TP0224

Error: invalid decorator

Messages

unknown decorator '@<d>'
'@<d>' cannot be used here (with help '@dataclass' goes on a class, '@override' on a method)
duplicate decorator '@<d>'
'@<d>' cannot be used here, with help '@<d>' goes on a method, for a method’s decorator elsewhere
'@<a>' cannot be combined with '@<b>'
'@abstractmethod' needs a class deriving from 'ABC'
'@<x>.setter' needs a property '<x>' just above it (M28)

Example

From the golden case tests/cases/m39/tp0224_decorators.tpn:

@dataclass(slots=True)
class A:
    n: int

@dataclass(frozen=1)
class B:
    n: int

@final(strict=True)
class C:
    pass

The compiler reports:

tp0224_decorators.tpn:1:1: error TP0224: '@dataclass' takes only 'frozen=' and 'order=', each True or False
tp0224_decorators.tpn:5:1: error TP0224: '@dataclass' takes only 'frozen=' and 'order=', each True or False
tp0224_decorators.tpn:9:1: error TP0224: '@final' takes no arguments

The specification lists every code.