Source code for forml.io.dsl._exception

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"""
Customized DSL errors.
"""
import forml


[docs]class UnprovisionedError(forml.MissingError):
    """Source or Feature resolving exception.

    Raised by DSL parsers when the given *source* or *feature* (typically :class:`dsl.Table
    <forml.io.dsl.Table>` or :class:`dsl.Column <forml.io.dsl.Column>`) can't be resolved
    using the available data sources.
    """


[docs]class UnsupportedError(forml.MissingError):
    """Indicating DSL operation unsupported by the given parser."""


[docs]class GrammarError(forml.InvalidError):
    """Indicating syntactical error in the given DSL query statement."""


class CastError(forml.InvalidError, ValueError):
    """Indicating inability to cast value to a given kind."""