How can I get current filename from rule.test in replace function?

[Zummer]

{
   test: /\.js$/,
   loader: 'string-replace-loader',
  options: {
      search: /__\w{6}\b/g,
      replace: function () {
          return `${current filename? or pathname?}`; // this.resourcePath ?
      },
  },

[Zummer]

where is this commit? I did not find it in project
69f4c49

[Va1]

@smartin85 's PR merged and released as v3.1.0. Replace function now has the context of the loader which allows for getting the filename beyond other things.