Examples index

One runnable round trip per binding: build the tutorial message, encode it, decode it back, print it. Most run from the repo root; every command below is quoted from that binding's README or build.sh.

binding	example	run
C	bindings/c/examples/addressbook.c, gateway.c	make test builds and runs both
C++	bindings/cpp/examples/addressbook.cc	make examples
Embedded	bindings/embedded/examples/roundtrip.c	make test builds and runs it
Python	bindings/python/examples/addressbook.py	python bindings/python/examples/addressbook.py
Go	bindings/go/examples/roundtrip.go	go run ./examples/roundtrip.go (from bindings/go)
Java	bindings/java/examples/Roundtrip.java	cd bindings/java && ./build.sh (self-check + example)
Kotlin	bindings/kotlin/examples/Roundtrip.kt	cd bindings/kotlin && ./build.sh (fat jar + RoundtripKt)
Clojure	bindings/clojure/examples/roundtrip.clj	cd bindings/clojure && ./build.sh (clojure.main -m roundtrip)
Scala	bindings/scala/examples/	cd bindings/scala && ./build.sh (javac + scalac, self-check + example)
Node	bindings/node/examples/roundtrip.js	node bindings/node/examples/roundtrip.js
Ruby	bindings/ruby/examples/roundtrip.rb	ruby -Ibindings/ruby/lib bindings/ruby/examples/roundtrip.rb
Objective-C	bindings/objc/examples/	bindings/objc/build.sh example
PHP	bindings/php/examples/roundtrip.php	php examples/roundtrip.php (from bindings/php)
Dart	bindings/dart/examples/roundtrip.dart	dart run examples/roundtrip.dart (from bindings/dart)
Rust	bindings/rust/examples/roundtrip.rs	cargo run --example roundtrip -- ../c/tests/data/matrix3.desc (from bindings/rust)
C#	bindings/csharp/examples/	dotnet run --project examples -- ../c/tests/data/matrix3.desc (from bindings/csharp)
F#	bindings/fsharp/examples/	dotnet run --project examples -- ../c/tests/data/matrix3.desc (from bindings/fsharp)
Lua	bindings/lua/examples/roundtrip.lua	lua examples/roundtrip.lua (from bindings/lua; also run by make lua-test)
Erlang	bindings/erlang/examples/addressbook.escript	escript examples/addressbook.escript (from bindings/erlang)
Elixir	bindings/elixir/examples/addressbook.exs	mix run examples/addressbook.exs (from bindings/elixir)
Zig	bindings/zig/examples/roundtrip.zig	zig build example (from bindings/zig)
Swift	bindings/swift/examples/gen/ (generated model)	cd bindings/swift && ./build.sh example
Julia	bindings/julia/examples/roundtrip.jl	julia --project=runtime examples/roundtrip.jl (from bindings/julia)
R	bindings/r/examples/roundtrip.R	Rscript examples/roundtrip.R (from bindings/r)

Typed variants of the same round trip live in codegen: every binding's tests/gen/ (committed output of protoc-gen-pbwire) and examples/gen/ (the same addressbook through the generated model). The official-conformance angle is in testing.md; the numbers angle in ../BENCHMARKS.md.