--- a/eric6/Plugins/CheckerPlugins/CodeStyleChecker/Miscellaneous/MiscellaneousChecker.py Fri Apr 02 11:59:41 2021 +0200
+++ b/eric6/Plugins/CheckerPlugins/CodeStyleChecker/Miscellaneous/MiscellaneousChecker.py Sat May 01 14:27:20 2021 +0200
@@ -14,6 +14,8 @@
from string import Formatter
from collections import defaultdict
import tokenize
+import copy
+import contextlib
import AstUtilities
@@ -32,14 +34,13 @@
@ytype str
"""
if isinstance(node, ast.Attribute):
- for v in composeCallPath(node.value):
- yield v
+ yield from composeCallPath(node.value)
yield node.attr
elif isinstance(node, ast.Name):
yield node.id
-class MiscellaneousChecker(object):
+class MiscellaneousChecker:
"""
Class implementing a checker for miscellaneous checks.
"""
@@ -110,9 +111,6 @@
## commented code
"M891",
-
- ## syntax error
- "M901",
]
Formatter = Formatter()
@@ -124,8 +122,8 @@
"credits",
]
- def __init__(self, source, filename, select, ignore, expected, repeat,
- args):
+ def __init__(self, source, filename, tree, select, ignore, expected,
+ repeat, args):
"""
Constructor
@@ -133,6 +131,8 @@
@type list of str
@param filename name of the source file
@type str
+ @param tree AST tree of the source code
+ @type ast.Module
@param select list of selected codes
@type list of str
@param ignore list of codes to be ignored
@@ -150,6 +150,7 @@
self.__repeat = repeat
self.__filename = filename
self.__source = source[:]
+ self.__tree = copy.deepcopy(tree)
self.__args = args
self.__pep3101FormatRegex = re.compile(
@@ -267,29 +268,6 @@
}
)
- def __reportInvalidSyntax(self):
- """
- Private method to report a syntax error.
- """
- exc_type, exc = sys.exc_info()[:2]
- if len(exc.args) > 1:
- offset = exc.args[1]
- if len(offset) > 2:
- offset = offset[1:3]
- else:
- offset = (1, 0)
- self.__error(offset[0] - 1, offset[1] or 0,
- 'M901', exc_type.__name__, exc.args[0])
-
- def __generateTree(self):
- """
- Private method to generate an AST for our source.
-
- @return generated AST
- @rtype ast.AST
- """
- return ast.parse("".join(self.__source), self.__filename)
-
def run(self):
"""
Public method to check the given source against miscellaneous
@@ -303,12 +281,6 @@
# don't do anything, if no codes were selected
return
- try:
- self.__tree = self.__generateTree()
- except (SyntaxError, TypeError):
- self.__reportInvalidSyntax()
- return
-
for check in self.__checkers:
check()
@@ -480,7 +452,7 @@
if isinstance(node, ast.Module) or not hasCode:
return
- if not (imports >= expectedImports):
+ if imports < expectedImports:
if imports:
self.__error(node.lineno - 1, node.col_offset, "M701",
", ".join(expectedImports), ", ".join(imports))
@@ -572,14 +544,12 @@
# if starargs or kwargs is not None, it can't count the
# parameters but at least check if the args are used
- if hasKwArgs:
- if not names:
- # No names but kwargs
- self.__error(call.lineno - 1, call.col_offset, "M623")
- if hasStarArgs:
- if not numbers:
- # No numbers but args
- self.__error(call.lineno - 1, call.col_offset, "M624")
+ if hasKwArgs and not names:
+ # No names but kwargs
+ self.__error(call.lineno - 1, call.col_offset, "M623")
+ if hasStarArgs and not numbers:
+ # No numbers but args
+ self.__error(call.lineno - 1, call.col_offset, "M624")
if not hasKwArgs and not hasStarArgs:
# can actually verify numbers and names
@@ -642,10 +612,8 @@
Private method to check, if built-ins are shadowed.
"""
functionDefs = [ast.FunctionDef]
- try:
+ with contextlib.suppress(AttributeError):
functionDefs.append(ast.AsyncFunctionDef)
- except AttributeError:
- pass
ignoreBuiltinAssignments = self.__args.get(
"BuiltinsChecker",
@@ -830,19 +798,15 @@
"frozenset",
)
functionDefs = [ast.FunctionDef]
- try:
+ with contextlib.suppress(AttributeError):
functionDefs.append(ast.AsyncFunctionDef)
- except AttributeError:
- pass
for node in ast.walk(self.__tree):
if any(isinstance(node, functionDef)
for functionDef in functionDefs):
defaults = node.args.defaults[:]
- try:
+ with contextlib.suppress(AttributeError):
defaults += node.args.kw_defaults[:]
- except AttributeError:
- pass
for default in defaults:
if any(isinstance(default, mutableType)
for mutableType in mutableTypes):
@@ -943,7 +907,7 @@
"""
# step 1: generate an augmented node tree containing parent info
# for each child node
- tree = self.__generateTree()
+ tree = copy.deepcopy(self.__tree)
for node in ast.walk(tree):
for childNode in ast.iter_child_nodes(node):
childNode._dtCheckerParent = node
@@ -981,7 +945,7 @@
"""
Constructor
"""
- super(TextVisitor, self).__init__()
+ super().__init__()
self.nodes = []
self.calls = {}
@@ -1025,9 +989,9 @@
if AstUtilities.isBaseString(node):
self.__addNode(node)
else:
- super(TextVisitor, self).generic_visit(node)
+ super().generic_visit(node)
else:
- super(TextVisitor, self).generic_visit(node)
+ super().generic_visit(node)
def __visitDefinition(self, node):
"""
@@ -1123,7 +1087,7 @@
AstUtilities.isBaseString(node.args[0])
):
self.calls[node.args[0]] = (node, True)
- super(TextVisitor, self).generic_visit(node)
+ super().generic_visit(node)
class LoggingVisitor(ast.NodeVisitor):
@@ -1143,7 +1107,7 @@
"""
Constructor
"""
- super(LoggingVisitor, self).__init__()
+ super().__init__()
self.__currentLoggingCall = None
self.__currentLoggingArgument = None
@@ -1192,14 +1156,12 @@
@return logging level
@rtype str or None
"""
- try:
+ with contextlib.suppress(AttributeError):
if node.func.value.id == "warnings":
return None
if node.func.attr in LoggingVisitor.LoggingLevels:
return node.func.attr
- except AttributeError:
- pass
return None
@@ -1228,11 +1190,14 @@
@type ast.Call
"""
# we are in a logging statement
- if self.__withinLoggingStatement():
- if self.__withinLoggingArgument() and self.__isFormatCall(node):
- self.violations.append((node, "M651"))
- super(LoggingVisitor, self).generic_visit(node)
- return
+ if (
+ self.__withinLoggingStatement() and
+ self.__withinLoggingArgument() and
+ self.__isFormatCall(node)
+ ):
+ self.violations.append((node, "M651"))
+ super().generic_visit(node)
+ return
loggingLevel = self.__detectLoggingLevel(node)
@@ -1241,7 +1206,7 @@
# we are in some other statement
if loggingLevel is None:
- super(LoggingVisitor, self).generic_visit(node)
+ super().generic_visit(node)
return
# we are entering a new logging statement
@@ -1260,7 +1225,7 @@
):
self.__currentExtraKeyword = child
- super(LoggingVisitor, self).visit(child)
+ super().visit(child)
self.__currentLoggingArgument = None
self.__currentExtraKeyword = None
@@ -1285,7 +1250,7 @@
if isinstance(node.op, ast.Add):
self.violations.append((node, "M653"))
- super(LoggingVisitor, self).generic_visit(node)
+ super().generic_visit(node)
def visit_JoinedStr(self, node):
"""
@@ -1294,12 +1259,14 @@
@param node reference to the node to be processed
@type ast.JoinedStr
"""
- if self.__withinLoggingStatement():
- if any(isinstance(i, ast.FormattedValue) for i in node.values):
- if self.__withinLoggingArgument():
- self.violations.append((node, "M654"))
-
- super(LoggingVisitor, self).generic_visit(node)
+ if (
+ self.__withinLoggingStatement() and
+ any(isinstance(i, ast.FormattedValue) for i in node.values) and
+ self.__withinLoggingArgument()
+ ):
+ self.violations.append((node, "M654"))
+
+ super().generic_visit(node)
class BugBearVisitor(ast.NodeVisitor):
@@ -1317,7 +1284,7 @@
"""
Constructor
"""
- super(BugBearVisitor, self).__init__()
+ super().__init__()
self.__nodeStack = []
self.__nodeWindow = []
@@ -1334,7 +1301,7 @@
self.__nodeWindow.append(node)
self.__nodeWindow = self.__nodeWindow[-BugBearVisitor.NodeWindowSize:]
- super(BugBearVisitor, self).visit(node)
+ super().visit(node)
self.__nodeStack.pop()
@@ -1376,7 +1343,7 @@
else:
self.__checkForM502(node)
else:
- try:
+ with contextlib.suppress(AttributeError, IndexError):
# bad super() call
if isinstance(node.func, ast.Name) and node.func.id == "super":
args = node.args
@@ -1407,8 +1374,6 @@
AstUtilities.isString(node.args[1])
):
self.violations.append((node, "M513"))
- except (AttributeError, IndexError):
- pass
self.generic_visit(node)
@@ -1452,10 +1417,10 @@
target = node.targets[0]
if (
isinstance(target, ast.Attribute) and
- isinstance(target.value, ast.Name)
+ isinstance(target.value, ast.Name) and
+ (target.value.id, target.attr) == ('os', 'environ')
):
- if (target.value.id, target.attr) == ('os', 'environ'):
- self.violations.append((node, "M506"))
+ self.violations.append((node, "M506"))
self.generic_visit(node)
@@ -1559,7 +1524,7 @@
"""
Constructor
"""
- super(NameFinder, self).__init__()
+ super().__init__()
self.__names = {}
@@ -1581,9 +1546,9 @@
"""
if isinstance(node, list):
for elem in node:
- super(NameFinder, self).visit(elem)
+ super().visit(elem)
else:
- super(NameFinder, self).visit(node)
+ super().visit(node)
def getNames(self):
"""
@@ -1607,7 +1572,7 @@
"""
Constructor
"""
- super(ReturnVisitor, self).__init__()
+ super().__init__()
self.__stack = []
self.violations = []
@@ -1968,7 +1933,7 @@
"""
Constructor
"""
- super(DateTimeVisitor, self).__init__()
+ super().__init__()
self.violations = []
@@ -2126,10 +2091,11 @@
# datetime.strptime(...).replace(tzinfo=UTC)
parent = getattr(node, '_dtCheckerParent', None)
pparent = getattr(parent, '_dtCheckerParent', None)
- if not (isinstance(parent, ast.Attribute) and
- parent.attr == 'replace'):
- isCase1 = False
- elif not isinstance(pparent, ast.Call):
+ if (
+ not (isinstance(parent, ast.Attribute) and
+ parent.attr == 'replace') or
+ not isinstance(pparent, ast.Call)
+ ):
isCase1 = False
else:
tzinfoKeyword = self.__getFromKeywords(pparent.keywords,
@@ -2188,7 +2154,7 @@
"""
Constructor
"""
- super(SysVersionVisitor, self).__init__()
+ super().__init__()
self.violations = []
self.__fromImports = {}
@@ -2219,16 +2185,13 @@
"""
match = False
if (
- isinstance(node, ast.Attribute) and
- isinstance(node.value, ast.Name) and
- node.value.id == "sys" and
- node.attr == attr
- ):
- match = True
- elif (
- isinstance(node, ast.Name) and
- node.id == attr and
- self.__fromImports.get(node.id) == "sys"
+ (isinstance(node, ast.Attribute) and
+ isinstance(node.value, ast.Name) and
+ node.value.id == "sys" and
+ node.attr == attr) or
+ (isinstance(node, ast.Name) and
+ node.id == attr and
+ self.__fromImports.get(node.id) == "sys")
):
match = True
