asdi 0.2.5

Another Simplistic Datalog Implementation (in Rust)
Documentation 
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@startuml

!include options.plantuml

interface std::error::Error
hide "std::error::Error" members

class std::result::Result
hide "std::result::Result" members

namespace asdi::error {
    class SourceLocation {
        line: usize
        column: usize
    }

    enum Error {
        AnonymousVariableNotAllowed
        AttributeDoesNotExist
        AttributeIndexInvalid
        ComparisonIsAlwaysTrue
        ComparisonIsAlwaysFalse
        ExtensionalPredicateInRuleHead
        FactDoesNotConformToSchema
        FormatError
        HeadVariablesMissingInBody
        IncompatibleTypes
        InvalidHeadAtomCount
        InvalidValue
        LanguageFeatureDisabled
        LanguageFeatureUnsupported
        NegativeVariablesNotAlsoPositive
        NotStratifiable
        NullaryFactsNotAllowed
        ParserError
        RelationExists
        RelationDoesNotExist
        Serialization
        SerializationFormatUnknown
        SerializationOperationUnsupported
    }
    hide Error methods

    Error ..|> std::error::Error
    Error .right.> SourceLocation

    class Result << (T,#ADD1B2) type >>

    Result .left.> Error
    Result ..> std::result::Result: base
}

@enduml