102 lines
3.4 KiB
Python
102 lines
3.4 KiB
Python
# ex:ts=4:sw=4:sts=4:et
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# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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#
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#
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# Copyright (C) 2006 Holger Hans Peter Freyther
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# Neither the name Holger Hans Peter Freyther nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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"""
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What is a method pool?
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BitBake has a global method scope where .bb, .inc and .bbclass
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files can install methods. These methods are parsed from strings.
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To avoid recompiling and executing these string we introduce
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a method pool to do this task.
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This pool will be used to compile and execute the functions. It
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will be smart enough to
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"""
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from bb.utils import better_compile, better_exec
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from bb import error
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# A dict of modules we have handled
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# it is the number of .bbclasses + x in size
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_parsed_methods = { }
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_parsed_fns = { }
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def insert_method(modulename, code, fn):
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"""
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Add code of a module should be added. The methods
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will be simply added, no checking will be done
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"""
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comp = better_compile(code, "<bb>", fn )
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better_exec(comp, __builtins__, code, fn)
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# hack hack hack XXX
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return
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# now some instrumentation
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code = comp.co_names
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for name in code:
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if name in ['None', 'False']:
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continue
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elif name in _parsed_fns and not _parsed_fns[name] == modulename:
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error( "Error Method already seen: %s in' %s' now in '%s'" % (name, _parsed_fns[name], modulename))
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else:
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_parsed_fns[name] = modulename
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def check_insert_method(modulename, code, fn):
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"""
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Add the code if it wasnt added before. The module
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name will be used for that
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Variables:
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@modulename a short name e.g. base.bbclass
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@code The actual python code
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@fn The filename from the outer file
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"""
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if not modulename in _parsed_methods:
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return insert_method(modulename, code, fn)
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def parsed_module(modulename):
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"""
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Inform me file xyz was parsed
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"""
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return modulename in _parsed_methods
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def get_parsed_dict():
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"""
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shortcut
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"""
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return _parsed_methods
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