From 688b961d13bd54a14836f08c3ded3121d3fb15a0 Mon Sep 17 00:00:00 2001 From: Lewis Russell Date: Fri, 19 Apr 2024 16:04:57 +0100 Subject: feat(treesitter): add support for wasm parsers 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= make ...` --- runtime/lua/vim/treesitter/language.lua | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'runtime/lua/vim/treesitter/language.lua') diff --git a/runtime/lua/vim/treesitter/language.lua b/runtime/lua/vim/treesitter/language.lua index d0a74daa6c..e31ce6cb59 100644 --- a/runtime/lua/vim/treesitter/language.lua +++ b/runtime/lua/vim/treesitter/language.lua @@ -109,7 +109,14 @@ function M.add(lang, opts) path = paths[1] end - vim._ts_add_language(path, lang, symbol_name) + if vim.endswith(path, '.wasm') then + if not vim._ts_add_language_from_wasm then + error(string.format("Unable to load wasm parser '%s': not built with ENABLE_WASMTIME ", path)) + end + vim._ts_add_language_from_wasm(path, lang) + else + vim._ts_add_language_from_object(path, lang, symbol_name) + end M.register(lang, filetype) end -- cgit