From 594444704d531d0bb536d8e7c7b0c0327348a9ad Mon Sep 17 00:00:00 2001
From: Milos Djermanovic <milos.djermanovic@gmail.com>
Date: Tue, 24 Mar 2020 03:01:39 +0100
Subject: [PATCH] Specify assumptions for `needsParens`

---
 lib/rules/no-extra-boolean-cast.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/rules/no-extra-boolean-cast.js b/lib/rules/no-extra-boolean-cast.js
index d083eea6e5d..aba8e63e086 100644
--- a/lib/rules/no-extra-boolean-cast.js
+++ b/lib/rules/no-extra-boolean-cast.js
@@ -141,6 +141,9 @@ module.exports = {
 
         /**
          * Determines whether the given node needs to be parenthesized when replacing the previous node.
+         * It assumes that `previousNode` is the node to be reported by this rule, so it has a limited list
+         * of possible parent node types. By the same assumption, the node's role in a particular parent is already known.
+         * For example, if the parent is `ConditionalExpression`, `previousNode` must be its `test` child.
          * @param {ASTNode} previousNode Previous node.
          * @param {ASTNode} node The node to check.
          * @returns {boolean} `true` if the node needs to be parenthesized.