How get and output description of VarDecl in clang?

Question

I'm writing OCLint rule based on VisitBlockDecl using clang. How can I output to console value of VarDecl *var variable?

static SmallVector<VarDecl *, 4> blockVars;

for (int i=0; i < blockVars.size(); i++) {
   VarDecl *var = blockVars[i];
}