Check for non-const references. Separate from CheckLanguage since it scans backwards from current line, instead of scanning forward. Args: filename: The name of the current file. clean_lines: A CleansedLines instance containing the file. linenum: The number of the lin
(filename, clean_lines, linenum, nesting_state, error)
| 6310 | |
| 6311 | |
| 6312 | def CheckForNonConstReference(filename, clean_lines, linenum, nesting_state, error): |
| 6313 | """Check for non-const references. |
| 6314 | |
| 6315 | Separate from CheckLanguage since it scans backwards from current |
| 6316 | line, instead of scanning forward. |
| 6317 | |
| 6318 | Args: |
| 6319 | filename: The name of the current file. |
| 6320 | clean_lines: A CleansedLines instance containing the file. |
| 6321 | linenum: The number of the line to check. |
| 6322 | nesting_state: A NestingState instance which maintains information about |
| 6323 | the current stack of nested blocks being parsed. |
| 6324 | error: The function to call with any errors found. |
| 6325 | """ |
| 6326 | # Do nothing if there is no '&' on current line. |
| 6327 | line = clean_lines.elided[linenum] |
| 6328 | if "&" not in line: |
| 6329 | return |
| 6330 | |
| 6331 | # If a function is inherited, current function doesn't have much of |
| 6332 | # a choice, so any non-const references should not be blamed on |
| 6333 | # derived function. |
| 6334 | if IsDerivedFunction(clean_lines, linenum): |
| 6335 | return |
| 6336 | |
| 6337 | # Don't warn on out-of-line method definitions, as we would warn on the |
| 6338 | # in-line declaration, if it isn't marked with 'override'. |
| 6339 | if IsOutOfLineMethodDefinition(clean_lines, linenum): |
| 6340 | return |
| 6341 | |
| 6342 | # Long type names may be broken across multiple lines, usually in one |
| 6343 | # of these forms: |
| 6344 | # LongType |
| 6345 | # ::LongTypeContinued &identifier |
| 6346 | # LongType:: |
| 6347 | # LongTypeContinued &identifier |
| 6348 | # LongType< |
| 6349 | # ...>::LongTypeContinued &identifier |
| 6350 | # |
| 6351 | # If we detected a type split across two lines, join the previous |
| 6352 | # line to current line so that we can match const references |
| 6353 | # accordingly. |
| 6354 | # |
| 6355 | # Note that this only scans back one line, since scanning back |
| 6356 | # arbitrary number of lines would be expensive. If you have a type |
| 6357 | # that spans more than 2 lines, please use a typedef. |
| 6358 | if linenum > 1: |
| 6359 | previous = None |
| 6360 | if re.match(r"\s*::(?:[\w<>]|::)+\s*&\s*\S", line): |
| 6361 | # previous_line\n + ::current_line |
| 6362 | previous = re.search( |
| 6363 | r"\b((?:const\s*)?(?:[\w<>]|::)+[\w<>])\s*$", clean_lines.elided[linenum - 1] |
| 6364 | ) |
| 6365 | elif re.match(r"\s*[a-zA-Z_]([\w<>]|::)+\s*&\s*\S", line): |
| 6366 | # previous_line::\n + current_line |
| 6367 | previous = re.search( |
| 6368 | r"\b((?:const\s*)?(?:[\w<>]|::)+::)\s*$", clean_lines.elided[linenum - 1] |
| 6369 | ) |
no test coverage detected