Add pylint to depot_tools.

third_party/pylint/interfaces.py

+# This program is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 2 of the License, or (at your option) any later
+# version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+""" Copyright (c) 2002-2003 LOGILAB S.A. (Paris, FRANCE).
+ http://www.logilab.fr/ -- mailto:contact@logilab.fr
+
+Interfaces for PyLint objects
+"""
+
+__revision__ = "$Id: interfaces.py,v 1.9 2004-04-24 12:14:53 syt Exp $"
+
+from logilab.common.interface import Interface
+
+
+class IChecker(Interface):
+    """This is an base interface, not designed to be used elsewhere than for
+    sub interfaces definition.
+    """
+
+    def open(self):
+        """called before visiting project (i.e set of modules)"""
+
+    def close(self):
+        """called after visiting project (i.e set of modules)"""
+
+##     def open_module(self):
+##         """called before visiting a module"""
+
+##     def close_module(self):
+##         """called after visiting a module"""
+
+
+class IRawChecker(IChecker):
+    """interface for checker which need to parse the raw file
+    """
+
+    def process_module(self, astng):
+        """ process a module
+
+        the module's content is accessible via astng.file_stream
+        """
+
+
+class IASTNGChecker(IChecker):
+    """ interface for checker which prefers receive events according to
+    statement type
+    """
+
+
+class ILinter(Interface):
+    """interface for the linter class
+
+    the linter class will generate events to its registered checkers.
+    Each checker may interact with the linter instance using this API
+    """
+
+    def register_checker(self, checker):
+        """register a new checker class
+
+        checker is a class implementing IrawChecker or / and IASTNGChecker
+        """
+
+    def add_message(self, msg_id, line=None, node=None, args=None):
+        """add the message corresponding to the given id.
+
+        If provided, msg is expanded using args
+
+        astng checkers should provide the node argument,
+        raw checkers should provide the line argument.
+        """
+
+
+class IReporter(Interface):
+    """ reporter collect messages and display results encapsulated in a layout
+    """
+    def add_message(self, msg_id, location, msg):
+        """add a message of a given type
+
+        msg_id is a message identifier
+        location is a 3-uple (module, object, line)
+        msg is the actual message
+        """
+
+    def display_results(self, layout):
+        """display results encapsulated in the layout tree
+        """
+
+
+__all__ = ('IRawChecker', 'IStatable', 'ILinter', 'IReporter')