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.

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    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

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    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 

    29 from webkitpy.tool.steps.abstractstep import AbstractStep

    30 

    31 

    32 # FIXME: Unify with StepSequence?  I'm not sure yet which is the better design.

    33 class 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)