commit 269053a3801ebe925707db5a8e519836ad2242c9 Author: Isis Lovecruft isis@torproject.org Date: Wed Mar 21 02:59:25 2018 +0000

rust: Refactor Rust impl of protover_list_supports_protocol_or_later().

This includes a subtle difference in behaviour, as in 4258f1e18, where we return (matching the C impl's return behaviour) earlier than before if parsing failed, saving us computation in parsing the versions into a protover::protoset::ProtoSet.

* REFACTOR `protover::ffi::protover_list_supports_protocol_or_later()` to use new types and methods. --- src/rust/protover/ffi.rs | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/rust/protover/ffi.rs b/src/rust/protover/ffi.rs index d9365bdd7..e7c821116 100644 --- a/src/rust/protover/ffi.rs +++ b/src/rust/protover/ffi.rs @@ -141,11 +141,15 @@ pub extern "C" fn protocol_list_supports_protocol_or_later( Err(_) => return 0, };

- let is_supported = - protover_string_supports_protocol_or_later( - protocol_list, protocol, version); + let proto_entry: UnvalidatedProtoEntry = match protocol_list.parse() { + Ok(n) => n, + Err(_) => return 1, + };

- return if is_supported { 1 } else { 0 }; + if proto_entry.supports_protocol_or_later(&protocol.into(), &version) { + return 1; + } + 0 }

/// Provide an interface for C to translate arguments and return types for