cpython/Lib/lib2to3/fixes/fix_throw.py

57 lines
1.5 KiB
Python
Raw Normal View History

"""Fixer for generator.throw(E, V, T).
g.throw(E) -> g.throw(E)
g.throw(E, V) -> g.throw(E(V))
g.throw(E, V, T) -> g.throw(E(V).with_traceback(T))
g.throw("foo"[, V[, T]]) will warn about string exceptions."""
# Author: Collin Winter
# Local imports
from .. import pytree
from ..pgen2 import token
Merged revisions 64286 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ................ r64286 | benjamin.peterson | 2008-06-14 21:31:05 -0500 (Sat, 14 Jun 2008) | 49 lines Merged revisions 63661,63666,63695,63711,63729,63769,63790,63880,63886 via svnmerge from svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3 ........ r63661 | georg.brandl | 2008-05-26 05:26:20 -0500 (Mon, 26 May 2008) | 2 lines Add import fixes for dbm package. ........ r63666 | georg.brandl | 2008-05-26 05:49:09 -0500 (Mon, 26 May 2008) | 2 lines Add xmlrpc package fixes. ........ r63695 | georg.brandl | 2008-05-26 10:14:33 -0500 (Mon, 26 May 2008) | 2 lines Add fixer entries for http package. ........ r63711 | benjamin.peterson | 2008-05-26 13:43:51 -0500 (Mon, 26 May 2008) | 2 lines add import mapping for test.test_support -> test.support ........ r63729 | benjamin.peterson | 2008-05-26 16:31:03 -0500 (Mon, 26 May 2008) | 2 lines mapping for commands module -> subprocess ........ r63769 | brett.cannon | 2008-05-29 00:13:13 -0500 (Thu, 29 May 2008) | 1 line Fixer for UserString.UserString over to the collections module. ........ r63790 | brett.cannon | 2008-05-29 14:13:51 -0500 (Thu, 29 May 2008) | 4 lines Add a fixer for UserList. Closes issue #2878. Thanks to Quentin Gallet-Gilles for the patch. ........ r63880 | collin.winter | 2008-06-01 18:09:38 -0500 (Sun, 01 Jun 2008) | 6 lines Move lib2to3/fixes/{basefix,util}.py down to lib2to3/. This is step 1 of turning lib2to3/ into a general-purpose refactoring library, reusable by other projects. ........ r63886 | collin.winter | 2008-06-01 22:15:01 -0500 (Sun, 01 Jun 2008) | 5 lines Allow refactoring tools to specify a directory for fixer modules. This is step 2 of turning lib2to3/ into a general-purpose refactoring library, reusable by other projects. Step 1: r63880. ........ ................
2008-06-14 23:57:40 -03:00
from .. import fixer_base
from ..fixer_util import Name, Call, ArgList, Attr, is_tuple
Merged revisions 64286 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ................ r64286 | benjamin.peterson | 2008-06-14 21:31:05 -0500 (Sat, 14 Jun 2008) | 49 lines Merged revisions 63661,63666,63695,63711,63729,63769,63790,63880,63886 via svnmerge from svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3 ........ r63661 | georg.brandl | 2008-05-26 05:26:20 -0500 (Mon, 26 May 2008) | 2 lines Add import fixes for dbm package. ........ r63666 | georg.brandl | 2008-05-26 05:49:09 -0500 (Mon, 26 May 2008) | 2 lines Add xmlrpc package fixes. ........ r63695 | georg.brandl | 2008-05-26 10:14:33 -0500 (Mon, 26 May 2008) | 2 lines Add fixer entries for http package. ........ r63711 | benjamin.peterson | 2008-05-26 13:43:51 -0500 (Mon, 26 May 2008) | 2 lines add import mapping for test.test_support -> test.support ........ r63729 | benjamin.peterson | 2008-05-26 16:31:03 -0500 (Mon, 26 May 2008) | 2 lines mapping for commands module -> subprocess ........ r63769 | brett.cannon | 2008-05-29 00:13:13 -0500 (Thu, 29 May 2008) | 1 line Fixer for UserString.UserString over to the collections module. ........ r63790 | brett.cannon | 2008-05-29 14:13:51 -0500 (Thu, 29 May 2008) | 4 lines Add a fixer for UserList. Closes issue #2878. Thanks to Quentin Gallet-Gilles for the patch. ........ r63880 | collin.winter | 2008-06-01 18:09:38 -0500 (Sun, 01 Jun 2008) | 6 lines Move lib2to3/fixes/{basefix,util}.py down to lib2to3/. This is step 1 of turning lib2to3/ into a general-purpose refactoring library, reusable by other projects. ........ r63886 | collin.winter | 2008-06-01 22:15:01 -0500 (Sun, 01 Jun 2008) | 5 lines Allow refactoring tools to specify a directory for fixer modules. This is step 2 of turning lib2to3/ into a general-purpose refactoring library, reusable by other projects. Step 1: r63880. ........ ................
2008-06-14 23:57:40 -03:00
class FixThrow(fixer_base.BaseFix):
PATTERN = """
power< any trailer< '.' 'throw' >
trailer< '(' args=arglist< exc=any ',' val=any [',' tb=any] > ')' >
>
|
power< any trailer< '.' 'throw' > trailer< '(' exc=any ')' > >
"""
def transform(self, node, results):
syms = self.syms
exc = results["exc"].clone()
if exc.type is token.STRING:
self.cannot_convert(node, "Python 3 does not support string exceptions")
return
# Leave "g.throw(E)" alone
val = results.get("val")
if val is None:
return
val = val.clone()
if is_tuple(val):
args = [c.clone() for c in val.children[1:-1]]
else:
Merged revisions 73370 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ................ r73370 | benjamin.peterson | 2009-06-11 17:06:46 -0500 (Thu, 11 Jun 2009) | 105 lines Merged revisions 72523,72950-72951,72994,73003,73033,73036-73040,73091-73093,73096,73179-73181,73192,73231,73244,73255-73256,73365 via svnmerge from svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3 ........ r72523 | benjamin.peterson | 2009-05-09 14:42:26 -0500 (Sat, 09 May 2009) | 1 line remove parenthesis ........ r72950 | benjamin.peterson | 2009-05-26 18:19:45 -0500 (Tue, 26 May 2009) | 1 line remove unused imports ........ r72951 | benjamin.peterson | 2009-05-26 18:27:00 -0500 (Tue, 26 May 2009) | 1 line this is no longer executable ........ r72994 | benjamin.peterson | 2009-05-28 15:32:54 -0500 (Thu, 28 May 2009) | 1 line fix test_all_fixers on Windows #6134 ........ r73003 | benjamin.peterson | 2009-05-28 21:57:28 -0500 (Thu, 28 May 2009) | 4 lines make 2to3 test utilities easier to use with other applications (3to2) Patch by Joe Amenta ........ r73033 | benjamin.peterson | 2009-05-29 16:58:32 -0500 (Fri, 29 May 2009) | 1 line update grammar for multi with statement ........ r73036 | benjamin.peterson | 2009-05-29 17:33:20 -0500 (Fri, 29 May 2009) | 1 line simplify fix_unicode ........ r73037 | benjamin.peterson | 2009-05-29 17:53:03 -0500 (Fri, 29 May 2009) | 1 line add custom error for pattern syntax errors ........ r73038 | benjamin.peterson | 2009-05-29 17:55:00 -0500 (Fri, 29 May 2009) | 1 line complain if details are attached to a token ........ r73039 | benjamin.peterson | 2009-05-29 18:00:28 -0500 (Fri, 29 May 2009) | 1 line add a test for whitespace ........ r73040 | benjamin.peterson | 2009-05-29 18:01:17 -0500 (Fri, 29 May 2009) | 1 line a fix for emacs highlighting ........ r73091 | benjamin.peterson | 2009-05-31 20:55:25 -0500 (Sun, 31 May 2009) | 1 line deprecate set_prefix() and get_prefix() in favor of a prefix property ........ r73092 | benjamin.peterson | 2009-05-31 21:00:51 -0500 (Sun, 31 May 2009) | 1 line change hideous java naming scheme ........ r73093 | benjamin.peterson | 2009-05-31 21:01:39 -0500 (Sun, 31 May 2009) | 1 line remove dated comment ........ r73096 | benjamin.peterson | 2009-05-31 21:40:53 -0500 (Sun, 31 May 2009) | 1 line group tests ........ r73179 | benjamin.peterson | 2009-06-03 13:09:53 -0500 (Wed, 03 Jun 2009) | 1 line handle the case where there's multiple trailers #6185 ........ r73180 | benjamin.peterson | 2009-06-03 13:18:05 -0500 (Wed, 03 Jun 2009) | 1 line scrap __main__ section ........ r73181 | benjamin.peterson | 2009-06-03 13:24:48 -0500 (Wed, 03 Jun 2009) | 1 line remove shebang lines and __main__ sections ........ r73192 | benjamin.peterson | 2009-06-03 19:16:30 -0500 (Wed, 03 Jun 2009) | 4 lines actually test something here Thanks to Joe Amenta for noticing.y ........ r73231 | benjamin.peterson | 2009-06-04 13:38:50 -0500 (Thu, 04 Jun 2009) | 1 line remove unused variable ........ r73244 | benjamin.peterson | 2009-06-05 08:39:25 -0500 (Fri, 05 Jun 2009) | 1 line allow fixers to give different options in setUp ........ r73255 | benjamin.peterson | 2009-06-06 11:23:46 -0500 (Sat, 06 Jun 2009) | 1 line fix the except fixer on one line suites #6222 ........ r73256 | benjamin.peterson | 2009-06-06 11:27:40 -0500 (Sat, 06 Jun 2009) | 1 line test one-line else and finally clauses ........ r73365 | benjamin.peterson | 2009-06-11 17:01:32 -0500 (Thu, 11 Jun 2009) | 1 line normalize whitespace ........ ................
2009-06-11 20:47:38 -03:00
val.prefix = ""
args = [val]
throw_args = results["args"]
if "tb" in results:
tb = results["tb"].clone()
Merged revisions 73370 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ................ r73370 | benjamin.peterson | 2009-06-11 17:06:46 -0500 (Thu, 11 Jun 2009) | 105 lines Merged revisions 72523,72950-72951,72994,73003,73033,73036-73040,73091-73093,73096,73179-73181,73192,73231,73244,73255-73256,73365 via svnmerge from svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3 ........ r72523 | benjamin.peterson | 2009-05-09 14:42:26 -0500 (Sat, 09 May 2009) | 1 line remove parenthesis ........ r72950 | benjamin.peterson | 2009-05-26 18:19:45 -0500 (Tue, 26 May 2009) | 1 line remove unused imports ........ r72951 | benjamin.peterson | 2009-05-26 18:27:00 -0500 (Tue, 26 May 2009) | 1 line this is no longer executable ........ r72994 | benjamin.peterson | 2009-05-28 15:32:54 -0500 (Thu, 28 May 2009) | 1 line fix test_all_fixers on Windows #6134 ........ r73003 | benjamin.peterson | 2009-05-28 21:57:28 -0500 (Thu, 28 May 2009) | 4 lines make 2to3 test utilities easier to use with other applications (3to2) Patch by Joe Amenta ........ r73033 | benjamin.peterson | 2009-05-29 16:58:32 -0500 (Fri, 29 May 2009) | 1 line update grammar for multi with statement ........ r73036 | benjamin.peterson | 2009-05-29 17:33:20 -0500 (Fri, 29 May 2009) | 1 line simplify fix_unicode ........ r73037 | benjamin.peterson | 2009-05-29 17:53:03 -0500 (Fri, 29 May 2009) | 1 line add custom error for pattern syntax errors ........ r73038 | benjamin.peterson | 2009-05-29 17:55:00 -0500 (Fri, 29 May 2009) | 1 line complain if details are attached to a token ........ r73039 | benjamin.peterson | 2009-05-29 18:00:28 -0500 (Fri, 29 May 2009) | 1 line add a test for whitespace ........ r73040 | benjamin.peterson | 2009-05-29 18:01:17 -0500 (Fri, 29 May 2009) | 1 line a fix for emacs highlighting ........ r73091 | benjamin.peterson | 2009-05-31 20:55:25 -0500 (Sun, 31 May 2009) | 1 line deprecate set_prefix() and get_prefix() in favor of a prefix property ........ r73092 | benjamin.peterson | 2009-05-31 21:00:51 -0500 (Sun, 31 May 2009) | 1 line change hideous java naming scheme ........ r73093 | benjamin.peterson | 2009-05-31 21:01:39 -0500 (Sun, 31 May 2009) | 1 line remove dated comment ........ r73096 | benjamin.peterson | 2009-05-31 21:40:53 -0500 (Sun, 31 May 2009) | 1 line group tests ........ r73179 | benjamin.peterson | 2009-06-03 13:09:53 -0500 (Wed, 03 Jun 2009) | 1 line handle the case where there's multiple trailers #6185 ........ r73180 | benjamin.peterson | 2009-06-03 13:18:05 -0500 (Wed, 03 Jun 2009) | 1 line scrap __main__ section ........ r73181 | benjamin.peterson | 2009-06-03 13:24:48 -0500 (Wed, 03 Jun 2009) | 1 line remove shebang lines and __main__ sections ........ r73192 | benjamin.peterson | 2009-06-03 19:16:30 -0500 (Wed, 03 Jun 2009) | 4 lines actually test something here Thanks to Joe Amenta for noticing.y ........ r73231 | benjamin.peterson | 2009-06-04 13:38:50 -0500 (Thu, 04 Jun 2009) | 1 line remove unused variable ........ r73244 | benjamin.peterson | 2009-06-05 08:39:25 -0500 (Fri, 05 Jun 2009) | 1 line allow fixers to give different options in setUp ........ r73255 | benjamin.peterson | 2009-06-06 11:23:46 -0500 (Sat, 06 Jun 2009) | 1 line fix the except fixer on one line suites #6222 ........ r73256 | benjamin.peterson | 2009-06-06 11:27:40 -0500 (Sat, 06 Jun 2009) | 1 line test one-line else and finally clauses ........ r73365 | benjamin.peterson | 2009-06-11 17:01:32 -0500 (Thu, 11 Jun 2009) | 1 line normalize whitespace ........ ................
2009-06-11 20:47:38 -03:00
tb.prefix = ""
e = Call(exc, args)
with_tb = Attr(e, Name('with_traceback')) + [ArgList([tb])]
throw_args.replace(pytree.Node(syms.power, with_tb))
else:
throw_args.replace(Call(exc, args))