feat: add basic tree-sitter

bindings/node/binding.cc

@@ -0,0 +1,19 @@
+#include <napi.h>
+
+typedef struct TSLanguage TSLanguage;
+
+extern "C" TSLanguage *tree_sitter_noil();
+
+// "tree-sitter", "language" hashed with BLAKE2
+const napi_type_tag LANGUAGE_TYPE_TAG = {
+    0x8AF2E5212AD58ABF, 0xD5006CAD83ABBA16
+};
+
+Napi::Object Init(Napi::Env env, Napi::Object exports) {
+    auto language = Napi::External<TSLanguage>::New(env, tree_sitter_noil());
+    language.TypeTag(&LANGUAGE_TYPE_TAG);
+    exports["language"] = language;
+    return exports;
+}
+
+NODE_API_MODULE(tree_sitter_noil_binding, Init)

bindings/node/binding_test.js

@@ -0,0 +1,9 @@
+const assert = require("node:assert");
+const { test } = require("node:test");
+
+const Parser = require("tree-sitter");
+
+test("can load grammar", () => {
+  const parser = new Parser();
+  assert.doesNotThrow(() => parser.setLanguage(require(".")));
+});

bindings/node/index.d.ts

@@ -0,0 +1,27 @@
+type BaseNode = {
+  type: string;
+  named: boolean;
+};
+
+type ChildNode = {
+  multiple: boolean;
+  required: boolean;
+  types: BaseNode[];
+};
+
+type NodeInfo =
+  | (BaseNode & {
+      subtypes: BaseNode[];
+    })
+  | (BaseNode & {
+      fields: { [name: string]: ChildNode };
+      children: ChildNode[];
+    });
+
+type Language = {
+  language: unknown;
+  nodeTypeInfo: NodeInfo[];
+};
+
+declare const language: Language;
+export = language;

bindings/node/index.js

@@ -0,0 +1,11 @@
+const root = require("path").join(__dirname, "..", "..");
+
+module.exports =
+  typeof process.versions.bun === "string"
+    // Support `bun build --compile` by being statically analyzable enough to find the .node file at build-time
+    ? require(`../../prebuilds/${process.platform}-${process.arch}/tree-sitter-noil.node`)
+    : require("node-gyp-build")(root);
+
+try {
+  module.exports.nodeTypeInfo = require("../../src/node-types.json");
+} catch (_) {}