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cppcheckdata.py
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executable file
·1715 lines (1509 loc) · 58.3 KB
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"""
cppcheckdata
This is a Python module that helps you access Cppcheck dump data.
License: No restrictions, use this as you need.
"""
import argparse
import json
import os
import sys
import subprocess
try:
import pathlib
except ImportError:
message = "Failed to load pathlib. Upgrade Python to 3.x or install pathlib with 'pip install pathlib'."
error_id = 'pythonError'
if '--cli' in sys.argv:
msg = { 'file': '',
'linenr': 0,
'column': 0,
'severity': 'error',
'message': message,
'addon': 'cppcheckdata',
'errorId': error_id,
'extra': ''}
sys.stdout.write(json.dumps(msg) + '\n')
else:
sys.stderr.write('%s [%s]\n' % (message, error_id))
sys.exit(1)
from xml.etree import ElementTree
from fnmatch import fnmatch
EXIT_CODE = 0
current_dumpfile_suppressions = []
def _load_location(location, element):
"""Load location from element/dict"""
location.file = element.get('file')
line = element.get('line')
if line is None:
line = element.get('linenr')
if line is None:
line = '0'
location.linenr = int(line)
location.column = int(element.get('column', '0'))
class Location:
"""Utility location class"""
file = None
linenr = None
column = None
def __init__(self, element):
_load_location(self, element)
class Directive:
"""
Directive class. Contains information about each preprocessor directive in the source code.
Attributes:
str The directive line, with all C or C++ comments removed
file Name of (possibly included) file where directive is defined
linenr Line number in (possibly included) file where directive is defined
To iterate through all directives use such code:
@code
data = cppcheckdata.parsedump(...)
for cfg in data.configurations:
for directive in cfg.directives:
print(directive.str)
@endcode
"""
#preprocessor.cpp/Preprocessor::dump
str = None
file = None
linenr = None
column = None
def __init__(self, element):
self.str = element.get('str')
_load_location(self, element)
def __repr__(self):
attrs = ["str", "file", "linenr"]
return "{}({})".format(
"Directive",
", ".join(("{}={}".format(a, repr(getattr(self, a))) for a in attrs))
)
class MacroUsage:
"""
Tracks preprocessor macro usage
Attributes:
name Name of the macro
usefile
useline
usecolumn
isKnownValue
"""
#preprocessor.cpp/Preprocessor::dump
name = None # Macro name
file = None
linenr = None
column = None
usefile = None
uselinenr = None
usecolumn = None
def __init__(self, element):
self.name = element.get('name')
_load_location(self, element)
self.usefile = element.get('usefile')
self.useline = element.get('useline')
self.usecolumn = element.get('usecolumn')
self.isKnownValue = element.get('is-known-value', 'false') == 'true'
def __repr__(self):
attrs = ["name", "file", "linenr", "column", "usefile", "useline", "usecolumn", "isKnownValue"]
return "{}({})".format(
"MacroUsage",
", ".join(("{}={}".format(a, repr(getattr(self, a))) for a in attrs))
)
class PreprocessorIfCondition:
"""
Information about #if/#elif conditions
Attributes:
E
result
"""
#preprocessor.cpp/Preprocessor::dump
file = None
linenr = None
column = None
E = None
result = None
def __init__(self, element):
_load_location(self, element)
self.E = element.get('E')
self.result = int(element.get('result'))
def __repr__(self):
attrs = ["file", "linenr", "column", "E", "result"]
return "{}({})".format(
"PreprocessorIfCondition",
", ".join(("{}={}".format(a, repr(getattr(self, a))) for a in attrs))
)
class ValueType:
"""
ValueType class. Contains (promoted) type information for each node in the AST.
Attributes:
type nonstd/pod/record/smart-pointer/container/iterator/void/bool/char/short/wchar_t/int/long/long long/unknown int/float/double/long double
sign signed/unsigned
bits
pointer
constness
reference
typeScopeId
originalTypeName bool/const char */long/char */size_t/int/double/std::string/..
"""
#symboldatabase.cpp/ValueType::dump
type = None
sign = None
bits = 0
constness = 0
pointer = 0
typeScopeId = None
typeScope = None
originalTypeName = None
def __init__(self, element):
self.type = element.get('valueType-type')
self.sign = element.get('valueType-sign')
self.bits = int(element.get('valueType-bits', 0))
self.pointer = int(element.get('valueType-pointer', 0))
self.constness = int(element.get('valueType-constness', 0))
self.reference = element.get('valueType-reference')
self.typeScopeId = element.get('valueType-typeScope')
self.originalTypeName = element.get('valueType-originalTypeName')
#valueType-containerId TODO add
def __repr__(self):
attrs = ["type", "sign", "bits", "typeScopeId", "originalTypeName",
"constness", "pointer"]
return "{}({})".format(
"ValueType",
", ".join(("{}={}".format(a, repr(getattr(self, a))) for a in attrs))
)
def setId(self, IdMap):
self.typeScope = IdMap[self.typeScopeId]
def isIntegral(self):
return self.type in {'bool', 'char', 'short', 'int', 'long', 'long long'}
def isFloat(self):
return self.type in {'float', 'double', 'long double'}
def isEnum(self):
return self.typeScope and self.typeScope.type == "Enum"
class Token:
"""
Token class. Contains information about each token in the source code.
The CppcheckData.tokenlist is a list of Token items
C++ class: https://cppcheck.sourceforge.io/devinfo/doxyoutput/classToken.html
Attributes:
str Token string
next Next token in tokenlist. For last token, next is None.
previous Previous token in tokenlist. For first token, previous is None.
link Linked token in tokenlist. Each '(', '[' and '{' are linked to the
corresponding '}', ']' and ')'. For templates, the '<' is linked to
the corresponding '>'.
scope Scope information for this token. See the Scope class.
type Type information: name/op/number/string/..
isName Is this token a symbol name
isUnsigned Is this token a unsigned type
isSigned Is this token a signed type
isNumber Is this token a number, for example 123, 12.34
isInt Is this token a int value such as 1234
isFloat Is this token a float value such as 12.34
isString Is this token a string literal such as "hello"
strlen string length for string literal
isChar Is this token a char literal such as 'x'
isBoolean Is this token a boolean
isOp Is this token a operator
isArithmeticalOp Is this token a arithmetic operator
isAssignmentOp Is this token a assignment operator
isComparisonOp Is this token a comparison operator
isLogicalOp Is this token a logical operator: && ||
isCast
externLang
isExpandedMacro Is this token a expanded macro token
macroName Macro name that this token is expanded from
isRemovedVoidParameter Has void parameter been removed?
isSplittedVarDeclComma Is this a comma changed to semicolon in a split variable declaration ('int a,b;' => 'int a; int b;')
isSplittedVarDeclEq Is this a '=' changed to semicolon in a split variable declaration ('int a=5;' => 'int a; a=5;')
isImplicitInt Is this token an implicit "int"?
isComplex
isRestrict
isAttributeExport
varId varId for token, each variable has a unique non-zero id
exprId exprId for token, each expression has a unique non-zero id
variable Variable information for this token. See the Variable class.
function If this token points at a function call, this attribute has the Function
information. See the Function class.
values Possible/Known values of token
typeScope type scope (token->type()->classScope)
astParent ast parent
astOperand1 ast operand1
astOperand2 ast operand2
orriginalName orriginal name of the token
valueType type information: container/..
file file name
linenr line number
column column
To iterate through all tokens use such code:
@code
data = cppcheckdata.parsedump(...)
for cfg in data.configurations:
code = ''
for token in cfg.tokenlist:
code = code + token.str + ' '
print(code)
@endcode
"""
#tokenize.cpp/Tokenizer::dump
Id = None
str = None
next = None
previous = None
linkId = None
link = None
scopeId = None
scope = None
isName = False
isNumber = False
isInt = False
isFloat = False
isString = False
strlen = None
isChar = False
isBoolean = False
isOp = False
isArithmeticalOp = False
isAssignmentOp = False
isComparisonOp = False
isLogicalOp = False
isCast = False
isUnsigned = False
isSigned = False
macroName = None
isExpandedMacro = False
isRemovedVoidParameter = False
isSplittedVarDeclComma = False
isSplittedVarDeclEq = False
isImplicitInt = False
isComplex = False
isRestrict = False
isAttributeExport = False
exprId = None
varId = None
variableId = None
variable = None
functionId = None
function = None
valuesId = None
values = None
impossible_values = None
valueType = None
typeScopeId = None
typeScope = None
type = None
astParentId = None
astParent = None
astOperand1Id = None
astOperand1 = None
astOperand2Id = None
astOperand2 = None
file = None
linenr = None
column = None
def __init__(self, element):
self.Id = element.get('id')
self.str = element.get('str')
self.next = None
self.previous = None
self.scopeId = element.get('scope')
self.scope = None
self.type = element.get('type')
if self.type == 'name':
self.isName = True
if element.get('isUnsigned'):
self.isUnsigned = True
if element.get('isSigned'):
self.isSigned = True
elif self.type == 'number':
self.isNumber = True
if element.get('isInt'):
self.isInt = True
elif element.get('isFloat'):
self.isFloat = True
elif self.type == 'string':
self.isString = True
self.strlen = int(element.get('strlen'))
elif self.type == 'char':
self.isChar = True
elif self.type == 'boolean':
self.isBoolean = True
elif self.type == 'op':
self.isOp = True
if element.get('isArithmeticalOp'):
self.isArithmeticalOp = True
elif element.get('isAssignmentOp'):
self.isAssignmentOp = True
elif element.get('isComparisonOp'):
self.isComparisonOp = True
elif element.get('isLogicalOp'):
self.isLogicalOp = True
if element.get('isCast'):
self.isCast = True
self.externLang = element.get('externLang')
self.macroName = element.get('macroName')
if self.macroName or element.get('isExpandedMacro'):
self.isExpandedMacro = True
if element.get('isRemovedVoidParameter'):
self.isRemovedVoidParameter = True
if element.get('isSplittedVarDeclComma'):
self.isSplittedVarDeclComma = True
if element.get('isSplittedVarDeclEq'):
self.isSplittedVarDeclEq = True
if element.get('isImplicitInt'):
self.isImplicitInt = True
if element.get('isComplex'):
self.isComplex = True
if element.get('isRestrict'):
self.isRestrict = True
if element.get('isAttributeExport'):
self.isAttributeExport = True
self.linkId = element.get('link')
self.link = None
if element.get('varId'):
self.varId = int(element.get('varId'))
if element.get('exprId'):
self.exprId = int(element.get('exprId'))
self.variableId = element.get('variable')
self.variable = None
self.functionId = element.get('function')
self.function = None
self.valuesId = element.get('values')
self.values = None
self.typeScopeId = element.get('type-scope')
self.typeScope = None
self.astParentId = element.get('astParent')
self.astParent = None
self.astOperand1Id = element.get('astOperand1')
self.astOperand1 = None
self.astOperand2Id = element.get('astOperand2')
self.astOperand2 = None
self.originalName = element.get('originalName')
if element.get('valueType-type'):
self.valueType = ValueType(element)
else:
self.valueType = None
_load_location(self, element)
def __repr__(self):
attrs = ["Id", "str", "scopeId", "isName", "isUnsigned", "isSigned",
"isNumber", "isInt", "isFloat", "isString", "strlen",
"isChar", "isBoolean", "isOp", "isArithmeticalOp", "isAssignmentOp",
"isComparisonOp", "isLogicalOp", "isCast", "externLang", "isExpandedMacro",
"isRemovedVoidParameter", "isSplittedVarDeclComma", "isSplittedVarDeclEq",
"isImplicitInt", "isComplex", "isRestrict", "isAttributeExport", "linkId",
"varId", "variableId", "functionId", "valuesId", "valueType",
"typeScopeId", "astParentId", "astOperand1Id", "file",
"linenr", "column"]
return "{}({})".format(
"Token",
", ".join(("{}={}".format(a, repr(getattr(self, a))) for a in attrs))
)
def setId(self, IdMap):
self.scope = IdMap[self.scopeId]
self.link = IdMap[self.linkId]
self.variable = IdMap[self.variableId]
self.function = IdMap[self.functionId]
self.values = []
self.impossible_values = []
if IdMap[self.valuesId]:
for v in IdMap[self.valuesId]:
if v.isImpossible():
self.impossible_values.append(v)
else:
self.values.append(v)
v.setId(IdMap)
self.typeScope = IdMap[self.typeScopeId]
self.astParent = IdMap[self.astParentId]
self.astOperand1 = IdMap[self.astOperand1Id]
self.astOperand2 = IdMap[self.astOperand2Id]
if self.valueType:
self.valueType.setId(IdMap)
def getValue(self, v):
"""
Get value if it exists
Returns None if it doesn't exist
"""
if not self.values:
return None
for value in self.values:
if value.intvalue == v:
return value
return None
def getKnownIntValue(self):
"""
If token has a known int value then return that.
Otherwise returns None
"""
if not self.values:
return None
for value in self.values:
if value.valueKind == 'known':
return value.intvalue
return None
def isUnaryOp(self, op):
return self.astOperand1 and (self.astOperand2 is None) and self.str == op
def isBinaryOp(self):
return self.astOperand1 and self.astOperand2
def forward(self, end=None):
token = self
while token and token != end:
yield token
token = token.next
def backward(self, start=None):
token = self
while token and token != start:
yield token
token = token.previous
def astParents(self):
token = self
while token and token.astParent:
token = token.astParent
yield token
def astTop(self):
top = None
for parent in self.astParents():
top = parent
return top
def tokAt(self, n):
tl = self.forward()
if n < 0:
tl = self.backward()
n = -n
for i, t in enumerate(tl):
if i == n:
return t
def linkAt(self, n):
token = self.tokAt(n)
if token:
return token.link
return None
class Scope:
"""
Scope. Information about global scope, function scopes, class scopes, inner scopes, etc.
C++ class: https://cppcheck.sourceforge.io/devinfo/doxyoutput/classScope.html
Attributes
bodyStart The { Token for this scope
bodyEnd The } Token for this scope
className Name of this scope.
For a function scope, this is the function name;
For a class scope, this is the class name.
function If this scope belongs at a function call, this attribute
has the Function information. See the Function class.
functions if this is a Class type, it may have functions defined
nestedIn
type Type of scope: Function, If/Else/For/While/Switch/Global/Enum/Struct/Namespace/Class/Constructor/Destructor
isExecutable True when the type is: Function/If/Else/For/While/Do/Switch/Try/Catch/Unconditional/Lambda
definedType
"""
#symboldatabase.cpp/SymbolDatabase::printXml
Id = None
bodyStartId = None
bodyStart = None
bodyEndId = None
bodyEnd = None
className = None
functionId = None
function = None
nestedInId = None
nestedIn = None
nestedList = None
type = None
isExecutable = None
varlistId = None
varlist = None
def __init__(self, element):
self.Id = element.get('id')
self.className = element.get('className')
self.functionId = element.get('function')
self.function = None
self.functions = []
self.bodyStartId = element.get('bodyStart')
self.bodyStart = None
self.bodyEndId = element.get('bodyEnd')
self.bodyEnd = None
self.nestedInId = element.get('nestedIn')
self.nestedIn = None
self.nestedList = list()
self.type = element.get('type')
self.definedType = element.get('definedType')
self.isExecutable = (self.type in ('Function', 'If', 'Else', 'For', 'While', 'Do',
'Switch', 'Try', 'Catch', 'Unconditional', 'Lambda'))
self.varlistId = list()
self.varlist = list()
def __repr__(self):
attrs = ["Id", "className", "functionId", "bodyStartId", "bodyEndId",
"nestedInId", "nestedIn", "type", "definedType", "isExecutable", "functions"]
return "{}({})".format(
"Scope",
", ".join(("{}={}".format(a, repr(getattr(self, a))) for a in attrs))
)
def setId(self, IdMap):
self.bodyStart = IdMap[self.bodyStartId]
self.bodyEnd = IdMap[self.bodyEndId]
self.nestedIn = IdMap[self.nestedInId]
if self.nestedIn:
self.nestedIn.nestedList.append(self)
self.function = IdMap[self.functionId]
for v in self.varlistId:
value = IdMap.get(v)
if value:
self.varlist.append(value)
class Function:
"""
Information about a function
C++ class:
https://cppcheck.sourceforge.io/devinfo/doxyoutput/classFunction.html
Attributes
argument Argument list (dict of argument number and variable)
token Token in function implementation
tokenDef Token in function definition
name
type Constructor/CopyConstructor/MoveConstructor/OperatorEqual/Destructor/Function/Lambda/Unknown
hasVirtualSpecifier Is this function is virtual
isImplicitlyVirtual Is this function is virtual this in the base classes
access Public/Protected/Private
isInlineKeyword Is inline keyword used
isStatic Is this function static
isAttributeNoreturn
overriddenFunction
"""
#symboldatabase.cpp/SymbolDatabase::printXml
Id = None
argument = None
argumentId = None
token = None
tokenId = None
tokenDef = None
tokenDefId = None
name = None
type = None
access = None
isImplicitlyVirtual = None
hasVirtualSpecifier = None
isInlineKeyword = None
isStatic = None
isAttributeNoreturn = None
overriddenFunction = None
nestedIn = None
def __init__(self, element, nestedIn):
self.Id = element.get('id')
self.tokenId = element.get('token')
self.tokenDefId = element.get('tokenDef')
self.name = element.get('name')
self.type = element.get('type')
self.hasVirtualSpecifier = element.get('hasVirtualSpecifier', 'false') == 'true'
self.isImplicitlyVirtual = element.get('isImplicitlyVirtual', 'false') == 'true'
self.access = element.get('access')
self.isInlineKeyword = element.get('isInlineKeyword', 'false') == 'true'
self.isStatic = element.get('isStatic', 'false') == 'true'
self.isAttributeNoreturn = element.get('isAttributeNoreturn', 'false') == 'true'
self.overriddenFunction = element.get('overriddenFunction', 'false') == 'true'
self.nestedIn = nestedIn
self.argument = {}
self.argumentId = {}
def __repr__(self):
attrs = ["Id", "tokenId", "tokenDefId", "name", "type", "hasVirtualSpecifier",
"isImplicitlyVirtual", "access", "isInlineKeyword", "isStatic",
"isAttributeNoreturn", "overriddenFunction", "nestedIn", "argumentId"]
return "{}({})".format(
"Function",
", ".join(("{}={}".format(a, repr(getattr(self, a))) for a in attrs))
)
def setId(self, IdMap):
for argnr, argid in self.argumentId.items():
self.argument[argnr] = IdMap[argid]
self.token = IdMap.get(self.tokenId, None)
self.tokenDef = IdMap[self.tokenDefId]
#todo add class Types:
#symboldatabase.cpp/SymbolDatabase::printXml
class Variable:
"""
Information about a variable
C++ class:
https://cppcheck.sourceforge.io/devinfo/doxyoutput/classVariable.html
Attributes:
nameToken Name token in variable declaration
typeStartToken Start token of variable declaration
typeEndToken End token of variable declaration
access Global/Local/Namespace/Public/Protected/Public/Throw/Argument/Unknown
scope Variable scope
constness Variable constness (same encoding as ValueType::constness)
isArgument Is this variable a function argument?
isGlobal Is this variable a global variable?
isLocal Is this variable a local variable?
isArray Is this variable an array?
isClass Is this variable a class or struct?
isConst Is this variable a const variable?
isExtern Is this variable an extern variable?
isPointer Is this variable a pointer
isReference Is this variable a reference
isStatic Is this variable static?
isVolatile Is this variable volatile?
"""
#symboldatabase.cpp/SymbolDatabase::printXml
Id = None
nameTokenId = None
nameToken = None
typeStartTokenId = None
typeStartToken = None
typeEndTokenId = None
typeEndToken = None
access = None
scopeId = None
scope = None
isArgument = False
isArray = False
isClass = False
isConst = False
isExtern = False
isGlobal = False
isLocal = False
isPointer = False
isReference = False
isStatic = False
isVolatile = False
constness = 0
def __init__(self, element):
self.Id = element.get('id')
self.nameTokenId = element.get('nameToken')
self.nameToken = None
self.typeStartTokenId = element.get('typeStartToken')
self.typeStartToken = None
self.typeEndTokenId = element.get('typeEndToken')
self.typeEndToken = None
self.access = element.get('access')
self.isArgument = (self.access and self.access == 'Argument')
self.isGlobal = (self.access and self.access == 'Global')
self.isLocal = (self.access and self.access == 'Local')
self.scopeId = element.get('scope')
self.scope = None
self.constness = int(element.get('constness',0))
self.isArray = element.get('isArray') == 'true'
self.isClass = element.get('isClass') == 'true'
self.isConst = element.get('isConst') == 'true'
self.isExtern = element.get('isExtern') == 'true'
self.isPointer = element.get('isPointer') == 'true'
self.isReference = element.get('isReference') == 'true'
self.isStatic = element.get('isStatic') == 'true'
self.isVolatile = element.get('isVolatile') == 'true'
def __repr__(self):
attrs = ["Id", "nameTokenId", "typeStartTokenId", "typeEndTokenId",
"access", "scopeId", "isArgument", "isArray", "isClass",
"isConst", "isGlobal", "isExtern", "isLocal", "isPointer",
"isReference", "isStatic", "isVolatile", "constness"]
return "{}({})".format(
"Variable",
", ".join(("{}={}".format(a, repr(getattr(self, a))) for a in attrs))
)
def setId(self, IdMap):
self.nameToken = IdMap[self.nameTokenId]
self.typeStartToken = IdMap[self.typeStartTokenId]
self.typeEndToken = IdMap[self.typeEndTokenId]
self.scope = IdMap[self.scopeId]
class Container:
"""
Container class -- information about containers
Attributes:
array-like-index-op true/false
stdStringLike true/false
"""
#tokenizer.cpp/tokenizer::dump
Id = None
def __init__(self, element):
self.Id = element.get('id')
self.arrayLikeIndexOp = element.get('array-like-index-op') == 'true'
self.stdStringLike = element.get('std-string-like') == 'true'
class TypedefInfo:
"""
TypedefInfo class -- information about typedefs
Attributes:
name name of the typedef
used 0/1
"""
#tokenizer.cpp/tokenizer::dump
name = None
used = None
file = None
linenr = None
column = None
def __init__(self, element):
self.name = element.get('name')
_load_location(self, element)
self.used = (element.get('used') == '1')
class Value:
"""
Value class
Attributes:
intvalue integer value
tokvalue token value
floatvalue float value
movedvalue
uninit
containerSize container size
bufferSize buffer size
lifetimeScope Local/Argument/SubFunction/ThisPointer/ThisValue
lifetimeKind Object/SubObject/Lambda/Iterator/Address
symbolicDelta
condition condition where this Value comes from
bound Upper/Lower/Point
valueKind known/possible/impossible/inconclusive
path 0/1/2/3/..
"""
#token.cpp/token::printValueFlow
intvalue = None
tokvalue = None
floatvalue = None
containerSize = None
condition = None
valueKind = None
def isKnown(self):
return self.valueKind and self.valueKind == 'known'
def isPossible(self):
return self.valueKind and self.valueKind == 'possible'
def isImpossible(self):
return self.valueKind and self.valueKind == 'impossible'
def isInconclusive(self):
return self.valueKind and self.valueKind == 'inconclusive'
def __init__(self, element):
self.intvalue = element.get('intvalue')
if self.intvalue:
self.intvalue = int(self.intvalue)
self._tokvalueId = element.get('tokvalue')
self.floatvalue = element.get('floatvalue')
self.movedvalue = element.get('movedvalue')
self.uninit = element.get('uninit')
self.bufferSize = element.get('buffer-size')
self.containerSize = element.get('container-size')
self.iteratorStart = element.get('iterator-start')
self.iteratorEnd = element.get('iterator-end')
self._lifetimeId = element.get('lifetime')
self.lifetimeScope = element.get('lifetime-scope')
self.lifetimeKind = element.get('lifetime-kind')
self._symbolicId = element.get('symbolic')
self.symbolicDelta = element.get('symbolic-delta')
self.bound = element.get('bound')
self.condition = element.get('condition-line')
if self.condition:
self.condition = int(self.condition)
if element.get('known'):
self.valueKind = 'known'
elif element.get('possible'):
self.valueKind = 'possible'
elif element.get('impossible'):
self.valueKind = 'impossible'
elif element.get('inconclusive'):
self.valueKind = 'inconclusive'
self.path = element.get('path')
def setId(self, IdMap):
self.tokvalue = IdMap.get(self._tokvalueId)
self.lifetime = IdMap.get(self._lifetimeId)
self.symbolic = IdMap.get(self._symbolicId)
def __repr__(self):
attrs = ["intvalue", "tokvalue", "floatvalue", "movedvalue", "uninit",
"bufferSize", "containerSize", "condition", "valueKind"]
return "{}({})".format(
"Value",
", ".join(("{}={}".format(a, repr(getattr(self, a))) for a in attrs))
)
class ValueFlow:
"""
ValueFlow::Value class
Each possible value has a ValueFlow::Value item.
Each ValueFlow::Value either has a intvalue or tokvalue
C++ class:
https://cppcheck.sourceforge.io/devinfo/doxyoutput/classValueFlow_1_1Value.html
Attributes:
values Possible values
"""
Id = None
values = None
def __init__(self, element):
self.Id = element.get('id')
self.values = []
def __repr__(self):
attrs = ["Id", "values"]
return "{}({})".format(
"ValueFlow",
", ".join(("{}={}".format(a, repr(getattr(self, a))) for a in attrs))
)
class Suppression:
"""
Suppression class
This class contains a suppression entry to suppress a warning.
Attributes
errorId The id string of the error to suppress, can be a wildcard
fileName The name of the file to suppress warnings for, can include wildcards
lineNumber The number of the line to suppress warnings from, can be 0 to represent any line
symbolName The name of the symbol to match warnings for, can include wildcards
lineBegin The first line to suppress warnings from
lineEnd The last line to suppress warnings from
suppressionType The type of suppression which is applied (unique = None (default), file, block, blockBegin, blockEnd, macro)
"""
errorId = None
fileName = None
lineNumber = None
symbolName = None
lineBegin = None
lineEnd = None
suppressionType = None
def __init__(self, element):
self.errorId = element.get('errorId')
self.fileName = element.get('fileName')
self.lineNumber = element.get('lineNumber')
self.symbolName = element.get('symbolName')
self.lineBegin = element.get('lineBegin')
self.lineEnd = element.get('lineEnd')
self.suppressionType = element.get('type')
def __repr__(self):
attrs = ["errorId", "fileName", "lineNumber", "symbolName", "lineBegin", "lineEnd","suppressionType"]
return "{}({})".format(
"Suppression",
", ".join(("{}={}".format(a, repr(getattr(self, a))) for a in attrs))
)
def isMatch(self, file, line, message, errorId):
# Line Suppression
if ((self.fileName is None or fnmatch(file, self.fileName))
and (self.suppressionType is None) # Verify use of default suppression type (None = unique)
and (self.lineNumber is not None and int(line) == int(self.lineNumber))
and (self.symbolName is None or fnmatch(message, '*'+self.symbolName+'*'))
and fnmatch(errorId, self.errorId)):
return True
# File Suppression
if ((self.fileName is None or fnmatch(file, self.fileName))
and (self.suppressionType is not None and self.suppressionType == "file") # Verify use of file (global) suppression type
and (self.symbolName is None or fnmatch(message, '*'+self.symbolName+'*'))
and fnmatch(errorId, self.errorId)):
return True
# Block Suppression Mode
if ((self.fileName is None or fnmatch(file, self.fileName))
and (self.suppressionType is not None and self.suppressionType == "block") # Type for Block suppression
and (self.lineBegin is not None and int(line) > int(self.lineBegin)) # Code Match is between the Block suppression
and (self.lineEnd is not None and int(line) < int(self.lineEnd)) # Code Match is between the Block suppression
and (self.symbolName is None or fnmatch(message, '*'+self.symbolName+'*'))
and fnmatch(errorId, self.errorId)):
return True
# Other Suppression (Globaly set via suppression file or cli command)