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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 ........
56 lines
1.5 KiB
Python
56 lines
1.5 KiB
Python
"""Fixer for generator.throw(E, V, T).
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g.throw(E) -> g.throw(E)
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g.throw(E, V) -> g.throw(E(V))
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g.throw(E, V, T) -> g.throw(E(V).with_traceback(T))
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g.throw("foo"[, V[, T]]) will warn about string exceptions."""
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# Author: Collin Winter
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# Local imports
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from .. import pytree
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from ..pgen2 import token
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from .. import fixer_base
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from ..fixer_util import Name, Call, ArgList, Attr, is_tuple
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class FixThrow(fixer_base.BaseFix):
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BM_compatible = True
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PATTERN = """
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power< any trailer< '.' 'throw' >
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trailer< '(' args=arglist< exc=any ',' val=any [',' tb=any] > ')' >
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>
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power< any trailer< '.' 'throw' > trailer< '(' exc=any ')' > >
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"""
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def transform(self, node, results):
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syms = self.syms
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exc = results["exc"].clone()
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if exc.type is token.STRING:
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self.cannot_convert(node, "Python 3 does not support string exceptions")
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return
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# Leave "g.throw(E)" alone
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val = results.get("val")
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if val is None:
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return
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val = val.clone()
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if is_tuple(val):
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args = [c.clone() for c in val.children[1:-1]]
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else:
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val.prefix = ""
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args = [val]
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throw_args = results["args"]
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if "tb" in results:
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tb = results["tb"].clone()
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tb.prefix = ""
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e = Call(exc, args)
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with_tb = Attr(e, Name('with_traceback')) + [ArgList([tb])]
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throw_args.replace(pytree.Node(syms.power, with_tb))
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else:
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throw_args.replace(Call(exc, args))
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