Method openSync

src/core/file_system.ts:491–533

(p: string, flag: FileFlag, mode: number)

    throw new ApiError(ErrorCode.ENOTSUP);
  }
  public openSync(p: string, flag: FileFlag, mode: number): File {
    // Check if the path exists, and is a file.
    let stats: Stats;
    try {
      stats = this.statSync(p, false);
    } catch (e) {
      // File does not exist.
      switch (flag.pathNotExistsAction()) {
        case ActionType.CREATE_FILE:
          // Ensure parent exists.
          const parentStats = this.statSync(path.dirname(p), false);
          if (!parentStats.isDirectory()) {
            throw ApiError.ENOTDIR(path.dirname(p));
          }
          return this.createFileSync(p, flag, mode);
        case ActionType.THROW_EXCEPTION:
          throw ApiError.ENOENT(p);
        default:
          throw new ApiError(ErrorCode.EINVAL, 'Invalid FileFlag object.');
      }
    }

    // File exists.
    if (stats.isDirectory()) {
      throw ApiError.EISDIR(p);
    }
    switch (flag.pathExistsAction()) {
      case ActionType.THROW_EXCEPTION:
        throw ApiError.EEXIST(p);
      case ActionType.TRUNCATE_FILE:
        // Delete file.
        this.unlinkSync(p);
        // Create file. Use the same mode as the old file.
        // Node itself modifies the ctime when this occurs, so this action
        // will preserve that behavior if the underlying file system
        // supports those properties.
        return this.createFileSync(p, flag, stats.mode);
      case ActionType.NOP:
        return this.openFileSync(p, flag, mode);
      default:
        throw new ApiError(ErrorCode.EINVAL, 'Invalid FileFlag object.');
    }
  }
  public unlink(p: string, cb: BFSOneArgCallback): void {
    cb(new ApiError(ErrorCode.ENOTSUP));
  }