731 lines
23 KiB
Python
Executable File
731 lines
23 KiB
Python
Executable File
"""
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cppcheckdata
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This is a Python module that helps you access Cppcheck dump data.
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License: No restrictions, use this as you need.
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"""
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import xml.etree.ElementTree as ET
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import argparse
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class Directive:
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"""
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Directive class. Contains information about each preprocessor directive in the source code.
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Attributes:
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str The directive line, with all C or C++ comments removed
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file Name of (possibly included) file where directive is defined
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linenr Line number in (possibly included) file where directive is defined
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To iterate through all directives use such code:
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@code
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data = cppcheckdata.parsedump(...)
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for cfg in data.configurations:
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for directive in cfg.directives:
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print(directive.str)
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@endcode
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"""
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str = None
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file = None
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linenr = None
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def __init__(self, element):
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self.str = element.get('str')
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self.file = element.get('file')
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self.linenr = element.get('linenr')
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class ValueType:
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"""
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ValueType class. Contains (promoted) type information for each node in the AST.
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"""
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type = None
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sign = None
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constness = 0
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pointer = 0
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typeScopeId = None
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typeScope = None
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originalTypeName = None
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def __init__(self, element):
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self.type = element.get('valueType-type')
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self.sign = element.get('valueType-sign')
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self.typeScopeId = element.get('valueType-typeScope')
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self.originalTypeName = element.get('valueType-originalTypeName')
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constness = element.get('valueType-constness')
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if constness:
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self.constness = int(constness)
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else:
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self.constness = 0
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pointer = element.get('valueType-pointer')
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if pointer:
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self.pointer = int(pointer)
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else:
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self.pointer = 0
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def setId(self, IdMap):
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self.typeScope = IdMap[self.typeScopeId]
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def isIntegral(self):
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return self.type in {'bool', 'char', 'short', 'int', 'long', 'long long'}
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def isFloat(self):
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return self.type in {'float', 'double', 'long double'}
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class Token:
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"""
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Token class. Contains information about each token in the source code.
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The CppcheckData.tokenlist is a list of Token items
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C++ class: http://cppcheck.net/devinfo/doxyoutput/classToken.html
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Attributes:
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str Token string
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next Next token in tokenlist. For last token, next is None.
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previous Previous token in tokenlist. For first token, previous is None.
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link Linked token in tokenlist. Each '(', '[' and '{' are linked to the
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corresponding '}', ']' and ')'. For templates, the '<' is linked to
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the corresponding '>'.
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scope Scope information for this token. See the Scope class.
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isName Is this token a symbol name
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isNumber Is this token a number, for example 123, 12.34
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isInt Is this token a int value such as 1234
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isFloat Is this token a int value such as 12.34
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isString Is this token a string literal such as "hello"
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strlen string length for string literal
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isChar Is this token a char literal such as 'x'
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isOp Is this token a operator
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isArithmeticalOp Is this token a arithmetic operator
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isAssignmentOp Is this token a assignment operator
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isComparisonOp Is this token a comparison operator
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isLogicalOp Is this token a logical operator: && ||
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isUnsigned Is this token a unsigned type
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isSigned Is this token a signed type
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varId varId for token, each variable has a unique non-zero id
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variable Variable information for this token. See the Variable class.
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function If this token points at a function call, this attribute has the Function
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information. See the Function class.
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values Possible values of token
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valueType type information
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typeScope type scope (token->type()->classScope)
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astParent ast parent
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astOperand1 ast operand1
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astOperand2 ast operand2
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file file name
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linenr line number
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To iterate through all tokens use such code:
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@code
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data = cppcheckdata.parsedump(...)
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for cfg in data.configurations:
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code = ''
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for token in cfg.tokenlist:
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code = code + token.str + ' '
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print(code)
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@endcode
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"""
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Id = None
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str = None
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next = None
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previous = None
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linkId = None
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link = None
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scopeId = None
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scope = None
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isName = False
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isNumber = False
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isInt = False
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isFloat = False
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isString = False
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strlen = None
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isChar = False
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isOp = False
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isArithmeticalOp = False
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isAssignmentOp = False
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isComparisonOp = False
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isLogicalOp = False
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isUnsigned = False
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isSigned = False
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varId = None
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variableId = None
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variable = None
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functionId = None
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function = None
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valuesId = None
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values = None
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valueType = None
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typeScopeId = None
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typeScope = None
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astParentId = None
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astParent = None
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astOperand1Id = None
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astOperand1 = None
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astOperand2Id = None
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astOperand2 = None
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file = None
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linenr = None
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def __init__(self, element):
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self.Id = element.get('id')
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self.str = element.get('str')
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self.next = None
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self.previous = None
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self.scopeId = element.get('scope')
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self.scope = None
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type = element.get('type')
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if type == 'name':
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self.isName = True
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if element.get('isUnsigned'):
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self.isUnsigned = True
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if element.get('isSigned'):
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self.isSigned = True
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elif type == 'number':
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self.isNumber = True
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if element.get('isInt'):
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self.isInt = True
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elif element.get('isFloat'):
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self.isFloat = True
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elif type == 'string':
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self.isString = True
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self.strlen = int(element.get('strlen'))
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elif type == 'char':
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self.isChar = True
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elif type == 'op':
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self.isOp = True
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if element.get('isArithmeticalOp'):
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self.isArithmeticalOp = True
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elif element.get('isAssignmentOp'):
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self.isAssignmentOp = True
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elif element.get('isComparisonOp'):
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self.isComparisonOp = True
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elif element.get('isLogicalOp'):
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self.isLogicalOp = True
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self.linkId = element.get('link')
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self.link = None
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self.varId = element.get('varId')
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self.variableId = element.get('variable')
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self.variable = None
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self.functionId = element.get('function')
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self.function = None
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self.valuesId = element.get('values')
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self.values = None
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if element.get('valueType-type'):
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self.valueType = ValueType(element)
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else:
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self.valueType = None
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self.typeScopeId = element.get('type-scope')
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self.typeScope = None
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self.astParentId = element.get('astParent')
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self.astParent = None
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self.astOperand1Id = element.get('astOperand1')
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self.astOperand1 = None
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self.astOperand2Id = element.get('astOperand2')
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self.astOperand2 = None
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self.file = element.get('file')
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self.linenr = element.get('linenr')
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def setId(self, IdMap):
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self.scope = IdMap[self.scopeId]
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self.link = IdMap[self.linkId]
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self.variable = IdMap[self.variableId]
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self.function = IdMap[self.functionId]
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self.values = IdMap[self.valuesId]
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self.typeScope = IdMap[self.typeScopeId]
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self.astParent = IdMap[self.astParentId]
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self.astOperand1 = IdMap[self.astOperand1Id]
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self.astOperand2 = IdMap[self.astOperand2Id]
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if self.valueType:
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self.valueType.setId(IdMap)
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def getValue(self, v):
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"""
|
|
Get value if it exists
|
|
Returns None if it doesn't exist
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"""
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if not self.values:
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return None
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for value in self.values:
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if value.intvalue == v:
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return value
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return None
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class Scope:
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"""
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Scope. Information about global scope, function scopes, class scopes, inner scopes, etc.
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C++ class: http://cppcheck.net/devinfo/doxyoutput/classScope.html
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Attributes
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classStart The { Token for this scope
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classEnd The } Token for this scope
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className Name of this scope.
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For a function scope, this is the function name;
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For a class scope, this is the class name.
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type Type of scope: Global, Function, Class, If, While
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"""
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Id = None
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classStartId = None
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classStart = None
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classEndId = None
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classEnd = None
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className = None
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nestedInId = None
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nestedIn = None
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type = None
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def __init__(self, element):
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self.Id = element.get('id')
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self.className = element.get('className')
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self.classStartId = element.get('classStart')
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self.classStart = None
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self.classEndId = element.get('classEnd')
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self.classEnd = None
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self.nestedInId = element.get('nestedIn')
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self.nestedIn = None
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self.type = element.get('type')
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def setId(self, IdMap):
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self.classStart = IdMap[self.classStartId]
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self.classEnd = IdMap[self.classEndId]
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self.nestedIn = IdMap[self.nestedInId]
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class Function:
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"""
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Information about a function
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C++ class:
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http://cppcheck.net/devinfo/doxyoutput/classFunction.html
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"""
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Id = None
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argument = None
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argumentId = None
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tokenDef = None
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tokenDefId = None
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name = None
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def __init__(self, element):
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self.Id = element.get('id')
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self.tokenDefId = element.get('tokenDef')
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self.name = element.get('name')
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self.argument = {}
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self.argumentId = {}
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for arg in element:
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self.argumentId[int(arg.get('nr'))] = arg.get('variable')
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|
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def setId(self, IdMap):
|
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for argnr, argid in self.argumentId.items():
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self.argument[argnr] = IdMap[argid]
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self.tokenDef = IdMap[self.tokenDefId]
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|
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class Variable:
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"""
|
|
Information about a variable
|
|
C++ class:
|
|
http://cppcheck.net/devinfo/doxyoutput/classVariable.html
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|
|
Attributes:
|
|
nameToken name token in variable declaration
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typeStartToken start token of variable declaration
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|
typeEndToken end token of variable declaration
|
|
isArgument Is this variable a function argument?
|
|
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?
|
|
isLocal Is this variable a local variable?
|
|
isPointer Is this variable a pointer
|
|
isReference Is this variable a reference
|
|
isStatic Is this variable static?
|
|
constness Variable constness (same encoding as ValueType::constness)
|
|
"""
|
|
|
|
Id = None
|
|
nameTokenId = None
|
|
nameToken = None
|
|
typeStartTokenId = None
|
|
typeStartToken = None
|
|
typeEndTokenId = None
|
|
typeEndToken = None
|
|
isArgument = False
|
|
isArray = False
|
|
isClass = False
|
|
isConst = False
|
|
isExtern = False
|
|
isLocal = False
|
|
isPointer = False
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isReference = False
|
|
isStatic = False
|
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constness = 0
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|
|
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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.isArgument = element.get('isArgument') == 'true'
|
|
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.isLocal = element.get('isLocal') == 'true'
|
|
self.isPointer = element.get('isPointer') == 'true'
|
|
self.isReference = element.get('isReference') == 'true'
|
|
self.isStatic = element.get('isStatic') == 'true'
|
|
self.constness = element.get('constness')
|
|
if self.constness:
|
|
self.constness = int(self.constness)
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|
|
def setId(self, IdMap):
|
|
self.nameToken = IdMap[self.nameTokenId]
|
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self.typeStartToken = IdMap[self.typeStartTokenId]
|
|
self.typeEndToken = IdMap[self.typeEndTokenId]
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|
|
|
|
|
class ValueFlow:
|
|
"""
|
|
ValueFlow::Value class
|
|
Each possible value has a ValueFlow::Value item.
|
|
Each ValueFlow::Value either has a intvalue or tokvalue
|
|
C++ class:
|
|
http://cppcheck.net/devinfo/doxyoutput/classValueFlow_1_1Value.html
|
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|
|
Attributes:
|
|
values Possible values
|
|
"""
|
|
|
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Id = None
|
|
values = None
|
|
|
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class Value:
|
|
"""
|
|
Value class
|
|
|
|
Attributes:
|
|
intvalue integer value
|
|
tokvalue token value
|
|
condition condition where this Value comes from
|
|
"""
|
|
|
|
intvalue = None
|
|
tokvalue = None
|
|
condition = None
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|
|
|
def __init__(self, element):
|
|
self.intvalue = element.get('intvalue')
|
|
if self.intvalue:
|
|
self.intvalue = int(self.intvalue)
|
|
self.tokvalue = element.get('tokvalue')
|
|
self.condition = element.get('condition-line')
|
|
if self.condition:
|
|
self.condition = int(self.condition)
|
|
|
|
def __init__(self, element):
|
|
self.Id = element.get('id')
|
|
self.values = []
|
|
for value in element:
|
|
self.values.append(ValueFlow.Value(value))
|
|
|
|
|
|
class Configuration:
|
|
"""
|
|
Configuration class
|
|
This class contains the directives, tokens, scopes, functions,
|
|
variables and value flows for one configuration.
|
|
|
|
Attributes:
|
|
name Name of the configuration, "" for default
|
|
directives List of Directive items
|
|
tokenlist List of Token items
|
|
scopes List of Scope items
|
|
functions List of Function items
|
|
variables List of Variable items
|
|
valueflow List of ValueFlow values
|
|
"""
|
|
|
|
name = ''
|
|
directives = []
|
|
tokenlist = []
|
|
scopes = []
|
|
functions = []
|
|
variables = []
|
|
valueflow = []
|
|
|
|
def __init__(self, confignode):
|
|
self.name = confignode.get('cfg')
|
|
self.directives = []
|
|
self.tokenlist = []
|
|
self.scopes = []
|
|
self.functions = []
|
|
self.variables = []
|
|
self.valueflow = []
|
|
arguments = []
|
|
|
|
for element in confignode:
|
|
if element.tag == 'directivelist':
|
|
for directive in element:
|
|
self.directives.append(Directive(directive))
|
|
|
|
if element.tag == 'tokenlist':
|
|
for token in element:
|
|
self.tokenlist.append(Token(token))
|
|
|
|
# set next/previous..
|
|
prev = None
|
|
for token in self.tokenlist:
|
|
token.previous = prev
|
|
if prev:
|
|
prev.next = token
|
|
prev = token
|
|
if element.tag == 'scopes':
|
|
for scope in element:
|
|
self.scopes.append(Scope(scope))
|
|
for functionList in scope:
|
|
if functionList.tag == 'functionList':
|
|
for function in functionList:
|
|
self.functions.append(Function(function))
|
|
if element.tag == 'variables':
|
|
for variable in element:
|
|
var = Variable(variable)
|
|
if var.nameToken:
|
|
self.variables.append(var)
|
|
else:
|
|
arguments.append(var)
|
|
if element.tag == 'valueflow':
|
|
for values in element:
|
|
self.valueflow.append(ValueFlow(values))
|
|
|
|
IdMap = {None: None, '0': None, '00000000': None, '0000000000000000': None}
|
|
for token in self.tokenlist:
|
|
IdMap[token.Id] = token
|
|
for scope in self.scopes:
|
|
IdMap[scope.Id] = scope
|
|
for function in self.functions:
|
|
IdMap[function.Id] = function
|
|
for variable in self.variables:
|
|
IdMap[variable.Id] = variable
|
|
for variable in arguments:
|
|
IdMap[variable.Id] = variable
|
|
for values in self.valueflow:
|
|
IdMap[values.Id] = values.values
|
|
|
|
for token in self.tokenlist:
|
|
token.setId(IdMap)
|
|
for scope in self.scopes:
|
|
scope.setId(IdMap)
|
|
for function in self.functions:
|
|
function.setId(IdMap)
|
|
for variable in self.variables:
|
|
variable.setId(IdMap)
|
|
for variable in arguments:
|
|
variable.setId(IdMap)
|
|
|
|
|
|
class Platform:
|
|
"""
|
|
Platform class
|
|
This class contains type sizes
|
|
|
|
Attributes:
|
|
name Name of the platform
|
|
char_bit CHAR_BIT value
|
|
short_bit SHORT_BIT value
|
|
int_bit INT_BIT value
|
|
long_bit LONG_BIT value
|
|
long_long_bit LONG_LONG_BIT value
|
|
pointer_bit POINTER_BIT value
|
|
"""
|
|
|
|
name = ''
|
|
char_bit = 0
|
|
short_bit = 0
|
|
int_bit = 0
|
|
long_bit = 0
|
|
long_long_bit = 0
|
|
pointer_bit = 0
|
|
|
|
def __init__(self, platformnode):
|
|
self.name = platformnode.get('name')
|
|
self.char_bit = int(platformnode.get('char_bit'))
|
|
self.short_bit = int(platformnode.get('short_bit'))
|
|
self.int_bit = int(platformnode.get('int_bit'))
|
|
self.long_bit = int(platformnode.get('long_bit'))
|
|
self.long_long_bit = int(platformnode.get('long_long_bit'))
|
|
self.pointer_bit = int(platformnode.get('pointer_bit'))
|
|
|
|
|
|
class CppcheckData:
|
|
"""
|
|
Class that makes cppcheck dump data available
|
|
Contains a list of Configuration instances
|
|
|
|
Attributes:
|
|
configurations List of Configurations
|
|
|
|
To iterate through all configurations use such code:
|
|
@code
|
|
data = cppcheckdata.parsedump(...)
|
|
for cfg in data.configurations:
|
|
print('cfg: ' + cfg.name)
|
|
@endcode
|
|
|
|
To iterate through all tokens in each configuration use such code:
|
|
@code
|
|
data = cppcheckdata.parsedump(...)
|
|
for cfg in data.configurations:
|
|
print('cfg: ' + cfg.name)
|
|
code = ''
|
|
for token in cfg.tokenlist:
|
|
code = code + token.str + ' '
|
|
print(' ' + code)
|
|
@endcode
|
|
|
|
To iterate through all scopes (functions, types, etc) use such code:
|
|
@code
|
|
data = cppcheckdata.parsedump(...)
|
|
for cfg in data.configurations:
|
|
print('cfg: ' + cfg.name)
|
|
for scope in cfg.scopes:
|
|
print(' type:' + scope.type + ' name:' + scope.className)
|
|
@endcode
|
|
"""
|
|
|
|
rawTokens = []
|
|
platform = None
|
|
configurations = []
|
|
|
|
def __init__(self, filename):
|
|
self.configurations = []
|
|
|
|
data = ET.parse(filename)
|
|
|
|
for platformNode in data.getroot():
|
|
if platformNode.tag == 'platform':
|
|
self.platform = Platform(platformNode)
|
|
|
|
for rawTokensNode in data.getroot():
|
|
if rawTokensNode.tag != 'rawtokens':
|
|
continue
|
|
files = []
|
|
for node in rawTokensNode:
|
|
if node.tag == 'file':
|
|
files.append(node.get('name'))
|
|
elif node.tag == 'tok':
|
|
tok = Token(node)
|
|
tok.file = files[int(node.get('fileIndex'))]
|
|
self.rawTokens.append(tok)
|
|
for i in range(len(self.rawTokens) - 1):
|
|
self.rawTokens[i + 1].previous = self.rawTokens[i]
|
|
self.rawTokens[i].next = self.rawTokens[i + 1]
|
|
|
|
# root is 'dumps' node, each config has its own 'dump' subnode.
|
|
for cfgnode in data.getroot():
|
|
if cfgnode.tag == 'dump':
|
|
self.configurations.append(Configuration(cfgnode))
|
|
|
|
|
|
def parsedump(filename):
|
|
"""
|
|
parse a cppcheck dump file
|
|
"""
|
|
return CppcheckData(filename)
|
|
|
|
|
|
def astIsFloat(token):
|
|
"""
|
|
Check if type of ast node is float/double
|
|
"""
|
|
|
|
if not token:
|
|
return False
|
|
if token.str == '.':
|
|
return astIsFloat(token.astOperand2)
|
|
if token.str in '+-*/%':
|
|
return astIsFloat(token.astOperand1) or astIsFloat(token.astOperand2)
|
|
if not token.variable:
|
|
# float literal?
|
|
if token.str[0].isdigit():
|
|
for c in token.str:
|
|
if c == 'f' or c == '.' or c == 'E':
|
|
return True
|
|
return False
|
|
typeToken = token.variable.typeStartToken
|
|
endToken = token.variable.typeEndToken
|
|
while typeToken != endToken:
|
|
if typeToken.str == 'float' or typeToken.str == 'double':
|
|
return True
|
|
typeToken = typeToken.next
|
|
if typeToken.str == 'float' or typeToken.str == 'double':
|
|
return True
|
|
return False
|
|
|
|
|
|
class CppCheckFormatter(argparse.HelpFormatter):
|
|
"""
|
|
Properly formats multiline argument helps
|
|
"""
|
|
def _split_lines(self, text, width):
|
|
# this is the RawTextHelpFormatter._split_lines
|
|
if text.startswith('R|'):
|
|
return text[2:].splitlines()
|
|
return argparse.HelpFormatter._split_lines(self, text, width)
|
|
|
|
|
|
def ArgumentParser():
|
|
"""
|
|
Returns an argparse argument parser with an already-added
|
|
argument definition for -t/--template
|
|
"""
|
|
parser = argparse.ArgumentParser(formatter_class=CppCheckFormatter)
|
|
parser.add_argument('-t', '--template', metavar='<text>',
|
|
default='{callstack}: ({severity}) {message}',
|
|
help="R|Format the error messages. E.g.\n"
|
|
"'{file}:{line},{severity},{id},{message}' or\n"
|
|
"'{file}({line}):({severity}) {message}' or\n"
|
|
"'{callstack} {message}'\n"
|
|
"Pre-defined templates: gcc, vs, edit")
|
|
return parser
|
|
|
|
|
|
def reportError(template, callstack=(), severity='', message='', id=''):
|
|
"""
|
|
Format an error message according to the template.
|
|
|
|
:param template: format string, or 'gcc', 'vs' or 'edit'.
|
|
:param callstack: e.g. [['file1.cpp',10],['file2.h','20'], ... ]
|
|
:param severity: e.g. 'error', 'warning' ...
|
|
:param id: message ID.
|
|
:param message: message text.
|
|
"""
|
|
# expand predefined templates
|
|
if template == 'gcc':
|
|
template = '{file}:{line}: {severity}: {message}'
|
|
elif template == 'vs':
|
|
template = '{file}({line}): {severity}: {message}'
|
|
elif template == 'edit':
|
|
template = '{file} +{line}: {severity}: {message}'
|
|
# compute 'callstack}, {file} and {line} replacements
|
|
stack = ' -> '.join('[' + f + ':' + str(l) + ']' for (f, l) in callstack)
|
|
file = callstack[-1][0]
|
|
line = str(callstack[-1][1])
|
|
# format message
|
|
return template.format(callstack=stack, file=file, line=line,
|
|
severity=severity, message=message, id=id)
|