text: "use strict"; function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }Object.defineProperty(exports, "__esModule", {value: true});var _tokenizer = require('../parser/tokenizer');
  var _types = require('../parser/tokenizer/types');
  
  
  
  
  
  
  
   const EMPTY_DECLARATION_INFO = {
    typeDeclarations: new Set(),
    valueDeclarations: new Set(),
  }; exports.EMPTY_DECLARATION_INFO = EMPTY_DECLARATION_INFO;
  
  /**
   * Get all top-level identifiers that should be preserved when exported in TypeScript.
   *
   * Examples:
   * - If an identifier is declared as `const x`, then `export {x}` should be preserved.
   * - If it's declared as `type x`, then `export {x}` should be removed.
   * - If it's declared as both `const x` and `type x`, then the export should be preserved.
   * - Classes and enums should be preserved (even though they also introduce types).
   * - Imported identifiers should be preserved since we don't have enough information to
   *   rule them out. --isolatedModules disallows re-exports, which catches errors here.
   */
   function getDeclarationInfo(tokens) {
    const typeDeclarations = new Set();
    const valueDeclarations = new Set();
    for (let i = 0; i < tokens.tokens.length; i++) {
      const token = tokens.tokens[i];
      if (token.type === _types.TokenType.name && _tokenizer.isTopLevelDeclaration.call(void 0, token)) {
        if (token.isType) {
          typeDeclarations.add(tokens.identifierNameForToken(token));
        } else {
          valueDeclarations.add(tokens.identifierNameForToken(token));
        }
      }
    }
    return {typeDeclarations, valueDeclarations};
  } exports.default = getDeclarationInfo;
  