EvalSourceMapDevToolPlugin filename option is ignored

[logicbomb421]

Bug report

What is the current behavior?

I am attempting to use webpack.EvalSourceMapDevToolPlugin with the filename option (per the docs) to generate standalone source maps for a build artifact tool, but it appears the filename option is ignored, and all source maps are inlined with the generated bundles.

If the current behavior is a bug, please provide the steps to reproduce.

Create a simple webpack.config.js that uses webpack.EvalSourceMapDevToolPlugin with { filename: '[name].js.map' } as the options object. Run webpack, and examine the output files. Notice there are no *.js.map files generated.

Conversely, the same config using webpack.SourceMapDevToolPlugin does produce standalone .js.map files.

What is the expected behavior?

The filename option is not ignored in webpack.EvalSourceMapDevToolPlugin, and standalone source maps are generated.

Other relevant information:
webpack version: 4.39.0
Node.js version: 10.14.2
Operating System: macOS 10.15.4
Additional tools: N/A

Please let me know if I can provide any additional information. Thanks!

[alexander-akait]

EvalDevToolModulePlugin never have filename option https://github.com/webpack/webpack/blob/master/lib/EvalDevToolModulePlugin.js, we need fix docs

[anshumanv]

wip