hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
# Copyright 2006 Georg Brandl.
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# Licensed to PSF under a Contributor Agreement.
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"""Fixer for intern().
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intern(s) -> sys.intern(s)"""
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# Local imports
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from .. import pytree
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from .. import fixer_base
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from ..fixer_util import Name, Attr, touch_import
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class FixIntern(fixer_base.BaseFix):
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BM_compatible = True
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order = "pre"
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PATTERN = """
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power< 'intern'
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trailer< lpar='('
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( not(arglist | argument<any '=' any>) obj=any
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| obj=arglist<(not argument<any '=' any>) any ','> )
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rpar=')' >
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after=any*
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>
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"""
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def transform(self, node, results):
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if results:
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# I feel like we should be able to express this logic in the
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# PATTERN above but I don't know how to do it so...
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obj = results['obj']
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if obj:
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if obj.type == self.syms.star_expr:
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return # Make no change.
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if (obj.type == self.syms.argument and
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obj.children[0].value == '**'):
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return # Make no change.
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syms = self.syms
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obj = results["obj"].clone()
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if obj.type == syms.arglist:
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newarglist = obj.clone()
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else:
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newarglist = pytree.Node(syms.arglist, [obj.clone()])
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after = results["after"]
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if after:
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after = [n.clone() for n in after]
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new = pytree.Node(syms.power,
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Attr(Name(u"sys"), Name(u"intern")) +
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[pytree.Node(syms.trailer,
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[results["lpar"].clone(),
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newarglist,
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results["rpar"].clone()])] + after)
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new.prefix = node.prefix
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touch_import(None, u'sys', node)
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return new
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