phases.py 文件源码

def apply(self):
        """
        Applies all extensions and hooks to this phase.
        """

        def apply_extensions(extensions):
            for extension in extensions:
                verify_type_or_subclass(extension, Extension)
                if isclass(extension):
                    extension = extension()
                extension.apply_to_phase(self)
                apply_extensions(extension.extensions)

        apply_extensions(self.extensions)

        for hook in self.hooks:
            hook(self)