outer_loop标记语句报错：Git推送流水线出现Unexpected labeled statement错误

推送代码至Git时流水线报错：outer_loop标签处提示“Unexpected labeled statement”，问题代码如下：

outer_loop:
while ((c = nextPixel()) != EOF) {
  fcode = (c << BITS) + ent;
  i = (c << hshift) ^ ent;
  if (htab[i] === fcode) {
    ent = codetab[i];
    continue;
  } else if (htab[i] >= 0) {
    disp = hsize_reg - i;
    if (i === 0) disp = 1;
    do {
      if ((i -= disp) < 0) i += hsize_reg;
      if (htab[i] === fcode) {
        ent = codetab[i];
        continue outer_loop;
      }
    } while (htab[i] >= 0);

  }
  output(ent, outs);
  ent = c;
  if (free_ent < 1 << BITS) {
    codetab[i] = free_ent++;
    htab[i] = fcode;
  } else {
    cl_block(outs);
  }
}

错误原因 #

标签语句（如outer_loop）在当前代码环境中不被允许，可能是启用了严格模式、代码检查工具（如ESLint）禁用了标签，或是语法规范限制导致。

修正方法 #

推荐通过重构逻辑移除标签，用布尔标志替代跳转，既符合语法规范也提升代码可读性：

let continueOuter = false;
while ((c = nextPixel()) != EOF) {
  // 检查是否需要跳转到外层循环开头
  if (continueOuter) {
    continueOuter = false;
    continue;
  }

  fcode = (c << BITS) + ent;
  i = (c << hshift) ^ ent;

  if (htab[i] === fcode) {
    ent = codetab[i];
    continue;
  } else if (htab[i] >= 0) {
    disp = hsize_reg - i;
    if (i === 0) disp = 1;
    
    do {
      if ((i -= disp) < 0) i += hsize_reg;
      if (htab[i] === fcode) {
        ent = codetab[i];
        continueOuter = true;
        break; // 跳出内层循环
      }
    } while (htab[i] >= 0);

    // 若标记为跳转外层，直接进入下一轮外层循环
    if (continueOuter) continue;
  }

  output(ent, outs);
  ent = c;
  if (free_ent < 1 << BITS) {
    codetab[i] = free_ent++;
    htab[i] = fcode;
  } else {
    cl_block(outs);
  }
}

也可以尝试关闭代码检查工具的标签禁用规则（如ESLint的no-labels）或关闭严格模式，但这种方式不推荐，会降低代码安全性和可读性。

内容的提问来源于stack exchange，提问作者Celal Poyraz