builtins/string: repeat empty special case

test262: 55.44% | 🧪 50257 | 🤠 27862 (+1) | ❌ 7132 | 💀 14044 | 🏗️ 32 | 💥 177 | ⏰ 11 (-1) | 📝 999
CanadaHonk · Dec 24, 2024 · 611600b · 611600b
1 parent c1512ed
commit 611600b
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Showing 5 changed files with 10 additions and 6 deletions.
diff --git a/compiler/builtins/string.ts b/compiler/builtins/string.ts
@@ -1162,6 +1162,8 @@ export const __String_prototype_repeat = (_this: string, cnt: any) => {
 
   let out: string = Porffor.allocate();
   const thisLen: i32 = _this.length * 2;
+  if (thisLen == 0) return '';
+
   for (let i: i32 = 0; i < count; i++) {
     Porffor.wasm`
 ;; dst = out + 4 + i * thisLen
@@ -1194,6 +1196,8 @@ export const __ByteString_prototype_repeat = (_this: string, cnt: any) => {
 
   let out: bytestring = Porffor.allocate();
   const thisLen: i32 = _this.length;
+  if (thisLen == 0) return '';
+
   for (let i: i32 = 0; i < count; i++) {
     Porffor.wasm`
 ;; dst = out + 4 + i * thisLen

diff --git a/compiler/builtins_precompiled.js b/compiler/builtins_precompiled.js
diff --git a/package.json b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "porffor",
   "description": "a basic experimental wip aot optimizing js -> wasm engine/compiler/runtime in js",
-  "version": "0.55.10",
+  "version": "0.55.11",
   "author": "CanadaHonk",
   "license": "MIT",
   "scripts": {},

diff --git a/runner/index.js b/runner/index.js
@@ -1,6 +1,6 @@
 #!/usr/bin/env node
 import fs from 'node:fs';
-globalThis.version = '0.55.10';
+globalThis.version = '0.55.11';
 
 // deno compat
 if (typeof process === 'undefined' && typeof Deno !== 'undefined') {

diff --git a/test262/history.json b/test262/history.json