Method _readHasteName

packager/src/node-haste/Module.js:218–229

* If a custom Haste implementation is provided, then we use it to determine * the actual Haste name instead of "@providesModule". * `enforceHasteNameMatches` has been added to that it is easier to * transition from a system using "@providesModule" to a system using another * custom syste

()

   * the "@providesModule" name (ex. "foo").
   */
  _readHasteName(): ?string {
    const hasteImpl = this._options.hasteImpl;
    if (hasteImpl == null) {
      return this._readHasteNameFromDocBlock();
    }
    const {enforceHasteNameMatches} = hasteImpl;
    if (enforceHasteNameMatches != null) {
      const name = this._readHasteNameFromDocBlock();
      enforceHasteNameMatches(this.path, name || undefined);
    }
    return hasteImpl.getHasteName(this.path);
  }

  /**
   * We extract the Haste name from the `@providesModule` docbloc field. This is