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# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
#
#
# Copyright (C) 2006 Holger Hans Peter Freyther
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# Neither the name Holger Hans Peter Freyther nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
"""
What is a method pool?
BitBake has a global method scope where .bb, .inc and .bbclass
files can install methods. These methods are parsed from strings.
To avoid recompiling and executing these string we introduce
a method pool to do this task.
This pool will be used to compile and execute the functions. It
will be smart enough to
"""
from bb.utils import better_compile, better_exec
from bb import error
# A dict of modules we have handled
# it is the number of .bbclasses + x in size
_parsed_methods = { }
_parsed_fns = { }
def insert_method(modulename, code, fn):
"""
Add code of a module should be added. The methods
will be simply added, no checking will be done
"""
comp = better_compile(code, "<bb>", fn )
better_exec(comp, __builtins__, code, fn)
# now some instrumentation
code = comp.co_names
for name in code:
if name in ['None', 'False']:
continue
elif name in _parsed_fns and not _parsed_fns[name] == modulename:
error( "Error Method already seen: %s in' %s' now in '%s'" % (name, _parsed_fns[name], modulename))
else:
_parsed_fns[name] = modulename
def check_insert_method(modulename, code, fn):
"""
Add the code if it wasnt added before. The module
name will be used for that
Variables:
@modulename a short name e.g. base.bbclass
@code The actual python code
@fn The filename from the outer file
"""
if not modulename in _parsed_methods:
return insert_method(modulename, code, fn)
_parsed_methods[modulename] = 1
def parsed_module(modulename):
"""
Inform me file xyz was parsed
"""
return modulename in _parsed_methods
def get_parsed_dict():
"""
shortcut
"""
return _parsed_methods
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