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Add extension mechanisms for custom checks to cpplint.py.
This allows users of cpplint.py to specify additional check functions. Will be used by: http://codereview.chromium.org/7834045/ Review URL: http://codereview.appspot.com/4950069 Patch from Alexei Svitkine <asvitkine@chromium.org>.
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cpplint/cpplint.py
vendored
28
cpplint/cpplint.py
vendored
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@ -2918,7 +2918,7 @@ def CheckForIncludeWhatYouUse(filename, clean_lines, include_state, error,
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def ProcessLine(filename, file_extension,
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clean_lines, line, include_state, function_state,
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class_state, error):
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class_state, error, extra_check_functions=[]):
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"""Processes a single line in the file.
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Args:
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@ -2933,7 +2933,9 @@ def ProcessLine(filename, file_extension,
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the current stack of nested class declarations being parsed.
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error: A callable to which errors are reported, which takes 4 arguments:
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filename, line number, error level, and message
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extra_check_functions: An array of additional check functions that will be
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run on each source line. Each function takes 4
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arguments: filename, clean_lines, line, error
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"""
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raw_lines = clean_lines.raw_lines
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ParseNolintSuppressions(filename, raw_lines[line], line, error)
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@ -2946,9 +2948,11 @@ def ProcessLine(filename, file_extension,
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class_state, error)
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CheckPosixThreading(filename, clean_lines, line, error)
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CheckInvalidIncrement(filename, clean_lines, line, error)
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for check_fn in extra_check_functions:
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check_fn(filename, clean_lines, line, error)
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def ProcessFileData(filename, file_extension, lines, error):
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def ProcessFileData(filename, file_extension, lines, error,
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extra_check_functions=[]):
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"""Performs lint checks and reports any errors to the given error function.
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Args:
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@ -2957,6 +2961,10 @@ def ProcessFileData(filename, file_extension, lines, error):
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lines: An array of strings, each representing a line of the file, with the
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last element being empty if the file is termined with a newline.
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error: A callable to which errors are reported, which takes 4 arguments:
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filename, line number, error level, and message
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extra_check_functions: An array of additional check functions that will be
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run on each source line. Each function takes 4
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arguments: filename, clean_lines, line, error
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"""
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lines = (['// marker so line numbers and indices both start at 1'] + lines +
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['// marker so line numbers end in a known way'])
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@ -2976,7 +2984,8 @@ def ProcessFileData(filename, file_extension, lines, error):
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clean_lines = CleansedLines(lines)
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for line in xrange(clean_lines.NumLines()):
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ProcessLine(filename, file_extension, clean_lines, line,
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include_state, function_state, class_state, error)
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include_state, function_state, class_state, error,
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extra_check_functions)
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class_state.CheckFinished(filename, error)
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CheckForIncludeWhatYouUse(filename, clean_lines, include_state, error)
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@ -2987,7 +2996,7 @@ def ProcessFileData(filename, file_extension, lines, error):
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CheckForNewlineAtEOF(filename, lines, error)
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def ProcessFile(filename, vlevel):
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def ProcessFile(filename, vlevel, extra_check_functions=[]):
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"""Does google-lint on a single file.
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Args:
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@ -2995,6 +3004,10 @@ def ProcessFile(filename, vlevel):
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vlevel: The level of errors to report. Every error of confidence
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>= verbose_level will be reported. 0 is a good default.
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extra_check_functions: An array of additional check functions that will be
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run on each source line. Each function takes 4
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arguments: filename, clean_lines, line, error
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"""
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_SetVerboseLevel(vlevel)
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@ -3039,7 +3052,8 @@ def ProcessFile(filename, vlevel):
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and file_extension != 'cpp'):
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sys.stderr.write('Ignoring %s; not a .cc or .h file\n' % filename)
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else:
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ProcessFileData(filename, file_extension, lines, Error)
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ProcessFileData(filename, file_extension, lines, Error,
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extra_check_functions)
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if carriage_return_found and os.linesep != '\r\n':
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# Use 0 for linenum since outputing only one error for potentially
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# several lines.
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