perf: only create wasm buffer if requested (#3499)

nodejs · Aug 24, 2024 · a3761f9 · a3761f9
1 parent 04ab9db
commit a3761f9
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Showing 3 changed files with 33 additions and 3 deletions.
diff --git a/build/wasm.js b/build/wasm.js
@@ -33,7 +33,17 @@ const writeWasmChunk = (path, dest) => {
 
 const { Buffer } = require('node:buffer')
 
-module.exports = Buffer.from('${base64}', 'base64')
+const wasmBase64 = '${base64}'
+
+let wasmBuffer
+
+Object.defineProperty(module, 'exports', {
+  get: () => {
+    return wasmBuffer
+      ? wasmBuffer
+      : (wasmBuffer = Buffer.from(wasmBase64, 'base64'))
+  }
+})
 `)
 }
 

diff --git a/lib/llhttp/llhttp-wasm.js b/lib/llhttp/llhttp-wasm.js
diff --git a/lib/llhttp/llhttp_simd-wasm.js b/lib/llhttp/llhttp_simd-wasm.js