mirror of
https://github.com/python/cpython.git
synced 2025-11-03 23:21:29 +00:00
97 lines
3.3 KiB
Python
97 lines
3.3 KiB
Python
"""Fixer for operator functions.
|
|
|
|
operator.isCallable(obj) -> callable(obj)
|
|
operator.sequenceIncludes(obj) -> operator.contains(obj)
|
|
operator.isSequenceType(obj) -> isinstance(obj, collections.abc.Sequence)
|
|
operator.isMappingType(obj) -> isinstance(obj, collections.abc.Mapping)
|
|
operator.isNumberType(obj) -> isinstance(obj, numbers.Number)
|
|
operator.repeat(obj, n) -> operator.mul(obj, n)
|
|
operator.irepeat(obj, n) -> operator.imul(obj, n)
|
|
"""
|
|
|
|
import collections.abc
|
|
|
|
# Local imports
|
|
from lib2to3 import fixer_base
|
|
from lib2to3.fixer_util import Call, Name, String, touch_import
|
|
|
|
|
|
def invocation(s):
|
|
def dec(f):
|
|
f.invocation = s
|
|
return f
|
|
return dec
|
|
|
|
|
|
class FixOperator(fixer_base.BaseFix):
|
|
BM_compatible = True
|
|
order = "pre"
|
|
|
|
methods = """
|
|
method=('isCallable'|'sequenceIncludes'
|
|
|'isSequenceType'|'isMappingType'|'isNumberType'
|
|
|'repeat'|'irepeat')
|
|
"""
|
|
obj = "'(' obj=any ')'"
|
|
PATTERN = """
|
|
power< module='operator'
|
|
trailer< '.' %(methods)s > trailer< %(obj)s > >
|
|
|
|
|
power< %(methods)s trailer< %(obj)s > >
|
|
""" % dict(methods=methods, obj=obj)
|
|
|
|
def transform(self, node, results):
|
|
method = self._check_method(node, results)
|
|
if method is not None:
|
|
return method(node, results)
|
|
|
|
@invocation("operator.contains(%s)")
|
|
def _sequenceIncludes(self, node, results):
|
|
return self._handle_rename(node, results, "contains")
|
|
|
|
@invocation("callable(%s)")
|
|
def _isCallable(self, node, results):
|
|
obj = results["obj"]
|
|
return Call(Name("callable"), [obj.clone()], prefix=node.prefix)
|
|
|
|
@invocation("operator.mul(%s)")
|
|
def _repeat(self, node, results):
|
|
return self._handle_rename(node, results, "mul")
|
|
|
|
@invocation("operator.imul(%s)")
|
|
def _irepeat(self, node, results):
|
|
return self._handle_rename(node, results, "imul")
|
|
|
|
@invocation("isinstance(%s, collections.abc.Sequence)")
|
|
def _isSequenceType(self, node, results):
|
|
return self._handle_type2abc(node, results, "collections.abc", "Sequence")
|
|
|
|
@invocation("isinstance(%s, collections.abc.Mapping)")
|
|
def _isMappingType(self, node, results):
|
|
return self._handle_type2abc(node, results, "collections.abc", "Mapping")
|
|
|
|
@invocation("isinstance(%s, numbers.Number)")
|
|
def _isNumberType(self, node, results):
|
|
return self._handle_type2abc(node, results, "numbers", "Number")
|
|
|
|
def _handle_rename(self, node, results, name):
|
|
method = results["method"][0]
|
|
method.value = name
|
|
method.changed()
|
|
|
|
def _handle_type2abc(self, node, results, module, abc):
|
|
touch_import(None, module, node)
|
|
obj = results["obj"]
|
|
args = [obj.clone(), String(", " + ".".join([module, abc]))]
|
|
return Call(Name("isinstance"), args, prefix=node.prefix)
|
|
|
|
def _check_method(self, node, results):
|
|
method = getattr(self, "_" + results["method"][0].value)
|
|
if isinstance(method, collections.abc.Callable):
|
|
if "module" in results:
|
|
return method
|
|
else:
|
|
sub = (str(results["obj"]),)
|
|
invocation_str = method.invocation % sub
|
|
self.warning(node, "You should use '%s' here." % invocation_str)
|
|
return None
|