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svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3 ........ r83852 | benjamin.peterson | 2010-08-08 15:45:44 -0500 (Sun, 08 Aug 2010) | 1 line wrap with parens ........ r83853 | benjamin.peterson | 2010-08-08 15:46:31 -0500 (Sun, 08 Aug 2010) | 1 line use parens ........ r83857 | benjamin.peterson | 2010-08-08 15:59:49 -0500 (Sun, 08 Aug 2010) | 1 line things which use touch_import should be pre order ........ r84042 | george.boutsioukis | 2010-08-14 16:10:19 -0500 (Sat, 14 Aug 2010) | 2 lines This revision incorporates into the 2to3 tool the new, faster, tree matching algorithm developed during a GSOC project. The algorithm resides in the two added modules, btm_matcher and btm_utils. New code has been added to drive the new matching process in refactor.py and a few minor changes were made in other modules. A BM_compatible flag(False by default) has been added in fixer_base and it is set to True in most of the current fixers. ........ r84216 | benjamin.peterson | 2010-08-19 16:44:05 -0500 (Thu, 19 Aug 2010) | 1 line allow star_expr in testlist_gexp ........ r84274 | benjamin.peterson | 2010-08-22 18:40:46 -0500 (Sun, 22 Aug 2010) | 1 line wrap long line ........ r84275 | benjamin.peterson | 2010-08-22 18:42:22 -0500 (Sun, 22 Aug 2010) | 1 line cleanup ........ r84276 | benjamin.peterson | 2010-08-22 18:51:01 -0500 (Sun, 22 Aug 2010) | 1 line when there's a None value and a traceback, don't call type with it #9661 ........ r84375 | george.boutsioukis | 2010-08-31 08:38:53 -0500 (Tue, 31 Aug 2010) | 3 lines Idiomatic code changes & stylistic issues fixed in the BottomMatcher module. Thanks to Benjamin Peterson for taking the time to review the code. ........ r85388 | benjamin.peterson | 2010-10-12 17:27:44 -0500 (Tue, 12 Oct 2010) | 1 line fix urllib fixer with multiple as imports on a line #10069 ........ r85478 | benjamin.peterson | 2010-10-14 08:09:56 -0500 (Thu, 14 Oct 2010) | 1 line stop abusing docstrings ........ r85506 | benjamin.peterson | 2010-10-14 17:45:19 -0500 (Thu, 14 Oct 2010) | 1 line kill sibling import ........ r85507 | benjamin.peterson | 2010-10-14 17:54:15 -0500 (Thu, 14 Oct 2010) | 1 line remove trailing whitespace ........ r85508 | benjamin.peterson | 2010-10-14 17:55:28 -0500 (Thu, 14 Oct 2010) | 1 line typo ........
98 lines
3.4 KiB
Python
98 lines
3.4 KiB
Python
"""Fixer for operator functions.
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operator.isCallable(obj) -> hasattr(obj, '__call__')
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operator.sequenceIncludes(obj) -> operator.contains(obj)
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operator.isSequenceType(obj) -> isinstance(obj, collections.Sequence)
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operator.isMappingType(obj) -> isinstance(obj, collections.Mapping)
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operator.isNumberType(obj) -> isinstance(obj, numbers.Number)
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operator.repeat(obj, n) -> operator.mul(obj, n)
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operator.irepeat(obj, n) -> operator.imul(obj, n)
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"""
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import collections
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# Local imports
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from lib2to3 import fixer_base
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from lib2to3.fixer_util import Call, Name, String, touch_import
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def invocation(s):
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def dec(f):
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f.invocation = s
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return f
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return dec
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class FixOperator(fixer_base.BaseFix):
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BM_compatible = True
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order = "pre"
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methods = """
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method=('isCallable'|'sequenceIncludes'
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|'isSequenceType'|'isMappingType'|'isNumberType'
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|'repeat'|'irepeat')
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"""
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obj = "'(' obj=any ')'"
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PATTERN = """
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power< module='operator'
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trailer< '.' %(methods)s > trailer< %(obj)s > >
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power< %(methods)s trailer< %(obj)s > >
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""" % dict(methods=methods, obj=obj)
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def transform(self, node, results):
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method = self._check_method(node, results)
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if method is not None:
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return method(node, results)
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@invocation("operator.contains(%s)")
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def _sequenceIncludes(self, node, results):
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return self._handle_rename(node, results, "contains")
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@invocation("hasattr(%s, '__call__')")
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def _isCallable(self, node, results):
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obj = results["obj"]
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args = [obj.clone(), String(", "), String("'__call__'")]
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return Call(Name("hasattr"), args, prefix=node.prefix)
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@invocation("operator.mul(%s)")
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def _repeat(self, node, results):
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return self._handle_rename(node, results, "mul")
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@invocation("operator.imul(%s)")
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def _irepeat(self, node, results):
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return self._handle_rename(node, results, "imul")
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@invocation("isinstance(%s, collections.Sequence)")
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def _isSequenceType(self, node, results):
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return self._handle_type2abc(node, results, "collections", "Sequence")
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@invocation("isinstance(%s, collections.Mapping)")
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def _isMappingType(self, node, results):
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return self._handle_type2abc(node, results, "collections", "Mapping")
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@invocation("isinstance(%s, numbers.Number)")
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def _isNumberType(self, node, results):
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return self._handle_type2abc(node, results, "numbers", "Number")
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def _handle_rename(self, node, results, name):
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method = results["method"][0]
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method.value = name
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method.changed()
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def _handle_type2abc(self, node, results, module, abc):
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touch_import(None, module, node)
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obj = results["obj"]
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args = [obj.clone(), String(", " + ".".join([module, abc]))]
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return Call(Name("isinstance"), args, prefix=node.prefix)
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def _check_method(self, node, results):
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method = getattr(self, "_" + results["method"][0].value)
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if isinstance(method, collections.Callable):
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if "module" in results:
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return method
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else:
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sub = (str(results["obj"]),)
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invocation_str = method.invocation % sub
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self.warning(node, "You should use '%s' here." % invocation_str)
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return None
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