Fixes #4062 (#4106)

* Fixes #4062

* Update encoding.zig

* Use faster C++ impl

* Update wtf-bindings.cpp

* undo

* Fixup

---------

Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/bun.js/bindings/BunString.cpp b/src/bun.js/bindings/BunString.cpp
index 09b545cba..5f312a28f 100644
--- a/src/bun.js/bindings/BunString.cpp
+++ b/src/bun.js/bindings/BunString.cpp
@@ -60,6 +60,11 @@ JSC::JSValue toJS(JSC::JSGlobalObject* globalObject, BunString bunString)
     return JSValue(Zig::toJSStringGC(bunString.impl.zig, globalObject));
 }
 
+JSC::JSValue toJS(JSC::JSGlobalObject* globalObject, BunString bunString, size_t length)
+{
+    return jsSubstring(globalObject, jsUndefined(), Bun::toWTFString(bunString), 0, length);
+}
+
 WTF::String toWTFString(const BunString& bunString)
 {
     if (bunString.tag == BunStringTag::ZigString) {
@@ -195,6 +200,11 @@ extern "C" JSC::EncodedJSValue BunString__toJS(JSC::JSGlobalObject* globalObject
     return JSValue::encode(Bun::toJS(globalObject, *bunString));
 }
 
+extern "C" JSC::EncodedJSValue BunString__toJSWithLength(JSC::JSGlobalObject* globalObject, BunString* bunString, size_t length)
+{
+    return JSValue::encode(Bun::toJS(globalObject, *bunString, length));
+}
+
 extern "C" BunString BunString__fromUTF16Unitialized(size_t length)
 {
     unsigned utf16Length = length;