}, MakeBucketOptions{
			VersioningEnabled: true,
		})
	})
}

// ExecExtendedObjectLayerTest will execute the tests with combinations of encrypted & compressed.
// This can be used to test functionality when reading and writing data.
func ExecExtendedObjectLayerTest(t *testing.T, objTest objTestType) {
	execExtended(t, func(t *testing.T, init func(), bucketOptions MakeBucketOptions) {

is an instance of AES using a particular key. // It is safe for concurrent use. type Block struct { block } // blockExpanded is the block type used for all architectures except s390x, // which feeds the raw key directly to its instructions. type blockExpanded struct { rounds int // Round keys, where only the first (rounds + 1) × (128 ÷ 32) words are used. enc [60]uint32 dec [60]uint32 } const ( // AES-128 has 128-bit keys, 10 rounds, and uses 11 128-bit round keys // (11×128÷32 = 44 32-bit words)....

   * a hotspot optimizer bug, which should be fixed, but that's a separate, big project).
   *
   * The coding pattern above is heavily used in java.util, e.g. in ArrayList. There is a
   * RangeCheckMicroBenchmark in the JDK that was used to test this.
   *
   * But the methods in this class want to throw different exceptions, depending on the args, so it

     * While the current implementation returns `this`, that's not something we mean to guarantee.
     * Anyway, the purpose of this method is to implement a BinaryOperator combiner for a Collector,
     * so its return value will get used naturally.
     */
    @SuppressWarnings("CanIgnoreReturnValueSuggester")
    Builder<K, V> combine(ImmutableSortedMap.Builder<K, V> other) {
      ensureCapacity(size + other.size);

	if z.rebalMeta == nil || !z.rebalMeta.StoppedAt.IsZero() { // rebalance not running, nothing to do
		z.rebalMu.Unlock()
		return
	}
	ctx, cancel := context.WithCancel(GlobalContext)
	z.rebalCancel = cancel // to be used when rebalance-stop is called
	z.rebalMu.Unlock()

	z.rebalMu.RLock()
	participants := make([]bool, len(z.rebalMeta.PoolStats))
	for i, ps := range z.rebalMeta.PoolStats {

 *       doing something and finally closing the stream that was opened.
 * </ul>
 *
 * <p><b>Note:</b> In general, {@code ByteSource} is intended to be used for "file-like" sources
 * that provide streams that are:
 *
 * <ul>
 *   <li><b>Finite:</b> Many operations, such as {@link #size()} and {@link #read()}, will either

           * up using the entries array directly and writing over the entry objects with
           * non-terminal entries, but this is safe; if this Builder is used further, it will grow
           * the entries array (so it can't affect the original array), and future build() calls
           * will always copy any entry objects that cannot be safely reused.
           */

            return "gzip";
        }

        @Override
        public InputStream getInputStream() throws IOException {
            throw new IOException("Error stream should be used for status " + statusCode);
        }

        @Override
        public InputStream getErrorStream() {
            return new ByteArrayInputStream(gzippedData);
        }

        @Override

在长时间寻找与测试多种替代之后，APIStar 是当时最好的选择。

随后 APIStar 不再作为服务器存在，而 Starlette 出现，成为实现该体系的更佳基础。这成为构建 **FastAPI** 的最终灵感来源。

我把 **FastAPI** 视为 APIStar 的“精神续作”，并在此基础上，结合前述工具的经验，改进并增强了功能、类型系统及其他各方面。

///

## **FastAPI** 所使用的组件 { #used-by-fastapi }

### [Pydantic](https://docs.pydantic.dev/) { #pydantic }

Pydantic 是一个基于 Python 类型提示来定义数据校验、序列化与文档（使用 JSON Schema）的库。

这使得它极其直观。

   * the returned list is unspecified.
   *
   * <p>The returned list may have unexpected behavior if it contains {@code NaN}, or if {@code NaN}
   * is used as a parameter to any of its methods.
   *
   * <p>The returned list is serializable.
   *
   * @param backingArray the array to back the list
   * @return a list view of the array
   */