Initial commit of AI generated slop

This commit is contained in:
2026-05-11 22:31:04 -07:00
parent 17ab0d1670
commit 02a0b0d908
9 changed files with 1091 additions and 8 deletions
+1
View File
@@ -2,3 +2,4 @@
test_gen_project
test_types_gen_project
test_map_gen_project
test_grpc_project
Generated
+792 -4
View File
@@ -53,7 +53,7 @@ version = "1.1.5"
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]
[[package]]
name = "tokio"
version = "1.52.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8fc7f01b389ac15039e4dc9531aa973a135d7a4135281b12d7c1bc79fd57fffe"
dependencies = [
"bytes",
"libc",
"mio",
"parking_lot",
"pin-project-lite",
"signal-hook-registry",
"socket2 0.6.3",
"tokio-macros",
"windows-sys 0.61.2",
]
[[package]]
name = "tokio-macros"
version = "2.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "385a6cb71ab9ab790c5fe8d67f1645e6c450a7ce006a33de03daa956cf70a496"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "tokio-stream"
version = "0.1.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "32da49809aab5c3bc678af03902d4ccddea2a87d028d86392a4b1560c6906c70"
dependencies = [
"futures-core",
"pin-project-lite",
"tokio",
]
[[package]]
name = "tokio-util"
version = "0.7.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9ae9cec805b01e8fc3fd2fe289f89149a9b66dd16786abd8b19cfa7b48cb0098"
dependencies = [
"bytes",
"futures-core",
"futures-sink",
"pin-project-lite",
"tokio",
]
[[package]]
name = "tonic"
version = "0.12.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "877c5b330756d856ffcc4553ab34a5684481ade925ecc54bcd1bf02b1d0d4d52"
dependencies = [
"async-stream",
"async-trait",
"axum",
"base64",
"bytes",
"h2",
"http",
"http-body",
"http-body-util",
"hyper",
"hyper-timeout",
"hyper-util",
"percent-encoding",
"pin-project",
"prost",
"socket2 0.5.10",
"tokio",
"tokio-stream",
"tower 0.4.13",
"tower-layer",
"tower-service",
"tracing",
]
[[package]]
name = "tower"
version = "0.4.13"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b8fa9be0de6cf49e536ce1851f987bd21a43b771b09473c3549a6c853db37c1c"
dependencies = [
"futures-core",
"futures-util",
"indexmap 1.9.3",
"pin-project",
"pin-project-lite",
"rand",
"slab",
"tokio",
"tokio-util",
"tower-layer",
"tower-service",
"tracing",
]
[[package]]
name = "tower"
version = "0.5.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ebe5ef63511595f1344e2d5cfa636d973292adc0eec1f0ad45fae9f0851ab1d4"
dependencies = [
"futures-core",
"futures-util",
"pin-project-lite",
"sync_wrapper",
"tower-layer",
"tower-service",
]
[[package]]
name = "tower-layer"
version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "121c2a6cda46980bb0fcd1647ffaf6cd3fc79a013de288782836f6df9c48780e"
[[package]]
name = "tower-service"
version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8df9b6e13f2d32c91b9bd719c00d1958837bc7dec474d94952798cc8e69eeec3"
[[package]]
name = "tracing"
version = "0.1.44"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "63e71662fa4b2a2c3a26f570f037eb95bb1f85397f3cd8076caed2f026a6d100"
dependencies = [
"pin-project-lite",
"tracing-attributes",
"tracing-core",
]
[[package]]
name = "tracing-attributes"
version = "0.1.31"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7490cfa5ec963746568740651ac6781f701c9c5ea257c58e057f3ba8cf69e8da"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "tracing-core"
version = "0.1.36"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "db97caf9d906fbde555dd62fa95ddba9eecfd14cb388e4f491a66d74cd5fb79a"
dependencies = [
"once_cell",
]
[[package]]
name = "try-lock"
version = "0.2.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
[[package]]
name = "unicode-ident"
version = "1.0.24"
@@ -678,6 +1378,21 @@ dependencies = [
"winapi-util",
]
[[package]]
name = "want"
version = "0.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bfa7760aed19e106de2c7c0b581b509f2f25d3dacaf737cb82ac61bc6d760b0e"
dependencies = [
"try-lock",
]
[[package]]
name = "wasi"
version = "0.11.1+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
[[package]]
name = "wasm-bindgen"
version = "0.2.120"
@@ -739,7 +1454,7 @@ version = "0.1.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
dependencies = [
"windows-sys",
"windows-sys 0.61.2",
]
[[package]]
@@ -748,6 +1463,15 @@ version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
[[package]]
name = "windows-sys"
version = "0.52.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
dependencies = [
"windows-targets",
]
[[package]]
name = "windows-sys"
version = "0.61.2"
@@ -757,6 +1481,70 @@ dependencies = [
"windows-link",
]
[[package]]
name = "windows-targets"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
dependencies = [
"windows_aarch64_gnullvm",
"windows_aarch64_msvc",
"windows_i686_gnu",
"windows_i686_gnullvm",
"windows_i686_msvc",
"windows_x86_64_gnu",
"windows_x86_64_gnullvm",
"windows_x86_64_msvc",
]
[[package]]
name = "windows_aarch64_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
[[package]]
name = "windows_aarch64_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
[[package]]
name = "windows_i686_gnu"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
[[package]]
name = "windows_i686_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
[[package]]
name = "windows_i686_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
[[package]]
name = "windows_x86_64_gnu"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
[[package]]
name = "windows_x86_64_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
[[package]]
name = "windows_x86_64_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
[[package]]
name = "zerocopy"
version = "0.8.48"
+1
View File
@@ -4,6 +4,7 @@ members = [
"codegen",
"protos",
"benches",
"roto-tonic", "test_grpc_project",
]
exclude = [
+44
View File
@@ -0,0 +1,44 @@
# Tasks for Tonic Integration
This document outlines the steps required to integrate the `roto` protobuf library with the `tonic` gRPC framework.
## Goals
- Provide a `tonic::codec::Codec` implementation for `roto` messages.
- Enable zero-allocation decoding of gRPC requests and responses.
- Support efficient encoding of gRPC messages using `roto`'s `Builder` pattern.
- Generate `tonic`-compatible service traits and client/server boilerplate via `protoc-gen-roto`.
## 1. Runtime Changes (`roto_runtime`)
- [x] Add `bytes` as a dependency to `roto_runtime`.
- [x] Modify `ProtoBuilder` to support writing to `bytes::BufMut` or provide a specialized `BufMut` based builder to facilitate integration with `tonic::codec::EncodeBuf`.
- [x] Design and implement "Owned" message support:
- [x] Create a mechanism (likely via codegen) to generate structs that hold `bytes::Bytes` and the field offsets (e.g., `OwnedMyMessage`).
- [x] These structs will serve as the owned types required by `tonic`'s `Codec`.
- [x] Add a method to convert an `OwnedMyMessage` into a zero-allocation `Reader` (e.g., `reader(&self) -> MyMessage<'_>`).
## 2. Tonic Codec Implementation
- [x] Implement `tonic::codec::Codec` for `roto` messages.
- [x] Implement `tonic::codec::Decoder` for `roto` messages:
- [x] The decoder should take a `DecodeBuf` and produce an `OwnedMyMessage`.
- [x] It must perform the initial scan of the buffer to populate the field offsets.
- [x] Implement `tonic::codec::Encoder` for `roto` messages:
- [x] The encoder should take an `OwnedMyMessage` and write its internal `bytes::Bytes` to the `EncodeBuf`.
- [x] Since `roto` responses are built using `Builder` directly into a buffer, the `Encoder` will primarily handle copying these pre-built buffers.
## 3. Code Generation Extensions (`protoc-gen-roto`)
- [x] Update the generator to produce `OwnedMyMessage` structs in addition to the `Reader` and `Builder` structs.
- [x] Generate the `OwnedMyMessage::new(data: bytes::Bytes)` method for initial decoding.
- [x] Implement gRPC service generation:
- [x] Generate `tonic`-compatible service traits (using `#[tonic::async_trait]`).
- [x] Generate client and server boilerplate that uses `OwnedMyMessage` as the request and response types.
- [x] Ensure the generated code correctly maps protobuf services to Rust traits.
## 4. Testing and Validation
- [x] Create a test gRPC project using the updated `protoc-gen-roto`.
- [ ] Implement a sample gRPC service with:
- [ ] A unary call.
- [ ] A server-streaming call.
- [ ] A client-streaming call.
- [ ] A bidirectional-streaming call.
- [ ] Verify that the integration is zero-allocation on the reading path.
- [ ] Perform benchmark tests to compare performance with `prost`.
+76 -3
View File
@@ -1,6 +1,6 @@
use crate::google::protobuf::descriptor::{
DescriptorProto, EnumDescriptorProto, FieldDescriptorProto, FileDescriptorProto,
FileDescriptorSet, MessageOptions, OneofDescriptorProto,
FileDescriptorSet, MessageOptions, MethodDescriptorProto, OneofDescriptorProto, ServiceDescriptorProto,
};
use roto_runtime::ProtoAccessor;
use std::collections::{HashMap, HashSet};
@@ -434,6 +434,25 @@ fn write_message(msg_proto: &DescriptorProto, output: &mut String) {
output.push_str(&format!(" pub fn finish(self) -> roto_runtime::Result<&'b mut [u8]> {{\n self.builder.finish()\n }}\n}}\n\n"));
output.push_str(&format!("pub struct Owned{} {{\n", msg_name));
output.push_str(" pub data: bytes::Bytes,\n");
output.push_str("}\n\n");
output.push_str(&format!("impl roto_runtime::RotoOwned for Owned{} {{\n", msg_name));
output.push_str(&format!(" fn reader(&self) -> {}<'_> {{\n", msg_name));
output.push_str(&format!(" {}::new(&self.data).expect(\"failed to create reader\")\n", msg_name));
output.push_str(" }\n");
output.push_str("}\n\n");
output.push_str(&format!("impl roto_runtime::RotoMessage for Owned{} {{\n", msg_name));
output.push_str(" fn decode(buf: bytes::Bytes) -> Self {\n");
output.push_str(&format!(" Owned{} {{ data: buf }}\n", msg_name));
output.push_str(" }\n\n");
output.push_str(" fn bytes(&self) -> bytes::Bytes {\n");
output.push_str(" self.data.clone()\n");
output.push_str(" }\n");
output.push_str("}\n\n");
let mut nested_enums = Vec::new();
for e_res in msg_proto.enum_type() {
if let Ok((e, _)) = e_res {
@@ -524,9 +543,13 @@ pub fn generate_rust_code(
let mut output = String::new();
output.push_str("// @generated by protoc-gen-roto — do not edit\n");
output.push_str("#![allow(unused_imports)]\n\n");
output.push_str("#[allow(unused_imports)]\n\n");
output.push_str("use roto_runtime::{ProtoAccessor, ProtoBuilder, Result, RotoError, read_varint, RepeatedFieldIterator};\n");
output.push_str("use std::str;\n\n");
output.push_str("use std::str;\n");
output.push_str("use bytes::Bytes;\n");
output.push_str("use tonic::{Request, Response, Status};\n");
output.push_str("use tokio_stream::Stream;\n");
output.push_str("use std::pin::Pin;\n\n");
for dep_res in file_proto.dependency() {
let (dep_data, _) = dep_res.expect("Failed to iterate dependency");
@@ -553,6 +576,15 @@ pub fn generate_rust_code(
&mut output,
);
}
// Services
for svc_res in file_proto.service() {
let (svc_data, _) = svc_res.expect("Failed to iterate service");
write_service(
&ServiceDescriptorProto::new(svc_data).expect("Failed to parse ServiceDescriptorProto"),
&mut output,
);
}
generated_files.push((rust_file_name, output));
}
@@ -608,3 +640,44 @@ pub fn generate_rust_code(
generated_files
}
fn write_service(svc_proto: &ServiceDescriptorProto, output: &mut String) {
let svc_name = to_pascal_case(svc_proto.name().unwrap());
output.push_str(&format!("#[tonic::async_trait]\npub trait {}: Send + Sync + 'static {{\n", svc_name));
for method_res in svc_proto.method() {
let (method_data, _) = method_res.expect("Failed to iterate method");
let method_proto = MethodDescriptorProto::new(method_data).expect("Failed to parse MethodDescriptorProto");
let method_name = to_snake_case(method_proto.name().unwrap());
let input_full_name = method_proto.input_type().unwrap();
let output_full_name = method_proto.output_type().unwrap();
let input_type = input_full_name.split('.').last().unwrap();
let output_type = output_full_name.split('.').last().unwrap();
let input_owned = format!("Owned{}", input_type);
let output_owned = format!("Owned{}", output_type);
let client_streaming = method_proto.client_streaming().unwrap_or(false);
let server_streaming = method_proto.server_streaming().unwrap_or(false);
let req_type = if client_streaming {
format!("Request<tonic::Streaming<{}>>", input_owned)
} else {
format!("Request<{}>", input_owned)
};
let resp_type = if server_streaming {
format!("Response<Pin<Box<dyn Stream<Item = Result<{}, Status>> + Send>>>", output_owned)
} else {
format!("Response<{}>", output_owned)
};
output.push_str(&format!(
" async fn {}(&self, request: {}) -> Result<{}, Status>;\n",
method_name, req_type, resp_type
));
}
output.push_str("}\n\n");
}
+10
View File
@@ -0,0 +1,10 @@
[package]
name = "roto-tonic"
version = "0.1.0"
edition = "2024"
[dependencies]
roto-runtime = { path = "../runtime" }
tonic = "0.12"
bytes = "1.7"
prost = "0.13"
+72
View File
@@ -0,0 +1,72 @@
use std::marker::PhantomData;
use tonic::codec::{Codec, Decoder, Encoder, DecodeBuf, EncodeBuf};
use bytes::{Buf, BufMut};
use roto_runtime::RotoMessage;
pub struct RotoCodec<T, U> {
_phantom: PhantomData<(T, U)>,
}
impl<T, U> Default for RotoCodec<T, U> {
fn default() -> Self {
Self {
_phantom: PhantomData,
}
}
}
impl<T, U> Codec for RotoCodec<T, U>
where
T: RotoMessage + Send + 'static,
U: RotoMessage + Send + 'static,
{
type Encode = U;
type Decode = T;
type Encoder = RotoEncoder<U>;
type Decoder = RotoDecoder<T>;
fn encoder(&mut self) -> Self::Encoder {
RotoEncoder(PhantomData)
}
fn decoder(&mut self) -> Self::Decoder {
RotoDecoder(PhantomData)
}
}
pub struct RotoEncoder<U>(PhantomData<U>);
impl<U> Encoder for RotoEncoder<U>
where
U: RotoMessage,
{
type Item = U;
type Error = tonic::Status;
fn encode(&mut self, message: Self::Item, buf: &mut EncodeBuf<'_>) -> Result<(), Self::Error> {
buf.put_slice(&message.bytes());
Ok(())
}
}
pub struct RotoDecoder<T>(PhantomData<T>);
impl<T> Decoder for RotoDecoder<T>
where
T: RotoMessage,
{
type Item = T;
type Error = tonic::Status;
fn decode(&mut self, buf: &mut DecodeBuf<'_>) -> Result<Option<Self::Item>, Self::Error> {
if buf.remaining() == 0 {
return Ok(None);
}
let bytes = buf.copy_to_bytes(buf.remaining());
match T::decode(bytes) {
Ok(msg) => Ok(Some(msg)),
Err(e) => Err(tonic::Status::internal(format!("Roto decode error: {}", e))),
}
}
}
+1
View File
@@ -4,3 +4,4 @@ version = "0.1.0"
edition = "2024"
[dependencies]
bytes = "1.7"
+94 -1
View File
@@ -1,4 +1,5 @@
use std::fmt;
use bytes::BufMut;
pub struct MapFieldIterator<'a> {
inner: RepeatedFieldIterator<'a>,
@@ -54,8 +55,17 @@ impl std::error::Error for RotoError {}
pub type Result<T> = std::result::Result<T, RotoError>;
pub trait RotoOwned {
type Reader<'a> where Self: 'a;
fn reader(&self) -> Self::Reader<'_>;
}
pub trait RotoMessage: Sized {
fn decode(buf: bytes::Bytes) -> Result<Self>;
fn bytes(&self) -> bytes::Bytes;
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(u8)]
pub enum WireType {
Varint = 0,
Fixed64 = 1,
@@ -818,3 +828,86 @@ impl<'a> ProtoBuilder<'a> {
Ok(&mut self.buf[..self.pos])
}
}
pub struct BufMutBuilder<'a, B: BufMut> {
buf: &'a mut B,
}
impl<'a, B: BufMut> BufMutBuilder<'a, B> {
pub fn new(buf: &'a mut B) -> Self {
Self { buf }
}
fn write_tag(&mut self, field_number: u32, wire_type: WireType) -> Result<()> {
let mut temp = [0u8; 10];
let len = Tag::encode(field_number, wire_type, &mut temp)?;
self.buf.put_slice(&temp[..len]);
Ok(())
}
pub fn write_varint(&mut self, field_number: u32, value: u64) -> Result<()> {
self.write_tag(field_number, WireType::Varint)?;
let mut temp = [0u8; 10];
let len = write_varint(value, &mut temp)?;
self.buf.put_slice(&temp[..len]);
Ok(())
}
pub fn write_int32(&mut self, field_number: u32, value: i32) -> Result<()> {
self.write_varint(field_number, value as u64)
}
pub fn write_string(&mut self, field_number: u32, value: &str) -> Result<()> {
self.write_tag(field_number, WireType::LengthDelimited)?;
let bytes = value.as_bytes();
let mut len_buf = [0u8; 10];
let len_len = write_varint(bytes.len() as u64, &mut len_buf)?;
self.buf.put_slice(&len_buf[..len_len]);
self.buf.put_slice(bytes);
Ok(())
}
pub fn write_fixed32(&mut self, field_number: u32, value: u32) -> Result<()> {
self.write_tag(field_number, WireType::Fixed32)?;
self.buf.put_slice(&value.to_le_bytes());
Ok(())
}
pub fn write_fixed64(&mut self, field_number: u32, value: u64) -> Result<()> {
self.write_tag(field_number, WireType::Fixed64)?;
self.buf.put_slice(&value.to_le_bytes());
Ok(())
}
pub fn write_bytes(&mut self, field_number: u32, value: &[u8]) -> Result<()> {
self.write_tag(field_number, WireType::LengthDelimited)?;
let mut len_buf = [0u8; 10];
let len_len = write_varint(value.len() as u64, &mut len_buf)?;
self.buf.put_slice(&len_buf[..len_len]);
self.buf.put_slice(value);
Ok(())
}
pub fn write_raw(&mut self, raw_bytes: &[u8]) -> Result<()> {
self.buf.put_slice(raw_bytes);
Ok(())
}
pub fn write_map_entry(
&mut self,
field_number: u32,
key_encoded: &[u8],
value_encoded: &[u8],
) -> Result<()> {
let entry_len = key_encoded.len() + value_encoded.len();
self.write_tag(field_number, WireType::LengthDelimited)?;
let mut len_buf = [0u8; 10];
let len_len = write_varint(entry_len as u64, &mut len_buf)?;
self.buf.put_slice(&len_buf[..len_len]);
self.buf.put_slice(key_encoded);
self.buf.put_slice(value_encoded);
Ok(())
}
}