node_modules/gulp-sass/node_modules/node-sass/src/libsass/src/expand.cpp
// process and add to last block on stack
process and add to last block on stack
process and add to last block on stack
inline void Expand::append_block(Block* b)
  {
    for (size_t i = 0, L = b->length(); i < L; ++i) {
      Statement* ith = (*b)[i]->perform(this);
      if (ith) *block_stack.back() << ith;
    }
  }
inline void Expand :: append_block ( Block * b ) { for ( size_t i = 0 , L = b -> length ( ) ; i < L ; ++ i ) { Statement * ith = ( * b ) [ i ] -> perform ( this ) ; if ( ith ) * block_stack . back ( ) << ith ; } }
process and add to last block on stack
process and add to last block on stack