tree 28ec3184c723c91b6f43d0b32f4db97dd739a5b6
parent 60292f4293e00f1d4b4e5566c5f601d19114f51e
author Lukasz Anforowicz <lukasza@google.com> 1667847378 -0800
committer Copybara-Service <copybara-worker@google.com> 1667847415 -0800

Explicit names for anonymous parameters: `fn foo(_: f64, _: f64)`.

In theory, the names could be omitted in *some* C++ translations (e.g.
`void foo(double, double)`), but they are required in other scenarios:

1. Forwarding an argument to a Rust function with a different name
   (e.g. `#[export_name = ...]` attribute and/or Rust-ABI functions).
   `return ::__crubit_internal::export_name(need_param_name_here)`.

2. Irrefutable, destructuring pattern matching - e.g.:
   `fn foo((x, y): (i32, i32)) {}`
   (this CL doesn't yet provide test coverage for this scenario,
   because types that support destructuring are not yet supported).

PiperOrigin-RevId: 486708734