feat: TextEncoder.prototype.encodeInto polyfill

ChALkeR · ChALkeR · commit 0949a595cadf · 2025-11-29T21:07:42.000+04:00
diff --git a/bundler/modules/text-encoding-utf.cjs b/bundler/modules/text-encoding-utf.cjs
@@ -52,8 +52,12 @@ TextEncoder.prototype.encode = function (str) {
   return new Uint8Array(buf.buffer, buf.byteOffset, buf.length)
 }
 
-TextEncoder.prototype.encodeInto = function () {
-  throw new Error('not supported')
+TextEncoder.prototype.encodeInto = function (str, ua) {
+  if (!(ua instanceof Uint8Array)) throw new Error('second argument must be an Uint8Array')
+  const buf = Buffer.from(str)
+  if (ua.length < buf.length) throw new Error('Truncation not supported')
+  ua.set(buf)
+  return { read: str.length, written: buf.length }
 }
 
 function TextDecoder(encoding = UTF8, options = {}) {

Original file line number	Diff line number	Diff line change
`@@ -52,8 +52,12 @@ TextEncoder.prototype.encode = function (str) {`
`52`	`52`	`return new Uint8Array(buf.buffer, buf.byteOffset, buf.length)`
`53`	`53`	`}`
`54`	`54`
`55`		`-TextEncoder.prototype.encodeInto = function () {`
`56`		`- throw new Error('not supported')`
	`55`	`+TextEncoder.prototype.encodeInto = function (str, ua) {`
	`56`	`+ if (!(ua instanceof Uint8Array)) throw new Error('second argument must be an Uint8Array')`
	`57`	`+ const buf = Buffer.from(str)`
	`58`	`+ if (ua.length < buf.length) throw new Error('Truncation not supported')`
	`59`	`+ ua.set(buf)`
	`60`	`+ return { read: str.length, written: buf.length }`
`57`	`61`	`}`
`58`	`62`
`59`	`63`	`function TextDecoder(encoding = UTF8, options = {}) {`