"""risc-v-gsp-rm-debugger error types. Keep them few and meaningful."""
from __future__ import annotations


class GreenEyeError(Exception):
    """Base class for all risc-v-gsp-rm-debugger errors."""


class RspError(GreenEyeError):
    """Base class for gdbstub RSP transport errors."""


class RspTimeout(RspError):
    """The stub did not answer within the timeout."""


class RspProtocolError(RspError):
    """The stub answered with a malformed packet or an error reply."""


class TargetError(GreenEyeError):
    """QEMU target lifecycle/configuration error."""


class SymbolNotFound(GreenEyeError):
    """A requested symbol is not in the symbol database."""


class StructError(GreenEyeError):
    """Structure schema/decode error."""