypeSet)

InvalidProjection(String)

UnboundVariable(PlainSymbol)

NoTypeAvailableForVariable(PlainSymbol)

UnexpectedResultsType(&'static str, &'static str)

UnexpectedResultsTupleLength(usize, usize)

AmbiguousAggregates(usize, usize)

RusqliteError(String)

DbError(DbError)

PullError(PullError)

Trait Implementations

impl Debug for ProjectorError

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

Formats the value using the given formatter.

impl Display for ProjectorError

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

Formats the value using the given formatter.

impl Error for ProjectorError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl From<DbError> for ProjectorError

fn from(error: DbError) -> ProjectorError

Converts to this type from the input type.

impl From<Error> for ProjectorError

fn from(error: Error) -> ProjectorError

Converts to this type from the input type.

impl From<ProjectorError> for MentatError

fn from(error: ProjectorError) -> MentatError

Converts to this type from the input type.

impl From<PullError> for ProjectorError

fn from(error: PullError) -> ProjectorError

Converts to this type from the input type.

impl From<SqlError> for ProjectorError

fn from(error: SqlError) -> ProjectorError

Converts to this type from the input type.