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Orkuncakilkaya bca8f126fc Networking N2–N6, and a fully C-free toolchain 
Implement the rest of NETWORKING-DESIGN.md (N2–N6) and eliminate every
`.c` file from the repo. clang remains only the LLVM-IR assembler; no C
is compiled anywhere.

Networking (selfhost/emit_net.ludic + parser/emit changes):
- N2 @Sync: per-model serialize/apply + by-kind dispatchers; POD-scalar
  compile error and empty-participation warning; selective replication.
- N3 @Owned: @L_owner array + owner/set_owner/is_owner; owners snapshot.
- N4 @ToServer/@ToClients remote events: framed net_send + net_pump re-emit.
- N5 @Server/@Predicted role guards + drivable sim (tick_fixed/tick_render,
  entry-owns-the-loop).
- Built-in loopback transport so multiplayer runs with zero foreign code;
  extern fn net_send/net_poll still overrides it for a real socket.
- N6 blessed runtime (examples/net_rt.ludic) + end-to-end demo (net_demo).
- Fix: llty("entity") is now i32 (entities are i32 handles), so let e = self().

C elimination:
- Networking + foreign-mod-ABI tests rewritten as self-contained pure-Ludic
  programs (examples/net_*, world_*, mod_events, scoped); tests/ removed.
- Reflection ABI exposed to Ludic as world_* builtins (Ludic-to-Ludic modding).
- Formatter rewritten C→Ludic: tools/ludic-tools/fmt.ludic.
- Language server rewritten C→Ludic: tools/ludic-tools/lsp.ludic (lexer, index
  parser, cross-file workspace resolver, JSON, all LSP handlers).
- Obsolete migrate_*.c codemods deleted; ludic_syntax.h kept as vocabulary data.

Suites: ./test.sh 44/44, ./tools/test-tools.sh 28/28 (LSP 42/42), fixpoint holds.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-29 15:08:23 +03:00
..
gradle/wrapper Baseline: Ludic compiler + toolchain, Phase 1 syntax fixes complete 2026-08-27 15:15:35 +03:00
src Networking N2–N6, and a fully C-free toolchain 2026-08-29 15:08:23 +03:00
build.gradle.kts Baseline: Ludic compiler + toolchain, Phase 1 syntax fixes complete 2026-08-27 15:15:35 +03:00
gradle.properties Baseline: Ludic compiler + toolchain, Phase 1 syntax fixes complete 2026-08-27 15:15:35 +03:00
gradlew Baseline: Ludic compiler + toolchain, Phase 1 syntax fixes complete 2026-08-27 15:15:35 +03:00
gradlew.bat Baseline: Ludic compiler + toolchain, Phase 1 syntax fixes complete 2026-08-27 15:15:35 +03:00
README.md Baseline: Ludic compiler + toolchain, Phase 1 syntax fixes complete 2026-08-27 15:15:35 +03:00
settings.gradle.kts Baseline: Ludic compiler + toolchain, Phase 1 syntax fixes complete 2026-08-27 15:15:35 +03:00

README.md

Ludic for JetBrains IDEs

Works in IntelliJ IDEA (Community and Ultimate), CLion, GoLand, PyCharm, Rider, WebStorm — anything on the IntelliJ Platform 2023.2 through 2026.2 (since-build 232, until-build 262.*).

until-build 262 is deliberately ahead of the newest released platform — 2025.3 is build 253, and no 262 IDE exists yet. That headroom is the point: an until-build pinned to today's IDE gets the plugin auto-disabled the moment a user upgrades.

Two things are machine-checked rather than assumed, because a plugin that packages cleanly can still fail to load:

  • ./gradlew verifyPlugin runs JetBrains' own Plugin Verifier over the built artifact against 2025.3 and reports Compatible, with no deprecated or scheduled-for-removal API usages.
  • ./gradlew runIde boots a real IDEA 2025.3 with the plugin installed. The sandbox log line to look for is Loaded custom plugins: LSP4IJ (0.20.1), Ludic (1.0.0) in .intellijPlatform/sandbox/Ludic/IC-2025.3/log/idea.log.

If the plugin does not appear in Settings -> Plugins after installing, the cause is almost always that the IDE's build number is outside since-build..until-build. IntelliJ installs the declared dependency (LSP4IJ) from Marketplace first and only then rejects the incompatible plugin, so the symptom is "LSP4IJ got installed, mine did not". Check Help -> About for the build number and widen pluginUntilBuild in gradle.properties to match.

Building

Gradle must run on JDK 17–21. A newer JDK fails with a bare version number as the error message, which is not obvious the first time you see it:

export JAVA_HOME=$(/usr/libexec/java_home -v 21)     # macOS
cd tools/editors/jetbrains
./gradlew buildPlugin        # -> build/distributions/Ludic-1.0.0.zip
./gradlew runIde             # try it in a sandbox IDE

The first build downloads an IntelliJ IDEA Community distribution (over 1 GB), so expect it to take a while; later builds take seconds. Once the cache is warm,

LUDIC_TEST_JETBRAINS=1 ./tools/test-tools.sh

includes the plugin build in the toolchain's own test run.

Install the zip with Settings -> Plugins -> ⚙ -> Install Plugin from Disk. LSP4IJ is a required dependency; the IDE offers to install it for you.

Settings

Settings -> Languages & Frameworks -> Ludic — the path to ludic-lsp and to ludicc. Both default to build/ under the project root, which is where tools/build-tools.sh puts them.