Can't access this.options.file in functions

[duzun]

I'm using node-sass in a project and am considering to migrate to dart-sass, but have a compatibility issue.

In node-sass docs there is this note:

...
 // this.options contains this options hash, this.callback contains the node-style callback

this.options is also available in functions and I rely on this.options.file for proper routing of url(path) in SASS files.

When using dart-sass the this object is the global scope :(

[duzun]

Thank you!