Can I disable noUnusedLocals, noUnusedParameters per file

[seangwright]

TypeScript Version: 2.0.10

After reading about the deprecation of no-unused-variable in tslint v4 I started using noUnusedLocals and noUnusedParameters in my tsconfig.json.

With tslint I can disable a rule for a file or line

/* tslint:disable:no-unused-variable */
// tslint:disable-next-line

Is this disabling possible if Typescript is performing the checks?

Here is a stackoverflow question related to this http://stackoverflow.com/questions/38237594/pragma-disable-for-nounusedlocals

Thanks

[RyanCavanaugh]

No. See also #11051

[thw0rted]

So uh, would a feature request for this capability be a new ticket then? As I just commented on #11051, I'm working with generated TS (transpiled from Java with jsweet) and I'm not sure they will be able to totally avoid generating unused / unreferenced vars.

[ghost]

@thw0rted I'm in a similar situation with another TypeScript generator but I think #11051 has the solution. If I rename the generated type file to *.d.ts it is ignored during noUnusedLocals and noUnusedParameters. Unfortunately the generator refuses to generate anything other than a .ts extension, so I have to rename at another point in my build process, but it works.

[thw0rted]

I don't think that's going to help me, I'm not generating typings but actual implementations, and .d.ts is always an ambient context (right?).

This is a frustrating issue, because it's a basic feature that just about every other tool I can think of includes. If you're going to warn me about something that doesn't impact program execution (like noUnusedParameters etc) then, on a case-by-case basis, I need to be able to tell the tool that I know better and in this one specific instance, it's correct, even though you think it might be a problem.

[RyanCavanaugh]

@thw0rted // @ts-ignore

[thw0rted]

That's a good point -- if it's too much to ask the generator to never create an unused local, maybe we can at least identify the cases where the local might be unused and give them an ignore directive preemptively.