Add TypeScript typings (#1)

index.d.ts

@@ -0,0 +1,36 @@
+import Buffer, { BufferEncoding } from 'bare-buffer'
+
+declare function lex(
+  input: string | Buffer,
+  encoding?: BufferEncoding
+): {
+  imports: {
+    specifier: string
+    type: number
+    names: string[]
+    position: [
+      importStart: number,
+      specifierStart: number,
+      specifierEnd: number
+    ]
+  }[]
+
+  exports: {
+    name: string
+    position: [exportStart: number, nameStart: number, nameEnd: number]
+  }[]
+}
+
+declare namespace lex {
+  export const constants: {
+    REQUIRE: number
+    IMPORT: number
+    DYNAMIC: number
+    ADDON: number
+    ASSET: number
+    RESOLVE: number
+    REEXPORT: number
+  }
+}
+
+export = lex

package.json

@@ -3,7 +3,10 @@
   "version": "1.1.0",
   "description": "Heuristic lexer for detecting imports and exports in JavaScript modules",
   "exports": {
-    ".": "./index.js",
+    ".": {
+      "types": "./index.d.ts",
+      "default": "./index.js"
+    },
     "./package": "./package.json"
   },
   "imports": {
@@ -14,6 +17,7 @@
   },
   "files": [
     "index.js",
+    "index.d.ts",
     "lex.h",
     "binding.c",
     "binding/bare.js",
@@ -42,12 +46,16 @@
     "require-addon": "^1.0.2"
   },
   "devDependencies": {
+    "bare-buffer": "^2.7.1",
     "bare-compat-napi": "^1.0.0",
     "brittle": "^3.1.1",
     "cmake-bare": "^1.1.7",
     "cmake-napi": "^1.0.5",
     "cmake-npm": "^1.0.2",
     "prettier": "^3.4.1",
     "prettier-config-standard": "^7.0.0"
+  },
+  "peerDependencies": {
+    "bare-buffer": "*"
   }
 }