Implement Iterate for types that implement CppRangeForIterate (#7294)

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This change adds rudimentary support for C++ ranges in Carbon range-for
loops. Since C++ ranges are exposed through `Core.Iterate`, C++ ranges
have the same limitations as Carbon ranges (e.g. can't return
references).

`Iterate.CursorType` now requires `Destroy`, since types that implement
`CppRangeForIterate` can't be used in range-for loops unless their
cursor type can be verifiably destructible.

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This commit is contained in:

Christopher Di Bella

2026-06-03 04:51:09 +00:00

committed by GitHub

parent d578e4afe7

commit 61ee4edd9c

6 changed files with 2654 additions and 1074 deletions

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toolchain/check/testdata/interop/cpp/range_for.carbon

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