Add Chris Morgan's suggestions

README.md

@@ -6,7 +6,7 @@ A small library to detect which features of WebAssembly are supported.
 - ✅ Runs in Node
 - ✅ Provided as an ES6 module, CommonJS and UMD module.
 - ✅ CSP compatible
-- ✅ Only ~580B gzipped
+- ✅ Only ~560B gzipped
 
 ## Installation
 

rollup-plugins/index-generator.js

@@ -40,7 +40,7 @@ export default function({ indexPath, pluginFolder }) {
             "",
             ""
           ])[1].split(" ");
-          const module = JSON.stringify([
+          const moduleBytes = JSON.stringify([
             ...(await compileWat(
               `./src/${pluginFolder}/${plugin}/module.wat`,
               flags
@@ -51,17 +51,16 @@ export default function({ indexPath, pluginFolder }) {
             const importName = `${pluginName}_internal`;
             return `
             import { default as ${importName} } from "./${pluginFolder}/${plugin}/index.js";
-            export const ${pluginName} = ${importName}.bind(null, new Uint8Array(${module}), validate);
+            export const ${pluginName} = () => ${importName}(new Uint8Array(${moduleBytes}));
             `;
           }
           return `
-          export const ${pluginName} = validate.bind(null, new Uint8Array(${module}));
+          export const ${pluginName} = () => WebAssembly.validate(new Uint8Array(${moduleBytes}));
           `;
         })
       );
 
       return `
-      import { validate } from './helpers.js';
       ${sources.join("\n")}
       `;
     }

src/detectors/big-int/index.js

@@ -11,16 +11,16 @@
  * limitations under the License.
  */
 
-export default async function(bytes) {
+export default async moduleBytes => {
   try {
     // This will throw a ReferenceError on platforms where BigInt is not
     // supported. Please do not change the right hand side value to BigInt
     // literal (i.e. 0n), cause in that case a SyntaxError will be thrown
     // before an execution.
     const n = BigInt(0);
-    const instance = await WebAssembly.instantiate(bytes);
+    const instance = await WebAssembly.instantiate(moduleBytes);
     return instance.instance.exports.b(n) === n;
   } catch (e) {
     return false;
   }
-}
+};

src/detectors/threads/index.js

@@ -11,8 +11,8 @@
  * limitations under the License.
  */
 
-export default async function(module, validate) {
-  if (!(await validate(module))) return false;
+export default moduleBytes => {
+  if (!WebAssembly.validate(moduleBytes)) return false;
   try {
     // Test for transferability of SABs (needed for Firefox)
     // https://groups.google.com/forum/#!msg/mozilla.dev.platform/IHkBZlHETpA/dwsMNchWEQAJ
@@ -21,4 +21,4 @@ export default async function(module, validate) {
   } catch (e) {
     return false;
   }
-}
+};