/usr/share/pyshared/rope/contrib/fixsyntax.py is in python-rope 0.9.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 | import rope.base.codeanalyze
import rope.base.evaluate
from rope.base import worder, exceptions, utils
from rope.base.codeanalyze import ArrayLinesAdapter, LogicalLineFinder
class FixSyntax(object):
def __init__(self, pycore, code, resource, maxfixes=1):
self.pycore = pycore
self.code = code
self.resource = resource
self.maxfixes = maxfixes
@utils.saveit
def get_pymodule(self):
"""Get a `PyModule`"""
errors = []
code = self.code
tries = 0
while True:
try:
if tries == 0 and self.resource is not None and \
self.resource.read() == code:
return self.pycore.resource_to_pyobject(self.resource,
force_errors=True)
return self.pycore.get_string_module(
code, resource=self.resource, force_errors=True)
except exceptions.ModuleSyntaxError, e:
if tries < self.maxfixes:
tries += 1
self.commenter.comment(e.lineno)
code = '\n'.join(self.commenter.lines)
errors.append(' * line %s: %s ... fixed' % (e.lineno,
e.message_))
else:
errors.append(' * line %s: %s ... raised!' % (e.lineno,
e.message_))
new_message = ('\nSyntax errors in file %s:\n' % e.filename) \
+ '\n'.join(errors)
raise exceptions.ModuleSyntaxError(e.filename, e.lineno,
new_message)
@property
@utils.saveit
def commenter(self):
return _Commenter(self.code)
def pyname_at(self, offset):
pymodule = self.get_pymodule()
def old_pyname():
word_finder = worder.Worder(self.code, True)
expression = word_finder.get_primary_at(offset)
expression = expression.replace('\\\n', ' ').replace('\n', ' ')
lineno = self.code.count('\n', 0, offset)
scope = pymodule.get_scope().get_inner_scope_for_line(lineno)
return rope.base.evaluate.eval_str(scope, expression)
new_code = pymodule.source_code
def new_pyname():
newoffset = self.commenter.transfered_offset(offset)
return rope.base.evaluate.eval_location(pymodule, newoffset)
if new_code.startswith(self.code[:offset + 1]):
return new_pyname()
result = old_pyname()
if result is None:
return new_pyname()
return result
class _Commenter(object):
def __init__(self, code):
self.code = code
self.lines = self.code.split('\n')
self.lines.append('\n')
self.origs = range(len(self.lines) + 1)
self.diffs = [0] * (len(self.lines) + 1)
def comment(self, lineno):
start = _logical_start(self.lines, lineno, check_prev=True) - 1
# using self._get_stmt_end() instead of self._get_block_end()
# to lower commented lines
end = self._get_stmt_end(start)
indents = _get_line_indents(self.lines[start])
if 0 < start:
last_lineno = self._last_non_blank(start - 1)
last_line = self.lines[last_lineno]
if last_line.rstrip().endswith(':'):
indents = _get_line_indents(last_line) + 4
self._set(start, ' ' * indents + 'pass')
for line in range(start + 1, end + 1):
self._set(line, self.lines[start])
self._fix_incomplete_try_blocks(lineno, indents)
def transfered_offset(self, offset):
lineno = self.code.count('\n', 0, offset)
diff = sum(self.diffs[:lineno])
return offset + diff
def _last_non_blank(self, start):
while start > 0 and self.lines[start].strip() == '':
start -= 1
return start
def _get_block_end(self, lineno):
end_line = lineno
base_indents = _get_line_indents(self.lines[lineno])
for i in range(lineno + 1, len(self.lines)):
if _get_line_indents(self.lines[i]) >= base_indents:
end_line = i
else:
break
return end_line
def _get_stmt_end(self, lineno):
end_line = lineno
base_indents = _get_line_indents(self.lines[lineno])
for i in range(lineno + 1, len(self.lines)):
if _get_line_indents(self.lines[i]) <= base_indents:
return i - 1
return lineno
def _fix_incomplete_try_blocks(self, lineno, indents):
block_start = lineno
last_indents = current_indents = indents
while block_start > 0:
block_start = rope.base.codeanalyze.get_block_start(
ArrayLinesAdapter(self.lines), block_start) - 1
if self.lines[block_start].strip().startswith('try:'):
indents = _get_line_indents(self.lines[block_start])
if indents > last_indents:
continue
last_indents = indents
block_end = self._find_matching_deindent(block_start)
line = self.lines[block_end].strip()
if not (line.startswith('finally:') or
line.startswith('except ') or
line.startswith('except:')):
self._insert(block_end, ' ' * indents + 'finally:')
self._insert(block_end + 1, ' ' * indents + ' pass')
def _find_matching_deindent(self, line_number):
indents = _get_line_indents(self.lines[line_number])
current_line = line_number + 1
while current_line < len(self.lines):
line = self.lines[current_line]
if not line.strip().startswith('#') and not line.strip() == '':
# HACK: We should have used logical lines here
if _get_line_indents(self.lines[current_line]) <= indents:
return current_line
current_line += 1
return len(self.lines) - 1
def _set(self, lineno, line):
self.diffs[self.origs[lineno]] += len(line) - len(self.lines[lineno])
self.lines[lineno] = line
def _insert(self, lineno, line):
self.diffs[self.origs[lineno]] += len(line) + 1
self.origs.insert(lineno, self.origs[lineno])
self.lines.insert(lineno, line)
def _logical_start(lines, lineno, check_prev=False):
logical_finder = LogicalLineFinder(ArrayLinesAdapter(lines))
if check_prev:
prev = lineno - 1
while prev > 0:
start, end = logical_finder.logical_line_in(prev)
if end is None or start <= lineno < end:
return start
if start <= prev:
break
prev -= 1
return logical_finder.logical_line_in(lineno)[0]
def _get_line_indents(line):
return rope.base.codeanalyze.count_line_indents(line)
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