David BlaikieandChristopher Di Bella d99b767dde Export fields of imported Carbon classes to C++ (#8021) ...

When a Carbon class from another library was used from C++, its fields
were never exported, so C++ member access failed with 'no member named'.
The class scope of an imported class holds import references rather than
`FieldDecl`s, so `LookupClassFieldByStructField` didn't find them.
Resolve scope entries to their constant `FieldDecl`, load the import
references before exporting fields, and consistently key exported fields
by the `FieldDecl`.

Unfortunately `SemIR::LookupClassFieldByStructField` can't call
`LoadImportRef` because `SemIR::LookupClassFieldByStructField` is in
`SemIR` and `LoadImportRef` needs a `Check::Context` (and `check`
depends on `sem_ir`, not the other way around, so `sem_ir` can't use
check). So instead, make a `Check::LookupClassFieldByStructField` that
wraps the `SemIR` version, and does the `LoadImportRef`

Assisted-By: Claude

---------

Co-authored-by: Christopher Di Bella <cjdb.ns@gmail.com>

2026-11-02 20:37:01 +00:00

..

basics

Improve lexer and parser diagnostic locations (#7990)

2026-11-01 06:22:00 +00:00

class

Export fields of imported Carbon classes to C++ (#8021)

2026-11-02 20:37:01 +00:00

const

Render diagnostics through the terminal library (#7683)

2026-10-15 06:08:57 +00:00

enum

Move SubobjectDestroy and SelfDestruct out of interface Destroy (#7942)

2026-10-26 21:35:01 +00:00

function

Rework the initial terminal rendering into the form the design landed on (#7994)

2026-10-31 06:10:03 +00:00

impls

Rework the initial terminal rendering into the form the design landed on (#7994)

2026-10-31 06:10:03 +00:00

macros

Move SubobjectDestroy and SelfDestruct out of interface Destroy (#7942)

2026-10-26 21:35:01 +00:00

modules

Fix contention between Clang and Carbon over external name lookup. (#7411)

2026-06-24 18:36:59 +00:00

namespace

Rework the initial terminal rendering into the form the design landed on (#7994)

2026-10-31 06:10:03 +00:00

operators

Build a generic scope around where expressions (#8062)

2026-11-02 20:05:00 +00:00

primitive_types

Move SubobjectDestroy and SelfDestruct out of interface Destroy (#7942)

2026-10-26 21:35:01 +00:00

stdlib

Move SubobjectDestroy and SelfDestruct out of interface Destroy (#7942)

2026-10-26 21:35:01 +00:00

template

Rework the initial terminal rendering into the form the design landed on (#7994)

2026-10-31 06:10:03 +00:00

type_alias

Move SubobjectDestroy and SelfDestruct out of interface Destroy (#7942)

2026-10-26 21:35:01 +00:00

var

Render diagnostics through the terminal library (#7683)

2026-10-15 06:08:57 +00:00

range_for.carbon

Move SubobjectDestroy and SelfDestruct out of interface Destroy (#7942)

2026-10-26 21:35:01 +00:00