From e19478aa7669c1fa8324a4b02aea68bb1eef736f Mon Sep 17 00:00:00 2001
From: Antoine du Hamel <duhamelantoine1995@gmail.com>
Date: Sat, 7 Nov 2020 17:33:51 +0100
Subject: [PATCH] tools,lib: recommend using safe primordials
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Make the linter recommend replacing `globalThis.Map` by
`primordials.SafeMap`, and similar for `Set`, `WeakSet`, and `WeakMap`.

PR-URL: https://github.com/nodejs/node/pull/36026
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Shingo Inoue <leko.noor@gmail.com>
---
 lib/.eslintrc.yaml                              | 4 ++++
 test/parallel/test-eslint-prefer-primordials.js | 9 +++++++++
 2 files changed, 13 insertions(+)

diff --git a/lib/.eslintrc.yaml b/lib/.eslintrc.yaml
index 0fb39d56b2f584..deea6bf4fb05ae 100644
--- a/lib/.eslintrc.yaml
+++ b/lib/.eslintrc.yaml
@@ -55,6 +55,7 @@ rules:
       into: Number
     - name: JSON
     - name: Map
+      into: Safe
     - name: Math
     - name: Number
     - name: Object
@@ -68,6 +69,7 @@ rules:
     - name: Reflect
     - name: RegExp
     - name: Set
+      into: Safe
     - name: String
     - name: Symbol
     - name: SyntaxError
@@ -78,7 +80,9 @@ rules:
     - name: Uint8ClampedArray
     - name: URIError
     - name: WeakMap
+      into: Safe
     - name: WeakSet
+      into: Safe
 globals:
   Intl: false
   # Parameters passed to internal modules
diff --git a/test/parallel/test-eslint-prefer-primordials.js b/test/parallel/test-eslint-prefer-primordials.js
index d9417e857c2089..6a28f541e4de84 100644
--- a/test/parallel/test-eslint-prefer-primordials.js
+++ b/test/parallel/test-eslint-prefer-primordials.js
@@ -77,6 +77,10 @@ new RuleTester({
         `,
         options: [{ name: 'Reflect' }],
       },
+      {
+        code: 'const { Map } = primordials; new Map()',
+        options: [{ name: 'Map', into: 'Safe' }],
+      },
     ],
     invalid: [
       {
@@ -154,5 +158,10 @@ new RuleTester({
         options: [{ name: 'Reflect' }],
         errors: [{ message: /const { ReflectOwnKeys } = primordials/ }]
       },
+      {
+        code: 'new Map()',
+        options: [{ name: 'Map', into: 'Safe' }],
+        errors: [{ message: /const { SafeMap } = primordials/ }]
+      },
     ]
   });