1# Copyright (C) 2010 Google Inc. All rights reserved. 2# 3# Redistribution and use in source and binary forms, with or without 4# modification, are permitted provided that the following conditions are 5# met: 6# 7# * Redistributions of source code must retain the above copyright 8# notice, this list of conditions and the following disclaimer. 9# * Redistributions in binary form must reproduce the above 10# copyright notice, this list of conditions and the following disclaimer 11# in the documentation and/or other materials provided with the 12# distribution. 13# * Neither the name of Google Inc. nor the names of its 14# contributors may be used to endorse or promote products derived from 15# this software without specific prior written permission. 16# 17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29from webkitpy.tool.steps.abstractstep import AbstractStep 30 31 32# FIXME: Unify with StepSequence? I'm not sure yet which is the better design. 33class MetaStep(AbstractStep): 34 substeps = [] # Override in subclasses 35 def __init__(self, tool, options): 36 AbstractStep.__init__(self, tool, options) 37 self._step_instances = [] 38 for step_class in self.substeps: 39 self._step_instances.append(step_class(tool, options)) 40 41 @staticmethod 42 def _collect_options_from_steps(steps): 43 collected_options = [] 44 for step in steps: 45 collected_options = collected_options + step.options() 46 return collected_options 47 48 @classmethod 49 def options(cls): 50 return cls._collect_options_from_steps(cls.substeps) 51 52 def run(self, state): 53 for step in self._step_instances: 54 step.run(state) 55