AST generated by Libclang’s python binding unable to parse certain tokens in C++ source codes

Question

I am using Libclang’s python binding. I have basically two queries:

1. I want to know how can we parse library function which are neither defined by user nor f

Answer 1

You need to add the following argument

-x c++ -std=c++11

when calling parse, otherwise it defaults to parsing C code for .h files. You might rename the header file to .hpp

Here is what my helper script looks like.

from cindex import *
def get_cursor_from_file(filename,my_args=[]):
    index = Index.create()
    options = TranslationUnit.PARSE_DETAILED_PROCESSING_RECORD
    file_obj = index.parse(filename,args=my_args,options=options)
    for i in file_obj.diagnostics:
        print i
    return file_obj.cursor


x = get_cursor_from_file('test.cpp')

for c in x.get_children():
    print c.spelling

The source file I tested on looks like this

#include <vector>
using namespace std;
int main(){
 char* a=(char *)malloc(4);
 vector<int> color;

 vector<int> *color2=new vector<int>();
 color.push_back(1);
 color.push_back(2);
}

bool check(int **grid, vector<char> color){
    color.push_back('a');
}