Function luaK_storevar

third-party/lua-5.5.0/src/lcode.c:1105–1140

** Generate code to store result of expression 'ex' into variable 'var'. */

** Generate code to store result of expression 'ex' into variable 'var'.
*/
void luaK_storevar (FuncState *fs, expdesc *var, expdesc *ex) {
  switch (var->k) {
    case VLOCAL: {
      freeexp(fs, ex);
      exp2reg(fs, ex, var->u.var.ridx);  /* compute 'ex' into proper place */
      return;
    }
    case VUPVAL: {
      int e = luaK_exp2anyreg(fs, ex);
      luaK_codeABC(fs, OP_SETUPVAL, e, var->u.info, 0);
      break;
    }
    case VINDEXUP: {
      codeABRK(fs, OP_SETTABUP, var->u.ind.t, var->u.ind.idx, ex);
      break;
    }
    case VINDEXI: {
      codeABRK(fs, OP_SETI, var->u.ind.t, var->u.ind.idx, ex);
      break;
    }
    case VINDEXSTR: {
      codeABRK(fs, OP_SETFIELD, var->u.ind.t, var->u.ind.idx, ex);
      break;
    }
    case VVARGIND: {
      needvatab(fs->f);  /* function will need a vararg table */
      /* now, assignment is to a regular table */
    }  /* FALLTHROUGH */
    case VINDEXED: {
      codeABRK(fs, OP_SETTABLE, var->u.ind.t, var->u.ind.idx, ex);
      break;
    }
    default: lua_assert(0);  /* invalid var kind to store */
  }
  freeexp(fs, ex);
}


/*