From 6604334fd25a82dc72a45c350169a2aa092968e0 Mon Sep 17 00:00:00 2001
From: RafaelGSS <rafael.nunu@hotmail.com>
Date: Mon, 30 Sep 2024 10:07:47 -0300
Subject: [PATCH 1/3] lib: runtime deprecate SlowBuffer

---
 doc/api/deprecations.md | 5 ++++-
 lib/buffer.js           | 6 +++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/doc/api/deprecations.md b/doc/api/deprecations.md
index 5d036fa2917ce8..c2de5e297a5390 100644
--- a/doc/api/deprecations.md
+++ b/doc/api/deprecations.md
@@ -695,6 +695,9 @@ Type: End-of-Life
 
 <!-- YAML
 changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/55175
+    description: Runtime deprecation.
   - version: v6.12.0
     pr-url: https://github.com/nodejs/node/pull/10116
     description: A deprecation code has been assigned.
@@ -703,7 +706,7 @@ changes:
     description: Documentation-only deprecation.
 -->
 
-Type: Documentation-only
+Type: Runtime
 
 The [`SlowBuffer`][] class is deprecated. Please use
 [`Buffer.allocUnsafeSlow(size)`][] instead.
diff --git a/lib/buffer.js b/lib/buffer.js
index 2c56b6c504db9b..9c4c46b731a84a 100644
--- a/lib/buffer.js
+++ b/lib/buffer.js
@@ -88,6 +88,7 @@ const {
   kIsEncodingSymbol,
   defineLazyProperties,
   encodingsMap,
+  deprecate,
 } = require('internal/util');
 const {
   isAnyArrayBuffer,
@@ -1324,7 +1325,10 @@ function isAscii(input) {
 
 module.exports = {
   Buffer,
-  SlowBuffer,
+  SlowBuffer: deprecate(
+    SlowBuffer,
+    'SlowBuffer() is deprecated. Please use Buffer.allowUnsafeSlow()',
+    'DEP0030'),
   transcode,
   isUtf8,
   isAscii,

From 895ec9b54d2eb6cc9ca623e853522a2605f6aa8a Mon Sep 17 00:00:00 2001
From: RafaelGSS <rafael.nunu@hotmail.com>
Date: Mon, 30 Sep 2024 10:13:22 -0300
Subject: [PATCH 2/3] fixup! lib: runtime deprecate SlowBuffer

---
 lib/buffer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/buffer.js b/lib/buffer.js
index 9c4c46b731a84a..40a508de063988 100644
--- a/lib/buffer.js
+++ b/lib/buffer.js
@@ -1327,7 +1327,7 @@ module.exports = {
   Buffer,
   SlowBuffer: deprecate(
     SlowBuffer,
-    'SlowBuffer() is deprecated. Please use Buffer.allowUnsafeSlow()',
+    'SlowBuffer() is deprecated. Please use Buffer.allocUnsafeSlow()',
     'DEP0030'),
   transcode,
   isUtf8,

From 0a56956ca4b05cbb8ca46640fd02ed1f3c6565c1 Mon Sep 17 00:00:00 2001
From: RafaelGSS <rafael.nunu@hotmail.com>
Date: Thu, 10 Oct 2024 10:26:00 -0300
Subject: [PATCH 3/3] fixup! fixup! lib: runtime deprecate SlowBuffer

---
 test/parallel/test-buffer-slow.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/test/parallel/test-buffer-slow.js b/test/parallel/test-buffer-slow.js
index 07138d5db0b397..0d89491cfbd155 100644
--- a/test/parallel/test-buffer-slow.js
+++ b/test/parallel/test-buffer-slow.js
@@ -1,12 +1,18 @@
 'use strict';
 
-require('../common');
+const common = require('../common');
 const assert = require('assert');
 const buffer = require('buffer');
 const SlowBuffer = buffer.SlowBuffer;
 
 const ones = [1, 1, 1, 1];
 
+common.expectWarning(
+  'DeprecationWarning',
+  'SlowBuffer() is deprecated. Please use Buffer.allocUnsafeSlow()',
+  'DEP0030'
+);
+
 // Should create a Buffer
 let sb = SlowBuffer(4);
 assert(sb instanceof Buffer);