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#
# $Id: imports.py,v 1.1 2001/11/11 18:51:37 doughellmann Exp $
#
# Copyright 2001 Doug Hellmann.
#
#
# All Rights Reserved
#
# Permission to use, copy, modify, and distribute this software and
# its documentation for any purpose and without fee is hereby
# granted, provided that the above copyright notice appear in all
# copies and that both that copyright notice and this permission
# notice appear in supporting documentation, and that the name of Doug
# Hellmann not be used in advertising or publicity pertaining to
# distribution of the software without specific, written prior
# permission.
#
# DOUG HELLMANN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
# NO EVENT SHALL DOUG HELLMANN BE LIABLE FOR ANY SPECIAL, INDIRECT OR
# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
"""Collects info about imports for a module.
"""
__rcs_info__ = {
#
# Creation Information
#
'module_name' : '$RCSfile: imports.py,v $',
'rcs_id' : '$Id: imports.py,v 1.1 2001/11/11 18:51:37 doughellmann Exp $',
'creator' : 'Doug Hellmann <doug@hellfly.net>',
'project' : 'UNSPECIFIED',
'created' : 'Sun, 11-Nov-2001 10:51:52 EST',
#
# Current Information
#
'author' : '$Author: doughellmann $',
'version' : '$Revision: 1.1 $',
'date' : '$Date: 2001/11/11 18:51:37 $',
}
try:
__version__ = __rcs_info__['version'].split(' ')[1]
except:
__version__ = '0.0'
#
# Import system modules
#
#
# Import Local modules
#
#
# Module
#
class ImportInfo:
"""Collects info about imports for a module.
"""
def __init__(self):
self._straight_imports = []
self._named_imports = {}
return
def addImport(self, moduleName, symbolName=None, asName=None):
"""Add information about an import statement to the saved info.
Parameters
moduleName -- The name of the module involved in the import.
For example, in 'from X import Y', X is the moduleName and
in 'import A.B', A.B is the moduleName.
symbolName -- The name of the symbol being imported. For
example, in 'from X import Y', Y is the symbolName.
asName -- The name within the module by which symbolName can
be referenced. Usually, this is the same as symbolName, but
by using the 'import X as Y' syntax, the name can be changed.
"""
dbg=0
if symbolName:
#if dbg: print '\nIMPORT SYMBOL %s from MODULE %s' % (symbolName, moduleName)
name_list = self._named_imports.get(moduleName, [])
if symbolName not in name_list:
#if dbg: print '\t*** added'
name_list.append(symbolName)
self._named_imports[moduleName] = name_list
else:
#if dbg: print '\nIMPORT MODULE: %s' % moduleName
if moduleName not in self._straight_imports:
#if dbg: print '\t*** added'
self._straight_imports.append(moduleName)
#if dbg:
# print 'STRAIGHT: ',
# pprint.pprint(self._straight_imports)
# print 'NAMED: ',
# pprint.pprint(self._named_imports)
# print 'CURRENT IMPORTS: ', self.items()
return
def importedSymbols(self, moduleName):
if self._named_imports.has_key(moduleName):
return self._named_imports[moduleName]
else:
raise ValueError('No symbols imported for module', moduleName)
return
def __str__(self):
return '(%s)' % string.join( map(str, self.items()),
'\n'
)
def items(self):
"""Returns a sequence of tuples containing module names and the
symbols imported from them.
"""
all_names = self._straight_imports[:]
for name in self._named_imports.keys():
if name not in all_names:
all_names.append(name)
all_names.sort()
all_items = []
for name in all_names:
if name in self._straight_imports:
all_items.append( (name, None) )
if self._named_imports.has_key(name):
all_items.append( (name, self._named_imports[name]) )
return all_items
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