napi

Author: amaanq

binding.gyp

@@ -2,17 +2,19 @@
   "targets": [
     {
       "target_name": "tree_sitter_c_binding",
+      "dependencies": [
+        "<!(node -p \"require('node-addon-api').targets\"):node_addon_api_except",
+      ],
       "include_dirs": [
-        "<!(node -e \"require('nan')\")",
-        "src"
+        "src",
       ],
       "sources": [
+        "bindings/node/binding.cc",
         "src/parser.c",
-        "bindings/node/binding.cc"
       ],
       "cflags_c": [
-        "-std=c99",
-      ]
+        "-std=c11",
+      ],
     }
   ]
 }

bindings/node/binding.cc

@@ -1,30 +1,20 @@
-#include "nan.h"
-#include "tree_sitter/parser.h"
-#include <node.h>
+#include <napi.h>
 
-using namespace v8;
+typedef struct TSLanguage TSLanguage;
 
 extern "C" TSLanguage *tree_sitter_c();
 
-namespace {
-
-NAN_METHOD(New) {}
-
-void Init(Local<Object> exports, Local<Object> module) {
-    Local<FunctionTemplate> tpl = Nan::New<FunctionTemplate>(New);
-    tpl->SetClassName(Nan::New("Language").ToLocalChecked());
-    tpl->InstanceTemplate()->SetInternalFieldCount(1);
-
-    Local<Function> constructor = Nan::GetFunction(tpl).ToLocalChecked();
-    Local<Object>   instance =
-        constructor->NewInstance(Nan::GetCurrentContext()).ToLocalChecked();
-    Nan::SetInternalFieldPointer(instance, 0, tree_sitter_c());
-
-    Nan::Set(instance, Nan::New("name").ToLocalChecked(),
-             Nan::New("c").ToLocalChecked());
-    Nan::Set(module, Nan::New("exports").ToLocalChecked(), instance);
+// "tree-sitter", "language" hashed with BLAKE2
+const napi_type_tag LANGUAGE_TYPE_TAG = {
+  0x8AF2E5212AD58ABF, 0xD5006CAD83ABBA16
+};
+
+Napi::Object Init(Napi::Env env, Napi::Object exports) {
+    exports["name"] = Napi::String::New(env, "c");
+    auto language = Napi::External<TSLanguage>::New(env, tree_sitter_c());
+    language.TypeTag(&LANGUAGE_TYPE_TAG);
+    exports["language"] = language;
+    return exports;
 }
 
-NODE_MODULE(tree_sitter_c_binding, Init)
-
-} // namespace
+NODE_API_MODULE(tree_sitter_c_binding, Init)

bindings/node/index.d.ts

@@ -0,0 +1,28 @@
+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 = {
+  name: string;
+  language: unknown;
+  nodeTypeInfo: NodeInfo[];
+};
+
+declare const language: Language;
+export = language;

package.json

@@ -3,6 +3,7 @@
   "version": "0.20.8",
   "description": "C grammar for node-tree-sitter",
   "main": "bindings/node",
+  "types": "bindings/node",
   "keywords": [
     "parser",
     "lexer",
@@ -18,7 +19,7 @@
   ],
   "license": "MIT",
   "dependencies": {
-    "nan": "^2.18.0"
+    "node-addon-api": "^7.1.0"
   },
   "devDependencies": {
     "eslint": "^8.56.0",