yash-agarwa-l opened a new pull request, #3776:
URL: https://github.com/apache/fory/pull/3776
## Why?
Swift users can generate Fory model types today, but schemas that define
services
do not produce Swift gRPC companions. This leaves Swift out of the existing
`--grpc`
workflow used by the other supported service-generation targets.
## What does this PR do?
- Adds Swift gRPC companion generation for Fory compiler services, including
service
metadata descriptors, an `EventLoopFuture` provider, an async/await
provider, an
async client, and Fory-backed request/response stream adapters, targeting
grpc-swift 1.x.
- Serializes request and response bodies with Fory instead of protobuf
through an
internal `GRPCPayload` wrapper. Because the Swift `Fory` runtime is
single-threaded,
the wrapper builds one `Fory` per thread from the schema module's own
configuration
and registrations, so concurrent RPCs are race-free (verified under
ThreadSanitizer).
- Emits an async-only client; the `EventLoopFuture` client and interceptor
hooks are
omitted because their generated types would expose the internal wrapper.
- Adds Swift preflight validation for generated output-path and top-level
symbol
collisions, and reserves inherited provider/client member names (`handle`,
`serviceName`, `channel`, `defaultCallOptions`) so a clashing rpc fails
codegen
with a clear message.
- Updates compiler and service-codegen tests to cover the four streaming
shapes,
identifier escaping, imported and nested service types, the default
package, the
protobuf and FlatBuffers frontends, collision handling, a SwiftPM
build-and-run
fixture, and a marshaller concurrency test under ThreadSanitizer (gated
behind
`FORY_SWIFT_TSAN`).
- Wires Swift output into the cross-language gRPC generation helper.
- Documents Swift gRPC support, dependencies, generated API shape,
streaming, the
shared-top-level-package limitation, troubleshooting, and compiler guide
updates.
Draft: Java<->Swift cross-language interop tests (all four modes, all three
IDL
frontends) are in progress and will be added before this PR is marked ready
for review.
## Related issues
#3266
#3370
## AI Contribution Checklist
- [ ] Substantial AI assistance was used in this PR: `yes`
- [ ] If `yes`, I included a completed AI Contribution Checklist in this PR
description and the required `AI Usage Disclosure`.
- [ ] If `yes`, my PR description includes the required `ai_review` summary
and screenshot evidence of the final clean AI review results from both fresh
reviewers on the current PR diff or current HEAD after the latest code changes.
## Does this PR introduce any user-facing change?
- [x] Does this PR introduce any public API change?
- Adds generated Swift gRPC companion APIs when `foryc --swift_out=...
--grpc` is used.
- [ ] Does this PR introduce any binary protocol compatibility change?
- The generated services use Fory-encoded gRPC message bodies, but this PR
does not
change the Fory binary protocol.
## Benchmark
Not applicable.
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