chore(internal): improve node 18 shims

Author: stainless-app[bot]

package.json

@@ -49,6 +49,10 @@
   "resolutions": {
     "synckit": "0.8.8"
   },
+  "browser": {
+    "./internal/shims/getBuiltinModule.mjs": "./internal/shims/nullGetBuiltinModule.mjs",
+    "./internal/shims/getBuiltinModule.js": "./internal/shims/nullGetBuiltinModule.js"
+  },
   "imports": {
     "@anthropic-ai/sdk": ".",
     "@anthropic-ai/sdk/*": "./src/*"

scripts/build

@@ -35,8 +35,6 @@ node scripts/utils/fix-index-exports.cjs
 cp tsconfig.dist-src.json dist/src/tsconfig.json
 cp src/internal/shim-types.d.ts dist/internal/shim-types.d.ts
 cp src/internal/shim-types.d.ts dist/internal/shim-types.d.mts
-mkdir -p dist/internal/shims
-cp src/internal/shims/*.{mjs,js,d.ts,d.mts} dist/internal/shims
 
 node scripts/utils/postprocess-files.cjs
 

src/internal/shims/crypto.node.d.mts

@@ -0,0 +1,18 @@
+import { getBuiltinModule } from './getBuiltinModule';
+
+type Crypto = {
+  /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Crypto/getRandomValues) */
+  getRandomValues<T extends ArrayBufferView | null>(array: T): T;
+  /**
+   * Available only in secure contexts.
+   *
+   * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Crypto/randomUUID)
+   */
+  randomUUID?: () => string;
+};
+export let getCrypto: () => Crypto | undefined = function lazyGetCrypto() {
+  if (getCrypto !== lazyGetCrypto) return getCrypto();
+  const crypto: Crypto = (globalThis as any).crypto || (getBuiltinModule?.('node:crypto') as any)?.webcrypto;
+  getCrypto = () => crypto;
+  return crypto;
+};