carbon-language/carbon-lang
1
0
Fork 0
mirror of https://github.com/carbon-language/carbon-lang.git synced 2026-10-02 12:25:49 +01:00
Code Issues Packages Projects Releases 10 Wiki Activity
4,179 Commits 3 Branches 810 Tags
be487bbeda32f4fa99c616fc28999c8778149f32
Commit Graph
6 Commits
Author SHA1 Message Date
Richard Smith a6acba9eab Support for importing const-qualified types from C++. (#5794) 
Incidentally also supports import of pointers-to-pointers.

Imported const-qualified types aren't especially useful just yet,
because on the Carbon side we don't yet permit conversions from
non-const to const types, so most of the tests still fail, but for
different reasons now.
 2025-07-12 02:22:24 +00:00
Jon Ross-Perkins 8cd1307711 Include the interface name in impl names (#5798) 
i.e., `impl` -> `<interface>.impl`
 2025-07-11 19:52:53 +00:00
Richard Smith 26e23eac10 Support import of typedefs. (#5787) 
Unify code paths for importing classes by name and importing them
indirectly when their type is referenced. Switch to using the general
type import machinery to import all type declarations, which allows
typedef declarations naming importable types to be used too.

Fix up handling of error cases to consistently only produce an Error
InstId after actually producing an error message, so that we can produce
exactly one diagnostic in failure cases.

Remove TODO error for unions that previously was only produced when
importing them indirectly, not when importing them by name. Import of
unions is exactly as complete / incomplete as import of other class
types, so treating them differently doesn't seem necessary.
 2025-07-10 20:46:46 +00:00
Boaz Brickner a5ddc3e3cd Support importing C++ _Nonnull pointers as function parameters or return values (#5773) 
We avoid using canonical type before knowing it's not a pointer because
we need the nullability attribute.
No support for pointers to pointers, yet.

C++ Interop Demo:

```c++
// hello_world.h

auto hello_world_param(int* _Nonnull i) -> void;
auto hello_world_return() -> int* _Nonnull;
```

```c++
// hello_world.cpp

#include "hello_world.h"
#include <cstdio>

auto hello_world_param(int* _Nonnull i) -> void {
  printf("hello_world: %d\n", *i);
}

static int x = 5;
auto hello_world_return() -> int* _Nonnull { return &x; }
```

```carbon
// main.carbon

library "Main";

import Core library "io";
import Cpp library "hello_world.h";

fn Run() -> i32 {
  var i: i32 = 10;
  Cpp.hello_world_param(&i);

  let p: i32* = Cpp.hello_world_return();
  Core.Print(*p);

  return 0;
}
```

```shell
$ clang -c hello_world.cpp
$ ./bazel-bin/toolchain/install/prefix_root/bin/carbon compile main.carbon
$ ./bazel-bin/toolchain/install/prefix_root/bin/carbon link hello_world.o main.o --output=demo
$ ./demo
hello_world: 10
5
```

Part of #5772.
 2025-07-10 08:00:37 +00:00
Jon Ross-Perkins 4aa62bf5cd Switch Destroy to addr self (#5748) 
Pointed out by zygoloid on #toolchain, just taking care of this now.
 2025-06-28 00:50:47 +00:00
Boaz Brickner 11a75d1de1 Move function_ test files to be in function dir and remove the function_ prefix (#5716) 
Follow up of
https://github.com/carbon-language/carbon-lang/pull/5645#discussion_r2153064236
and #5607.
 2025-06-24 12:53:33 +00:00