From 66da122d46337677dd41c5cfe0336b3a883f7d73 Mon Sep 17 00:00:00 2001 From: Rich Trott Date: Fri, 9 Oct 2020 06:00:00 -0700 Subject: [PATCH] tools: refloat 7 Node.js patches to cpplint.py MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cherry-pick 12c8b4d15471cb6211b39c3a2ca5b10fa4b9f12b Original commit message: This commit is a suggestion for adding a rule for NULL usages in the code base. This will currently report a number of errors which could be ignored using // NOLINT (readability/null_usage) PR-URL: https://github.com/nodejs/node/pull/17373 Reviewed-By: Jon Moss Reviewed-By: Anna Henningsen Reviewed-By: Timothy Gu Reviewed-By: Colin Ihrig Reviewed-By: Michael Dawson Reviewed-By: Sakthipriyan Vairamani Reviewed-By: Tobias Nießen Refs: https://github.com/nodejs/node/commit/12c8b4d15471cb6211b39c3a2ca5b10fa4b9f12b Cherry-pick fc81e801913de3e3f3c0c8e26c105f983a74e539 Original commit message: Update cpplint.py to check for inline headers when the corresponding header is already included. PR-URL: https://github.com/nodejs/node/pull/21521 Reviewed-By: Ben Noordhuis Reviewed-By: James M Snell Refs: https://github.com/nodejs/node/commit/fc81e801913de3e3f3c0c8e26c105f983a74e539 Cherry-pick cbc3dd997eb90d629d1b9912b7a5a40eb82343df Original commit message: src, tools: add check for left leaning pointers This commit adds a rule to cpplint to check that pointers in the code base lean to the left and not right, and also fixes the violations reported. PR-URL: https://github.com/nodejs/node/pull/21010 Reviewed-By: Ben Noordhuis Reviewed-By: Anna Henningsen Reviewed-By: Ruben Bridgewater Reviewed-By: James M Snell Refs: https://github.com/nodejs/node/commit/cbc3dd997eb90d629d1b9912b7a5a40eb82343df Cherry-pick 902998190a55d6915b881936f6dd5b6e9cca6ad8 Original commit message: tools: fix cpplint.py header rules THIS COMMIT SHOULD GO WITH THE NEXT. IT WILL FIND NEW LINT. PR-URL: https://github.com/nodejs/node/pull/26306 Reviewed-By: Gireesh Punathil Refs: https://github.com/nodejs/node/commit/902998190a55d6915b881936f6dd5b6e9cca6ad8 Cherry-pick 0a25ace9c35b62ece4d32fd90b326d8063265109 Original commit message: tools: move cpplint configuration to .cpplint PR-URL: https://github.com/nodejs/node/pull/27098 Reviewed-By: Joyee Cheung Reviewed-By: Daniel Bevenius Refs: https://github.com/nodejs/node/commit/0a25ace9c35b62ece4d32fd90b326d8063265109 Cherry-pick afa9a7206c26a29a2af226696c145c924a6d3754 Original commit message: tools: refloat update link to google styleguide for cpplint This commit updates two old links to Google's C++ styleguide which currently result in a 404 when accessed. PR-URL: https://github.com/nodejs/node/pull/30876 Reviewed-By: Michaël Zasso Reviewed-By: David Carlier Reviewed-By: Colin Ihrig Reviewed-By: Richard Lau Reviewed-By: Rich Trott Refs: https://github.com/nodejs/node/commit/afa9a7206c26a29a2af226696c145c924a6d3754 Cherry-pick e23bf8f771aa0bd60e25ff079985fc29b5846403 Original commit message: tools,src: refloat forbid usage of v8::Persistent `v8::Persistent` comes with the surprising catch that it requires manual cleanup. `v8::Global` doesn’t, making it easier to use, and additionally provides move semantics. New code should always use `v8::Global`. PR-URL: https://github.com/nodejs/node/pull/31018 Reviewed-By: Colin Ihrig Reviewed-By: Richard Lau Reviewed-By: James M Snell Reviewed-By: David Carlier Reviewed-By: Rich Trott Reviewed-By: Gus Caplan Reviewed-By: Joyee Cheung Reviewed-By: Ben Noordhuis Reviewed-By: Stephen Belanger PR-URL: https://github.com/nodejs/node/pull/35569 Reviewed-By: Richard Lau Reviewed-By: Daijiro Wachi Reviewed-By: Jiawen Geng PR-URL: https://github.com/nodejs/node/pull/35719 Reviewed-By: Antoine du Hamel --- tools/cpplint.py | 123 ++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 110 insertions(+), 13 deletions(-) diff --git a/tools/cpplint.py b/tools/cpplint.py index 0a74938bfec0c5..1c08ebb982ff78 100755 --- a/tools/cpplint.py +++ b/tools/cpplint.py @@ -280,6 +280,7 @@ 'build/include', 'build/include_subdir', 'build/include_alpha', + 'build/include_inline', 'build/include_order', 'build/include_what_you_use', 'build/namespaces_literals', @@ -294,11 +295,13 @@ 'readability/constructors', 'readability/fn_size', 'readability/inheritance', + 'readability/pointer_notation', 'readability/multiline_comment', 'readability/multiline_string', 'readability/namespace', 'readability/nolint', 'readability/nul', + 'readability/null_usage', 'readability/strings', 'readability/todo', 'readability/utf8', @@ -318,6 +321,7 @@ 'runtime/string', 'runtime/threadsafe_fn', 'runtime/vlog', + 'runtime/v8_persistent', 'whitespace/blank_line', 'whitespace/braces', 'whitespace/comma', @@ -737,6 +741,14 @@ # Match string that indicates we're working on a Linux Kernel file. _SEARCH_KERNEL_FILE = re.compile(r'\b(?:LINT_KERNEL_FILE)') +_NULL_TOKEN_PATTERN = re.compile(r'\bNULL\b') + +_V8_PERSISTENT_PATTERN = re.compile(r'\bv8::Persistent\b') + +_RIGHT_LEANING_POINTER_PATTERN = re.compile(r'[^=|(,\s><);&?:}]' + r'(?= 0 or line.find('*/') >= 0: + return + + for match in _NULL_TOKEN_PATTERN.finditer(line): + error(filename, linenum, 'readability/null_usage', 2, + 'Use nullptr instead of NULL') + +def CheckV8PersistentTokens(filename, clean_lines, linenum, error): + """Check v8::Persistent usage. + + Args: + filename: The name of the current file. + clean_lines: A CleansedLines instance containing the file. + linenum: The number of the line to check. + error: The function to call with any errors found. + """ + line = clean_lines.elided[linenum] + + # Avoid preprocessor lines + if Match(r'^\s*#', line): + return + + if line.find('/*') >= 0 or line.find('*/') >= 0: + return + + for match in _V8_PERSISTENT_PATTERN.finditer(line): + error(filename, linenum, 'runtime/v8_persistent', 2, + 'Use v8::Global instead of v8::Persistent') + +def CheckLeftLeaningPointer(filename, clean_lines, linenum, error): + """Check for left-leaning pointer placement. + + Args: + filename: The name of the current file. + clean_lines: A CleansedLines instance containing the file. + linenum: The number of the line to check. + error: The function to call with any errors found. + """ + line = clean_lines.elided[linenum] + + # Avoid preprocessor lines + if Match(r'^\s*#', line): + return + + if '/*' in line or '*/' in line: + return + + for match in _RIGHT_LEANING_POINTER_PATTERN.finditer(line): + error(filename, linenum, 'readability/pointer_notation', 2, + 'Use left leaning pointer instead of right leaning') def GetLineWidth(line): """Determines the width of the line in column positions. @@ -4789,6 +4882,9 @@ def CheckStyle(filename, clean_lines, linenum, file_extension, nesting_state, CheckSpacingForFunctionCall(filename, clean_lines, linenum, error) CheckCheck(filename, clean_lines, linenum, error) CheckAltTokens(filename, clean_lines, linenum, error) + CheckNullTokens(filename, clean_lines, linenum, error) + CheckV8PersistentTokens(filename, clean_lines, linenum, error) + CheckLeftLeaningPointer(filename, clean_lines, linenum, error) classinfo = nesting_state.InnermostClass() if classinfo: CheckSectionSpacing(filename, clean_lines, classinfo, linenum, error) @@ -4972,11 +5068,10 @@ def CheckIncludeLine(filename, clean_lines, linenum, include_state, error): include_state.include_list[-1].append((include, linenum)) # We want to ensure that headers appear in the right order: - # 1) for foo.cc, foo.h (preferred location) - # 2) c system files - # 3) cpp system files - # 4) for foo.cc, foo.h (deprecated location) - # 5) other google headers + # 1) for foo.cc, foo.h + # 2) other project headers + # 3) c system files + # 4) cpp system files # # We classify each include statement as one of those 5 types # using a number of techniques. The include_state object keeps @@ -5239,7 +5334,7 @@ def CheckLanguage(filename, clean_lines, linenum, file_extension, and line[-1] != '\\'): error(filename, linenum, 'build/namespaces', 4, 'Do not use unnamed namespaces in header files. See ' - 'https://google-styleguide.googlecode.com/svn/trunk/cppguide.xml#Namespaces' + 'https://google.github.io/styleguide/cppguide.html#Namespaces' ' for more information.') @@ -6361,6 +6456,8 @@ def ProcessFileData(filename, file_extension, lines, error, CheckForNewlineAtEOF(filename, lines, error) + CheckInlineHeader(filename, include_state, error) + def ProcessConfigOverrides(filename): """ Loads the configuration files and processes the config overrides. @@ -6379,7 +6476,7 @@ def ProcessConfigOverrides(filename): if not base_name: break # Reached the root directory. - cfg_file = os.path.join(abs_path, "CPPLINT.cfg") + cfg_file = os.path.join(abs_path, ".cpplint") abs_filename = abs_path if not os.path.isfile(cfg_file): continue