Richard Smith e69c3fd978 Support list initialization of C++ classes that is performed via a constructor call. (#6660) ...

The general strategy here is to import the constructor with a signature
that directly matches the argument. The intent is that the imported
function will eventually be usable directly as the `ImplicitAs.Convert`
function in a generated `impl`.

For initialization from a tuple, for example `(1, 2)`, we import the
selected constructor with a signature that takes a tuple pattern:

  `fn Class.Class((a: i32, b: i32)) -> Class;`

In order to support that, this PR also adds support in general for tuple
patterns in function signatures. It turns out the implementation was
already very close to allowing this.

Assisted-by: Gemini 3 Pro via Antigravity

2026-01-27 22:04:21 +00:00

..

class

Add support for using C++ user-defined conversions via interop (#6646)

2026-01-25 04:51:25 +00:00

enum

Form-aware textual format for return parameters and arguments (#6588)

2026-01-14 23:27:21 +00:00

function

Support list initialization of C++ classes that is performed via a constructor call. (#6660)

2026-01-27 22:04:21 +00:00

impls

Support list initialization of C++ classes that is performed via a constructor call. (#6660)

2026-01-27 22:04:21 +00:00

stdlib

Fix crash if a member of std::string_view is found in a derived class. (#6604)

2026-01-15 22:36:18 +00:00

template

Form-aware textual format for return parameters and arguments (#6588)

2026-01-14 23:27:21 +00:00

bad_import.carbon

Support import Cpp; to import Cpp namespace for using C++ builtins (#6320)

2025-11-06 08:45:28 +00:00

builtins.carbon

Change Destroy to use a CustomWitness instead of a blanket impl (#6512)

2025-12-19 18:36:06 +00:00

builtins.llp64.carbon

Add heterogeneous arithmetic operators for CppCompat.Long32 (#6644)

2026-01-27 17:39:36 +00:00

builtins.lp64.carbon

Add comparisons for CppCompat.LongLong64 (#6643)

2026-01-26 11:29:40 +00:00

cpp_diagnostics.carbon

Support import Cpp inline "some code";. (#5904)

2025-08-05 23:03:32 +00:00

cpp_namespace.carbon

Consolidate default Clang argument handling (#6545)

2026-01-03 17:35:29 +00:00

fail_fuzzing.carbon

Require file tests to specify a min-prelude (#5818)

2025-07-18 16:26:12 +00:00

fail_todo_arithmetic_types_unmapped.carbon

Add CppCompat.ULong32, CppCompat.LongLong64 and CppCompat.ULongLong64 (#6386)

2025-11-26 16:51:22 +00:00

file_not_found.carbon

Improve mapping of Clang diagnostics into Carbon diagnostics (#5894)

2025-08-01 01:24:31 +00:00

globals.carbon

Simplify importing of C++ global variables. (#6565)

2026-01-09 00:16:27 +00:00

import.carbon

Change Destroy to use a CustomWitness instead of a blanket impl (#6512)

2025-12-19 18:36:06 +00:00

include_paths.carbon

Interop: support all C++ integer types that map to intN_t or uintN_t. (#5836)

2025-07-22 21:29:09 +00:00

include.carbon

Introduce the none.carbon min-prelude (#5694)

2025-06-18 20:45:46 +00:00

inline.carbon

Properly set the name for C++ overload set instructions in SemIR (#6156)

2025-10-06 07:36:28 +00:00

macros.carbon

Form-aware textual format for return parameters and arguments (#6588)

2026-01-14 23:27:21 +00:00

modules.carbon

Delay finishing the C++ translation unit until we reach the real EOF. (#6489)

2025-12-13 00:56:30 +00:00

multiple_imports.carbon

Introduce the none.carbon min-prelude (#5694)

2025-06-18 20:45:46 +00:00

namespace.carbon

Form-aware textual format for return parameters and arguments (#6588)

2026-01-14 23:27:21 +00:00

typedef.carbon

Change Destroy to use a CustomWitness instead of a blanket impl (#6512)

2025-12-19 18:36:06 +00:00

unsupported_decl_type.carbon

Form-aware textual format for return parameters and arguments (#6588)

2026-01-14 23:27:21 +00:00

unused_internal.carbon

Delay finishing the C++ translation unit until we reach the real EOF. (#6489)

2025-12-13 00:56:30 +00:00

void_pointer.carbon

Clean up after combination of #6634 and #6635. (#6640)

2026-01-21 21:03:35 +00:00

void.carbon

Allow conversion between T* and Cpp.void*. (#6575)

2026-01-12 16:32:15 +00:00