How to use analyze_morf method in autotest

Best Python code snippet using autotest_python

coverage.py

Source:coverage.py

...238            file = morf.__file__239        else:240            file = morf241        return self.canonical_filename(file)242    # analyze_morf(morf).  Analyze the module or filename passed as243    # the argument.  If the source code can't be found, raise an error.244    # Otherwise, return a pair of (1) the canonical filename of the245    # source code for the module, and (2) a list of lines of statements246    # in the source code.247    def analyze_morf(self, morf):248        if self.analysis_cache.has_key(morf):249            return self.analysis_cache[morf]250        filename = self.morf_filename(morf)251        ext = os.path.splitext(filename)[1]252        if ext == '.pyc':253            if not os.path.exists(filename[0:-1]):254                raise self.error, ("No source for compiled code '%s'."255                                   % filename)256            filename = filename[0:-1]257        elif ext != '.py':258            raise self.error, "File '%s' not Python source." % filename259        source = open(filename, 'r')260        import parser261        tree = parser.suite(source.read()).totuple(1)262        source.close()263        statements = {}264        self.find_statements(tree, statements)265        lines = statements.keys()266        lines.sort()267        result = filename, lines268        self.analysis_cache[morf] = result269        return result270    # find_statements(tree, dict).  Find each statement in the parse271    # tree and record the line on which the statement starts in the272    # dictionary (by assigning it to 1).273    #274    # It works by walking the whole tree depth-first.  Every time it275    # comes across a statement (symbol.stmt -- this includes compound276    # statements like 'if' and 'while') it calls find_statement, which277    # descends the tree below the statement to find the first terminal278    # token in that statement and record the lines on which that token279    # was found.280    #281    # This algorithm may find some lines several times (because of the282    # grammar production statement -> compound statement -> statement),283    # but that doesn't matter because we record lines as the keys of the284    # dictionary.285    #286    # See also [GDR 2001-12-04b, 3.2].287    def find_statements(self, tree, dict):288        import symbol, token289        if token.ISNONTERMINAL(tree[0]):290            for t in tree[1:]:291                self.find_statements(t, dict)292            if tree[0] == symbol.stmt:293                self.find_statement(tree[1], dict)294        elif (tree[0] == token.NAME295              and tree[1] in ['elif', 'except', 'finally']):296            dict[tree[2]] = 1297    def find_statement(self, tree, dict):298        import token299        while token.ISNONTERMINAL(tree[0]):300            tree = tree[1]301        dict[tree[2]] = 1302    # format_lines(statements, lines).  Format a list of line numbers303    # for printing by coalescing groups of lines as long as the lines304    # represent consecutive statements.  This will coalesce even if305    # there are gaps between statements, so if statements =306    # [1,2,3,4,5,10,11,12,13,14] and lines = [1,2,5,10,11,13,14] then307    # format_lines will return "1-2, 5-11, 13-14".308    def format_lines(self, statements, lines):309        pairs = []310        i = 0311        j = 0312        start = None313        pairs = []314        while i < len(statements) and j < len(lines):315            if statements[i] == lines[j]:316                if start == None:317                    start = lines[j]318                end = lines[j]319                j = j + 1320            elif start:321                pairs.append((start, end))322                start = None323            i = i + 1324        if start:325            pairs.append((start, end))326        def stringify(pair):327            start, end = pair328            if start == end:329                return "%d" % start330            else:331                return "%d-%d" % (start, end)332        import string333        return string.join(map(stringify, pairs), ", ")334    def analysis(self, morf):335        filename, statements = self.analyze_morf(morf)336        self.canonicalize_filenames()337        if not self.cexecuted.has_key(filename):338            self.cexecuted[filename] = {}339        missing = []340        for line in statements:341            if not self.cexecuted[filename].has_key(line):342                missing.append(line)343        return (filename, statements, missing,344                self.format_lines(statements, missing))345    def morf_name(self, morf):346        if isinstance(morf, types.ModuleType):347            return morf.__name__348        else:349            return os.path.splitext(os.path.basename(morf))[0]...

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