Mercurial > repos > shellac > guppy_basecaller
comparison env/lib/python3.7/site-packages/libpasteurize/fixes/fix_raise.py @ 2:6af9afd405e9 draft
"planemo upload commit 0a63dd5f4d38a1f6944587f52a8cd79874177fc1"
| author | shellac |
|---|---|
| date | Thu, 14 May 2020 14:56:58 -0400 |
| parents | 26e78fe6e8c4 |
| children |
comparison
equal
deleted
inserted
replaced
| 1:75ca89e9b81c | 2:6af9afd405e9 |
|---|---|
| 1 u"""Fixer for 'raise E(V).with_traceback(T)' -> 'raise E, V, T'""" | |
| 2 | |
| 3 from lib2to3 import fixer_base | |
| 4 from lib2to3.fixer_util import Comma, Node, Leaf, token, syms | |
| 5 | |
| 6 class FixRaise(fixer_base.BaseFix): | |
| 7 | |
| 8 PATTERN = u""" | |
| 9 raise_stmt< 'raise' (power< name=any [trailer< '(' val=any* ')' >] | |
| 10 [trailer< '.' 'with_traceback' > trailer< '(' trc=any ')' >] > | any) ['from' chain=any] >""" | |
| 11 | |
| 12 def transform(self, node, results): | |
| 13 name, val, trc = (results.get(u"name"), results.get(u"val"), results.get(u"trc")) | |
| 14 chain = results.get(u"chain") | |
| 15 if chain is not None: | |
| 16 self.warning(node, u"explicit exception chaining is not supported in Python 2") | |
| 17 chain.prev_sibling.remove() | |
| 18 chain.remove() | |
| 19 if trc is not None: | |
| 20 val = val[0] if val else Leaf(token.NAME, u"None") | |
| 21 val.prefix = trc.prefix = u" " | |
| 22 kids = [Leaf(token.NAME, u"raise"), name.clone(), Comma(), | |
| 23 val.clone(), Comma(), trc.clone()] | |
| 24 raise_stmt = Node(syms.raise_stmt, kids) | |
| 25 node.replace(raise_stmt) |