Shave another 10 bytes off each gzip file (#5)

Shave another 10 bytes off each gzip file
GoogleChromeLabs · Sep 13, 2019 · 3d4bb99 · 3d4bb99
2 parents 3ae1f0d + 7c4a54d
commit 3d4bb99
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Showing 3 changed files with 13 additions and 17 deletions.
diff --git a/README.md b/README.md
@@ -1,6 +1,6 @@
 # WebAssembly Feature Detection
 
-A small library (~560B gzip’d) to detect which features of WebAssembly are supported in your current browser.
+A small library (~550B gzip’d) to detect which features of WebAssembly are supported in your current browser.
 
 ## Installation
 

diff --git a/rollup-plugins/index-generator.js b/rollup-plugins/index-generator.js
@@ -30,7 +30,6 @@ export default function({ indexPath, pluginFolder }) {
       }
 
       const plugins = await fsp.readdir(rootPluginPath);
-      const base64s = [];
       const sources = await Promise.all(
         plugins.map(async plugin => {
           const source = await fsp.readFile(
@@ -41,27 +40,26 @@ export default function({ indexPath, pluginFolder }) {
             "",
             ""
           ])[1].split(" ");
-          const module = await compileWat(
-            `./src/${pluginFolder}/${plugin}/module.wat`,
-            flags
-          );
-          const hexModule = module.toString("hex");
+          const module = JSON.stringify([
+            ...(await compileWat(
+              `./src/${pluginFolder}/${plugin}/module.wat`,
+              flags
+            ))
+          ]);
           if (await fileExists(`./src/${pluginFolder}/${plugin}/index.js`)) {
             return `
             import { default as ${camelCaseify(
               plugin
             )}_internal } from "./${pluginFolder}/${plugin}/index.js";
             export async function ${camelCaseify(plugin)}() {
-              return (await Promise.all([validate(${JSON.stringify(
-                hexModule
-              )}), ${camelCaseify(plugin)}_internal()])).every(x => x);
+              return (await Promise.all([validate(${module}), ${camelCaseify(
+              plugin
+            )}_internal()])).every(x => x);
             }
             `;
           }
           return `
-          export const ${camelCaseify(
-            plugin
-          )} = validate.bind(null, ${JSON.stringify(hexModule)});
+          export const ${camelCaseify(plugin)} = validate.bind(null, ${module});
           `;
         })
       );

diff --git a/src/helpers.js b/src/helpers.js
@@ -14,8 +14,6 @@
 // This function only exists because `WebAssembly.validate` will
 // be called quite often and by having our own function terser can give it
 // a one-letter name.
-export async function validate(hexModule) {
-  return WebAssembly.validate(
-    new Uint8Array(hexModule.match(/(.{1,2})/g).map(v => parseInt(v, 16)))
-  );
+export async function validate(module) {
+  return WebAssembly.validate(new Uint8Array(module));
 }