jinx/python-uncompyle6
1
Fork 0
mirror of https://github.com/rocky/python-uncompyle6.git synced 2025-08-04 09:22:40 +08:00
Code Issues Packages Projects Releases Wiki Activity

Disable "continue" removal in pysource.py

Browse Source 
"continue" could be the only statement and then removing it
might lead to a dangling "else".
This commit is contained in:
rocky
2017-06-08 04:35:06 -04:00
parent 7b2217fda4
commit e9588e56e2
1 changed files with 26 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
uncompyle6/semantics/pysource.py
View File

@@ -571,25 +571,32 @@ class SourceWalker(GenericASTTraversal, object):
node == AST('return_stmt',
[AST('ret_expr', [NONE]), Token('RETURN_VALUE')]))
def n_continue_stmt(self, node):
if self.version >= 3.0 and node[0] == 'CONTINUE':
t = node[0]
if not t.linestart:
# Artificially-added "continue" statements derived from JUMP_ABSOLUTE
# don't have line numbers associated with them.
# If this is a CONTINUE is to the same target as a JUMP_ABSOLUTE following it,
# then the "continue" can be suppressed.
op, offset = t.op, t.offset
next_offset = self.scanner.next_offset(op, offset)
scanner = self.scanner
code = scanner.code
if next_offset < len(code):
next_inst = code[next_offset]
if (scanner.opc.opname[next_inst] == 'JUMP_ABSOLUTE'
and t.pattr == code[next_offset+1]):
# Suppress "continue"
self.prune()
self.default(node)
## The below doesn't work because continue may be the only thing inside an 'else'. For example
# for ...
# if ...
# else:
# continue
#
# def n_continue_stmt(self, node):
# if self.version >= 3.0 and node[0] == 'CONTINUE':
# t = node[0]
# if not t.linestart:
# # Artificially-added "continue" statements derived from JUMP_ABSOLUTE
# # don't have line numbers associated with them.
# # If this is a CONTINUE is to the same target as a JUMP_ABSOLUTE following it,
# # then the "continue" can be suppressed.
# op, offset = t.op, t.offset
# next_offset = self.scanner.next_offset(op, offset)
# scanner = self.scanner
# code = scanner.code
# if next_offset < len(code):
# next_inst = code[next_offset]
# if (scanner.opc.opname[next_inst] == 'JUMP_ABSOLUTE'
# and t.pattr == code[next_offset+1]):
# # Suppress "continue"
# import pdb; pdb.set_trace()
# self.prune()
# self.default(node)
def n_return_stmt(self, node):
if self.params['isLambda']: