TypeError: Class constructor debugInfo cannot be invoked without 'new'

[eight04]

less.js/packages/less/src/less/tree/ruleset.js

Line 501 in dc3a310

debugInfo = getDebugInfo(context, this, tabSetStr);

less.js/packages/less/src/less/tree/debug-info.js

Line 1 in dc3a310

class debugInfo {

Found this issue when trying to use less from the source. This works in dist because the class is compiled into a function.

[matthew-dean]

I remember finding the same when trying to convert to TypeScript. I'm not sure what the resolution should be / was though.

[drdevlin]

Is there a reason that debugInfo is defined as a class? I think defining it as a function would resolve the issue. I have refactored it to a function locally and there's no regression (that is, all existing tests pass). If all this sounds right, I'm happy to make a PR. (This is literally my first comment on GitHub and would be my first PR.)