P3451 R0 A Suggestion for Reflection Access Control

[wg21bot]

P3451R0 A Suggestion for Reflection Access Control (Barry Revzin)

[hanickadot]

We discussed group of papers about accessibility together in Wrocław:

P3437R0 Proposed default principles: Reflect C++, Generate C++ (github)
P3451R0 A Suggestion for Reflection Access Control (github)
P3473R0 Splicing Should Respect Access Control (github)
P3493R0 Ruminations on reflection and access (late paper, no github yet)

And we took these pools:

SG7: P2996 should allow access to private and protected members as currently is (for both reflection by member interspection and splicing).

SF	F	N	A	SA
4	13	4	1	5

Result: Consensus

SG7: We encourage work towards ability to query accessible members based on provided context (as a high-priority change for C++26)

SF	F	N	A	SA
11	9	6	1	0

Result: Strong consensus

SG7: Adopt "as-if source code read/written by the human programmer" as SG7 guidance for default reflection and generation semantics.

SF	F	N	A	SA
4	11	8	3	0

Result: Consensus

[jfbastien]

Seen in EWG on Wednesday:

Poll: Access to inaccessible members using reflection shall use inconvenient spelling (e.g. private members are accessible through silly_members_of, not members_of)

SF	F	N	A	SA
12	8	5	8	3

Result: not consensus