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Refactor library to use type kinds for non-overlapping traits #2

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Refactor library to use type kinds for non-overlapping traits #2

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15 changes: 7 additions & 8 deletions recapn-rpc/src/connection.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,6 @@ use recapn::arena::ReadArena;
use recapn::orphan::Orphan;
use recapn::rpc::Capable;
use recapn::{any, list, message, BuilderOf, NotInSchema, ReaderOf};
use recapn::field::{Struct, Enum};
use recapn::message::{BuilderParts, Message, ReaderOptions};
use recapn::ptr::{ElementCount, ElementSize, ObjectLen, ReturnErrors};
use tokio::select;
Expand All @@ -33,8 +32,8 @@ use crate::gen::capnp_rpc_capnp as rpc_capnp;
use rpc_capnp::CapDescriptor;
use rpc_capnp::promised_answer::Op;

const MAX_OPS: usize = ElementSize::size_of::<Struct<Op>>().max_elements().get() as usize;
const MAX_CAPS: usize = ElementSize::size_of::<Struct<CapDescriptor>>().max_elements().get() as usize;
const MAX_OPS: usize = ElementSize::size_of::<Op>().max_elements().get() as usize;
const MAX_CAPS: usize = ElementSize::size_of::<CapDescriptor>().max_elements().get() as usize;

type RpcSender = mpsc::Sender<RpcClient>;
type RpcReceiver = mpsc::Receiver<RpcClient>;
Expand Down Expand Up @@ -69,7 +68,7 @@ fn exception_to_error(ex: &ReaderOf<rpc_capnp::Exception>) -> Error {
Error::new(kind, Cow::Owned(msg))
}

type OpsList<'a> = list::StructListReader<'a, rpc_capnp::promised_answer::Op>;
type OpsList<'a> = list::Reader<'a, rpc_capnp::promised_answer::Op>;
fn to_pipeline_ops(list: OpsList) -> Result<Vec<PipelineOp>, Error> {
list.into_iter().filter_map(|op| {
use rpc_capnp::promised_answer::op::Which;
Expand Down Expand Up @@ -755,7 +754,7 @@ impl<T: MessageOutbound + ?Sized> Connection<T> {
pub fn try_handle_message(&mut self, incoming: impl IncomingMessage) -> Result<(), Error> {
let message = incoming.message();
let reader = recapn::message::Reader::new(message, self.options.reader_options.clone());
let reader = reader.read_as_struct::<rpc_capnp::Message>();
let reader = reader.read_as::<rpc_capnp::Message>();

use rpc_capnp::message::Which;
match reader.which() {
Expand Down Expand Up @@ -826,7 +825,7 @@ impl<T: MessageOutbound + ?Sized> Connection<T> {

fn handle_call(&mut self, message: ExternalMessage) -> Result<(), Error> {
let reader = recapn::message::Reader::new(&*message, self.options.reader_options.clone());
let message = reader.read_as_struct::<rpc_capnp::Message>();
let message = reader.read_as::<rpc_capnp::Message>();
let call = message.call().field().unwrap().try_get()?;

let target = self.read_message_target(&call.target().try_get()?)?;
Expand All @@ -849,7 +848,7 @@ impl<T: MessageOutbound + ?Sized> Connection<T> {

fn handle_return(&mut self, message: ExternalMessage) -> Result<(), Error> {
let reader = recapn::message::Reader::new(&*message, self.options.reader_options.clone());
let message = reader.read_as_struct::<rpc_capnp::Message>();
let message = reader.read_as::<rpc_capnp::Message>();
let ret: ReaderOf<rpc_capnp::Return> = message.r#return().field().unwrap().try_get()?;

let question_id = ret.answer_id();
Expand Down Expand Up @@ -970,7 +969,7 @@ impl<T: MessageOutbound + ?Sized> Connection<T> {
}
}

fn read_cap_descriptors(&mut self, table: list::StructListReader<rpc_capnp::CapDescriptor>) -> Result<Vec<Option<Client>>, Error> {
fn read_cap_descriptors(&mut self, table: list::Reader<rpc_capnp::CapDescriptor>) -> Result<Vec<Option<Client>>, Error> {
let mut descriptors = Vec::with_capacity(table.len() as usize);
for d in table {
let client = self.read_cap_descriptor(&d)?;
Expand Down
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