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feat(treesitter): add support for wasm parsers

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Problem: Installing treesitter parser is hard (harder than
climbing to heaven).

Solution: Add optional support for wasm parsers with `wasmtime`.

Notes:

* Needs to be enabled by setting `ENABLE_WASMTIME` for tree-sitter and
  Neovim. Build with
  `make CMAKE_EXTRA_FLAGS=-DENABLE_WASMTIME=ON
  DEPS_CMAKE_FLAGS=-DENABLE_WASMTIME=ON`
* Adds optional Rust (obviously) and C11 dependencies.
* Wasmtime comes with a lot of features that can negatively affect
  Neovim performance due to library and symbol table size. Make sure to
  build with minimal features and full LTO.
* To reduce re-compilation times, install `sccache` and build with
  `RUSTC_WRAPPER=<path/to/sccache> make ...`
This commit is contained in:
Lewis Russell
2024-04-19 16:04:57 +01:00
committed by Christian Clason
parent 664de5ea97
commit 688b961d13
17 changed files with 272 additions and 20 deletions
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10
src/nvim/lua/executor.c
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@@ -924,6 +924,7 @@ void nlua_free_all_mem(void)
lua_State *lstate = global_lstate;
nlua_unref_global(lstate, require_ref);
nlua_common_free_all_mem(lstate);
tslua_free();
}
static void nlua_common_free_all_mem(lua_State *lstate)
@@ -1902,8 +1903,13 @@ static void nlua_add_treesitter(lua_State *const lstate) FUNC_ATTR_NONNULL_ALL
lua_pushcfunction(lstate, tslua_push_querycursor);
lua_setfield(lstate, -2, "_create_ts_querycursor");
lua_pushcfunction(lstate, tslua_add_language);
lua_setfield(lstate, -2, "_ts_add_language");
lua_pushcfunction(lstate, tslua_add_language_from_object);
lua_setfield(lstate, -2, "_ts_add_language_from_object");
#ifdef HAVE_WASMTIME
lua_pushcfunction(lstate, tslua_add_language_from_wasm);
lua_setfield(lstate, -2, "_ts_add_language_from_wasm");
#endif
lua_pushcfunction(lstate, tslua_has_language);
lua_setfield(lstate, -2, "_ts_has_language");