Building with enhanced clang warnings indicated a large number of
instances with the warning:
`warning: zero as null pointer constant`
Recommended practice in C++11 is to use `nullptr` as value for
a NULL or empty pointer value. All instances where this warning
was encountered were corrected in this commit.
Where warning was encountered in dependency code (i.e. external library)
no chnages were made. Patching will be offered upstream.
- Encapsulate parameters passed through AST compiler functions in a struct
-> Reduces maintenance overhead when changing them
-> Contains parameter indicating if the file is C or C++
- Added eKeyword Token type (at the moment, only true for C++ keyword "delete", but should be set for other keywords as well)
- Implement createOnly mode in givenACodeSampleToTokenize so that only createTokens is called instead of tokenize
-> Ensures that no simplifications are done which could make the testing basic functions (like Token::Match) less accurate. We often don't need this simplifications in testtoken.cpp.
-> Ensures that no validation of the source is done (Fix#2104)
- reduced overhead of givenACodeSampleToTokenize: Don't store a std::istringstream instance, avoid creation of std::string when ctor is called
symboldatabase now recognises variables with arbitrarily many scopes.
Extracted method isVariableDeclaration()
Added unit tests for isVariableDeclaration in new file testsymboldatabase.cpp
Extracted givenACodeSampleToTokenize helper class into testutils.h to reduce duplication.
