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query.private.Predicate.validate_bool

validate_bool ( self ) → Result<(), FilterExpressionError> method [source] ¶ method [source] ¶ validate_bool: Validate that this predicate is a well-formed boolean predicate.

Errors
Returns FilterExpressionErrorKind::UnknownOperator for another scalar family and FilterExpressionErrorKind::InvalidStructure for an invalid equality shape.
The crate::query::Filterable example executes this method in a hand-written generated-code expansion.

0 declared, 0 inherited