Merge pull request #24 from uzumaxy/feature/validators-folder

Split validators.py onto separate python files

Author: eterey

pyvalid/__init__.py

@@ -1,14 +1,10 @@
-from pyvalid.__accepts import Accepts
-from pyvalid.__returns import Returns
+from pyvalid.__accepts import Accepts as accepts
+from pyvalid.__returns import Returns as returns
 from pyvalid.__exceptions import InvalidArgumentNumberError, \
     InvalidReturnType, ArgumentValidationError
 
-
-accepts = Accepts
-returns = Returns
 version = '0.9.5'
 
-
 __all__ = [
     'validators',
     'switch',

pyvalid/validators.py

@@ -0,0 +1,47 @@
+from abc import ABCMeta, abstractmethod
+from six import with_metaclass
+from pyvalid import accepts
+try:
+    from collections.abc import Callable
+except ImportError:
+    from collections import Callable
+
+
+class Validator(Callable):
+
+    @accepts(object, Callable)
+    def __init__(self, func):
+        self.__func = func
+
+    def __call__(self, *args, **kwargs):
+        return self.__func(*args, **kwargs)
+
+
+class AbstractValidator(with_metaclass(ABCMeta, Validator)):
+
+    @property
+    @abstractmethod
+    def checkers(self):
+        raise NotImplementedError
+
+    @abstractmethod
+    def __call__(self):
+        raise NotImplementedError
+
+    def __init__(self):
+        Validator.__init__(self, self)
+        for checker_func, checker_args in list(self.checkers.items()):
+            try:
+                to_del = checker_args[0] is None
+            except (IndexError, TypeError):
+                to_del = True
+            if to_del:
+                del self.checkers[checker_func]
+
+    def _check(self, val):
+        valid = True
+        for checker_func, checker_args in self.checkers.items():
+            valid = checker_func(val, *checker_args)
+            if not valid:
+                break
+        return valid

pyvalid/validators/__base.py

@@ -0,0 +1,15 @@
+from pyvalid.validators.__base import Validator, AbstractValidator
+from pyvalid.validators.__iterable import IterableValidator
+from pyvalid.validators.__number import NumberValidator
+from pyvalid.validators.__string import StringValidator
+
+is_validator = Validator
+
+__all__ = [
+    'is_validator',
+    'Validator',
+    'AbstractValidator',
+    'IterableValidator',
+    'NumberValidator',
+    'StringValidator'
+]