checker.py

wxPython的基本示例程序

                try:
                    file = open(filename)
                except IOError:
                    pass
                else:
                    self._setupMainCode(file, filename, module)
            return self._initModule(module)
        return 1

    def _initModule(self, module):
        self.module = module
        self.attributes = dir(self.module)

        pychecker_attr = getattr(module, Config.CHECKER_VAR, None)
        if pychecker_attr is not None :
            utils.pushConfig()
            utils.updateCheckerArgs(pychecker_attr, 'suppressions', 0, [])

        for tokenName in _filterDir(self.module, _DEFAULT_MODULE_TOKENS) :
            token = getattr(self.module, tokenName)
            if isinstance(token, types.ModuleType) :
                # get the real module name, tokenName could be an alias
                self.addModule(token.__name__)
            elif isinstance(token, types.FunctionType) :
                self.addFunction(token)
            elif isinstance(token, types.ClassType) or \
                 hasattr(token, '__bases__') :
                self.addClass(tokenName)
            else :
                self.addVariable(tokenName, type(token))

        if pychecker_attr is not None :
            utils.popConfig()
        return 1

    def setupMainCode(self) :
        file, filename, smt = _findModule(self.moduleName)
        # FIXME: if the smt[-1] == imp.PKG_DIRECTORY : load __all__
        module = imp.load_module(self.moduleName, file, filename, smt)
        self._setupMainCode(file, filename, module)
        return module

    def _setupMainCode(self, file, filename, module):
        try :
            self.main_code = function.create_from_file(file, filename, module)
        finally :
            if file != None :
                file.close()


def getAllModules() :
    "Returns a list of all modules that should be checked."
    modules = []
    for module in _allModules.values() :
        if module.check :
            modules.append(module)
    return modules

_BUILTIN_MODULE_ATTRS = { 'sys': [ 'ps1', 'ps2', 'tracebacklimit', 
                                   'exc_type', 'exc_value', 'exc_traceback',
                                   'last_type', 'last_value', 'last_traceback',
                                 ],
                        }

def fixupBuiltinModules(needs_init=0):
    for moduleName in sys.builtin_module_names :
        if needs_init:
            _ = Module(moduleName, 0)
        module = _allModules.get(moduleName, None)
        if module is not None :
            try :
                m = imp.init_builtin(moduleName)
            except ImportError :
                pass
            else :
                extra_attrs = _BUILTIN_MODULE_ATTRS.get(moduleName, [])
                module.attributes = [ '__dict__' ] + dir(m) + extra_attrs


def _printWarnings(warnings, stream=None):
    if stream is None:
        stream = sys.stdout
    
    warnings.sort()
    lastWarning = None
    for warning in warnings :
        if lastWarning != None :
            # ignore duplicate warnings
            if cmp(lastWarning, warning) == 0 :
                continue
            # print blank line between files
            if lastWarning.file != warning.file :
                global _output
                _output.AddLines("\n")

        lastWarning = warning
        _output.AddLines(warning.format() + "\n")


def processFiles(files, cfg = None, pre_process_cb = None) :
    # insert this here, so we find files in the local dir before std library
    if sys.path[0] != '' :
        sys.path.insert(0, '')

    # ensure we have a config object, it's necessary
    global _cfg
    if cfg is not None :
        _cfg = cfg
    elif _cfg is None :
        _cfg = Config.Config()

    warnings = []
    utils.initConfig(_cfg)
    for moduleName, filename in getModules(files) :
        if callable(pre_process_cb) :
            pre_process_cb(moduleName)
        module = Module(moduleName, fullpath = filename)

        # reload the given module, otherwise won't get new syntax errors.
        sysModule = sys.modules.get(moduleName)
        if sysModule:
            try:
                reload(sysModule)
            except:
                pass
                
        module.load(warnings)
    utils.popConfig()
    return warnings


def getWarnings(files, cfg = None, suppressions = None):
    warnings = processFiles(files, cfg)
    fixupBuiltinModules()
    return warnings + warn.find(getAllModules(), _cfg, suppressions)


def _print_processing(name) :
    if not _cfg.quiet :
        global _output, _statusDlg, _count
        txt = _("Processing %s...\n") % name
        _output.AddLines(txt)
        _count += 1
        _statusDlg.Update(_count, txt)
        


def checkSyntax(filename, messageView):
    """ Massively hacked version of main for ActiveGrid IDE integration """
    global _cfg
    _cfg, files, suppressions = Config.setupFromArgs([filename])
    if not files :
        return 0
                
    global _output, _statusDlg, _count
    _output = messageView
    # wxBug:  Need to show progress dialog box, or message window never gets updated until the method returns    
    _statusDlg = wx.ProgressDialog(_("Check Code"), _("Checking %s") % filename, maximum = 100, style = wx.PD_AUTO_HIDE | wx.PD_APP_MODAL | wx.PD_ELAPSED_TIME)  
    _count = 0

    # insert this here, so we find files in the local dir before std library
    if sys.path[0] != '' :
        sys.path.insert(0, '')

    importWarnings = processFiles(files, _cfg, _print_processing)
    fixupBuiltinModules()
    if _cfg.printParse :
        for module in getAllModules() :
            printer.module(module)

    warnings = warn.find(getAllModules(), _cfg, suppressions)
    
    _statusDlg.Update(100, _("Done"))
    _statusDlg.Destroy()
    
    if not _cfg.quiet :
        _output.AddLines(_("\nWarnings and Errors...\n"))
    if warnings or importWarnings :
        _printWarnings(importWarnings + warnings)
        return 1

    if not _cfg.quiet :
        _output.AddLines(_("No Syntax Errors"))
    return 0
    
##
##
##def main(argv) :
##    __pychecker__ = 'no-miximport'
##    import pychecker
##    if LOCAL_MAIN_VERSION != pychecker.MAIN_MODULE_VERSION :
##        sys.stderr.write(_VERSION_MISMATCH_ERROR)
##        sys.exit(100)
##
##    # remove empty arguments
##    argv = filter(None, argv)
##        
##    # if the first arg starts with an @, read options from the file
##    # after the @ (this is mostly for windows)
##    if len(argv) >= 2 and argv[1][0] == '@':
##        # read data from the file
##        command_file = argv[1][1:]
##        try:
##            f = open(command_file, 'r')
##            command_line = f.read()
##            f.close()
##        except IOError, err:
##            sys.stderr.write("Unable to read commands from file: %s\n  %s\n" % \
##                             (command_file, err))
##            sys.exit(101)
##
##        # convert to an argv list, keeping argv[0] and the files to process
##        argv = argv[:1] + string.split(command_line) + argv[2:]
## 
##    global _cfg
##    _cfg, files, suppressions = Config.setupFromArgs(argv[1:])
##    if not files :
##        return 0
##
##    # insert this here, so we find files in the local dir before std library
##    sys.path.insert(0, '')
##
##    importWarnings = processFiles(files, _cfg, _print_processing)
##    fixupBuiltinModules()
##    if _cfg.printParse :
##        for module in getAllModules() :
##            printer.module(module)
##
##    warnings = warn.find(getAllModules(), _cfg, suppressions)
##    if not _cfg.quiet :
##        print "\nWarnings...\n"
##    if warnings or importWarnings :
##        _printWarnings(importWarnings + warnings)
##        return 1
##
##    if not _cfg.quiet :
##        print "None"
##    return 0
##
##
##if __name__ == '__main__' :
##    try :
##        sys.exit(main(sys.argv))
##    except Config.UsageError :
##        sys.exit(127)
##
##else :
##    _orig__import__ = None
##    _suppressions = None
##    _warnings_cache = {}
##
##    def _get_unique_warnings(warnings):
##        for i in range(len(warnings)-1, -1, -1):
##            w = warnings[i].format()
##            if _warnings_cache.has_key(w):
##                del warnings[i]
##            else:
##                _warnings_cache[w] = 1
##        return warnings
##
##    def __import__(name, globals=None, locals=None, fromlist=None):
##        if globals is None:
##            globals = {}
##        if locals is None:
##            locals = {}
##        if fromlist is None:
##            fromlist = []
##
##        check = not sys.modules.has_key(name) and name[:10] != 'pychecker.'
##        pymodule = _orig__import__(name, globals, locals, fromlist)
##        if check :
##            try :
##                module = Module(pymodule.__name__)
##                if module.initModule(pymodule):
##                    warnings = warn.find([module], _cfg, _suppressions)
##                    _printWarnings(_get_unique_warnings(warnings))
##                else :
##                    print 'Unable to load module', pymodule.__name__
##            except Exception:
##                name = getattr(pymodule, '__name__', str(pymodule))
##                importError(name)
##
##        return pymodule
##
##    def _init() :
##        global _cfg, _suppressions, _orig__import__
##
##        args = string.split(os.environ.get('PYCHECKER', ''))
##        _cfg, files, _suppressions = Config.setupFromArgs(args)
##        utils.initConfig(_cfg)
##        fixupBuiltinModules(1)
##
##        # keep the orig __import__ around so we can call it
##        import __builtin__
##        _orig__import__ = __builtin__.__import__
##        __builtin__.__import__ = __import__
##
##    if not os.environ.get('PYCHECKER_DISABLED') :
##        _init()
##