Function luaK_patchclose

depends/lua/src/lcode.c:278–286

** Path all jumps in 'list' to close upvalues up to given 'level' ** (The assertion checks that jumps either were closing nothing ** or were closing higher levels, from inner blocks.) */

** or were closing higher levels, from inner blocks.)
*/
void luaK_patchclose (FuncState *fs, int list, int level) {
  level++;  /* argument is +1 to reserve 0 as non-op */
  for (; list != NO_JUMP; list = getjump(fs, list)) {
    lua_assert(GET_OPCODE(fs->f->code[list]) == OP_JMP &&
                (GETARG_A(fs->f->code[list]) == 0 ||
                 GETARG_A(fs->f->code[list]) >= level));
    SETARG_A(fs->f->code[list], level);
  }
}


/*