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Better indication of where warnings happen

See original GitHub issue

Type of Issue

[ ] Bug Report
[x] Feature Request

Description

While running a build using ng-packagr different warnings can come up. Here is some examples:

Dropping unreachable code [0:1066,8]
Declarations in unreachable code! [0:1066,8]
Dropping unreachable code [0:1172,16]
Declarations in unreachable code! [0:1172,16]
Side effects in initialization of unused variable Vi [0:3321,37]

How To Reproduce

Just write some code which triggers some of those warnings and build it

Expected Behaviour

I don’t just see, that there are warnings, but I also get indications of where those warnings happen. In order to be able to fix them, I’d atleast need to know the file where they actually come up.

Version Information

ng-packagr:            3.0.0-rc.5
@angular/compiler:     6.0.2
rollup:                0.58.2
tsickle:               0.27.2
typescript:            2.7.2

Issue Analytics

State:
Created 5 years ago
Comments:6 (2 by maintainers)

Top GitHub Comments

3reactions

tobiasschweizercommented, Nov 12, 2018

@pfeigl Your solution worked for me, thanks a lot. But I had had to copy and paste it into node_modules/ng-packagr/lib/flatten/uglify.js of my project. What is the recommended way to configure this?

1reaction

abbazabactocommented, May 23, 2018

👍 for showing the filename (incl. line and col number) and the uglify warning originated from, maybe even with mention this is coming from uglify

with the commit from @pfeigl I was able to solve the warnings in no time

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