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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/metro/src

Просмотр файла: DeltaBundler.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true,
});
exports.default = void 0;
var _DeltaCalculator = _interopRequireDefault(
  require("./DeltaBundler/DeltaCalculator"),
);
function _interopRequireDefault(e) {
  return e && e.__esModule ? e : { default: e };
}
class DeltaBundler {
  _deltaCalculators = new Map();
  constructor(changeEventSource) {
    this._changeEventSource = changeEventSource;
  }
  end() {
    this._deltaCalculators.forEach((deltaCalculator) => deltaCalculator.end());
    this._deltaCalculators = new Map();
  }
  async getDependencies(entryPoints, options) {
    const deltaCalculator = new _DeltaCalculator.default(
      new Set(entryPoints),
      this._changeEventSource,
      options,
    );
    await deltaCalculator.getDelta({
      reset: true,
      shallow: options.shallow,
    });
    const graph = deltaCalculator.getGraph();
    deltaCalculator.end();
    return graph.dependencies;
  }
  async buildGraph(entryPoints, options) {
    const deltaCalculator = new _DeltaCalculator.default(
      new Set(entryPoints),
      this._changeEventSource,
      options,
    );
    await deltaCalculator.getDelta({
      reset: true,
      shallow: options.shallow,
    });
    const graph = deltaCalculator.getGraph();
    this._deltaCalculators.set(graph, deltaCalculator);
    return graph;
  }
  async getDelta(graph, { reset, shallow }) {
    const deltaCalculator = this._deltaCalculators.get(graph);
    if (!deltaCalculator) {
      throw new Error("Graph not found");
    }
    return await deltaCalculator.getDelta({
      reset,
      shallow,
    });
  }
  listen(graph, callback) {
    const deltaCalculator = this._deltaCalculators.get(graph);
    if (!deltaCalculator) {
      throw new Error("Graph not found");
    }
    deltaCalculator.on("change", callback);
    return () => {
      deltaCalculator.removeListener("change", callback);
    };
  }
  endGraph(graph) {
    const deltaCalculator = this._deltaCalculators.get(graph);
    if (!deltaCalculator) {
      throw new Error("Graph not found");
    }
    deltaCalculator.end();
    this._deltaCalculators.delete(graph);
  }
}
exports.default = DeltaBundler;

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