remove-defineproperty-webpack-plugin/lib/HarmonyCompatibilityDependency.js

remove defineproperty for IE8 compatible.

/*
  MIT License http://www.opensource.org/licenses/mit-license.php
  Author Tobias Koppers @sokra
  */
"use strict";

const NullDependency = require("webpack/lib/dependencies/NullDependency");

class HarmonyCompatibilityDependency extends NullDependency {
  constructor(originModule) {
    super();
    this.originModule = originModule;
  }

  get type() {
    return "harmony export header";
  }
}

HarmonyCompatibilityDependency.Template = class HarmonyExportDependencyTemplate {
  apply(dep, source) {
    const usedExports = dep.originModule.usedExports;
    if(usedExports && !Array.isArray(usedExports)) {
      const exportName = dep.originModule.exportsArgument || "exports";
      const content = `${exportName}["__esModule"] = true;\n`;
      source.insert(-10, content);
    }
  }
};

module.exports = HarmonyCompatibilityDependency;