Use Symbol as DI token

[soanvig]

I'm submitting a...

[ ] Regression 
[ ] Bug report
[x] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

@Module decorator's exports parameter expects string or other various types. It doesn't support Symbol (which is recommended for DI token e.g. by Inversify - it also makes perfect sense to use Symbol).

For now Symbol worked as DI token for me, until I decided to export it.

Expected behavior

Symbol can be used everywhere as DI token.

What is the motivation / use case for changing the behavior?

It would be very nice to use Symbol for token, because that's what token is ideological.

[soanvig]

I misunderstood export. It does not export by dependcy token, but by provider as whole (so whole object with provide and useClass fields)

[kamilmysliwiec]

It does not export by dependcy token, but by provider as whole

It should be compatible with just token as well (this approach is supported with strings for example). I'll take care of it, thanks for reporting!

[kamilmysliwiec]

Fixed in 5.3.12

[lock]

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