Mercurial Repositories > eric / file comparison
comparison: eric6/Plugins/CheckerPlugins/CodeStyleChecker/Complexity/ComplexityChecker.py
eric6/Plugins/CheckerPlugins/CodeStyleChecker/Complexity/ComplexityChecker.py
- changeset 8198
- 1c765dc90c21
- parent 8168
- bdb0258faf42
- child 8207
- d359172d11be
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| 8197:9037d09ed87c | 8198:1c765dc90c21 |
|---|---|
| 5 | 5 |
| 6 """ | 6 """ |
| 7 Module implementing a checker for code complexity. | 7 Module implementing a checker for code complexity. |
| 8 """ | 8 """ |
| 9 | 9 |
| 10 import sys | 10 import copy |
| 11 import ast | 11 import ast |
| 12 | 12 |
| 13 from .mccabe import PathGraphingAstVisitor | 13 from .mccabe import PathGraphingAstVisitor |
| 14 | 14 |
| 15 | 15 |
| 18 Class implementing a checker for code complexity. | 18 Class implementing a checker for code complexity. |
| 19 """ | 19 """ |
| 20 Codes = [ | 20 Codes = [ |
| 21 "C101", | 21 "C101", |
| 22 "C111", "C112", | 22 "C111", "C112", |
| 23 | |
| 24 "C901", | |
| 25 ] | 23 ] |
| 26 | 24 |
| 27 def __init__(self, source, filename, select, ignore, args): | 25 def __init__(self, source, filename, tree, select, ignore, args): |
| 28 """ | 26 """ |
| 29 Constructor | 27 Constructor |
| 30 | 28 |
| 31 @param source source code to be checked | 29 @param source source code to be checked |
| 32 @type list of str | 30 @type list of str |
| 33 @param filename name of the source file | 31 @param filename name of the source file |
| 34 @type str | 32 @type str |
| 33 @param tree AST tree of the source code | |
| 34 @type ast.Module | |
| 35 @param select list of selected codes | 35 @param select list of selected codes |
| 36 @type list of str | 36 @type list of str |
| 37 @param ignore list of codes to be ignored | 37 @param ignore list of codes to be ignored |
| 38 @type list of str | 38 @type list of str |
| 39 @param args dictionary of arguments for the miscellaneous checks | 39 @param args dictionary of arguments for the miscellaneous checks |
| 40 @type dict | 40 @type dict |
| 41 """ | 41 """ |
| 42 self.__filename = filename | 42 self.__filename = filename |
| 43 self.__source = source[:] | 43 self.__source = source[:] |
| 44 self.__tree = copy.deepcopy(tree) | |
| 44 self.__select = tuple(select) | 45 self.__select = tuple(select) |
| 45 self.__ignore = ('',) if select else tuple(ignore) | 46 self.__ignore = ('',) if select else tuple(ignore) |
| 46 self.__args = args | 47 self.__args = args |
| 47 | 48 |
| 48 self.__defaultArgs = { | 49 self.__defaultArgs = { |
| 111 "code": code, | 112 "code": code, |
| 112 "args": args, | 113 "args": args, |
| 113 } | 114 } |
| 114 ) | 115 ) |
| 115 | 116 |
| 116 def __reportInvalidSyntax(self): | |
| 117 """ | |
| 118 Private method to report a syntax error. | |
| 119 """ | |
| 120 exc_type, exc = sys.exc_info()[:2] | |
| 121 if len(exc.args) > 1: | |
| 122 offset = exc.args[1] | |
| 123 if len(offset) > 2: | |
| 124 offset = offset[1:3] | |
| 125 else: | |
| 126 offset = (1, 0) | |
| 127 self.__error(offset[0] - 1, offset[1] or 0, | |
| 128 'C901', exc_type.__name__, exc.args[0]) | |
| 129 | |
| 130 def run(self): | 117 def run(self): |
| 131 """ | 118 """ |
| 132 Public method to check the given source for code complexity. | 119 Public method to check the given source for code complexity. |
| 133 """ | 120 """ |
| 134 if not self.__filename or not self.__source: | 121 if not self.__filename or not self.__source: |
| 135 # don't do anything, if essential data is missing | 122 # don't do anything, if essential data is missing |
| 136 return | 123 return |
| 137 | 124 |
| 138 if not self.__checkers: | 125 if not self.__checkers: |
| 139 # don't do anything, if no codes were selected | 126 # don't do anything, if no codes were selected |
| 140 return | |
| 141 | |
| 142 try: | |
| 143 self.__tree = ast.parse("".join(self.__source), self.__filename) | |
| 144 except (SyntaxError, TypeError): | |
| 145 self.__reportInvalidSyntax() | |
| 146 return | 127 return |
| 147 | 128 |
| 148 for check in self.__checkers: | 129 for check in self.__checkers: |
| 149 check() | 130 check() |
| 150 | 131 |
