} finally {
      reachabilityFence(this);
    }
  }

  private <U extends @Nullable Object> ClosingFuture<U> derive(FluentFuture<U> future) {
    try {
      ClosingFuture<U> derived = new ClosingFuture<>(future);
      state.becomeSubsumedInto(derived.state.closeables);
      return derived;
    } finally {
      reachabilityFence(this);
    }
  }

pkg crypto/x509, type Certificate struct, MaxPathLenZero bool

# CL 158950043 database/sql: add Drivers, returning list of registered drivers, Russ Cox <******@****.***>
pkg database/sql, func Drivers() []string

# CL 117280043 debug/dwarf: fix Reader panic on DW_TAG_unspecified_type, Derek Parker <******@****.***>

	// Trace only metrics:
	scannerMetricScanFolder      // Scan a folder on disk, recursively.
	scannerMetricScanCycle       // Full cycle, cluster global
	scannerMetricScanBucketDrive // Single bucket on one drive
	scannerMetricCompactFolder   // Folder compacted.

	// Must be last:
	scannerMetricLast
)

// log scanner action.
// Use for s > scannerMetricStartTrace

	Checksums  map[string]string `json:"crc,omitempty" msg:"crc,omitempty"`   // Content Checksums
	Error      string            `json:"error,omitempty" msg:"err,omitempty"` // only set while reading part meta from drive.
}

// ChecksumInfo - carries checksums of individual scattered parts per disk.
type ChecksumInfo struct {
	PartNumber int
	Algorithm  BitrotAlgorithm
	Hash       []byte
}

        Field f = Smb2QueryDirectoryResponse.class.getDeclaredField("results");
        f.setAccessible(true);
        f.set(resp, results);
    }

    /**
     * Reflectively set the 'status' on a SMB2 response to drive control flow.
     */
    private static void setStatus(jcifs.internal.smb2.ServerMessageBlock2Response resp, int status) throws Exception {

Обычно они используются для указания уровней доступа, например:

* `users:read` или `users:write` — распространенные примеры.
* `instagram_basic` используется Facebook / Instagram.
* `https://www.googleapis.com/auth/drive` используется Google.

/// info | Дополнительная информация
В OAuth2 "scope" — это просто строка, которая указывает требуемое конкретное разрешение.

Örneğin bir "araba"yı veya bir "blog post"u tanımlayabilirsiniz.

Sonra o varlık için izinler ekleyebilirsiniz; örneğin (araba için) "drive" ya da (blog için) "edit".

欄位名稱是單數的 `scope`，但實際上是由多個以空白分隔的「scopes」組成的一長串字串。

每個「scope」就是一個（不含空白的）字串。

它們通常用來宣告特定的權限，例如：

- `users:read` 或 `users:write` 是常見的例子
- `instagram_basic` 用在 Facebook / Instagram
- `https://www.googleapis.com/auth/drive` 用在 Google

/// info

在 OAuth2 裡，「scope」只是用來宣告特定所需權限的一個字串。

不論裡面是否包含像 `:` 之類的字元，或是否是一個 URL，都沒差。

那些都是實作細節。

對 OAuth2 而言，它們就是字串而已。

///

 * implement subtleties of the API improperly.
 *
 * <p><b>Custom implementation</b>: Avoid implementing {@code ListenableFuture} from scratch. If you
 * can't get by with the standard implementations, prefer to derive a new {@code Future} instance
 * with the methods in {@link Futures} or, if necessary, to extend {@link AbstractFuture}.
 *
 * <p>Occasionally, an API will return a plain {@code Future} and it will be impossible to change

            }

            @Override
            public String toString() {
                return "Entry(" + name + ")";
            }
        };
    }

    // Controllable concrete subclass to drive behavior deterministically
    private static class TestIterator extends DirFileEntryEnumIteratorBase {
        private static FileEntry staticInitial;
        private static List<FileEntry[]> staticPages;