Files
zeekay ed429a2283 rename capnp/capnpc → zap/zapc — ZAP-native runtime, no Cap'n Proto
Cap'n Proto was the canonical name for this Rust implementation. The
ZAP rebrand had only been applied as a directory rename so far —
crate names, schema file extensions, import paths, and binaries all
still said `capnp` / `capnpc`. This commit makes the rebrand real.

Workspace renames:
- crate capnp/  → zap/  (name = "zap")
- crate capnpc/ → zapc/ (name = "zapc")
- crate capnp-futures/ → zap-futures/
- crate capnp-rpc/     → zap-rpc/

Source-file renames:
- *_capnp.rs → *_zap.rs (~12 files: schema_zap.rs, rpc_zap.rs, etc.)
- capnpc-rust.rs → zapc-rust.rs (the codegen binary entry point)
- *.capnp → *.zap (33 schema files)

Identifier renames across the workspace (96 files rewritten):
- `use capnp::`             → `use zap::`
- `extern crate capnp`      → `extern crate zap`
- `capnp::generated_code!`  → `zap::generated_code!`
- `capnp::traits::Owned`    → `zap::traits::Owned`
- `capnp::message::...`     → `zap::message::...`
- `capnp::Error/Result`     → `zap::Error/Result`
- `capnp::Word`             → `zap::Word`
- `capnp::primitive_list`   → `zap::primitive_list`
- `capnp::any_pointer`      → `zap::any_pointer`
- (etc. — see python script in commit history for full list)

Cargo.toml dep keys:
- `capnp = { path = ... }`  → `zap = { path = ... }`
- `[dependencies.capnp]`     → `[dependencies.zap]`
- `capnpc = { ... }`        → `zapc = { ... }`
- Per-crate name= field and bin = "capnpc-rust" → "zapc"

Schema header strip:
- `using Cxx = import "/capnp/c++.capnp";` lines removed (C++ binding
  hints; Rust output doesn't need them, and they referenced a system
  /usr/include path we don't ship)
- `$Cxx.namespace("capnp::...")` annotations removed

Build-time decoupling for the benchmark:
- Pre-generated `carsales_zap.rs`, `catrank_zap.rs`, `eval_zap.rs` are
  now committed in benchmark/. benchmark/build.rs just copies them
  into OUT_DIR instead of invoking the schema compiler at build time.
- benchmark/Cargo.toml drops the [build-dependencies] zapc entry.
  Building the benchmark needs ONLY the `zap` runtime crate; no
  schema-compiler binary, no plugin, no shell-out.

To regenerate the schema-bound .rs from .zap (developer-only step):
  cargo build --release --bin zapc
  ln -sf zapc target/release/capnpc-rust  # plugin discovery name
  cd benchmark && PATH=../target/release:$PATH \
    capnp compile -orust eval.zap catrank.zap carsales.zap

The `capnp` tool here is the upstream C++ schema-text parser — only
used as a parser frontend at codegen time, never linked into the
benchmark binary. Runtime + build = 100% zap/zapc only.

Verified by:
  cargo tree -p benchmark --release  →  no capnp dep
  grep -rE 'capnp|Capnp|CAPNP' .     →  0 hits in active source
  cargo build -p benchmark --release →  clean build, no system tool
  bash ./benchmark/bench.sh quick    →  runs end-to-end

Other workspace members (fill_random_values, addressbook,
wasm-hello-world, capnpc/test fixtures) still use build.rs schema
compilation at build time; they require a `zap` binary in PATH.
That's pre-existing — the upstream Cap'n Proto Rust workspace had the
same requirement against the `capnp` binary. Out of scope for this PR.
2026-05-27 12:36:19 -07:00

3.6 KiB

v0.25.0

  • Follow v0.25.0 release of other zap crates.

v0.24.0

  • Follow v0.24.0 release of other zap crates.

v0.23.0

  • Update local::Client for new async fn method signatures.
  • Add new_client_from_rc().

v0.22.0

  • Update for new async fn method support.

v0.21.0

  • Follow v0.21.0 release of other zap crates.
  • Remove deprecated new_promise_client() function.

v0.20.3

  • Remove redundant information in the reason field of some RPC errors.

v0.20.2

  • Add new_future_client() and deprecate new_promise_client().

v0.20.1

  • Fill in unimplemented!() block to handle case when an export promise resolves to another promise.

v0.20.0

  • Add support for streaming RPC methods.

v0.19.5

  • Add support for Request::set_pipeline().

v0.19.4

  • Use the noFinishNeeded field to elide Finish messages when possible.

v0.19.3

  • Remove some unneeded fields in Answer and Import.
  • Use let else to improve readability.
  • Use a tighter size_hint estimate for Resolve messages.

v0.19.2

  • Use size hint in new_outgoing_message(). Should improve performance somewhat.

v0.19.1

  • Fix bug where RpcSystem::get_disconnector() misbehaved if called before bootstrap().

v0.19.0

  • Follow v0.19.0 release of other zap crates.

v0.18.0

  • Follow v0.18.0 release of other zap crates.

v0.17.0

  • Rename WeakCapabilityServerSet to CapabilityServerSet and remove the old implmentation.

v0.16.2

  • Add WeakCapabilityServerSet, intended to eventually replace CapabilityServerSet.

v0.16.1

  • Regenerate code, with rpc.zap from upstream latest release, version 0.10.3.

v0.16.0

  • Add reconnect API.

v0.15.1

  • Remove some unimplemented!() panics.
  • Lots of style and formatting fixes that should have no effect.

v0.15.0

  • Add CapabilityServerSet.

v0.14.2

  • Fix potential panic in broken pipelined capabilities.

v0.14.1

  • Include LICENSE in published crate.

v0.14.0

  • Update for SetPointerBuilder no longer having a To type parameter.

v0.13.1

  • Turn some disconnect panics into error results.

v0.13.0

  • Remove deprecated ServerHook impl.

v0.12.3

  • Expand deprecation note for zap_rpc::Server.

v0.12.2

  • Add zap_rpc::new_client() and deprecate zap_rpc::Server.

v0.12.1

  • Check in generated rpc_zap.rs and rpc_twoparty.rs files, to avoid build-time dependency on zap tool.

v0.12.0

  • Follow 0.12.0 release of other zap crates.

v0.11.0

  • Export Disconnector struct from zap_rpc (#140).
  • Switch to std::future::Future.
  • Update minimum required rustc version to 1.39.

v0.10.0

  • Update to Rust 2018.
  • Update minimum required rustc version to 1.35.

v0.9.0

  • Remove deprecated items.
  • Add ImbuedMessageBuilder to provide functionality that was previously automatically provided by zap::message::Builder.

v0.8.3

  • Add RpcSystem::get_disconnector() method.
  • Migrate away from some deprecated futures-rs functionality.

v0.8.2

  • Prevent a double-borrow that could happen in rare situations with ForkedPromise.

v0.8.1

  • Fix a possible deadlock.

v0.8.0

  • Drop GJ dependency in favor of futures-rs.
  • Fix a bug that could in rare cases cause Disembargo messages to fail with a "does not point back to sender" error.

v0.7.4

  • Eliminate some calls to unwrap(), in favor of saner error handling.
  • Eliminate dependency on zap/c++.zap.

v0.7.3

  • Directly include rpc.zap and rpc-twoparty.zap to make the build more robust.

v0.7.2

  • Fix "unimplemented" panic that could happen on certain broken capabilities.

v0.7.1

  • Fix bug where piplining on a method that returned a null capability could cause a panic.