Post #681 review and grammar testing update #1473
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- dotnet#681 has been merged before completion to reduce the conversation & change complexity. This is a review of this PR changes now in draft-v8. Every change will be augmented by a comment in the new PR - Grammar testing, updates post dotnet#681 - Update tarball to v2.3.7 - Add sample “Expanded Interfaces”
Nigel-Ecma
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Nov 17, 2025
Nigel-Ecma
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Nov 17, 2025
Nigel-Ecma
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Nov 17, 2025
Nigel-Ecma
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Nov 17, 2025
Nigel-Ecma
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Nov 17, 2025
Nigel-Ecma
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Nov 17, 2025
Nigel-Ecma
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Nov 17, 2025
Nigel-Ecma
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Nov 17, 2025
Nigel-Ecma
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Nov 17, 2025
Nigel-Ecma
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Nov 17, 2025
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Closing & reopening to refresh tools |
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Reopening with refreshed tools… |
BillWagner
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Nov 17, 2025
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BillWagner
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This is good. I upvoted all the standard changes I agreed with, and added comments on the few others I had feedback on.
jskeet
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Nov 19, 2025
jnm2
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Nov 19, 2025
Nigel-Ecma
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Nov 20, 2025
| ### 19.6.5 Interface mapping | ||
| A class or struct shall provide implementations of all abstract members of the interfaces that are listed in the base class list of the class or struct. The process of locating implementations of interface members in an implementing class or struct is known as ***interface mapping***. | ||
| A class or struct shall provide implementations for all abstract members of the interfaces that are listed in the base class list of the class or struct which do not have a reachable implementation; where an implementation can become unreachable due to reabstraction [§19.4.3](interfaces.md#1943-interface-methods). The process of locating implementations of interface members in an implementing class or struct is known as ***interface mapping***. |
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As @BillWagner observed my first attempt to improve this didn’t cover reabstraction. Wordsmithing this in was a challenge, the reabstraction could be said to “hide” the existing implementation – but I don’t think we want to use word here. I settled on “(un)reachable” but maybe someone can do better? (@RexJaeschke?)
Same change made to line 1466 below
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Review: #681 has been merged before completion to reduce the conversation & change complexity. This is a review of this PR’s changes now in draft-v8. Every change will be augmented by a comment in this new PR
Grammar testing: Add sample “Expanded Interfaces” to cover #681 changes. Update tarball to v2.3.7
Review notes:
The changes to files in /standard should be read as “review suggestions” – as in the changes may, or may not, be accepted. Each one is commented.
Of all the other files the only one you may wish to read is /tools/GrammarTesting/Tests/Parsing/Samples/v8/Expanded Interfaces/sample.cs. This is the trivial sample added to check that all the new members of interfaces are parsed as expected.