commit 460e42790eb9a727164f3676755bdd812fceb0bc
author Lukasz Anforowicz <lukasza@google.com> Thu May 18 16:11:46 2023 -0700
committer Copybara-Service <copybara-worker@google.com> Thu May 18 16:12:17 2023 -0700
tree 33fd455b4ea1b12987f8105032884cf36f2aad48
parent f164e03d39b81b3d02a1e668ee7a455403800ef6

Map `int` to `core::ffi::c_int` (also for most other builtin C++ types).

This CL provides mappings for most types under `core::ffi`, except for:
* Types like `core::ffi::ptrdiff_t`, because they depend on an
  experimental feature: https://github.com/rust-lang/rust/issues/88345
* `core::ffi::c_char` because of b/276931370 and because continuing
  translating `char` to `u8` reduces the amount of cascading changes in
  this CL (e.g. changes to `crubit/support/cc_std/string_view.rs`).

Note that some other `clang/AST/BuiltinTypes.def` types like `char16_t`
don't have an equivelent under `core::ffi`. This CL doesn't change how
such types are handled (some of them are already covered by
`rs_bindings_from_cc/type_map.cc`).

PiperOrigin-RevId: 533279988

rs_bindings_from_cc/test/golden/friend_functions_rs_api.rs

diff --git a/rs_bindings_from_cc/test/golden/friend_functions_rs_api.rs b/rs_bindings_from_cc/test/golden/friend_functions_rs_api.rs
index 699a941..005ca17 100644
--- a/rs_bindings_from_cc/test/golden/friend_functions_rs_api.rs
+++ b/rs_bindings_from_cc/test/golden/friend_functions_rs_api.rs
@@ -93,7 +93,7 @@
 /// Uint128Low64 declarations from absl/numeric/int128.h.  This is a
 /// regression test for b/244311755.
 #[inline(always)]
-pub fn multiple_declarations<'a>(__param_0: &'a crate::SomeClass) -> i32 {
+pub fn multiple_declarations<'a>(__param_0: &'a crate::SomeClass) -> ::core::ffi::c_int {
     unsafe { crate::detail::__rust_thunk___Z21multiple_declarationsRK9SomeClass(__param_0) }
 }
 
@@ -133,7 +133,7 @@
         );
         pub(crate) fn __rust_thunk___Z21multiple_declarationsRK9SomeClass<'a>(
             __param_0: &'a crate::SomeClass,
-        ) -> i32;
+        ) -> ::core::ffi::c_int;
     }
 }