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Add support for IServiceProviderIsService #54047

Merged
merged 6 commits into from
Jun 11, 2021
Merged

Add support for IServiceProviderIsService #54047

merged 6 commits into from
Jun 11, 2021

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davidfowl
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  • This optional service lets consumers query to see if a service is resolvable without side effects (not having to explicitly resolve the service).
  • Added new spec tests to verify the baseline behavior based on IServiceCollection features.

Fixes #53919

@davidfowl
Add support for IServiceProviderIsService
754dd34 
- This optional service lets consumers query to see if a service is resolvable without side effects (not having to explicitly resolve the service).
- Added new spec tests to verify the baseline behavior based on IServiceCollection features.
@davidfowl davidfowl requested a review from pakrym June 11, 2021 05:08
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Note regarding the new-api-needs-documentation label:

This serves as a reminder for when your PR is modifying a ref *.cs file and adding/modifying public APIs, to please make sure the API implementation in the src *.cs file is documented with triple slash comments, so the PR reviewers can sign off that change.

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ghost commented Jun 11, 2021

Tagging subscribers to this area: @eerhardt, @maryamariyan
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Issue Details
  • This optional service lets consumers query to see if a service is resolvable without side effects (not having to explicitly resolve the service).
  • Added new spec tests to verify the baseline behavior based on IServiceCollection features.

Fixes #53919

Author: davidfowl
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area-Extensions-DependencyInjection, new-api-needs-documentation
Milestone: -

@davidfowl @tillig
Update src/libraries/Microsoft.Extensions.DependencyInjection.Abstrac…
b556a0e 
…tions/src/IServiceProviderIsService.cs

Co-authored-by: Travis Illig <[email protected]>
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pakrym commented Jun 11, 2021 •
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Can you put Debug.Assert(CanGetService(type)) into GetService implementation and run the test suit with that? Make sure we didn't miss anything. And maybe keep it long-term.

@davidfowl
Handle built in services as part of IsServce
6aeff37 
- Special case built in services as part of the IsService check
- Added a test case
halter73
halter73 approved these changes Jun 11, 2021
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I think I agree with @pakrym that we should put this in DependencyInjectionSpecificationTests with SupportsIsService true by default for greater discoverability when third-party containers update their Specification.Tests dependency.

@davidfowl
PR feedback
8f7d3ec 
- Make the tests part of the core DI tests and enable skipping via a property
@davidfowl
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I think I agree with @pakrym that we should put this in DependencyInjectionSpecificationTests with SupportsIsService true by default for greater discoverability when third-party containers update their Specification.Tests dependency.

Done!

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Errors as unrelated, Merging.

@davidfowl davidfowl merged commit c14ac48 into main Jun 11, 2021
@BrennanConroy BrennanConroy deleted the davidfowl/serviceprovider-isservice branch June 11, 2021 22:39
@ghost ghost locked as resolved and limited conversation to collaborators Jul 11, 2021
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@tillig tillig tillig left review comments

@stephentoub stephentoub stephentoub left review comments

@alistairjevans alistairjevans alistairjevans left review comments

@halter73 halter73 halter73 approved these changes

@pakrym pakrym pakrym approved these changes

@maryamariyan maryamariyan maryamariyan approved these changes

@eerhardt eerhardt Awaiting requested review from eerhardt

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Add ability to detect if a service is registered in the DI container
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@davidfowl @pakrym @halter73 @tillig @stephentoub @maryamariyan @alistairjevans