1# Copyright (c) 2008 The Hewlett-Packard Development Company
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Nathan Binkert
28
| 1# Copyright (c) 2008 The Hewlett-Packard Development Company
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Nathan Binkert
28
|
| 29from __future__ import print_function
30from __future__ import absolute_import
31
|
29# Simple importer that allows python to import data from a dict of
30# code objects. The keys are the module path, and the items are the
31# filename and bytecode of the file.
32class CodeImporter(object):
33 def __init__(self):
34 self.modules = {}
35
36 def add_module(self, filename, abspath, modpath, code):
37 if modpath in self.modules:
38 raise AttributeError("%s already found in importer" % modpath)
39
40 self.modules[modpath] = (filename, abspath, code)
41
42 def find_module(self, fullname, path):
43 if fullname in self.modules:
44 return self
45
46 return None
47
48 def load_module(self, fullname):
49 # Because the importer is created and initialized in its own
50 # little sandbox (in init.cc), the globals that were available
51 # when the importer module was loaded and CodeImporter was
52 # defined are not available when load_module is actually
53 # called. Soooo, the imports must live here.
54 import imp
55 import os
56 import sys
57
58 try:
59 mod = sys.modules[fullname]
60 except KeyError:
61 mod = imp.new_module(fullname)
62 sys.modules[fullname] = mod
63
64 try:
65 mod.__loader__ = self
66 srcfile,abspath,code = self.modules[fullname]
67
68 override = os.environ.get('M5_OVERRIDE_PY_SOURCE', 'false').lower()
69 if override in ('true', 'yes') and os.path.exists(abspath):
70 src = open(abspath, 'r').read()
71 code = compile(src, abspath, 'exec')
72
73 if os.path.basename(srcfile) == '__init__.py':
74 mod.__path__ = fullname.split('.')
75 mod.__package__ = fullname
76 else:
77 mod.__package__ = fullname.rpartition('.')[0]
78 mod.__file__ = srcfile
79
80 exec(code, mod.__dict__)
81 except Exception:
82 del sys.modules[fullname]
83 raise
84
85 return mod
86
87# Create an importer and add it to the meta_path so future imports can
88# use it. There's currently nothing in the importer, but calls to
89# add_module can be used to add code.
90import sys
91importer = CodeImporter()
92add_module = importer.add_module
93sys.meta_path.append(importer)
| 32# Simple importer that allows python to import data from a dict of
33# code objects. The keys are the module path, and the items are the
34# filename and bytecode of the file.
35class CodeImporter(object):
36 def __init__(self):
37 self.modules = {}
38
39 def add_module(self, filename, abspath, modpath, code):
40 if modpath in self.modules:
41 raise AttributeError("%s already found in importer" % modpath)
42
43 self.modules[modpath] = (filename, abspath, code)
44
45 def find_module(self, fullname, path):
46 if fullname in self.modules:
47 return self
48
49 return None
50
51 def load_module(self, fullname):
52 # Because the importer is created and initialized in its own
53 # little sandbox (in init.cc), the globals that were available
54 # when the importer module was loaded and CodeImporter was
55 # defined are not available when load_module is actually
56 # called. Soooo, the imports must live here.
57 import imp
58 import os
59 import sys
60
61 try:
62 mod = sys.modules[fullname]
63 except KeyError:
64 mod = imp.new_module(fullname)
65 sys.modules[fullname] = mod
66
67 try:
68 mod.__loader__ = self
69 srcfile,abspath,code = self.modules[fullname]
70
71 override = os.environ.get('M5_OVERRIDE_PY_SOURCE', 'false').lower()
72 if override in ('true', 'yes') and os.path.exists(abspath):
73 src = open(abspath, 'r').read()
74 code = compile(src, abspath, 'exec')
75
76 if os.path.basename(srcfile) == '__init__.py':
77 mod.__path__ = fullname.split('.')
78 mod.__package__ = fullname
79 else:
80 mod.__package__ = fullname.rpartition('.')[0]
81 mod.__file__ = srcfile
82
83 exec(code, mod.__dict__)
84 except Exception:
85 del sys.modules[fullname]
86 raise
87
88 return mod
89
90# Create an importer and add it to the meta_path so future imports can
91# use it. There's currently nothing in the importer, but calls to
92# add_module can be used to add code.
93import sys
94importer = CodeImporter()
95add_module = importer.add_module
96sys.meta_path.append(importer)
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