b3j0f.annotation.check module

Interceptors dedicated to decorate decorations.

class b3j0f.annotation.check.Condition(pre_cond=None, post_cond=None, *args, **kwargs)

Bases: b3j0f.annotation.interception.PrivateInterceptor

Apply a pre/post condition on an annotated element call.

exception ConditionError

Bases: exceptions.Exception

Handle condition errors

Condition.POST_COND = 'post_cond'

post condition attribute name

Condition.PRE_COND = 'pre_cond'

pre condition attribute name

exception Condition.PostConditionError

Bases: b3j0f.annotation.check.ConditionError

Handle post condition errors

exception Condition.PreConditionError

Bases: b3j0f.annotation.check.ConditionError

Handle pre condition errors

Condition.RESULT = 'result'

result attribute name

Condition.enable

Condition.interception

Condition.override

Condition.post_cond

Condition.pre_cond

Condition.propagate

Condition.targets

class b3j0f.annotation.check.MaxCount(count=1, *args, **kwargs)

Bases: b3j0f.annotation.check.AnnotationChecker

Set a maximum count of target instantiation by annotated element.

DEFAULT_COUNT = 1

exception Error

Bases: exceptions.Exception

MaxCount.bind_target(target, ctx=None)

Bind self annotation to target.

Parameters:

• target – target to annotate.
• ctx – target ctx.

Returns:

bound target.

MaxCount.count

MaxCount.enable

MaxCount.interception

MaxCount.override

MaxCount.propagate

MaxCount.targets

class b3j0f.annotation.check.Target(types=None, rule='or', instances=False, *args, **kwargs)

Bases: b3j0f.annotation.check.AnnotationChecker

Check type of all decorated elements by this decorated Annotation in using a list of types.

This list of types is checked related to logical rules such as OR and AND.

• OR: true if at least one type is checked.
• AND: true if all types are checked.

AND = 'and'

and rule

CALLABLE()

callable type

DEFAULT_INSTANCES = False

default instances condition

DEFAULT_RULE = 'or'

default rule

exception Error

Bases: exceptions.Exception

Target.FUNC

function type

alias of function

Target.INSTANCES = 'instances'

Target.OR = 'or'

or rule

Target.ROUTINE = 'routine'

routine type

Target.RULE = 'rule'

Target.TYPES = 'types'

Target.bind_target(target, ctx=None)

Bind self annotation to target.

Parameters:

• target – target to annotate.
• ctx – target ctx.

Returns:

bound target.

Target.enable

Target.instances

Target.interception

Target.override

Target.propagate

Target.rule

Target.targets

Target.types